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 Method of manufacturing printed circuit board and  inspecting printed circuit board patent thumbnailMethod of manufacturing printed circuit board and inspecting printed circuit board
A printed circuit board is fabricated in a manufacturing process. In an inspection process, first and second light sources of an inspection device irradiate the printed circuit board with first and second light having first and second wavelength distributions.
Nitto Denko Corporation


 Optical transmitter, optical transmission system and optical communication control method patent thumbnailOptical transmitter, optical transmission system and optical communication control method
An optical transmitter has an electrical signal generator configured to generate an electrical drive signal based upon input data; an optical modulator configured to modulate an input light by the electrical drive signal, the optical modulator having a first waveguide pair, a second waveguide pair, and a phase shifter that provides a phase difference between light waves travelling through the first waveguide pair and the second waveguide pair; and a controller configured to set the phase difference at the phase shifter to 0+n*π radians, where it is an integer, when a modulation scheme of the optical modulator is changed from a first scheme using four or more phase values to a second scheme using two phase values.. .
Fujitsu Limited


 Synchronized tunable mode-locked lasers patent thumbnailSynchronized tunable mode-locked lasers
A synchronized laser system for illuminating a sample with first and second laser light pulses, said system comprising: a trigger, said trigger being operative to issue first and second trigger signals, said first and second trigger signals being emitted at an adjustable frequency with a predetermined delay therebetween; a first tunable mode-locked laser operative for emitting said first laser light pulses in response to receiving a train of said first trigger signals, a first wavelength of said first laser light pulses being dependent on said adjustable frequency in accordance with a first wavelength-frequency relationship; a second tunable mode-locked laser operative for emitting said second laser light pulses in response to receiving a train of said second trigger signals, a second wavelength of said second laser light pulses being dependent on said adjustable frequency in accordance with a second wavelength-frequency relationship; wherein said predetermined delay is such that said first and second laser light pulses are emitted so as to arrive substantially simultaneously in said sample; and said first and second wavelength-frequency relationships are selected to result in a predetermined relationship between said first and second wavelengths at each frequency.. .
Genia Photonics Inc.


 Measurement apparatus patent thumbnailMeasurement apparatus
A measurement apparatus includes: an illumination unit configured to illuminate an object to be measured with first light in a first wavelength region and second light in a second wavelength region simultaneously; an image sensing unit including an imaging optical system having an axial chromatic aberration between the two wavelength regions, a wavelength separation filter configured to separate images in the first and second wavelength regions of the object, and an image sensor configured to sense the two images; and a processor. The processor executes deconvolution processing for one of the two images, which has a large amount of defocusing, and obtains information of a shape of the object using the one image having undergone the deconvolution processing and the other one of the two images..
Canon Kabushiki Kaisha


 Bidirectional photonic integrated circuit with suppressed reflection patent thumbnailBidirectional photonic integrated circuit with suppressed reflection
A photonic integrated circuit is presented that includes a substrate, and a first and second waveguide patterned on the substrate. The first waveguide guides an input beam of radiation.
Medlumics S.l.


 Measurement apparatus patent thumbnailMeasurement apparatus
The present invention provides a measurement apparatus for measuring one of a position and an attitude of a measurement target, including an image sensor including one pixel unit in which a plurality of pixels adjacent to each other are arranged in a matrix and configured to capture the measurement target illuminated with a pattern light of a first wavelength and a light of a second wavelength and obtain a first image corresponding to the pattern light of the first wavelength and a second image corresponding to the light of the second wavelength, and an optical member configured to separate the pattern light of the first wavelength and the light of the second wavelength and make one of the pattern light of the first wavelength and the light of the second wavelength enter each pixel of the one pixel unit.. .
Canon Kabushiki Kaisha


 Method of manufacturing printed circuit board and  inspecting printed circuit board patent thumbnailMethod of manufacturing printed circuit board and inspecting printed circuit board
A base insulating layer and a cover insulating layer of a first printed circuit board are formed of a first insulating material, and a base insulating layer and a cover insulating layer of a second printed circuit board are formed of a second insulating material. During inspection of the first printed circuit board, the first printed circuit board is irradiated with first light having a peak wavelength in a first wavelength range, and an image is produced based on reflected light from the first printed circuit board.
Nitto Denko Corporation


