|| List of recent Optical-related patents
|Clamping apparatus for carrying a disk in an optical disk drive|
A clamping apparatus for being disposed in an optical disk drive and carrying a disk is provided. The clamping apparatus includes a base, a spindle assembly, a pawl and a buffer element.
|Expense input utilities, systems, and methods|
Systems and methods for expense input utilities include providing an image of an expense-related document for display with an expense form. A selection of a portion of the image and a selection of an input field of the expense form may be received.
|Hybrid fiber optic and power over ethernet|
Connectors for connecting between devices using optical communication where at least one of the devices is configured to receive power from the connector by one or more power over ethernet (poe) contacts in the plug. In some variations, described herein are hybrid fiber optic power over ethernet (poe) cables that provide power and optically transmit information between and/or to ethernet devices.
|Server-layer shared link risk group analysis to identify potential client-layer network connectivity loss|
In one embodiment, a particular device within a client-layer network maintains client-layer topology information including server-layer shared risk link group (srlg) information of server-layer devices and links in a server-layer network associated with client-layer links and client-layer nodes in the client-layer network. A determination is made to discover if there is an alternative client-layer path to an established client-layer path between a first packet switching device and a second packet switching device if all server-layer resources of any particular server-layer srlg of a plurality of total server-layer srlgs associated with the established client-layer path become unavailable.
|Hybrid focus-exposure matrix|
A method for controlling semiconductor production through use of a hybrid focus exposure matrix (fem) model includes taking measurements of a set of structures formed onto a substrate. The method further includes using a fem model to determine focus and exposure conditions used to form the structure the model was created through use of measurements of structures formed on a substrate under varying focus and exposure conditions, the measurements being taken using both an optical measurement tool and a scanning electron microscope..
|Adaptive rf signal filter using acousto-optic spectrum analyzer and re-writable xdm mask|
A coherent wideband acousto-optic rf spectrum analyzer for processing an input rf signal, having a cw laser providing a first laser beam, a bragg cell used in a deflection mode with the laser beam incident thereon and receiving the input rf signal, and in response thereto producing multiple diffracted modulated light beams, a fourier transform lens with the modulated light beams incident thereon and in response thereto producing optical signal beams producing a fourier transform image in an image plane spaced apart from the fourier transform lens, and a photosensitive, optically re-writable medium positioned in the image plane with the optical signal beams incident thereon, the medium having an optical distribution pattern to function as a mask to attenuate a selected portion of the rf spectrum of the optical signal beams and produce an attenuated optical beam.. .
|Power line carrier control module|
A power line carrier control module includes a microcontroller, an optical coupling isolation unit, a digital input unit, a buffer unit, a digital output unit, an analog-to-digital conversion (adc) unit, an analog input unit, a digital-to-analog conversion (dac) unit, an analog output unit, a first power line carrier module and a second power line carrier module. The power line carrier control module can be applied to power line carrier controllers in fields of street light control or industrial control to achieve effects of cross-phase and cross-meter operations in ac 12v to 440v power loops..
|Method and apparatus for process window modeling|
A photolithographic modeling process is disclosed. Optical and non-optical parts of a model of the photolithographic process are calibrated.
|Refocusable intraocular lens with flexible aspherical surface|
An intraocular lens (iol) having a posterior prolate aspheric surface structured to bend or flex in response to force applied to such surface due to flexing of ciliary body muscle. The flexible and bendable haptic portions of the iol, integrated with the central optical portion along its perimeter, as sized to have the distal sides of the haptic portions installed in the capsular membrane of a natural lens of an eye or in a space between the root of the iris and ciliary muscle.
|Accommodating fluidic intraocular lens with flexible interior membrane|
An accommodating (re-focusable) intraocular lens (iol), a body of which includes two optical portions sequentially disposed, in optical contact with one another, along an optical axis and separated by interior surface the curvature of which is changing in response to pressure applied to posterior surface of iol. The two optical portions may be formed with fluids having different refractive indices and housed in flexible cells that share an interior wall having such interior surface.
