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 Optical data center network system and optical switch patent thumbnailOptical data center network system and optical switch
An optical data center network system including multiple tier-1 optical switches, multiple tier-2 optical switches and multiple tier-3 optical switches is provided. A pod is formed by the tier-1 optical switches connected to each other through ribbon fibers.
National Chiao Tung University


 Multi-purpose eyewear article patent thumbnailMulti-purpose eyewear article
An eyewear article for performing viewing functions is provided. The viewing functions supported include viewing different types of 3d displays, emulating the pulfrich effect, and viewing a loaded 3d image sequence.
3nd Technology Limited


 Projection lens and projector patent thumbnailProjection lens and projector
A projection lens included in a projector using laser beams as a light source is provided, the laser beams including as the light source, first blue laser light beams, second blue laser beams, first green laser beams, second green laser beams, first red laser beams, and second red laser beams, which are different in wavelength range. The projection lens has a relative maximum value of a transmittance on an optical axis between a wavelength not shorter than 645 nm and a wavelength not longer than 680 nm..
Konica Minolta, Inc.


 Three-plate optical system and projector patent thumbnailThree-plate optical system and projector
A three-plate image projecting optical system that has a compact and simple configuration and achieves enhanced luminance efficiency and reduction of light quantity loss on the dichroic coating, and a projector equipped with the optical system. The optical system includes a color separating/combining prism having a first/second dichroic coatings, and a first to third digital micromirror devices.
Konica Minolta, Inc.


 Image capturing apparatus and control  the same patent thumbnailImage capturing apparatus and control the same
An image capturing apparatus includes an image sensor, an optical system that forms a subject image on an image sensing plane of the image sensor, a driving unit that curves the image sensor, and a control unit that controls the driving unit to curve the image sensor to a curvature according to aberration of the optical system and image capturing conditions.. .
Canon Kabushiki Kaisha


 Method and system for reducing motion blur when experiencing virtual or augmented reality environments patent thumbnailMethod and system for reducing motion blur when experiencing virtual or augmented reality environments
A system or apparatus for reducing motion blur includes an active shutter system, shutter control and processing components, an optional optical sensor, one or more optional movement sensors, and a power source, and can cooperate with a virtual or augmented reality system and display. The shutter system is optimally positioned between a user and the display so that one or more shutters of the system can be activated to block a user's view of the display.
Ion Virtual Technology Corporation


 Mems fast focus camera module patent thumbnailMems fast focus camera module
An auto focus camera module includes a camera module housing defining an aperture and an internal cavity to accommodate camera module components, an image sensor coupled to or within the housing, a lens barrel within the housing that contains an optical train including at least one movable lens disposed relative to the aperture and image sensor to focus images of scenes onto the image sensor along an optical path, and a fast focus mems actuator coupled to one or more lenses of the optical train including the at least one movable lens and configured to rapidly move said at least one movable lens relative to the image sensor to provide autofocus for the camera module in each frame of a preview or video sequence or both.. .
Digitaloptics Corporation Mems


 Light guide, illuminating device, and image reading device patent thumbnailLight guide, illuminating device, and image reading device
A light guide includes an incident surface provided at least at an end portion of the light guide in a longitudinal direction, and receiving light from a light source, an output surface constituting a part of an outer peripheral surface, and outputting the light introduced through the incident surface, a reflecting surface extending along the optical axis so as to oppose the output surface, and including a plurality of reflection patterns that reflect the introduced light toward the output surface, and a reflecting plate opposed to a region in the outer peripheral surface other than the incident surface, the output surface, and the reflecting surface, and reflecting the light from the light source. The outer peripheral surface includes a sloped portion formed so as to come closer to the reflecting plate in a direction away from the incident surface in the longitudinal direction..
Kyocera Document Solutions Inc.


 Optical navigation module with decoration light using interference avoidance method patent thumbnailOptical navigation module with decoration light using interference avoidance method
A method of eliminating interference at an optical sensor of a mobile device that receives light from multiple light sources. The mobile device includes an optical navigation module having a cover and an illumination device disposed around the periphery of the cover.
Blackberry Limited


 Transmission  based on management data input/output multi-source agreements patent thumbnailTransmission based on management data input/output multi-source agreements
The present invention discloses a transmission method and device based on a management data input/output multi-source agreement. The method includes that: at least one frame is sent, and a host indicates, according to opcodes carried by the at least one frame, to perform a data reading operation or a continuous data reading operation or a data writing operation on an optical module; the at least one frame is used, during checking, for respectively calculating check values at the host and the optical module; it is determined, according to a result of comparison between the check values, whether the check values are correct, and it is decided whether it is needed to repeat the data reading operation or the continuous data reading operation or the data writing operation..
Zte Corporation


Optical network unit (onu) for low latency packet transmission in time division multiplexing-passive optical network (tdm-pon), operating the same, and controlling onu


Provided are an optical network unit (onu) for low latency packet transmission in a time division multiplexing-passive optical network (tdm-pon), a method of operating the onu, and an apparatus for controlling the onu. The method includes: receiving, from a base station, first bandwidth allocation information regarding a bandwidth allocated by the base station to a terminal for uplink packet transmission; and transmitting a bandwidth allocation request, which is based on the received first bandwidth allocation information, to an optical line terminal (olt) before completing packet reception from the base station..
Electronics And Telecommunications Research Institute


Systems and methods of generalized docsis provisioning over passive optical network


In example embodiments of the systems and methods of generalized docsis provisioning over passive optical network disclosed herein, doscis oss management is mapped to tdm pon management via a docsis management proxy (dmp). A dmp communicates with the tdm pon management plane as a proxy of the docsis oss management plane.
Cox Communications, Inc.


Optical transmitters


An optical transmitter may include a transmit laser assembly configured to emit multiple light beams. The optical transmitter may additionally include an isolator configured to rotate a corresponding polarization state of each of the multiple light beams.
Finisar Corporation


Optical receiver that has function to detect signal superimposed on optical signal and receiving optical signal


An optical receiver receives a wavelength multiplexed optical signal including wavelength channels. A superimposition signal is superimposed by frequency modulation on each of the wavelength channels.
Fujitsu Limited


Modem, communications modem, and wireless charging


The present invention provides a communications method of a modem, including: determining a current power supply mode; if it is determined that the current power supply mode is that a network device is used to supply power by using a copper twisted pair, switching a communications interface from a fiber interface to an electrical interface, where the electrical interface connects to the network device by using the copper twisted pair and the fiber interface connects to a passive optical network by using an optical fiber. The present invention further provides a modem, and a wireless charging method and device.
Huawei Technologies Co., Ltd.


Fibre-optic enclosure


Passive fibre-optic enclosure comprising, a) one or more fibre-optic functional units of a telecommunication network, optically connectable, via an optical fibre, with a central network unit, for receiving telecommunication signals for one or more subscribers via the optical fibre from the central network unit, characterized in that the enclosure further comprises, on the inside of the enclosure, b) transceiving means, which is operable to generate first optical signals using electrical energy, which is operable to receive optical response signals from the central network unit, which is optically connectable to the optical fibre such that the first optical signals can be transmitted by the optical fibre to the central network unit, and such that optical response signals can be transmitted by the optical fibre from the central network unit to the transceiving means.. .
3m Innovative Properties Company


Apparatus and recognizing optical connector connection


Provided is an apparatus of recognizing optical connector connection including an ic tag connection unit configured to provide bus power and detect whether the optical connector is connected to an optical adapter, an ic tag configured to store an ic tag id uniquely given to the optical connector, which is connected to a corresponding optical cable, and to receive the bus power to be driven for bus communication, and an ic tag id obtaining unit configured to obtain the ic tag id stored in the ic tag through the ic tag connection unit, when the optical connector is connected to the optical adapter.. .
Electronics And Telecommunications Research Institute


Pilot-aided coherent receiver for optical communications


A method decodes an optical signal transmitted over an optical channel from a transmitter to a receiver. The receiver receives the transmitted optical signal to produce a digital signal including data symbols and pilot symbols, and determines filtering coefficients based on an error between amplitudes of the received pilot symbols and amplitudes of transmitted pilot symbols, while ignoring errors between phases of the received pilot symbols and phases of the transmitted pilot symbols.
Mitsubishi Electric Research Laboratories, Inc.


Radiation receiver apparatus


Radiation receiver apparatus with a radiation receiver and a radiation entrance face, wherein the radiation receiver includes an active region that detects radiation with a target wavelength in the near-infrared, an optical element is arranged between the radiation entrance face and the radiation receiver, an optical axis of the optical element extends through the radiation receiver, the optical element is shaped and arranged relative to the radiation receiver such that, of radiation incident on the radiation entrance face at an angle of greater than or equal to 40° to the optical axis, at most 10% is incident on the radiation receiver, and a visible light filter is formed between the radiation receiver and the radiation entrance face.. .
Osram Opto Semiconductors Gmbh


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Optoelectronic equalizer circuit


We disclose an optoelectronic circuit that is configurable to operate as an fir filter, in which the tapping and the weighting of the signal that is being equalized are performed in the optical domain, whereas the summation of the weighted signals is performed in the electrical domain after the corresponding optical signals are converted into electrical form using an array of photodetectors. Photodetectors in the array are arranged such that some of them contribute to the equalized electrical signal with a positive polarity and the others contribute to the equalized electrical signal with a negative polarity.
Alcatel-lucent Usa Inc.


Optical transmission module


An optical transmission module that converts an electric signal to an optical signal and outputs the optical signal, including: a package; a plurality of light-emitting elements each emitting light in the interior of the package; a plurality of light-receiving elements each including a light-receiving surface on which a portion of the light is incident in the interior of the package, for monitoring light outputs of the plurality of light-emitting elements; and light-shielding members provided on the plurality of light-receiving elements while avoiding the light-receiving surfaces.. .
Oclaro Japan, Inc.