 Low emissivity film and window having the same patent thumbnailLow emissivity film and window having the same
Provided are a low emissivity film and a window having the same. According to an embodiment of the inventive concept, the low emissivity film may include a first substrate, a first metal oxide layer, a first reflective layer, a second metal oxide layer, and a second substrate.
Electronics And Telecommunications Research Institute


 Non-invasive energy upconversion methods and systems for in-situ photobiomodulation patent thumbnailNon-invasive energy upconversion methods and systems for in-situ photobiomodulation
Products, compositions, systems, and methods for modifying a target structure which mediates or is associated with a biological activity, including treatment of conditions, disorders, or diseases mediated by or associated with a target structure, such as a virus, cell, subcellular structure or extracellular structure. The methods may be performed in situ in a non-invasive manner by placing a nanoparticle having a metallic shell on at least a fraction of a surface in a vicinity of a target structure in a subject and applying an initiation energy to a subject thus producing an effect on or change to the target structure directly or via a modulation agent.
Duke University


 Optical transmission apparatus and wavelength control method patent thumbnailOptical transmission apparatus and wavelength control method
An optical transmission apparatus includes: a plurality of optical transmitters configured to transmit optical signals having variable wavelengths, respectively; a multiplexer configured to wavelength-multiplex the optical signals transmitted from the plurality of optical transmitters in a transmission band of an optical device through which the optical signals is transmitted; and a controller configured to control, in response to nonexistence of an optical signal having a second wavelength adjacent to a first wavelength closest to an outer edge of the transmission band in the optical signals, an optical transmitter corresponding to the first wavelength so as to shift the first wavelength in a direction toward the second wavelength.. .
Fujitsu Limited


Optical transceiver using duplex media, self-homodyne detection (shd), coherent detection, and uncooled laser


An apparatus comprises an uncooled laser; a splitter coupled to the laser; a first wavelength component coupled to the splitter; a local oscillator (lo) port coupled to the first wavelength component; a modulator coupled to the splitter; a second wavelength component coupled to the modulator; and a signal port coupled to the second wavelength component. A method comprises emitting an input light; splitting the input light into a first local oscillator (lo) optical signal and a first unmodulated optical signal; modulating the first unmodulated optical signal using polarization-multiplexed, high-order modulation to produce a first modulated optical signal; transmitting the first lo optical signal to a first duplex fiber; and transmitting the first modulated optical signal to a second duplex fiber..
Futurewei Technologies, Inc.


Measurement apparatus and measurement method


A measurement apparatus includes: a first illumination unit configured to illuminate the surface with first light having a first wavelength having a light intensity distribution in a pattern shape; a second illumination unit configured to illuminate, with second light having a second wavelength, a region wider than an illumination region illuminated with the first light; an image sensing unit configured to sense an image of the surface; and a processor. The processor is configured to obtain a first image of the first wavelength and a second image of the second wavelength of the surface unit while illuminating the surface by using the first and second illumination units, correct the first image based on the second image, and obtain information of a shape of the surface by using the corrected first image..
Canon Kabushiki Kaisha


Variable optical attenuator and optical module


A variable optical attenuator includes: a transparent medium configured to transmit light; a first reflective film formed on a light incidence surface of the transparent medium; a second reflective film formed on a light emission surface of the transparent medium; and a resonance length variable medium configured to vary an optical resonance length between the first reflective film and the second reflective film, wherein the first reflective film has a first reflectivity at which at least one of light of a first wavelength and light of a second wavelength is partially transmitted through the first reflective film, the at least one of light being the light of the first wavelength, and wherein the second reflective film has a second reflectivity lower than the first reflectivity for the light of the first wavelength and a third reflectivity lower than the second reflectivity for the light of the second wavelength.. .
Fujitsu Limited


System and controlling light


An array of optical resonators is disclosed. The array comprises at least a first type of optical resonators each having a resonant response to an optical field at a first wavelength, and a second type of optical resonators each having a resonant response to an optical field at a second wavelength, being different from the first wavelength.
Ramot At Tel-aviv University Ltd.


Quantum dots based optical filter


This disclosure provides devices, apparatuses and methods of providing an optical filter with quantum dot films for converting a first wavelength of light to a second wavelength of light. The optical filter includes a plurality of high refractive index layers and a plurality of low refractive index layers alternatingly disposed between the high refractive index layers.
Pixtronix, Inc.