|Producing cut surfaces in a transparent material by means of optical radiation|
A method for producing a cut surface in a transparent material using optical radiation. A laser device separates the material using optical radiation and includes an optical unit focussing the radiation along an optical axis into an image field defining an image-field size.
|Methods and apparatus for improved post-operative ocular optical performance|
Techniques, systems are described for performing laser eye surgery. In one aspect, a method for improving an optical function of an eye includes preparing the eye for surgery by determining an optical characteristic of the eye.
|Dimensional compensator for use with a patient interface|
An apparatus and method are provided for performing ocular laser surgery using a patient interface having a posterior contact surface that may include surface irregularities that were generated during manufacturing of the patient interface. A beam delivery system having a focusing lens, scanning subsystem and adaptive optic (e.g.
|Fractional handpiece for dermatological treatments|
A medical device includes a housing that is moved along a surface of a target tissue in a longitudinal direction. One or more supply lines conduct air and water to the housing.
|Optical sensing device|
The present disclosure provides an optical sensing device that comprises a plurality of optical light guide portions. Each optical light guide portion has a sensing region for sensing a property.
|Imaging devices and methods of use thereof|
The invention generally relates to imaging devices and methods of use thereof. Aspects of the invention provide an imaging device that includes a core wire and more than 32 optical fibers coupled to the core wire..
|Enzyme function modification method and enzyme variant thereof|
An object of the present invention is to provide a method for converting the coenzyme dependency of enzymes of the medium-chain dehydrogenase/reductase (mdr) family. A further object of the present invention is to provide enzyme variants of the mdr family whose coenzyme dependency is converted by the conversion method and a method for enzymatically producing optically active alcohols using the enzymes.
|Alkaline activation for immobilization of dna taggants|
The invention provides methods for stably binding and immobilizing deoxyribonucleic acid onto objects and substrates. The method includes exposing the deoxyribonucleic acid to alkaline conditions, and contacting the deoxyribonucleic acid to the object or substrate.
|Method for producing optical member and use of uv-curable resin composition therefor|
The present invention relates to a method for producing an optical member wherein an optical substrate having a light-blocking part on the surface is bonded to an optical substrate for bonding. The method for producing an optical member uses a uv-curable resin composition and comprises specific (process 1) through (process 3).
|Non-particulate organic porous material having optical resolution capability and method for manufacturing same|
A non-particulate organic porous material with optical resolution capability, the non-particulate organic porous material having a continuous pore structure, which comprises macropores and mesopores, the macropores being interconnected forming mesopores with a radius of 0.01-100 μm in the interconnected parts, and optically active groups uniformly introduced therein possesses high physical stability, can be used under wide separating conditions, and has a large capacity for separating optically active substances (enantiometers).. .
|Surface chemistry and deposition techniques|
Surface chemistries for the visualization of labeled single molecules (analytes) with improved signal-to-noise properties are provided. To be observed, analyte molecules are bound to surface attachment features that are spaced apart on the surface such that when the analytes are labeled adjacent analytes are optically resolvable from each other.
|Silanol condensation catalyst, heat-curable silicone resin composition for sealing photosemiconductors and sealed photosemiconductor using same|
A silanol condensation catalyst including at least the zirconium metal salt expressed by formula (i) below (wherein n is an integer from 1 to 3; each r1 is a hydrocarbon group having from 1 to 16 carbons; and each r2 is a hydrocarbon group having from 1 to 18 carbons. A heat-curable silicone resin composition for sealing optical semiconductors includes 100 parts by mass of a polysiloxane containing two or more silanol groups in the molecule; from 0.1 to 2,000 parts by mass of a silane compound containing two or more alkoxy groups that are bonded to a silicon atom in the molecule; and a zirconium metal salt expressed by formula (i).
|Optical glass, optical element, and method for manufacturing optical glass|
0 cat. %≦(total amount of yb3++lu3+)≦10 cat.