Method and system for photonic interposer


Methods and systems for a photonic interposer are disclosed and may include receiving one or more continuous wave (cw) optical signals in a silicon photonic interposer from an external optical source, either from an optical source assembly or from optical fibers coupled to the silicon photonic interposer. A modulated optical signal may be generated by processing the received cw optical signals based on a first electrical signal received from the electronics die.
Luxtera, Inc.


Optical communication interface utilizing n-dimensional double square quadrature amplitude modulation


The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using ndsq format(s) over optical communication networks.
Inphi Corporation


System and extending time division passive optical network services to plastic optical fiber in the home


A system (87; fig. 2) is disclosed to provide a time division multiple access passive optical network to a plastic optical fiber to be used in both single-family home networks and in multiple dwelling units.
Cox Communications, Inc.


Fiber optic assemblies for tapping live optical fibers in fiber optic networks employing parallel optics


A fiber optic assembly for supporting optical connections in a fiber optic network employing parallel optical configurations is described. In one embodiment, the fiber optic assembly includes at least two live multi-fiber components and at least one tap multi-fiber component.
Corning Optical Communications Llc


Led light interior room and building communication system


An led light and communication system in communication with a broadband over power line communications system. The led light and communication system includes at least one optical transceiver.
Federal Law Enforcement Development Services, Inc.


Uspl-fso lasercom point-to-point and point-to-multipoint optical wireless communication


Enhancements in optical beam propagation performance can be realized through the utilization of ultra-short pulse laser (uspl) sources for laser transmit platforms, which are can be used throughout the telecommunication network infrastructure fabric. One or more of the described and illustrated features of uspl free space-optical (uspl-fso) laser communications can be used in improving optical propagation through the atmosphere, for example by mitigating optical attenuation and scintillation effects, thereby enhancing effective system availability as well as link budget considerations, as evidenced through experimental studies and theoretical calculations between uspl and fog related atmospheric events..
Attochron, Llc


Monitoring an optical signal to noise ratio, signal transmission apparatus and receiver


Embodiments of the present disclosure provide a monitoring apparatus for an optical signal to noise ratio, a signal transmission apparatus and a receiver. The monitoring apparatus includes a selecting unit configured to select a time domain, and/or frequency domain range for calculating noise power of received signals according to a location of a pilot signal in the received signals in a time domain and/or frequency domain, and a calculating unit configured to calculate the noise power of the received signals according to the received signals in the selected range of the time domain and/or frequency domain, and calculate an optical signal to noise ratio of the received signals according to the noise power.
Fujitsu Limited


Enhanced transmission and reception of remote digital diagnostic information of optical transceivers


Methods and apparatuses for optical communications are provided. By way of example, an optical transceiver includes a processing device coupled to a memory, an optical subassembly, and a programmable device.
Oe Solutions America, Inc.


Actively monitored optical fiber panel


An optical fiber panel unit includes multiple fiber input ports, each configured to connect to a different one of multiple optical fibers. Each fiber input port includes a connector port configured to connect to a respective fiber panel optical path, an optical tap and a photo-detector.
Verizon Patent And Licensing Inc.


Smart remote node optical network unit and operation method thereof


Disclosed is a smart remote node optical network node including an optical layer monitoring unit configured to transmit a monitoring light signal to an optical network unit through an optical switch and receive a monitoring light signal reflected from the optical network unit, an infra recognition unit configured to recognize whether an optical connector is connected to an output port of a remote node and an identification number of the optical connector when the optical connector is connected thereto, and a control unit connected to the optical layer monitoring unit and the infra recognition unit and configured to control recognition and monitoring operations of the remote node according to a remote node application.. .
Electronics And Telecommunications Research Institute


Apparatus and otdr transmitter noise compensation


An optical device with integrated optical time domain reflectometer (otdr) functionality and method for the same is provided. The optical device includes a transmitter and an optical time domain reflectometer (otdr) module, the transmitter is configured to generate an optical time domain reflectometer (otdr)-modulated optical supervisory channel (osc) signal by applying an otdr modulation to an optical supervisory channel (osc) signal using an otdr signal and to transmit the otdr-modulated osc signal.
Huawei Technologies Co., Ltd.


Method and testing optical fiber in optical distribution network


Provided is an apparatus for testing an optical fiber in an optical distribution network, the apparatus being capable of synthetically testing an optical fiber by using a plurality of optical pulse signals. The apparatus includes a transmitter configured to transmit a first and a second optical pulse signal to an optical fiber connected to optical network units (onu) through a coupler, and a receiver configured to receive, from the coupler, a first received optical pulse signal and a second received optical pulse signal the apparatus includes an analog to digital (a/d) converter configured to generate first and second received optical signals according to received intensities of the first and second received optical pulse signals to convert the first and second received optical signals into first and second digital received optical data, and a processor configured to process the first and second digital received optical data to generate a scale domain response to perform image visualization and optical fiber state analysis to monitor the optical fiber..
Electronics And Telecommunications Research Institute


Method and device for realizing optical channel data unit shared protection ring


A method and a device for realizing an optical channel data unit (odu) shared protection ring (spring) are disclosed. The method includes: first, receive an oduj, wherein the oduj carries an odui; then, perform de-multiplexing processing to obtain the odui from the oduj; next, multiplex the odui to an optical channel data unit k (oduk); meanwhile, keep monitoring the oduk; and when the monitoring result that is obtained through monitoring the oduk indicates that a failure has occurred, perform a switching on the odui; wherein i, j, k are integers equal to or larger than 0, k is larger than j, j is larger than i, and i, j, k are used to indicate different rates of respective optical channel data unit (odu) signals..
Huawei Technologies Co., Ltd.


Safety-enhanced laser array


When an unsafe port with a loss of signal is detected, a transceiver may enable one laser in a group of lasers associated with the unsafe port and may disable the remaining lasers. Then, the transceiver may instruct a transmitter associated with the one laser to transmit an optical signal on the unsafe port using a reduced transmit power that is less than a threshold value associated with the class 1 conditions and at a different time than enabled lasers in other groups of lasers.
Oracle International Corporation


Enclosure for cable distribution assembly


An enclosure for breaking out a trunk cable includes: a base having a generally flat surface adapted for mounting to a mounting surface; a shell having a front and two side walls extending from opposite sides of the front and two opposed end walls, the side walls of the shell mounted to the base to form a cavity; a plurality of connectors mounted to each of the side walls; and a trunk cable routed into the cavity through one of the end walls, the trunk cable comprising a plurality of power conductors and/or a plurality of optical fibers. The power conductors and the optical fibers are connected with respective ones of the plurality of connectors..
Commscope Technologies Llc


Optical semiconductor device and manufacturing the same


A semiconductor light-emitting device according to one embodiment includes a substrate, a first light reflection structure provided in contact with the substrate, a buried layer surrounding the first light reflection structure, an optical semiconductor structure including an active layer, provided above the first light reflection structure, a second light reflection structure provided above the optical semiconductor structure, and a pair of electrodes which supply current to the optical semiconductor structure. The surface of the first light reflection structure and the surface of the buried layer are included in the same plane..
Kabushiki Kaisha Toshiba


Vertical cavity surface emmiting laser


A vcsel according to the invention, configured to emit a light having about 850 nm wavelength, comprises an active region which comprises one or more inxga1-xas quantum wells; two or more gaas1-ypy barriers bonding to the one or more quantum wells; and x ranges from 0.05 to 0.1, and y ranges from 0.2 to 0.29. The vcsel has increased optical confinement and high transmission speed, good reliability characteristics, high-temperature performance, and long life time..
Sae Magnetics (h.k.) Ltd.


Optical transmitter emitting light with narrowed linewidth


An optical transmitter that narrows the linewidth of the output light is disclosed. The optical transmitter includes a wavelength tunable laser diode (ld) type of the csg-dr ld integrated with a semiconductor optical amplifier (soa) driven by the constant magnitude mode.
Sumitomo Electric Industries, Ltd.


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Packaging structure and packaging tunable laser device, and tunable laser device


The present disclosure provides a packaging structure and a method of packaging an tunable laser device, and an tunable laser device. The packaging structure of the tunable laser device may include a to tube base and a to tube cap, wherein a first thermal sink is disposed on the to tube base, a semiconductor laser chip is disposed on a vertical side of the first thermal sink, an aspheric lens is disposed on the to tube cap, and the semiconductor laser chip is disposed on a central axis of the aspheric lens; and wherein the vertical side of the first thermal sink is a side of the first thermal sink perpendicular to the to tube base.
Hisense International Co., Ltd.


Mopa with externally triggered passively q-switched laser


In a master oscillator plus power amplifier (mopa) system, the oscillator is a passively q-switched laser. The laser is triggered into passively q-switched operation by operating an optical switch to resonantly couple back into the laser amplified stimulated emission generated by the amplifier..
Coherent Gmbh


Optical pulse source apparatus with nonlinear fibre and operable to reduce the optical pulse frequency of optical output pulses


The invention can include an optical pulse source apparatus that includes the nonlinear generation of wavelengths, wherein the optical pulse source can comprise an oscillator for producing optical pulses, the optical pulses having a first wavelength; an optical fiber amplifier for amplifying optical pulses having the first wavelength; a nonlinear optical fiber receiving amplified optical pulses having the first wavelength to nonlinearly produce optical pulses that include wavelengths that are different than the first wavelength; and wherein the optical pulse source is configured so as to be operable to reduce the optical pulse frequency of the nonlinearly produced optical pulses.. .
Fianium Ltd.