Acoustic device


An acoustic device that has a neck loop that is constructed and arranged to be worn around the neck. The neck loop includes a housing with a first acoustic waveguide having a first sound outlet opening, and a second acoustic waveguide having a second sound outlet opening.
Bose Corporation


Ridge loaded waveguide combiner/divider


In an example embodiment, a waveguide combiner/divider comprises: a first waveguide including a first major ridge extending to a waveguide junction; a second waveguide including a second major ridge extending to the waveguide junction, the second major ridge connected to the first major ridge at a major ridge junction within the waveguide junction; and a third waveguide including a third major ridge extending to the waveguide junction, the third major ridge connected to the major ridge junction via a major ridge transition section, the major ridge transition section having a major ridge transition section height within the waveguide junction that is less than heights of the first major ridge and second major ridge.. .
Viasat, Inc.


Illumination device having dual-emitting light emitting diode (led) die structures


An illumination device has a dual-emitting led die structure in which a first p-n diode structure emits primary light having a peak at a first wavelength, and a second p-n diode structure emits primary light having a peak at a second wavelength that is longer than the first wavelength. A phosphor medium is positioned to be stimulated by the primary light of the dual-emitting led die structure, and in response emits secondary, wavelength converted light, thereby contributing to a combined white illumination.
Apple Inc.


Measurement apparatus


The present invention provides a measurement apparatus which measures a shape of a target object, the apparatus including a projection unit configured to project, on the target object, line pattern light including a plurality of lines formed from light having a first wavelength and identification pattern light formed from light having a second wavelength different from the first wavelength and including an identification pattern of a plurality of dots for respectively identifying the plurality of lines, and an image sensing unit configured to obtain a first image corresponding to the line pattern light and a second image corresponding to the identification pattern light by separating the line pattern light and the identification pattern light projected on the target object based on wavelengths and sensing the line pattern light and the identification pattern light.. .
Canon Kabushiki Kaisha


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Backlight module and display device


Disclosed is a backlight module, which includes: a light guide plate having a light incident surface; a light source disposed as facing to the light incident surface and configured for emitting a first wave-band light. The backlight module further includes: a quantum film disposed between the light source and the light guide plate.
Boe Technology Group Co., Ltd.


System to authenticate and identify items


A system to authenticate and identify items is described herein. An example apparatus includes an illuminating source to illuminate a sample with a first emission of light having a peak wavelength at a first wavelength and a second emission of light having a peak wavelength at a second wavelength, a photo element to detect a first optical response emitted by the sample after the first emission of light and to detect a second optical response emitted by the sample after the second emission of light, and an identifier to identify the sample based on the first optical response and the second optical response..

Light-emitting arrangement with adapted wavelength converter


A light-emitting arrangement (100) comprising a reflective member (101) having a reflective surface (102) on which at least one led is arranged is disclosed. A wavelength converting member (104) comprising a first wavelength converting material, adapted to convert light of a first wavelength into light of a second wavelength, is arranged on the reflective member.
Koninklijke Philips N.v.


Optical coupler provided with an intermediate waveguide


The invention relates to an optical coupler (10) in a vertical configuration, comprising a first waveguide (12) and a second waveguide (14). The optical coupler (10) comprises a third waveguide (16) distinct from the first and second waveguides (12, 14) and extending parallel to the first and second waveguides (12, 14), the third waveguide (16) being arranged between the first waveguide (12) and the second waveguide (14) in a transverse direction (x) perpendicular to the longitudinal direction (z) and having parameters influencing the evanescent wave coupling between the first waveguide (12) and the second waveguide (14), those parameters being chosen such that the coupling (c) is greater than 15%..
Commisariat A L'energie Atomique Et Aux Energies Alternatives


Integrated waveguide coupler


A waveguide coupler includes a first waveguide and a second waveguide. The waveguide coupler also includes a connecting waveguide disposed between the first waveguide and the second waveguide.
Skorpios Technologies, Inc.


Multiplexed optoelectronic engines


An example device includes a first semiconductor component comprising at least two lasers to emit light at a first wavelength; a second semiconductor component comprising at least two lasers to emit light at a second wavelength, the first wavelength being different from the second wavelength; and an optical multiplexer to receive light from two lasers at the first wavelength and light from two lasers at the second wavelength. The optical multiplexer component includes a first output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength to a first optical fiber, and a second output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength beams to a second optical fiber..
Hewlett Packard Enterprise Development Lp


Optically coupling waveguides


Embodiments disclosed herein generally relate to an optical device for transferring light between a first and second waveguide. The optical device may generally include the first waveguide, a first support member and a base on which the first waveguide and first support member are disposed.
Cisco Technology, Inc.