|Lens holding device|
A lens holding device comprising a lens carrier holding the lens; a base part supporting said carrier so that said carrier may make relative movement against said base part, a spring having a conductivity, resiliently connecting said base part and said lens carrier; and a connection terminal provided at said base part; wherein a housing groove is formed to said base part, said housing groove extending approximately perpendicular to an optical axis direction of said lens and having an opening at a side face of said base part, said side face extending in a direction approximately parallel to said optical axis direction, said connection terminal having a first end electrically connected with said spring, a second end opposite said first end, and a connection part resiliently housed in said housing groove connecting said first end and said second end by extending in a direction perpendicular to said optical axis direction.. .
|Broad spectrum, endpoint detection window chemical mechanical polishing pad and polishing method|
A chemical mechanical polishing pad is provided, comprising: a polishing layer having a polishing surface; and, a broad spectrum, endpoint detection window block having a thickness along an axis perpendicular to a plane of the polishing surface; wherein the broad spectrum, endpoint detection window block, comprises an olefin copolymer; wherein the olefin copolymer, comprises, as initial components: ethylene, a branched or straight chain c3-30 α-olefin; a silane; and, optionally, a polyolefin; wherein the broad spectrum, endpoint detection window block exhibits a uniform chemical composition across its thickness; wherein the broad spectrum, endpoint detection window block exhibits a spectrum loss ≦60%; and, wherein the polishing surface is adapted for polishing a substrate selected from a magnetic substrate, an optical substrate and a semiconductor substrate.. .
|Chemical mechanical polishing pad with broad spectrum, endpoint detection window and method of polishing therewith|
A chemical mechanical polishing pad is provided, comprising: a polishing layer having a polishing surface; and, a broad spectrum, endpoint detection window block having a thickness along an axis perpendicular to a plane of the polishing surface; wherein the broad spectrum, endpoint detection window block, comprises a cyclic olefin addition polymer; wherein the broad spectrum, endpoint detection window block exhibits a uniform chemical composition across its thickness; wherein the broad spectrum, endpoint detection window block exhibits a spectrum loss ≦40%; and, wherein the polishing surface is adapted for polishing a substrate selected from a magnetic substrate, an optical substrate and a semiconductor substrate.. .
|Systems and methods for providing polarization compensated multi-spectral laser repair of liquid crystal display panels|
A system is disclosed for repairing liquid crystal display panels that include a polarizing film. The system includes a laser repair optical system, a measurement optical system, and a processor.
|Dsa grapho-epitaxy process with etch stop material|
A method for defining a template for directed self-assembly (dsa) materials includes forming an etch stop layer on a neutral material, forming a mask layer on the etch stop layer and forming an anti-reflection coating (arc) on the mask layer. A resist layer is patterned on the arc using optical lithography to form a template pattern.
|Semiconductor device pn junction fabrication using optical processing of amorphous semiconductor material|
Systems and methods for semiconductor device pn junction fabrication are provided. In one embodiment, a method for fabricating an electrical device having a p-n junction comprises: depositing a layer of amorphous semiconductor material onto a crystalline semiconductor base, wherein the crystalline semiconductor base comprises a crystalline phase of a same semiconductor as the amorphous layer; and growing the layer of amorphous semiconductor material into a layer of crystalline semiconductor material that is epitaxially matched to the lattice structure of the crystalline semiconductor base by applying an optical energy that penetrates at least the amorphous semiconductor material..
|Chemical sensor, biomolecule detection apparatus, and biomolecule detection method|
[solving means] a chemical sensor according to the present invention includes a substrate, an optical layer, and an intermediate layer. On the substrate, a plurality of photodiodes is arranged in a planar form.