Optical amplifier module


An optical amplifier module is configured as a multi-stage free-space optics arrangement, including at least an input stage and an output stage. The actual amplification is provided by a separate fiber-based component coupled to the module.
Ii-vi Incorporated


Compact optical fiber amplifier


A fiber-based optical amplifier is assembled in a compact configuration by utilizing a flexible substrate to support the amplifying fiber as flat coils that are “spun” onto the substrate. The supporting structure for the amplifying fiber is configured to define the minimal acceptable bend radius for the fiber, as well as the maximum diameter that fits within the overall dimensions of the amplifier package.
Ii-vi Incorporated


Method and device for generating short optical pulses


Compressing the chirped optical pulses outside the laser cavity using a dispersive element in order to generate the short optical pulses.. .

Conducting and semi-conducting alignment materials


The invention relates to conducting and semi-conducting photoreactive compounds, represented by the general formula (i), to the use of these compounds for the preparation of oriented and/or orientation layers; and to their use in the construction of unstructured and structured optical, electro optical or optoelectronic elements and multi-layer systems.. .
Rolic Ag


Optoelectronic component, optoelectronic arrangement, producing an optical element, and producing an optoelectronic component


An optoelectronic component includes an optoelectronic semiconductor chip having a radiation-emitting face; and an optical element arranged over the radiation-emitting face, wherein the optical element includes a material in which light-scattering particles are embedded, and a concentration of the embedded light-scattering particles has a gradient forming an angle not equal to 90° with the radiation emission face.. .
Osram Opto Semiconductors Gmbh


Semiconductor photoreceiving device


According to one embodiment, a semiconductor photoreceiving device includes a substrate, a first structural layer provided on the substrate, in which light enters from the substrate side and in which a refractive index changes periodically, a semiconductor layer provided on the first structural layer and including an optical absorption layer, a reflective layer provided on the semiconductor layer, and a pair of electrodes configured to apply voltage to the optical absorption layer.. .
Kabushiki Kaisha Toshiba


Solar energy collection systems utilizing holographic optical elements useful for building integrated photovoltaics


Described herein are transparent solar energy collection systems that comprise at least one holographic optical element, a transparent waveguide concentrator, and at least one solar energy conversion device.. .
Nitto Denko Corporation


Optical assemblies including dry adhesive layers and associated methods


An optical assembly includes an image sensor, a lens module disposed over the image sensor in a first direction, a transparent glue layer, and a transparent dry adhesive layer formed of a different material than the transparent glue layer. Each of the transparent glue layer and the transparent dry adhesive layer are disposed between the image sensor and the lens module in the first direction.
Omnivision Technologies, Inc.


Optical programming of electronic devices on a wafer


A system for programming integrated circuit (ic) dies formed on a wafer includes an optical transmitter that outputs a digital test program as an optical signal. At least one optical sensor (e.g., photodiode) is formed with the ic dies on the wafer.
Freescale Semiconductor, Inc.


Systems and methods for reducing pulsed laser beam profile non-uniformities for laser annealing


Systems and methods for reducing pulsed laser beam profile non-uniformities for laser annealing are disclosed. The methods include directing an initial pulsed laser beam along an optical axis, and imparting to each light pulse a time-varying angular deflection relative to the optical axis.
Ultratech, Inc.


Charged particle beam apparatus, image forming method using a charged particle beam apparatus, and image processing apparatus


To provide a charged particle beam apparatus capable of obtaining an image with high contrast and high visibility, the apparatus has: a charged particle optical system; a detection part to detect secondary charged particles generated from the sample; an image formation part to receive a detection signal from the detection part and form an image of the sample; an image processing part to process the image formed with the image formation part; and a display part to display the result of processing with the image processing part, wherein the image formation part has a pulse-count signal processing part to generate cumulative histogram information on a pulse signal component in the detection signal, set a threshold value for pulse signal detection using information on the generated cumulative histogram, and output a detection signal having a value higher than the set threshold value as a pulse signal.. .
Hitachi High-technologies Corporation


Polyester for profile extrusion and/or pipe extrusion


The compositions are used in the production of cable sheathing or optical waveguide sheathing via blowmolding, profile extrusion, and/or tube extrusion.. .

Optical recording medium


There is provided an optical recording medium including: three reproduction layers, wherein reflectance r1, r2, and r3 of the three reproduction layers on a side of a surface irradiated with reproduction light is equal to or greater than 5%, and wherein any absolute value of a difference delta r between two selected from the reflectance r1, r2, and r3 is equal to or less than 7%.. .
Sony Corporation


Apparatus and storing and retrieving optical sensor calibration data


An optical storage device for storing data includes at least one optical waveguide for receiving an optical interrogation signal and providing a response to the optical interrogation signal and a plurality of optical elements arranged relative to the at least one optical waveguide. The plurality of optical elements are responsive to the optical interrogation signal provided through the at least one waveguide to return a prescribed data value through the at least one optical waveguide.
Parker-hannifin Corporation


Optical device including optical modulation device, and driving method thereof


An optical device includes a display panel displaying an image and an optical modulation device that includes a first plate and second plate disposed to face each other and a liquid crystal layer disposed between the first plate and the second plate and including a plurality of liquid crystal molecules, wherein the first plate includes a plurality of lower electrodes extending in a first direction and arranged in a second direction crossing the first direction and the second plate include and an upper electrode. When the display panel displays a first image during a first subframe, the optical modulation device applies a first driving signal to the plurality of lower electrodes, and when the display panel displays a second image during a second subframe following the first subframe, the optical modulation device applies a second driving signal different from the first driving signal to the plurality of lower electrodes..
Samsung Display Co., Ltd.


Electro-optical device and electronic apparatus


An electro-optical device includes a display portion, a data line driving circuit, a first retention capacitor that retains the potential of the data line, a driving control circuit, and a display control circuit that supplies brightness information to the driving control circuit and also supplies an image signal to the data line driving circuit. The data line driving circuit includes a potential control line to which a potential control signal is supplied, a third retention capacitor one end of which is connected with the data line and the other one of which is supplied with a potential based on the image signal, and a first transistor that is electrically connected between the other end of the third retention capacitor and the potential control line.
Seiko Epson Corporation


Online traffic volume monitoring system and method based on phase-sensitive optical time domain reflectometry


An online traffic volume monitoring system based on a phase-sensitive optical time domain reflectometry and its monitoring method are related to a field of intelligent transportation and an application of distributed fiber sensing. A vehicle moving temporal-spatial response graph is generated by accumulating differentiated optical time-domain reflectometry tracks at different moments in one unit monitoring period for traffic volume statistics, and then converted into a vehicle moving trajectory image through binarization and image pre-processing.
University Of Electronic Science And Technology Of China


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Guidance system


Provided are: a plurality of unit control apparatuses; and a plurality of unit light emitting apparatuses controlled by the unit control apparatuses, wherein at normal times, light emitting elements of a plurality of light emitting apparatuses of the plurality of unit light emitting apparatuses are continuously lit at an illuminance of 100%, and at guidance, the illuminance of the light emitting elements of the plurality of light emitting apparatuses of the plurality of unit display apparatuses is attenuated to 30%, and then the illuminance of the light emitting elements of the plurality of light emitting apparatuses of the plurality of unit display apparatuses is sequentially controlled to 100% based on count values stored in an emergency exit number count value storage unit to generate an optical flow toward a guidance direction.. .

Image processing apparatus, image pickup apparatus, image processing method, image processing program, and storage medium


An image processing apparatus 100 includes a data storage unit 101 configured to store information on first optical characteristic data, a data generation unit 102 configured to generate second optical characteristic data based on the first optical characteristic data related to a shot image and defocus characteristic data, and a restoration unit 104 configured to restore the shot image based on the second optical characteristic data.. .
Canon Kabushiki Kaisha


Enabling secure transactions with an underpowered device


In a system and method for enabling secure monetary transactions with an unpowered and/or underpowered user device, embodiments include a payment device including a battery, a display, and a processor. The processor is configured to generate an optical machine-readable representation of data, the data including an identifier for a payment account, and display the optical machine-readable representation of data on the display in response to a charge level of the battery..
Ebay Inc.


Check data lift for online accounts


Embodiments for extracting data for online account includes systems that receive at least one check images, apply one or more optical character recognition processes to at least a portion of the at least one check image, and convert image based data to text based data. The embodiments further identify check data in the text based data, identify online data from the check data, incorporate at least a portion of the online data into a portion of an online account, and provide the online account portion to a customer..
Bank Of America Corporation


Check data lift for online accounts


Embodiments for extracting data for online account includes systems that receive at least one check images, apply one or more optical character recognition processes to at least a portion of the at least one check image, and convert image based data to text based data. The embodiments further identify check data in the text based data, identify online data from the check data, incorporate at least a portion of the online data into a portion of an online account, and provide the online account portion to a customer..
Bank Of America Corporation


Confidence estimation for opitcal flow


A confidence map for optical flow gradients is constructed calculating a set of gradients for each pixel of an image, filtering said gradients and extracting confidence values from said gradients using a plurality of decision tree classifiers. A confidence map is then generated from said confidence values..
Texas Instruments Incorporated


Coding device and position-determining device and position-determining method


In order to increase safety, a computer-implemented method is proposed for determining the position of a lift cabin in a lift shaft with the aid of a coding device, wherein a section of the code band and/or of the bearing device is recorded with an optical detection device as a pixel image consisting of pixels and the instant of the recording being measured and assigned to the pixel image, wherein the position is determinable analytically from position markers of the code band by way of an algorithm and wherein at least one checking method which uses, inter alia, a calculated extrapolated position is carried out.. .
Cedes Ag


Remote authentication of identity


A method of identifying a person by remotely processed data by an identifying party. A person pre-registers a biometric signature with a security service provider.