Converter-cooling element assembly with metallic solder connection


An assembly is provided that includes a ceramic converter for converting light having a first wavelength into light having a second wavelength, a metal-containing reflective coating, and a cooling element. The surface of the ceramic converter is at least partly coated with the metal-containing reflective coating.
Schott Ag


Illumination device and projector


An illumination device includes: a light-emitting element that emits light in a first wavelength band; a substrate rotatable about a predetermined axis of rotation; a phosphor layer that is provided on the substrate at a first distance from the axis of rotation and excited by the light in the first wavelength band to emit light in a second wavelength band different from the first wavelength band; a scattering layer that is provided on the substrate at a second distance, different from the first distance, from the axis of rotation and on which the light in the first wavelength band emitted from the light-emitting element is incident; a first pickup optical system that is provided on the side of the phosphor layer opposite to the substrate; and a second pickup optical system that is provided on the side of the scattering layer opposite to the substrate.. .
Seiko Epson Corporation


Light source unit emitting the three primary colors of light and projector including the light source unit


To provide a light source unit whose overall size is relatively small and a projector which incorporates the light source unit, there is provided a light source unit including a first light source device for emitting light in a first wavelength range, a second light source device which is disposed on an axis of the light in the first wavelength range and having a luminescent light emitting area for emitting light in a second wavelength range by receiving the light in the first wavelength range, and a third light source device which is disposed on the axis of the light in the first wavelength range so as to face the first light source device for emitting light in a third wavelength range.. .
Casio Computer Co., Ltd.


Light-emitting device package and lighting apparatus including the same


Embodiments provide a lead frame, a first light-emitting device disposed on the lead frame and configured to emit light in a first wavelength range and a second light-emitting device configured to emit light in a second wavelength range, which is different from the first wavelength range, and a molding part disposed to surround the first light-emitting device and the second light-emitting device. The molding part includes fluoro-based red phosphors, which are excited by the light emitted from at least one of the first light-emitting device and the second light-emitting device, and the red phosphors have a full width at half maximum within a range from 5 nm to 10 nm..
Lg Innotek Co., Ltd.


Optical member, display device having the same and fabricating the same


Disclosed are an optical member, a display device including the same, and a method of fabricating the same. The optical member includes a host layer; a plurality of first wavelength conversion particles in the host layer; and a plurality of second wavelength conversion particles in the host layer, wherein the first wavelength conversion particles include compound semiconductors, and the second wavelength conversion particles include phosphors..
Lg Innotek Co., Ltd.


Quantum communication system and a quantum communication method


A quantum communication system, comprising: a quantum transmitter optically coupled to a first waveguide; a first communication device optically coupled to a second waveguide; a multi-core optical fibre comprising a first core and a second core; a spatial multiplexing unit, configured to optically couple the first waveguide to the first core and the second waveguide to the second core.. .
Kabushiki Kaisha Toshiba


Multiple electrode plane wave generator


The invention may be embodied as an ultrasonic plane wave generator having a first sheet of piezoelectric material and a second sheet of piezoelectric material. A shared electrode may be between the first sheet and the second sheet.
Qualcomm Incorporated


High efficiency fiber optical parametric oscillator


An optical apparatus that includes an optical source that generates a first optical pulse with a first optical wavelength. The optical apparatus also includes an optical amplifier that outputs an amplified pulse.
The Arizona Board Of Regents On Behalf Of The University Of Arizona, A Body Corp


Ophthalmologic imaging apparatus and ophthalmologic imaging method


An ophthalmologic imaging apparatus that captures an image of a subject's eye is provided. The apparatus includes a focusing unit configured to focus light returned from the subject's eye that is illuminated by the light of a first wavelength, onto an imaging unit, and a moving unit configured to move the focusing unit based on an optical path length difference between the light of the first wavelength and the light of a second wavelength that is different from the first wavelength when light returned from the subject's eye that is illuminated by the light of the second wavelength is focused onto the imaging unit..
Canon Kabushiki Kaisha


Endoscope system


An endoscope system includes an optical transmission section that is provided in an endoscope inserted into an interior of a subject and transmits illuminating light to a distal end, a light source section that generates light, a first lens section that receives the light, from the light source section and emits the light with characteristics of different spatial intensity distributions, a second lens section that causes the light emitted from the first lens section to enter the proximal end of the optical transmission section, a distance adjusting section that can adjust a distance, and a control section that controls the distance adjusting section that adjusts the distance between the first lens section and the second lens section so that amounts of the light of a first and second wavelength bands have a predetermined ratio of amount of light.. .
Olympus Corporation


Apparatus and methods for generating electromagnetic radiation


An apparatus includes at least one conductive layer, an electromagnetic (em) wave source, and an electron source. The conductive layer has a thickness less than 5 nm.