A photobioreactor having an optical waveguide formed at least in part from highly scattering optically transmitting polymer. The optical waveguide has a light distributing part immersed in a container holding photoactive biological material and a light collecting part outside the container..
|R-praziquantel preparation method|
Provided are r-praziquantel preparation methods, which utilize the characteristics of biological enzyme of strong stereoselectivity, site-selectivity, and regioselectivity, of high resolution efficiency, of mild reaction conditions, and of simple operations to catalyze the hydrolysis of a certain enantiomer in a chemically synthesized racemate or a derivative, thus acquiring a mixture of reacted and unreacted optical isomers. R-praziquantel prepared by the method can have a purity of 98% or more..
|Micro-organism threat detection|
A method of tracking and predicting the spread of micro-organisms in an environment relies on the optical detection of the growth of micro-organisms within an analyte containing a growth medium for the micro-organism(s) to be detected. Standardisation of the containers and growth medium for each micro-organism allows rapid detection of the growth pattern of particular organisms and the implementation of a regime of remote self-reporting of results from portable incubator units (1201) in the field which include a memory (1206) to store the results, a gps unit (1204) to provide location information and a transmitter (1203) to send the results to a central plotting organisation allowing rapid tracking and prediction of the spread of environmentally borne organisms..
|Method and use for the detection of a component of interest in biological samples|
The present invention relates to a use of bismuth ferrite crystals to detect a part of interest in biological samples. In order to provide a method which is cost-effective and in which a measurement can be carried out with a high degree of accuracy and which is quantifiable, the invention proposed that the part is marked with one or more bismuth ferrite crystals in a biological sample to be examined and the part marked in this manner is detected in the biological sample using at least one magnetic measuring method and at least on one optical measuring method..
|Calibration device for a thermal cycler|
The present invention relates to a calibration device and method for use in calibrating a thermal cycler having a reaction zone (140), an excitation light source (120) and an optical detector (110), the device comprising one or more ambient condition sensors (210″, 230″), each adapted to sense an ambient condition at a respective position within said reaction zone, one or more emission light generators (220″) adapted to be in optical communication with the optical detector (110), and control circuitry coupled to the one or more ambient condition sensors and to the one or more emission light generators, wherein the control circuitry is configured to alter the emission light generated by the one or more emission light generators based on the ambient condition sensed by the one or more ambient condition sensors.. .
|Analysis device, analysis method, optical element and electronic apparatus for analysis device and analysis method, and method of designing optical element|
An analysis device includes an optical element which includes a metal layer, a light transmitting layer provided on the metal layer to transmit light, and a plurality of metal particles arranged at a first interval p1 in a first direction and arranged at a second interval p2 in a second direction intersecting the first direction on the light transmitting layer, p1<p2, a light source which irradiates incident light incident on the optical element, and a detector which detects light emitted from the optical element. Linearly polarized light in the same direction as the first direction and linearly polarized light in the same direction as the second direction are irradiated onto the optical element..
|Durable glass articles for use as writable erasable marker boards|
The invention relates to glass articles suitable for use as writable erasable marker boards. More particularly, disclosed is a strengthened glass article suitable for use as a writable erasable marker boards, wherein the glass sheet exhibits an ion exchanged glass having a front surface and a back surface and exhibiting a thickness of less than 2.0 mm and having a depth of layer (dol) greater than 20 microns and a surface compressive strength of at least 300 mpa.
A method is provided for improving cognitive performance assessment in a smooth pursuit cognitive performance test by using measurement metrics including a lead/lag metric, a radial inbounding metric, a path dependent velocity metric, a path drift metric, a velocity variability metric, or a variance statistics metric.. .
|Method for optical acquisition of the three-dimensional geometry of objects|
In the case of a method for optical acquisition of the three-dimensional geometry of objects, in particular teeth (4), with a scanner (14), which has a scanning head (13), the three-dimensional geometry that is acquired in a virtual three-dimensional space (1) in the course of scanning is noted. In this case, in the course of scanning, positions of a defined scanner geometry (2) of the scanner (14), in particular of the scanning head (13), are noted relative to the object (4) that is acquired, and, moreover, an area (6) in which the defined scanner geometry (2) is or was located is determined.