Methodology for pattern density optimization


The present disclosure relates to a method of improving pattern density with a low opc (optical proximity correction) cycle time, and an associated apparatus. In some embodiments, the method is performed by performing an initial data preparation process on an ic design including a graphical representation of a layout used to fabricate an integrated chip.
Taiwan Semiconductor Manufacturing Co., Ltd.


Methods and systems for analyzing cable or pipe


Disclosed are methods, systems and computer readable storage media which facilitate the design of cables and pipes, including umbilicals, flexible pipes, optical cables, power cables, composite pipes, bundled pipes and combinations thereof. In one aspect, a computer implemented method includes, in response to input from a user in a plug-in interface in a graphical user interface within a computer-assisted design program, in a processor, executing instructions for receiving design information from a computer-assisted design program as well as receiving loading and deformation information from a global analysis software package for a cable or pipe having multiple components.
Chevron U.s.a. Inc.


Optical head-mounted display for controlling an implantable medical device and communication accessory attachable thereto


An optical head-mounted display (ohmd) for use as external controller for an implantable medical device (imd) is disclosed which includes an imd communication accessory with a usb connector coupleable to a usb port on the ohmd. The accessory includes a housing with a communication antenna and telemetry transceiver circuitry to allow for direct communications with the imd.
Boston Scientific Neuromodulation Corporation


Touchless user interfaces for electronic devices


An electronic device including a touchless user interface which comprises an optical sensing arrangement having a field of view extending in a divergent manner therefrom and a processing system arranged to process signals from said optical sensor arising from a first movement executed by a user's hand in said field of view and detects the first movement. The touchless user interface further comprises: at least one ultrasonic transmitter transmitting ultrasonic interrogation signals; and at least one ultrasonic receiver receiving reflections of said ultrasonic interrogation signals from said user's hand.
Elliptic Laboratories As


Sensor panel and manufacturing sensor panel


Provided is a sensor panel including a transparent electrode layer formed on a transparent substrate, a wiring layer formed in the vicinity of the transparent electrode layer, on the substrate, an opaque decorative layer facing the wiring layer, and a cover layer located between the substrate and the decorative layer. The cover layer is configured such that an operation region corresponding to at least the transparent electrode layer is transparent, and a shielding layer configured to shield an optical path leading to the wiring layer is provided between the wiring layer and the decorative layer..
Alps Electric Co., Ltd.


Touch sensor with multilayer stack having improved flexural strength


A multilayer stack for use in a touch sensor is provided, including a base substrate covering viewing and border areas of the multilayer stack and an optically opaque border layer that defines a step proximate to and extending along a perimeter of the viewing area. The multilayer stack also includes an optically transparent adhesive layer disposed on the base substrate and the border layer and covering the viewing and border areas of the multilayer stack.
3m Innovative Properties Company


Depth mapping with a head mounted display using stereo cameras and structured light


A tracking system generates a structured light pattern in a local area. The system includes an array of lasers that generate light.
Oculus Vr, Llc


Holographic high power illumination distribution system


An illumination distribution system for distributing high power illumination to a set of projectors. The system includes a display element, such as a spatial light modulator (slm), receiving light from a laser.
Disney Enterprises, Inc.


Image forming apparatus and image forming method


An image forming apparatus includes: a photoconductor drum; an optical scanning device that drives a light source to scan a surface of the photoconductor drum and form a latent image on the surface; a developing device that develops the latent image; and a density detector to detect density variation of an image in a rotation direction of the photoconductor drum, the image being developed by the developing device. The optical scanning device includes a processing device that is capable of correcting a driving signal for driving the light source on a basis of an output signal of the density detector to adjust at least either one of a correction period and a correction strength of correction data for the driving signal for a rotation period of the photoconductor drum..

Image forming apparatus capable of adjusting sensitivity of optical sensor and adjusting sensitivity of optical sensor


An image forming apparatus includes: an optical sensor which includes a light-emitting part and a light-receiving part opposed to the light-emitting part and is configured to detect an amount of waste toner accumulated in a waste toner container, the waste toner being produced with formation of an image and then accommodated in the waste toner container; a detecting section configured to detect a change in an output of the light-receiving part; a shielding member interposed between the light-emitting part and the light-receiving part and configured to create, between the light-emitting part and the light-receiving part, a light-transmitting environment equivalent to that when the waste toner container is filled with the waste toner; and an adjusting section configured to adjust a light intensity of the light-emitting part when the shielding member is interposed between the light-emitting part and the light-receiving part.. .
Kyocera Document Solutions Inc.


Optical scanning device and image forming apparatus


An optical scanning device (11) in the image forming apparatus (1) of the present invention includes a deflector (35, 37) deflecting a laser light scanning an image carrier (13) outputted from a light source (32y, 32c, 32m, 32k); a first reflection mirror part (43y, 43c, 43m, 43k) adjusting scanning curve of the laser light deflected by the deflector (35, 37); and a second reflection mirror part (44y, 44c, 44m, 44k) arranged at a downstream side from the first reflection mirror part (43y, 43c, 43m, 43k) in an optical path of the laser light to adjust scanning inclination of the laser light.. .
Kyocera Document Solutions Inc.


Optical writing control device, image forming apparatus, and optical writing control method


An optical writing control device controls emission or lighting of a light source onto a photoconductor surface in a latent image forming process and a discharge process, by either setting a light emission time longer in the discharge process or setting a resolution in a sub-scanning direction lower in the discharge process, compared to the latent image forming process.. .

Inspection apparatus and methods, substrates having metrology targets, lithographic system and device manufacturing method


Disclosed is an inspection apparatus for use in lithography. It comprises a support for a substrate carrying a plurality of metrology targets; an optical system for illuminating the targets under predetermined illumination conditions and for detecting predetermined portions of radiation diffracted by the targets under the illumination conditions; a processor arranged to calculate from said detected portions of diffracted radiation a measurement of asymmetry for a specific target; and a controller for causing the optical system and processor to measure asymmetry in at least two of said targets which have different known components of positional offset between structures and smaller sub-structures within a layer on the substrate and calculate from the results of said asymmetry measurements a measurement of a performance parameter of the lithographic process for structures of said smaller size.
Asml Netherlands B.v.


Method for forming pattern


According to an embodiment, a method for forming a pattern includes selectively forming a first film on a first region on a substrate. The first region is included in an optical interference area of a first light and a second light on the substrate.
Kabushiki Kaisha Toshiba


Radiation source and lithography


A radiation source suitable for providing radiation to a lithographic apparatus generates radiation from a plasma (12) generated from a fuel (31) within an enclosure comprising a gas. The plasma generates primary fuel debris collected as a fuel layer on a debris-receiving surface ((33a), (33b)).
Asml Netherlands B.v.


Lithographic method and apparatus


A method of correcting an optical image formed by an optical system, the method including obtaining a map indicative of a polarization dependent property of the optical system across a pupil plane of the optical system for each spatial position in an image plane of the optical system, combining the map indicative of the polarization dependent property of the optical system with a radiation map of the intensity and polarization of an input radiation beam to form an image map, and using the image map to correct an optical image formed by directing the input radiation beam through the optical system.. .
Asml Netherlands B.v.


Light source apparatus and projection display apparatus


A light source apparatus of the disclosure includes a solid state light source; a substrate that has a phosphor region where a phosphor is formed that emits fluorescent light produced by exciting light supplied from the solid state light source and a color filter region where a color filter is formed inside the phosphor region; and an optical means that leads light from the phosphor region so as to be discharged to a first direction (i.e., a direction in which the exciting light enters) and so as to enter the color filter region from a second direction that is opposite to the first direction.. .
Panasonic Intellectual Property Management Co., Ltd.


Projector and controlling projector


A projector according to an aspect of the invention includes a discharge lamp having a light emitting tube and configured to emit light, a light modulation device configured to modulate the light emitted from the discharge lamp in accordance with an image signal, a projection optical system configured to project the light modulated by the light modulation device, a first detection section configured to detect ultraviolet light out of the light emitted from the discharge lamp, and a control section configured to determine a deterioration state of the light emitting tube based on a light intensity of the ultraviolet light detected by the first detection section.. .
Seiko Epson Corporation


Converter lens device and photographing system including the same


The present disclosure is directed to a converter lens device that includes a first mount to which a master lens device is capable of being attached, a second mount to which a camera body is capable of being attached and a converter lens having a negative refractive power, wherein, an optical system comprising the converter lens device and the master lens device has a focal length longer than a focal length of an optical system of the master lens device, the converter lens comprises sequentially from an object side, a first lens unit of a positive refractive power, a second lens unit of a negative refractive power, and a third lens unit.. .
Olympus Corporation


Blade drive device and optical apparatus


To provide a blade drive device capable of suppressing operation failures due to the leakage flux. The blade drive device 1 attached to a camera module including a lens and a lens drive device 60 having plural permanent magnets 61 arranged with gaps around an optical axis p of the lens in an annular manner so as to overlap the camera module in an axial direction of the optical axis p, which includes a lower plate 2 having an opening 4 formed around the optical axis p, blades 20 regulating the opening 4 and respective actuators 10a, 10b arranged in the lower plate 2 and driving the blades 20.
Seiko Precision Inc.