Controlling mitigating rogue optical network unit (onu) in hybrid passive optical network (pon) system


A controlling method for mitigating a rogue behavior of an optical network unit (onu) having a wavelength-tunable function in a hybrid passive optical network (pon) system. The controlling method includes determining whether a first wavelength for an upstream signal received from the onu strays away from an allowable range for a second wavelength assigned to the onu, and, in response to a determination that the first wavelength strays away from the allowable range for the second wavelength, transmitting an upstream wavelength adjustment request message to the onu to adjust a wavelength for the upstream signal.
Electronics And Telecommunications Research Institute


Systems and methods for light amplification


A system for optical amplification includes an optical fiber with a core containing a gain medium surrounded by a cladding, a seed light source, a control light source, and a pump source. The seed light source transmits seed light, at a first wavelength and having a first linewidth greater than 100 mhz, into the core of the fiber.

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Display device


According to one embodiment, a display device includes a first insulating substrate, a second insulating substrate, a first pixel electrode and a second pixel electrode, a wavelength conversion element to convert light of a first wavelength polarized in a first polarization direction into light of a second wavelength polarized in a second polarization direction, and a liquid crystal layer having a first thickness in an area opposed to the first pixel electrode, and having a second thickness greater than the first thickness in an area opposed to the second pixel electrode.. .
Japan Display Inc.


Light source device for endoscope, endoscope system, and operating light source device for endoscope


A light source device for an endoscope comprises a light source unit and a light source controller. The light source unit has leds independently emitting light of respective different colors, and emits first multicolor spectrum light having a first multicolor spectrum, into which the light from the leds is combined.
Fujifilm Corporation


Method for manufacturing waveguide structures on wafer-level and corresponding waveguide structures


The waveguide structure can be manufactured on wafer-scale and comprises a holding structure and a first and a second waveguides each having a core and two end faces. The holding structure comprises a separation structure being arranged between the first and the second waveguide and provides an optical separation between the first and the second waveguide in a region between the end faces of the first and second waveguides.
Heptagon Micro Optics Pte. Ltd.


Micro-opto-electromechanical systems (moems) device


A micro-opto-electromechanical systems (moems) device is described. The device comprises at least one anchor on a chip; at least one spring connected to the anchor; at least one proof mass connected to the spring, the at least one proof mass being movable with respect to the chip; a movable optical element connected to the at least one proof mass; a first waveguide connected to the chip, the first waveguide being adapted for receiving light from a light source and a second waveguide connected to the chip, the second waveguide being adapted for operatively coupling to a photodetector and the movable optical element being disposed between the back end of the first waveguide and the front end of the second waveguide..

Light emitting device


Provided is a light emitting device with effectively improved color rendering properties. A light emitting device 1 includes: a light source 2 that emits light having the maximum intensity at a predetermined wavelength; a first phosphor (yellow phosphor) 51 that absorbs the light emitted by the light source 2 and outputs fluorescent light having the maximum intensity at a first wavelength which is longer than the predetermined wavelength; and a second phosphor (red phosphor) 52 that absorbs the light emitted by the light source 2 and outputs fluorescent light having the maximum intensity at a second wavelength which is longer than the first wavelength.
Sharp Kabushiki Kaisha


Methods of making and purifying carbon nanotubes


In one aspect, methods of making semiconducting single-walled carbon nanotubes are described herein. In some implementations, a method of making semiconducting single-walled carbon nanotubes comprises providing a plurality of semiconducting nanotube seeds including (n,m) nanotube seeds and non-(n,m) nanotube seeds.
The Boeing Company


Tunable laser and tuning a laser


The invention relates to a tunable laser, the tunable laser comprising a first waveguide, a second waveguide and a semiconductor layer being arranged to separate the first waveguide from the second waveguide. The first waveguide comprises a first coupling portion and an active portion for generating a laser signal.
Huawei Technologies Co., Ltd.