|Method and device for the production of a dental prosthesis part|
The method for the production of a dental prosthesis part comprises the provision (11) of a dataset (2) for a dental prosthesis part (6) for use in a cad/cam technique, the provision (12) of reference data (3) for optical properties of different dentin materials and translucent enamel materials for the dental prosthesis part (6) and a relationship (4) between said optical properties, the desired optical properties and the dimensions of the dental prosthesis part (6), the definition (13) of a first setpoint (s1) for the optical properties of a dentin region, the definition (14) of a second setpoint (s2) for the optical properties of an enamel region, the definition (15) of a third setpoint (s3) for a thickness of the enamel region of the dental prosthesis part (6), the selection and provision (16) of a dental prosthesis mold block (5) having a dentin region made from a material.. .
|Method and device for dendrite research and discovery in batteries|
An electrolytic coin cell that has been used to study the growth of lithium dendrites by optical observation is described. The cell makes possible observation of the growth of the dendrites in response to various applied conditions, such as applied electrical signals, chemical effects, and temporal effects in a real coin cell geometry..
|Process for incorporating an ion-conducting polymer into a polymeric article to achieve anti-static behavior|
A process for endowing a polymeric article with a surface layer of an ion-conducting polymer to yield electrical surface resistivity sufficiently low for electrostatic discharge applications is provided. The polymeric article contains one or more immobilized, polymeric components having amine functional groups.
|Method of fabricating polyene containing polarizing film, polyene containing polarizing film fabricated using the same, polarizing plate including the same, and display including the same|
A method of fabricating a polarizing film having excellent optical properties. The method includes fabricating a polyvinyl alcohol film using a coating liquid including an acid catalyst and a polyvinyl alcohol, and dehydrating the polyvinyl alcohol film.
|Crystallization and bleaching of diamond-like carbon and silicon oxynitride thin films|
Optically transparent diamond-like carbon (dlc) thin films are formed using relatively low-temperature deposition conditions followed by a post-deposition bleaching step. The bleaching can include exposure of an as-deposited thin film to uv laser radiation, which reduces the concentration of defects in the film.
|Optical design techniques for providing favorable fabrication characteristics|
Disclosed are methods and techniques for providing favorable fabrication characteristics for optical elements. One method includes providing a desired integrated computational element (ice) design comprising a plurality of layers, each layer having a design thickness, randomizing the design thickness of each layer of the desired ice design to simulate a fabrication error in each layer, thereby generating a plurality of randomized ice designs, calculating a standard error of calibration between each randomized ice design and the desired ice design, correlating the standard error of calibration between a given layer of the desired ice design and the fabrication error of each corresponding layer of each randomized ice design, and ranking the plurality of layers of the desired ice design based on the sensitivity to changes in the standard error of calibration..
|Hop resin-based substance|
A hop resin-based substance has the soft resin at least substantially removed such that the hard resin is present in an enriched state, the hard resin is enriched in terms of the water-insoluble constituents and xanthohumol has been, at least substantially, removed. The substance allows both very balanced bitterness to be adjusted and it does not constitute any optical impairment of beer due to insoluble matter caused by xanthohumol..
|Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring|
Peracid stable fluorescent active compounds in highly acidic, equilibrium peroxycarboxylic acid sanitizing compositions are disclosed as having improved fluorescent stability allowing for monitoring of peroxycarboxylic acid concentration by conductivity and/or optical sensors. Beneficially, the compositions are also low odor and low/no voc dual functioning acid wash and sanitizing compositions..
|Methods and apparatuses for detecting microscope slide coverslips|
A system is capable of detecting substrates and can differentiate between zero, one, or multiple transparent or semi-transparent substrates in a stack. The system can include an optical sensor, an optically anti-reflective element, and a detector.
|Externally modulated optical transmitter with chirp control|
An optical transmitter includes a laser and an external modulator that is used to modulate the optical signal using amplitude modulation (am). The am is accompanied by frequency modulation (fm) of the output signal that is generally detrimental to system performance.
|Optical communication device with planar optical waveguide|
An optical communication device includes a planar optical waveguide, a first substrate, a light emitting element, and a light receiving element. The planar optical waveguide includes a top surface and a light guide portion.