Adjustable speed fast laser scanning system and two-photon microscope associated


The present invention concerns a laser scanning system (18) comprising: —a first acousto-optical deflector (30) deflecting a beam in a first direction (x) to obtain a first deflected beam and comprising a first acousto-optical crystal on which is applied an acoustic wave whose frequency varies over time according to a first law of command, and —a second acousto-optical deflector (32) deflected the first deflected beam in a second direction (y), defining an angle comprised between 85° and 95° with the first direction, and comprising a second acousto-optical crystal on which is applied an acoustic wave whose frequency varies over time according to a second law of command, characterized in that the first law of command and the second law of command are chosen so that the average speed of the laser scanning system (18) is superior to 10 radians per second.. .
Ecole Normale Superieure


Random access stimulated emission depletion (sted) microscopy


optical scanning system, comprising an optical system for guiding a first and a second light beam, and deflector devices for deflecting first and second light beams in a directionally variable manner. The deflector devices comprise at least one acousto-optic deflector, and the optical system is arranged in such a way that the first and second light beams are counter-propagating through the acousto-optic deflector, which is controllable for deflecting the first and second light beams simultaneously or in pulse sequence.
Baylor College Of Medicine


Integrated light source and light output control method


An integrated light source includes an optical circuit (3) including at least an interference optical switch and a light emitting unit (2) outputting optical signals having the same phase to multiple input ends, and an interference optical switch (21), for example, includes an optical coupler (33ab) coupling or splitting and outputting optical signals input through multiple optical waveguides to a first and a second output ports, a first optical waveguide (32a) having one end inputting an optical signal and the other end connected to the optical coupler (33ab), a second optical waveguide (32b) having one end inputting an optical signal, the other end connected to the optical coupler (33ab), and the same optical path length as the first optical waveguide (32a), and a phase shifter (31a) disposed on the first optical waveguide (32a) and switching phase differences of an optical signal transmitted through the first optical waveguide (32a) according to a control signal (s21).. .
Nec Corporation


Optical phased array using stacked parallel plate wave guides and fabricating arrays of stacked parallel plate waveguides


A method for fabricating crystalline dielectric material on top of metal layers to produce an apparatus for non-mechanical steering of an input laser beam is provided. The apparatus may include a plurality of stacked parallel dielectric waveguides, each waveguide of which is fabricated by separating layers of dielectric material from a donor wafer and bonding the separated layers of dielectric material to a receiving wafer.
Bae Systems Information And Electronic Systems Integration Inc.


Method and high resolution reflective image display


A reflective image display comprising of a rigid and thermally stable layer is proposed where light is reflected in a semi-specular or semi-retro-reflective manner or absorbed by electrophoretically mobile particles. The layer is comprised of a plurality of cavities such as in the shape of hemispheres in hourglass-like shapes where the lateral displacement of the optical path of light entering and exiting the display is less than the width of a pixel leading to a high resolution reflective image display..
Clearink Displays, Inc.


Optical conversion member, backlight unit, and liquid crystal display device


One embodiment of the present invention relates to an optical conversion member including an optical conversion layer containing a quantum dot emitting fluorescent light which is excited by incident excitation light, in which the optical conversion layer contains a quantum dot and polyorganosilsesquioxane, and an adjacent inorganic layer is directly in contact with the optical conversion layer.. .
Fujifilm Corporation


Display device, optical mask, and manufacturing display device using the same


Exemplary embodiments relate to a display device, an optical mask, and a method for manufacturing a display device using the same. The display device including: a first substrate and a second substrate facing the first substrate; a thin film transistor disposed on the first substrate; a first insulating layer disposed on the thin film transistor; and a light blocking member disposed on the first insulating layer.
Samsung Display Co., Ltd.


Liquid crystal panel and liquid crystal display


The liquid crystal panel includes a liquid crystal cell, a first polarizer on one side of the liquid crystal cell, a second polarizer on the other side of the liquid crystal cell, a first optically anisotropic element disposed between the liquid crystal cell and the first polarizer, and a second optically anisotropic element disposed between the first optically anisotropic element and the liquid crystal cell. Absorption axes of the first and the second polarizers are perpendicular to each other.
Nitto Denko Corporation


Optical modulation device and driving method thereof


A method of driving an optical modulation device includes applying a voltage to an upper electrode; forming a forward phase slope by applying a first driving signal to a lower electrode in a first area; forming a backward phase slope by applying a second driving signal different from the first driving signal to another lower electrode in a second area; forming an area without phase retardation by applying a third driving signal to two lower electrodes in a third area between the first area and the second area; and forming a flat phase slope by applying a fourth driving signal different from the first to third driving signals one lower electrode in a fourth area between the first area and the second area.. .
Samsung Display Co., Ltd.


Method for determining at least one optical design parameter for a progressive ophthalmic lens


A method for determining at least one optical conception parameter for a progressive ophthalmic lens intended to equip a frame of a wearer, depending on the visual behavior of the latter. The method comprises the following steps: a) collecting a plurality of behavioral measurements relating to a plurality of gaze directions and/or positions of the wearer during a visual task; b) statistically processing said plurality of behavioral measurements in order to determine a zone of use of the area of an eyeglass fitted in said frame, said zone of use being representative of a statistical spatial distribution of said plurality of behavioral measurements; and c) determining at least one optical conception parameter for said progressive ophthalmic lens depending on a spatial extent and/or position of the zone of use..
Essilor International (compagine Generale D'optique_


Methods and ophthalmic devices including cycloidally oriented liquid crystal layers


This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner.
Johnson & Johnson Vision Care, Inc.


Lens moving apparatus, camera module and optical appliance including the same


Embodiments provide a lens moving apparatus including a bobbin in which a lens is mounted, a first coil and a magnet configured to electromagnetically interact with each other so as to move the bobbin, a housing configured to accommodate the bobbin therein, an elastic member including an inner frame coupled to the bobbin, an outer frame coupled to the housing, and a frame connection portion configured to connect the inner frame and the outer frame to each other, and a support member connected to the elastic member and configured to support the housing, and the outer frame includes a first coupling portion coupled to the housing, a second coupling portion coupled to the support member, the second coupling portion being spaced apart from the first coupling portion, and a single connection portion configured to connect the first coupling portion and the second coupling portion to each other.. .
Lg Innotek Co., Ltd.


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Projector and screen


This projector includes a laser light generation portion, a projection portion scanning laser light, and a projection screen. The projection screen includes a lens member including a plurality of lens portions splitting the laser light and a diffusion member arranged to be opposed to the lens member, having an incident surface and a diffusion portion.
Funai Electric Co., Ltd.


Laser beam combining device


A laser beam combining device includes: a plurality of shaping optical units which emit circular laser beams which are different from each other in a change amount of an outer diameter per unit travel distance, wherein the plurality of shaping optical units are placed in such a manner that the circular laser beams emitted from the shaping optical units have a concentric shape.. .
Kawasaki Jukogyo Kabushiki Kaisha


Beam shaper system for laser diode array


Proposed is a beam shaper for beams emitted from at least one laser-diode bar and consisting of a fast-axis collimator composed of a common cylindrical lens with an aspherical profile, an array of spherical/aspherical telescope units formed from a pair of microlenses, where each individual telescope unit is shifted in accordance with a predetermined law to a certain distance relative to a neighboring individual telescope unit, an array of cylindrical lenses shifted relative to each other in accordance with another predetermined law, and a system of collimation lenses that collimate the beams of the predetermined spatial pattern into a two-dimensional pattern having a less discrete and more uniform distribution of light intensity and a shape more convenient for subsequent coupling, e.g., for focusing into the end face of an optical fiber of a light transmission system.. .

Illuminating magnifier apparatus


An illuminating magnifier has an annular housing, with an underside, an inner edge defining an opening and an outer edge. A magnifying lens fills the opening, which lens has an optical axis.

Wearable virtual reality and augmented reality display apparatus


A wearable augmented reality (ar) or virtual reality (vr) display apparatus includes an optical waveguide; an optical free-form surface; and a microdisplay; wherein optical free-form surface is optically coupled to the waveguide through an inclined optical path.. .
Beijing Institute Of Technology


Video display device and head-mounted display


A video display device includes: a display element displaying images by modulating light from an illumination optical system; and an eyepiece optical system guiding image light from the display element into an optical pupil. The illumination optical system includes: a light source including light emission points arranged substantially linearly; a diffuser plate diffusing illumination light from the light source in a first direction, in which the light emission points are arranged, but not in a second direction perpendicular to the first direction; and an optical element bending the illumination light such that the optical pupil and the light source are substantially conjugate.
Konica Minolta, Inc.


Display comprising an optical waveguide for displaying an image


A display apparatus for use in displaying an image to a viewer (4), comprising an optical waveguide (8) arranged to receive image-bearing light (2) into the optical waveguide to guide the received image-bearing light therealong to an output part (5) of the optical waveguide for output therefrom. A combiner (70) is arranged adjacent to the output part of the optical waveguide for reflecting image-bearing light output by the waveguide in a direction which passes back through the optical waveguide and for allowing light (6) from an external scene to pass through the combiner in said direction through the optical waveguide to combine with the reflected image-bearing light so that the image-bearing light overlays light from the external scene for viewing by a viewer..
Bae Systems Plc


Optical deflector including mirror with extended reinforcement rib coupled to protruded portions of torsion bar


An optical deflector includes a mirror with a reflective layer on its front-side surface, a first support frame adapted to support the mirror, at least one torsion bar coupled between the first support frame and the mirror; and a reinforcement rib provided on a rear-side surface of the mirror. The torsion bar has a pair of protruded portions arranged symmetrically with respect to the torsion bar in the vicinity of a coupling portion between the torsion bar and the mirror.
Stanley Electric Co., Ltd.