System for feeding high-frequency waves to deployment structure


Provided is a high-frequency wave feeding system capable of feeding microwaves with little loss and without addition of resistive noise, using a simple deployment mechanism. The system includes a first waveguide fixed to a first structure of a deployment structure and having a choke flange, and a second waveguide fixed to a second structure of the deployment structure and having a cover flange.
Japan Aerospace Exploration Agency


Improved garnet luminophore and process for production thereof and light source


The present invention relates to an improved garnet luminophore which can be excited in a first wavelength range by electromagnetic radiation, as a result of which electromagnetic radiation can be emitted by the garnet luminophore in a second wavelength range. The invention additionally relates to a process for production of an improved garnet luminophore and to a light source comprising the garnet luminophore of the invention.
Leuchtstoffwerk Breitungen Gmbh


Lighting device comprising at least two sets of leds


The invention provides a lighting device (100) comprising a first set of light emitting diodes (10) arranged to emit light (14) in a first wavelength range of 300 nm-490 nm, a second set of light emitting diodes (11) arranged to emit light (15) in a second wavelength range of 300 nm-490 nm, a first luminescent element (12) radiationally coupled to the first and second set of light emitting diodes and arranged to convert at least a part of the light of the first wavelength range and at least a part of the light of the second wavelength range into first luminescent element light, a second luminescent element (13) radiationally coupled to at least a subset of the second set of light emitting diodes and arranged to convert at least a part of the light (15) of the second wavelength range into second luminescent element light, wherein, during operation, the brightness level of the light (14) emitted by the first set of light emitting diodes (10) and the brightness level of the light (15) emitted by the second set of light emitting diodes (11), respectively, is controllable independently of each other and wherein the lighting device is arranged to generate white lighting device light (101).. .
Koninklijke Philips N.v.


Method and system for removing a pilot tone from an optical signal


The present applies to digital wavelength converters that convert, independently of the format in which optical data may be encoded, an input waveform at a first wavelength to an output waveform at a second wavelength. When operating in an environment where an input waveform has a pilot tone associated thereto, the method and system of the present disclosure allows for the removal of the pilot tone from the input waveform, and also allows for the addition of another pilot to the output waveform..

Wavelength converters, including polarization-enhanced carrier capture converters, for solid state lighting devices, and associated systems and methods


Wavelength converters, including polarization-enhanced carrier capture converters, for solid state lighting devices, and associated systems and methods are disclosed. A solid state radiative semiconductor structure in accordance with a particular embodiment includes a first region having a first value of a material characteristic and being positioned to receive radiation at a first wavelength.
Micron Technology, Inc.


Holographic display device


Provided is a holographic display device. The holographic display device includes a light source unit configured to emit a light, and a spatial light modulator (slm) configured to modulate at least one of a phase and amplitude of the light emitted from the light source unit to output a hologram image, and including a plurality of pixel groups that are arranged in a first direction, wherein each of the plurality of pixel groups includes: first pixels arranged in a matrix x1×y1 and providing an image having a first wavelength, and second pixels adjacent to the first pixels in the first direction, arranged in a matrix x2×y2, and providing an image having a second wavelength that is different from the first wavelength..
Electronics And Telecommunications Research Institute


Holographic waveguide eye tracker


An eye tracker having a first waveguide for propagating illumination light along a first waveguide path and propagating image light reflected from at least one surface of an eye along a second waveguide path. At least one grating lamina for deflecting the illumination light out of the first waveguide path towards the eye and deflecting the image light into the second waveguide path towards a detector is disposed adjacent an optical surface of the waveguide..
Digilens, Inc.


Polarization-split wavelength filter


A polarization-splitting and wavelength filter comprising an input waveguide for receiving an optical input with both a transverse electric (te) polarization and a transverse magnetic (tm) polarizations. The polarization-splitting and wavelength filter includes a first ring/racetrack resonator disposed along the input waveguide wherein the first ring/racetrack resonator includes a first coupler for coupling the te polarization of a first wavelength.

Method and systems to utilize network communications to synchronize welders and avoid interference


The invention described herein generally pertains to a system and method related to reducing magnetic interference between two or more arcs within a geographic proximity to one another performing a welding operation on a workpiece. In an embodiment, a first waveform used to create a first arc on the workpiece and a second waveform used to create a second arc on the workpiece can have a respective phase separated by a number of degrees.
Lincoln Global, Inc.