|Optical receiver and transceiver using the same|
An optical receiver is disclosed having a dielectric non-conductive substrate. A ground plane is positioned on the dielectric non-conductive substrate.
|Out of band data transfer over optical connections|
Provided herein are various devices for communicating out-of-band (oob) signals. One device may comprise an in-band controller element, an out-of-band controller element and a modulation circuit operable to modulate a reference clock for the out-of-band signal, while another device may utilize a circuit operable to generate an out-of-band signal based on information carried by an ethernet signal.
|Establishing optical coherence using free-space optical links|
An apparatus and/or method may be used for distributed synchronization of oscillators at non-collocated stations by means of transmitting and receiving optical signals having frequencies related to a desired oscillator frequency.. .
|Optical transmission for binary and duobinary modulation formats|
A transceiver includes a transmitter and a receiver. The transmitter includes a precoder stage, an encoder stage and a first converter stage.
|Optical signal transmission method, apparatus and system|
An optical signal transmission method includes: obtaining a signal identifier of data to be sent; obtaining corresponding optical frequency slot distribution information according to the signal identifier; and determining a corresponding carrier according to the obtained optical frequency slot distribution information, using the determined carrier to carry the data to be sent to generate an optical signal, and sending the generated optical signal. The optical signal transmission method provided in the present invention does not fix the optical frequency slot distribution into a wavelength identifier, the number of optical frequency slots is not limited by the wavelength identifier field length, and the data to be sent can be transmitted in an optical network by being carried on the carrier determined according to multiple optical frequency slots..
|Method and system for wireless transmission of of analog signals between antenna and baseband processor|
A wireless communication method and system utilizing optical transmission technology to transport analog signals directly to/from the antenna, without adc/dac, so that the optical transport facility can be utilized more efficiently and there is no need to adapt the digital data rate to the transport capacity, as the analog transmission is independent of the digits buried in the given spectrum. Complicated operation is moved into a centralized location, so that a cell site (base station) is light and flexible.
|Increasing the capacity of a wdm-pon with wavelength reuse|
A method of processing optical signals in a passive optical network includes receiving a first signal in a first optical spectrum, and receiving a second signal in a second optical spectrum. The second optical spectrum is different from the first optical spectrum.
|Optical network unit|
The present invention provides an apparatus, in particular an optical network unit, which comprises a first part operably coupled to an arm of an optical fiber network, the first part comprises an optical module including an optical-electric interface and/or an electric-optical interface locked on a preset wavelength band, and an interface module, and at least one second part operably coupled to a network entity of a communication network, each comprising a control unit, a signal processing unit and an interface module. One of the control units of the at least one second part is set by a optical line terminal of the optical fiber network as a master control unit configured to tune and control the optical module of the first part.
|Integrated passive optical network (pon) system|
An integrated passive optical network system is disclosed. The system comprises an optical distribution network (odn), a time-division multiplexing (tdm)-optical line terminal (olt), a wavelength-division multiplexing (wdm)-optical line terminal (olt), a plurality of time-division multiplexing (tdm)-optical network units (onus), and at least one wavelength-division multiplexing (wdm)-optical network unit (onu) comprising a first filter.
|Method and apparatus for authentication in passive optical network|
A method and apparatus for authentication in a passive optical network are disclosed. In the disclosure, a first terminal serial number of an onu and a first logic registration code are transmitted from the onu to an olt; if the olt determines that the first terminal serial number does not match a second terminal serial number stored on the olt, the olt judges whether the first logic registration code received from the onu matches a second logic registration code stored on the olt; the olt stores the first terminal serial number received from the onu on the olt if the first logic registration code matches the second logic registration code..
|Sub-rate mapping for lowest-order optical data unit|
One embodiment relates a method for communicating data using an optical transport network. Multiple sub-rate client data signals are received from client sources.
|Energy conservation by means of traffic shaping|
A method executed by an optical line terminal (olt) in a passive optical network (pon). The pon includes a plurality of optical network units (onus) coupled with the olt through an optical fiber, the onus sharing a bandwidth of the optical fiber.