Systems and methods for image magnification using relative movement between an image sensor and a lens assembly


The present specification describes a novel system for dynamically modifying the magnification power of optical devices used in high performance and critical applications such as medical procedures. The present specification describes an optical imaging system having a magnification control system connected to a sensor device for enabling movement of sensor device with respect to a lens assembly of the imaging system, wherein distance between the sensor device and the lens assembly is altered to enable different levels of magnification capability..
Endochoice, Inc.


Microscope system


A microscope system including an optical microscope for observing a specimen, an image-acquisition portion that performs image acquisition of an image of the specimen obtained by the optical microscope, a monitor that displays the image of the specimen acquired by the image-acquisition portion, a region-of-interest setting portion that sets, in the image of the specimen, a region-of-interest that is being observed by the observer on the monitor, and an exposure control portion that controls the exposure level of the image-acquisition portion based on the brightness of the region-of-interest set in the image of the specimen by the region-of-interest setting portion.. .
Olympus Corporation


Optical system for fast three-dimensional imaging


The present invention discloses an optical system for detecting a sample include a light source, one beam shaper, at least one lens, an image detecting module wherein the light source, one beam shaper, at least one lens are sequentially configured along a light path, wherein one beam shaper moves the focus along the light path back and forth so the light focused on the sample by the light source through one lens is focused onto different depths inside the sample, wherein the light source and the sample are placed at both sides of at least one lens. The image detection module is configured on a light path, and the sample is placed between at least one lens and the image detection module to capture images of different depths inside the sample..
National Tsing Hua University


Fluorescence observation unit and fluorescence observation apparatus


A fluorescence observation unit includes a scanner that scans ultrashort pulsed laser light, a pupil projection lens that focuses the scanned ultrashort pulsed laser light, an image-forming lens that converts the focused ultrashort pulsed laser light to substantially collimated light and causes the ultrashort pulsed laser light to be incident on the objective lens, and a dichroic mirror that splits off, from the optic path of the ultrashort pulsed laser light, fluorescence generated in a sample due to irradiation with the ultrashort pulsed laser light and collected by the objective lens. The image-forming lens includes a first optical system having positive refractive power, and a second optical system having negative refractive power and disposed at a position closer to the scanner than the first optical system is.
Olympus Corporation


Wide-angle projection optical system


A wide-angle projection optical system includes, between an object side and an image side, a first optical system including a first lens group having an aperture stop and a second lens group disposed behind the aperture stop, and a second optical system including a mangin mirror and a glass plate disposed between the second lens group and the mangin mirror. The first and second lens groups have positive power.
Delta Electronics, Inc.


Zoom lens system and camera system


A zoom lens system according to the present disclosure includes, in order from an object side to an image plane side, a first lens group having positive optical power; a second lens group having negative optical power; a third lens group having positive optical power; and a subsequent lens group including a fourth lens group, a fifth lens group, and a sixth lens group. The first lens group comprises, in order from the object side, a first lens element having negative optical power; a second lens element having positive optical power; a third lens element having positive optical power; and a fourth lens element having positive optical power.
Panasonic Intellectual Property Management Co., Ltd.


Snychronous camera lens module photographing all directions with single lens


The present invention relates to a synchronous camera lens module photographing in all directions with a single lens, and more particularly, to a synchronous camera lens module which replaces only a lens module of a conventional monitoring camera by providing a synchronous camera lens module using a single optical lens capable of performing wide-angle photographing to photograph in all directions with the single lens which is high economically and in efficiency and can minimize a blind zone.. .

Imaging lens and imaging apparatus


An imaging lens is constituted by, in order from the object side to the image side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The second lens group has at least one positive lens and at least one negative lens.
Fujifilm Corporation


Optical image capturing system


The invention discloses a five-piece optical lens for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens which can have positive refractive power, and an object-side surface thereof can be convex; a second lens with refractive power; a third lens with refractive power; a fourth lens with refractive power, wherein both surfaces of each of the aforementioned lenses can be aspheric; and a fifth lens which can have negative refractive power, wherein an image-side surface thereof can be concave, and both surfaces thereof are aspheric; at least one surface of the fifth lens has an inflection point thereon.
Ability Opto-electronics Technology Co., Ltd.


Optical image capturing system


The invention discloses a five-piece optical lens for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens which can have positive refractive power, and an object-side surface thereof can be convex; a second lens with refractive power; a third lens with refractive power; a fourth lens with refractive power, wherein both surfaces of each of the aforementioned lenses can be aspheric; and a fifth lens which can have negative refractive power, wherein an image-side surface thereof can be concave, and both surfaces thereof are aspheric; at least one surface of the fifth lens has an inflection point thereon.
Ability Opto-electronics Technology Co., Ltd.


Optical lens system, imaging device and electronic device


An optical lens system comprises, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, and a fourth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region.
Largan Precision Co., Ltd.


Imaging lens and electronic apparatus including the same


An imaging lens includes first to fourth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant lens parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance..
Genius Electronic Optical Co., Ltd.


Adjustable mounting arrangement for an object to be positioned precisely relative to a base


An adjustable mounting arrangement to position an object of an optical reflecting telescope relative to a base includes at least two support structures connected to the base and to the object. Each of the at least two support structures has two four-link beams arranged nonparallel to each other and a cradle having two connecting links.
Mbda Deutschland Gmbh


Lens driving device, camera module and optical apparatus


An exemplary embodiment of the present invention relates to a lens driving device, comprising: a base including a support part upwardly protruded; a movable unit spaced from the base and movably disposed at an upper side of the base; and a damper contacted with the support part and the movable unit.. .
Lg Innotek Co., Ltd.


Spring clips for mounting optics structures on an associated circuit board, and assemblies including the spring clips


Clips are provided to secure optic element systems to a printed circuit board. Associated mounting systems may, for example, eliminate direct adhesion of an optic element to an associated illumination source (e.g., led).
Smart Vision Lights


Multi-degree-of-freedom support mechanism, lens barrel, and optical device


A multi-degree-of-freedom support mechanism includes a first member having a protruding part with a spherical surface, and a second member having a pair of planes opposite to each other across the protruding part. One of the first member and the second member is able to make relative movement with respect to the other with sliding movement of the spherical surface on the pair of planes.
Panasonic Intellectual Property Management Co., Ltd.


High installation performance blown optical fibre unit, manufacturing method and apparatus


An optical fiber unit for air-blown installations includes a number of optical conductors, a first layer of resin material, a second layer of resin material radially outer to the first layer of resin material and a sheath of a thermoplastic material, wherein the second layer of resin material has a secant modulus higher than a secant modulus of the first layer of resin material and wherein the sheath of thermoplastic material is over and in close contact with the second layer of resin material.. .
Prysmian S.p.a.


Optical fiber cable with adhesion control layer


An optical communication cable and related systems and methods are provided. The cable includes an adhesion control material between a reinforcement sheet and a cable jacket.
Corning Optical Communications Llc


Flexible structured optical modules


optical modules as used in various types of communication systems are formed to include a flexible substrate to support various optical, electronic, and opto-electronic module components in a manner that can accommodate various packaging constraints. The flexible substrate is formed of a polyimide film is known to exhibit excellent electrical isolation properties, even though the films are generally relatively thin (on the order of 10-100 μms, in most cases).
Ii-vi Incorporated


Optical communication apparatus and assembling the same


An optical communication apparatus comprises a laser, a laser driver chip, a photodetector, an amplifier chip, an assembling plate and at least two i/o interfaces. The laser, the laser driver chip, the photodetector and the amplifier chip are disposed on the assembling plate.
National Center For Advanced Packaging Co., Ltd.


Optical bench subassembly having integrated photonic device


An optical bench subassembly including an integrated photonic device. Optical alignment of the photonic device with the optical bench can be performed outside of an optoelectronic package assembly before attaching thereto.
Nanoprecision Products, Inc.


Opto-electric hybrid board and production method therefor


An opto-electric hybrid board according to the present invention includes a substrate including an insulation layer and a metal reinforcement layer. An electric circuit part is provided on the front surface of the substrate, and an optical waveguide part is provided on the back surface thereof.
Nitto Denko Corporation


Active-optical ic-package socket


A socket for an ic package includes a base with which the ic package is capable of being mated and unmated and an optical element integrated with the base. When the ic package is mated with the base, based on electrical signals received from the ic package, the optical element generates light signals or modifies light signals; and/or based on detected light signals, the socket generates electrical signals that are transmitted to the ic package..
Samtec, Inc.


Plug part and plug-in connection


Plug part (1) for establishing an optical and/or electrical plug-in connection (2) with a mating plug part (3) by plugging together the plug part (1) with the mating plug part (3) in at least one plugging-together direction (4), the plug part (1) having a plug part housing (5) and at least one optical and/or electrical contact (6) and an elastic opening prestressing element (7), acting in a direction parallel to the plugging-together direction (4), and an opening element (8) for opening a flap (9) on the mating plug part (3), the opening element (8) being mounted displaceably in relation to the plug part housing (5) in directions parallel to the plugging-together direction (4) in or on the plug part housing (5), and being prestressed in one of these directions parallel to the plugging-together direction (4) by the opening prestressing element (7), wherein the opening element (8) is formed as a one-piece body and has a first abutting face (10) for the opening prestressing element (7) and a second abutting face (11) for the opening of the flap (9) of the mating plug part (3).. .
Neutrik Ag


Optical interconnection component


The present invention relates to an optical interconnection component enabling implementation of optical fiber connection with higher accuracy than by the conventional technologies. The optical interconnection component is configured to maintain arrangement of end faces of a plurality of rotationally-aligned mcfs, so as to reduce connection loss to another component.
Sumitomo Electric Industries, Ltd.


Attachable disposable fiber optic cleaning pad


One or more embodiments of the disclosure relates to a fiber optic cleaning pad for cleaning the end-face of an optical fiber. The cleaning pad includes a base for support and a fiber optic cleaning area for cleaning the end-face.
Afl Telecommunications Llc


Axial preload for demountable connectors


The present invention provides a spring bias that is particularly suited for use to preload a low profile ferrule of an optical connector. In accordance with the present invention, an axial preload is applied to a connector ferrule by a spring structure provided external of the connector.
Nanoprecision Products, Inc.


Global link connector system


A connector mating system that can enable the coupling and decoupling of electrical or optical communications channels, while in a deep, sub-oceanic, sea-floor environments, during which time the contacting interfaces of the said channels remain fully protected from the destructive effects of the said environment. The system features a wet-mate connector (wmc) that provides a means for electrical, optical and hybrid interconnection within an extremely hostile environments..
Deeplinc, Inc.


Method to connect an optical fiber having a solid core with an additional optical fiber, optical fiber having a solid core with joining device and use of a 3d printer


The present invention relates to a method for connecting a solid core optical fiber (2) with another optical fiber (20), wherein the solid core optical fiber (2) comprises a joining device (10), which is created on one axial end of the solid core optical fiber (2) using a 3d printer and wherein the other optical fiber (20) is incorporated in the joining device (10) via an axial end of the other optical fiber (20), which is thus connected with the solid core optical fiber (2). In addition, the invention relates to a solid core optical fiber (2) with a joining device (10) created by a 3d-printer, and the relevant use of a 3d printer..
Universität Stuttgart


Mechanical fiber switch


A switch for selectively coupling light from two input fibers to a selected two of plurality of output optical fibers. The switch was designed to handle standard fiber optical connectors which have been polished and meet the specifications for the optical performance.
Nu Visions International, Inc.


Optical transmission apparatus and transmission method therefor


An optical transmission apparatus for transmitting pulsed light includes a dispersion medium having a negative dispersion parameter in a wavelength band of incident pulsed light, a first fiber which receives the pulsed light that has passed through the dispersion medium and has a negative dispersion parameter in a wavelength band of the incident pulsed light, and a second fiber which receives the pulsed light that has passed through the first fiber and has a positive dispersion parameter in a wavelength band of the incident pulsed light. The dispersion medium and the second fiber have positive dispersion slopes.
Canon Kabushiki Kaisha


Optical transmitter and transmitting an optical signal


An optical or free space isolator, and optical or optoelectronic transmitter and methods of transmitting an optical signal and making the transmitter are disclosed. The optical/free space isolator includes a first polarizer, configured to polarize light at a first polarization angle and block light at a second polarization angle; a faraday rotator, configured to rotate the light polarized by the first polarizer by a predetermined number of degrees; and a half waveplate in the optical/light path, having a fixed or predetermined orientation angle.
Source Photonics (chengdu) Co., Ltd.


Optical fiber cables and modules with modal disperson compensation


An optical fiber cable for bi-directional communication of optical signals is disclosed. The optical fiber cable has a primary multimode optical fiber with an alpha value of a and is concatenated to a compensating fiber with an alpha value α, wherein 1.2≦(α′−α)≦−0.1.
Corning Optical Communications Llc


Optical fiber


An optical fiber is capable of radiating light radially in a wide range. The optical fiber includes an elongate primary coated optical fiber adapted to transmit light radiated for medical treatment.
Terumo Kabushiki Kaisha


Semiconductor device and manufacturing


A semiconductor device includes a substrate, a trench in the substrate, the trench having an inclined sidewall, a reflective layer over the inclined sidewall, a grating structure over the substrate, and a waveguide in the trench. The waveguide is configured to guide optical signals between the grating structure and the reflective layer..
Taiwan Semiconductor Manufacturing Company, Ltd.


Few-mode optical fiber


A few-mode optical fiber is provided. The few-mode optical fiber includes an elliptical core capable of supporting the propagation and transmission of an optical signal with x number of lp modes at a wavelength of 1550 nm, wherein x is an integer greater than 1 and less than 20, and a cladding surrounding the core.
Corning Incorporated


Polarization maintaining optical fiber


An optical fiber, comprising: (i) a core, (ii) a cladding surrounding the core, (iii) at least one stress member adjacent the fiber core and situated within the cladding, said stress member comprising silica doped with f.. .
Corning Incorporated


Backlight module and display device


The present invention discloses a backlight module, which comprises a plastic frame, a backplane, a light guide and an optical film, the backplane comprises a mutually perpendicular vertical plate and horizontal plate, the plastic frame and the light guide are provided inside the backplane, the optical film is close to the upper surface of the plastic frame and the light guide. The present invention further provides a display device, which reduces the size of the plastic frame through pasting the optical film on the upper surface of the plastic frame and the light guide, achieving the ultra-narrow frame design..
Shenzhen China Star Optoelectronics Technology Co., Ltd.


Backlight module and liquid crystal display device


The invention discloses a backlight module. The backlight module includes a light guide plate having an incident side; a mounting bracket including a vertical portion and a horizontal portion, wherein the vertical portion is opposite to the incident side, a gap exists between the vertical portion and the incident side, the vertical portion has a plurality of mounting holes, and the mounting holes pass through the vertical portion and the horizontal portion, thereby forming a plurality of grooves on the horizontal portion; a plurality of optical fibers, wherein the optical fibers are respectively disposed in the grooves and the mounting holes, emitting end faces of the optical fibers are attached to the incident side, and the optical fibers are used for guiding the ambient light into the light guide plate; and a plurality of slide assemblies, wherein the slide assemblies are respectively put around the optical fibers and fixed on the optical fibers, and the sliding assemblies are respectively disposed in the grooves and able to move with expansion or contraction of the light guide plate.
Shenzhen China Star Optoelectronics Technology Co., Ltd.


Liquid crystal display device and curved backlight assembly thereof


A curved backlight assembly includes a light source, a curved light guide plate (lgp), a heat-dissipating plate, a supporting plate and a connecting member. The light source is abutted with the curved lgp.
Shenzhen China Star Optoelectonics Technology Co., Ltd.


Wavelength plate and optical device


Where Δn1 represents birefringence of first birefringent layer, Δn2 represents birefringence of second birefringent layer, t1 represents a film thickness of first birefringent layer, t2 represents a film thickness of second birefringent layer, θ1 represents angle between optical axis of first birefringent layer and incident linearly polarized light, θ2 represents angle between optical axis of second birefringent layer and incident linearly polarized light, and λ represents a predetermined value in a range of wavelengths of incident light.. .

Retardation film, and optical compensation layer, optical compensation polarizing plate, liquid crystal display device and organic el display device each using said retardation film


The present invention achieves a phase difference film that is excellent in wavelength dispersion property, in-plane retardation, and film thickness, by using a polymeric material (i) which is composed of at least one type of cellulose derivative having a specific alkoxyl group substitution degree d1 and a specific 2-naphthoyl group substitution degree d2 and (ii) which has a specific total 2-naphthoyl group substitution degree d3.. .
Kaneka Corporation


Optical conversion member, polarizing plate, liquid crystal panel, backlight unit, and liquid crystal display device


One embodiment of the present invention relates to an optical conversion member including an optical conversion layer containing a quantum dot emitting fluorescent light which is excited by incident excitation light, and a polyvinyl acetal resin layer.. .
Fujifilm Corporation


Optical filter and optical apparatus


An optical filter includes a first multilayer film structure including first and second optical layers which are constituted by materials different from each other, and a second multilayer film structure including third and fourth optical layers which are constituted by materials different from each other, the first multilayer film structure includes a first unit multilayer film with a width w1 including the first optical layer and the second optical layer, and a second unit multilayer film with a width w2 including the first optical layer and the second optical layer laminated alternately, the first and second unit multilayer films are shifted from each other in a lamination direction of the first and second optical layers, and constitute a unit structure in which the first and second unit multilayer films are arranged adjacent to each other in an arrangement direction orthogonal to the lamination direction.. .
Canon Kabushiki Kaisha


Optical grating coupling structure


The invention relates to a grating coupler comprising: —an optical substrate arranged to transfer a light beam, and—a diffraction grating arranged on, or imbedded in, the surface of said optical substrate, said diffraction grating comprising diffraction grating elements comprising each a coating arranged asymmetrically on said diffraction grating elements. The grating coupler is further arranged to satisfy the condition: (n1×sin(iαi)+η2)/λ×p>1, wherein n1 is the refractive index of the optical medium to the incident light side of the diffraction grating elements, n2 is the refractive index of the optical medium to the diffracted light side of the diffraction grating elements, lal the absolute value of the incident angle of the light beam incident on the grating coupler λ is the vacuum wavelength of the diffracted light, and p is the period of the diffraction grating elements..
Csem Centre Suisse D'electronique Et De Microtechn Ique Sa - Recherche Et Developement


Crazing resistant coating and method thereof


An anti-reflective coating system configured to resist crazing resulting from applied compressive forces, and an optical article employing the anti-reflective coating system; and methods of forming the same.. .
Vision Ease, Lp


Display device and optical film included therein


A display device includes a display panel, an optical film arranged on an upper portion of the display panel and including first and second intaglio pattern portions having different depths from each other, a bonding member configured to contact at least a part of the display panel and a surface of the first intaglio pattern portion and an air layer configured to fill between a surface of the second intaglio pattern portion and the display panel.. .
Samsung Display Co., Ltd.


Fiber optic magnetic field sensing system based on lorentz force downhole applications


A method and apparatus for magnetic sensing is described. The apparatus includes a strain-sensing fiber coupled to a conducting strip.
Halliburton Energy Services Inc.