|Reconfigurable optical add/drop multiplexor and optical switching node|
A colorless, directionless roadm includes a pair of contentioned add and drop wavelength-selective optical switches, an input wavelength-selective optical switch having one input port, and an output wavelength-selective optical switch having one output port. Unintended input-to-output port couplings, which appear in the “contentioned” add and drop switches, can be mitigated by the input and output wavelength-selective optical switches carrying the through traffic..
|Distributed optical fiber sound wave detection device|
A distributed optical fiber sound wave detection device is provided with an optical pulse emission unit that causes an optical pulse to be incident into the optical fiber, and a rayleigh scattered light reception unit that receives rayleigh scattered light produced inside the optical fiber. The optical pulse emission unit outputs the optical pulse that is modulated using a code sequence which has a predetermined length and by which the optical pulse is divided into a plurality of cells.
|Optical network switching node in multi-chassis cluster, optical burst synchronization method, and line card chassis|
An embodiment of the present invention provides an optical burst synchronization method. A synchronization method includes: selecting a reference chassis, and transmitting, by an output port corresponding to an ftl in the reference chassis, an optical burst test signal respectively to receive ports corresponding to ors in other line card chassis, where the optical burst test signal carries a transmission timeslot number; and acquiring, by a receive port corresponding to an or in each line card chassis, according to an optical path difference between the receive port corresponding to the or in each line card chassis and the output port corresponding to the ftl in the reference chassis, time of receiving the optical burst test signal, and the transmission timeslot number, a time-phase difference between each line card chassis and the reference chassis, and calibrating a local clock phase according to the time-phase difference..
|Optical cable testing and management|
A method and apparatus for testing an optical cable is provided. In one embodiment, the apparatus may include a receiver for receiving a received pulse train through the optical cable.
|Method, apparatus, and system for disaster recovery of optical communication system|
A method, an optical add-drop multiplexer branching unit, and a system for disaster recovery of an optical communication system are provided. The method for disaster recovery of an optical communication system using an optical add-drop multiplexer unit (oadm) includes: detecting a transmission link fault in an optical communication system; and when a transmission link fault is detected, switching the state of a link where the transmission link fault occurs from pass-through to loopback, so that an optical signal input from a non-faulty end of the link is looped back to the end for outputting.
|Light quantity adjusting device and imaging apparatus|
Provided is a light quantity adjusting device that adjusts size of a diaphragm opening centering on an optical axis of an optical system that includes: a first pair of a first and a second rectilinear diaphragm blades slidably arranged at positions opposing across the diaphragm opening in a direction moving to and from the optical axis on a plane orthogonal to the optical axis; a second pair of a third and a fourth rectilinear diaphragm blades slidably arranged at positions opposing across the diaphragm opening, in a direction orthogonal the first pair of blades move, and in a direction to and from the optical axis; and a driving unit that adjusts a size of the diaphragm opening by sliding the blades. The driving unit drives the blades so as to adjustably form and maintain a shape of an opening perimeter of the diaphragm opening in nearly similar shapes..
|Light-emitting element driving apparatus, control method of the same, optical encoder, and camera|
A light-emitting element driving apparatus comprising a light-emitting element, a driving unit including a control terminal for driving the light-emitting element based on a potential of the control terminal, and a controlling unit including a voltage holding unit, wherein the controlling unit controls the potential of the control terminal such that an emitted light amount approaches a target value and causes the voltage holding unit to hold a voltage corresponding to the potential of the control terminal, when the light-emitting element is in an emitting state, controls the potential of the control terminal to inactivate the driving unit, when setting the light-emitting element in a non-emitting state, and controls the potential of the control terminal by using the voltage of the voltage holding unit, when setting the light-emitting element in the emitting state again.. .
|Device for driving camera lens module in portable terminal|
A camera lens module of a portable terminal includes: an external case; an optical image stabilizer (ois) carrier disposed within the external case; and at least one ois driver disposed in at least one of corner regions of the external case to correct a hand shaking state of the ois carrier.. .