Double-sided organic photodetector on flexible substrate


The present invention relates to a detection module (22) for the detection of ionizing radiation emitted by a radiation source (20) comprising a scintillator element (24) for emitting scintillation photons in response to incident ionizing radiation, a first photosensitive element (32a) optically coupled to the scintillator element (24) for capturing scintillation photons (30) and a flexible substrate (34) for supporting the first photosensitive element (32a). The present invention also relates to an imaging device (10) that comprises such a detection module (22)..
Koninklijke Philips N.v.


Optical spread spectrum detection and ranging


Example implementations may relate to an obstacle detection system. In particular, an example device may include a light emitter, a line-image sensor, and a controller that are mounted on a rotatable component.
Horizon Hobby, Llc


Electro-optical distance measurement method and equivalent distance meter


Some embodiments of the invention may include an electro-optical distance measurement method having at least one emission of a light signal, in particular of laser light, from at least one light source onto a target object, detection of a fraction of the light signal returning from the target object using a detector and a signal processing electronics system connected downstream from the detector, and/or determination of a distance to the target object. In some embodiments, the emitted light signal comprises in this case a sequence of sequential elements of, in each case at least one light pulse and one light signal train.
Leica Geosystems Ag


Optical distance measurement device


optical range finders are configured to transmit optical bursts toward a target and detect a corresponding received burst. Dc offset in the received burst due to square law detection can be offset based on a difference between high pass and low pass filtered portions of the received burst.
Garmin Switzerland Gmbh


Wide field of view multibeam optical apparatus


A multi-beam lidar optical system, that in one example includes a plurality of single mode optical fibers configured to transmit and receive light beams, and a plurality of lenses configured to collimate and focus the light beams between the plurality of single mode optical fibers and an entrance pupil of the system, wherein the system is configured to transmit and receive the light beams over an angular field of view of at least 5°.. .
Raytheon Canada Limited


Distance measurement instrument with scanning function


A measurement instrument is disclosed. The measurement instrument comprises a front lens assembly, a distance measurement module and a deflection module.
Trimble Ab


Object detecting device, sensing device, and mobile object device


An object detecting device includes: a light source which includes a plurality of light emitting units arranged in a sub-scanning direction; a deflector which deflects light from the light source; and an optical detector which includes a plurality of light receiving units arranged in the sub-scanning direction so as to correspond to the plurality of light emitting units, and receives light deflected by the deflector and reflected by an object.. .

Rotating optical range finder


A rotating optical range finder includes a stationary base, a rotating base, an optical sensor, a transmitting circuit, a receiving circuit, a first induction coil, and a second induction coil. The rotating base s disposed on the stationary base.
Arima Lasers Corp.


Sample analysis systems and methods


Sample analysis systems and methods are provided. In one embodiment, the method may be achieved by applying a substance to a surface of a substrate having a first binding agent immobilized thereon; removing unbound material from at least a portion of the substrate having the substance applied thereon; applying a second binding agent to the surface of the substrate, wherein the second binding agent is optically labeled or unlabeled; removing unbound material from at least a portion of the substrate having the second binding agent applied thereon; responsive to detecting the optically labeled second binding agent bound to the substance, identifying the analyte present in the sample; and responsive to not detecting the optically labeled second binding agent bound to the substance, determining that the analyte is absent in the sample; wherein the applying the substance or second binding agent to the surface of the substrate steps are concurrent with the respective removing unbound material from at least a portion of the substrate steps.
Bio-rad Laboratories, Inc,


Skin-print fluorescence analysis method and apparatus


A method of analysing a skin-print provided on a first surface of an optically transparent substrate. The method comprises the steps of exposing the skin-print on the first surface of the optically transparent substrate to one or more reagents selected to bind with one or more metabolites present in the skin-print; transmitting electromagnetic radiation onto the skin-print through the optically transparent substrate using a radiation source to thereby produce an optical signal of said one or more reagents and/or said one or more metabolites; and detecting an optical image of the optical signal through the optically transparent substrate using a sensor.
Intelligent Fingerprinting Limited


Distributed acoustic sensing for passive ranging optical computing device having detector with non-planar semiconductor structure


An optical computing device including a detector having a non-planar semiconductor structure is provided. The detector may include one or more structures having structure characteristics that may be optimized to respond to and weight predetermined wavelengths of light radiated from a sample that are related to characteristics of the sample.
Halliburton Energy Services, Inc.


Method of measuring acoustic energy impinging upon a cable


A method of measuring acoustic energy impinging upon a cable includes, interrogating at least one optical fiber of the cable with electromagnetic energy, the at least one optical fiber is nonconcentrically surrounded by and strain locked to a sheath of the cable, monitoring electromagnetic energy returned in the at least one optical fiber, and determining acoustic energy impinging on the cable.. .
Baker Hughes Incorporated


Optical distance sensor


An optical distance sensor includes a foreign matter detector that utilizes a coaxial optical system for distance measurement as well as utilizing a first pulse and a second pulse respectively caused as an internal reflection of a front screen and as a reflection from a detection object for a detection of foreign matter deposit on the front screen based on a difference of light amounts between the first and second pulse. The foreign matter detector determines that the optical distance sensor is in a normal state, in an obstacle cover state or in a foreign matter deposit state respectively corresponding to three states of the front screen (i.e., (i) having no foreign matter deposit, (ii) having a covering obstacle, or (iii) having a foreign matter deposit)..
Denso Wave Incorporated


Imaging apparatus and imaging method


According to one embodiment, an imaging apparatus includes a light source, a stage on which an object is placed and which is scanned in a predetermined direction, an illumination optical system supplying light from the light source to the object, an imaging optical system forming an image of the object, and a detector detecting the image of the object. The illumination optical system includes a plurality of mirrors located at a predetermined, position, and the plurality of mirrors have different inclinations and form an illumination region on a surface of the object, the illumination region being composed of a plurality of illumination portions in which no gap is formed when being viewed from the predetermined direction..
Kabushiki Kaisha Toshiba


Method to enhance sensitivity to surface normal optical functions of anisotropic films using attenuated total reflection


Methodology for determining optical functions of thin films with enhanced sensitivity to “p” polarized electromagnetic radiation reflected from both interfaces of an absorbing film.. .
J.a. Woollam Co., Inc.


Measuring arrangement for measuring optical properties of a reflective optical element, in particular for microlithography


A measuring arrangement for measuring optical properties of a reflective optical element, in particular for microlithography, with an euv light source (5), a detector (20) configured to detect euv radiation reflected at the reflective optical element (10), and an imaging system (30, 40, 50, 60, 70, 80, 90), which images object points on the reflective optical element onto respective image points on the detector, wherein the imaging system is configured to reflect the euv radiation, a first optical component (31, 41, 51, 61, 71, 81, 91), and at least one second optical component (32, 42, 52, 62, 72, 82, 92). Both at the first optical component and at the second optical component, reflection angles with respect to respective surface normals that respectively occur during reflection of the euv radiation are at least 70°..
Carl Zeiss Smt Gmbh


Liquid presence/turbidity sensor using single optical channel


A multisensor employs an optical system that is modified by the index of refraction of fluid passing between a light emitter and light detector to successfully distinguish between air and water (of any turbidity) and between water of different turbidity values. The optical system may employ lenses contacting the fluid to change their focal length and thus to focus and defocus light on the light detector depending on an index of refraction of the fluid..
Illinois Tool Works Inc.


Improved designs for integrated computational elements


Disclosed are improved integrated computational elements for use in optical computing devices. One integrated computational element includes an optical substrate, first and second pluralities of optical thin film layers alternatingly deposited on the optical substrate to form a thin film stack, wherein each optical thin film layer of the first plurality exhibits a first refractive index and each optical thin film layer of the second plurality exhibits a second refractive index different than the first refractive index, and at least one additional optical thin film layer arranged in or on the thin film stack and in optical communication with at least one of the optical thin film layers of the first and second pluralities, the at least one additional optical thin film layer exhibiting a third refractive index that is different than the first and second refractive indices..
Halliburton Energy Services, Inc.


Multi-channel aerosol scattering absorption measuring instrument


The present invention discloses a multi-channel aerosol scattering absorption measuring instrument, comprising a light path device, a detection device and a gas path device. The light path device supplies three different wavelengths of laser entering the detection device in sequence; the detection device is provided with photoelectric detectors at multiple angles for measurement, so as to reduce the measurement error of aerosol scattering coefficient; the gas path device comprises a sample loading unit, a calibration unit and a sample discharging unit; and a light source from the light path device and a gas flow from the gas path device enter the photoacoustic cavity of the detection device respectively and are detected by a control unit.
Nanjing University


Quantum cascading laser system for analyzing pathogenic microorganisms


A quantum cascading laser system for analyzing pathogenic microorganisms, where the quantum cascading laser system comprises a tunable laser unit, a beam splitter, lens, sample chamber, optical detector, data acquisition system, reference detector, and lock-in amplifier, where a computer controls the system and conducts the data analysis from the data produced from the quantum cascading laser system against a set of data derived from known pathogenic mircoorganisms to identify the pathogenic organisms in the original sample.. .

Optical identifying wood species of a raw wooden log


An optical apparatus and a method for identifying wood species of a raw wooden log involve directing light onto a representative portion of a peripheral surface of the wooden log, sensing light reflected on the illuminated representative log portion to generate reflection intensity image data including color image data, subdividing the reflection intensity image data into a plurality of image data regions each containing a preset number of image pixels, analyzing the image data regions to generate associated texture data, analyzing the color and texture data associated with each image data region to assign thereto a probable one of a plurality of species indications, and selecting a majority species indication for the inspected wooden log.. .
Centre De Recherche Industrielle Du Québec






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