Apparatus for detecting a substance in a rod shaped article of the tobacco industry


An apparatus (1) for detecting a substance in a rod shaped article of the tobacco industry (2), the apparatus (1) including one or more sources (10,11) of electromagnetic radiation, one or more detectors (26, 27) and a processor (32). The one or more sources (10, 11) are configured to generate electromagnetic radiation at first and second wavelengths (λ1, λ2).
British American Tobacco (investments) Limited


Optical transmission apparatus, optical transmission system, and transmission wavelength control method


An optical transmission apparatus for transmitting wavelength-multiplexed light, the optical transmission apparatus includes: an optical transmitter configured to transmit light of a third wavelength to be arranged between a first wavelength and a second wavelength adjacent to the third wavelength in the wavelength-multiplexed light, and a controller configured to control a bandwidth of the light of the third wavelength to be arranged in a first bandwidth narrower than a spacing between the first wavelength and the second wavelength.. .
Fujitsu Limited


Summation of parallel modulated signals of different wavelengths


An optical transmitter is provided. The optical transmitter includes a first optical modulator configured to modulate a first optical carrier signal having a first wavelength and a first power using a first data bit to generate a first modulated output signal, a second optical modulator configured to modulate a second optical carrier signal having a second wavelength and a second power using a second data bit to generate a second modulated output signal, wherein the second optical modulator and the first optical modulator modulate in parallel, and an optical wavelength multiplexer configured to sum the first modulated output signal and the second modulated output signal into an analog signal suitable for transmission over an optical fiber..
Huawei Technologies Co., Ltd.


Image processing device, image processing method, and program


[solution] an image region where an object exists as a target region is detected on the basis of a second captured image, when a first captured image is a captured image obtained by selectively receiving a light of a first wavelength band, and the second captured image is a captured image obtained by selectively receiving a light of a second wavelength band, the captured images being obtained by capturing the object that is transparent for the light of the first wavelength band and is opaque for the light of the second wavelength band. Subsequently, an outline of the object is superimposed on the first captured image on the basis of information of the target region detected by the target detecting unit..

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Illumination device and image display apparatus


An illumination device includes: an excitation light source that emits excitation light having a first wavelength; a fluorescent substance that, when irradiated with the excitation light, emits light having a second wavelength longer than the first wavelength and transmits a part of the excitation light, and thereby multiplexes and emits the transmitted excitation light having the first wavelength and the emitted excitation light having the second wavelength; and a driving unit that moves an irradiation position of the excitation light in the fluorescent substance with the passage of time.. .
Sony Corporation


Illumination device and image display apparatus


An illumination device includes: an excitation light source that emits excitation light having a first wavelength; and a fluorescent member that includes a fluorescent substance that, when it is irradiated with the excitation light, emits light having a second wavelength longer than the first wavelength, transmits a part of the excitation light and reflects another part of the excitation light, and a first reflective film provided at a side of the fluorescent substance, which is opposite to an excitation light incidence side, the fluorescent member emitting multiplexed light including an excitation light component reflected from the fluorescent substance and the first reflective film and a light component emitted from the fluorescent substance.. .
Sony Corporation


Multilayer mirror


A multilayer mirror for reflecting extreme ultraviolet (euv) radiation, the mirror has a substrate and a stack of layers formed on the substrate. The stack of layers comprises layers including a low index material and a high index material, the low index material having a lower real part of the refractive index than the high index material at a given operating wavelength λ.
Carl Zeiss Smt Gmbh


Apparatus and simultaneously detecting surface pressure and blood volume


An apparatus for simultaneously detecting surface pressure and blood volume of an object and a method of detecting the same are provided. The apparatus includes a printed circuit board (pcb); a light emitter disposed on the pcb which emits light of a first wavelength and light of a second wavelength; a first light receiver which detects light of the first wavelength and a second light receiver which detects light of the second wavelength; a transparent elastic body on the pcb which covers the light emitter, the first light receiver, and the second light receiver; and a dichroic coating formed on the transparent elastic body.
Samsung Electronics Co., Ltd.


Systems and methods for creating a grow cycle


Systems and methods for creating a grow cycle are described. One embodiment of a method includes receiving a plant type for providing grow lighting and receiving first data for creating a first grow cycle for a first predetermined period of plant growth, where the first grow cycle includes providing a first wavelength of photon-emitting lighting.
Circle Design Technology, Llc


Optical sources


A coherent anti-stokes raman scattering apparatus for imaging a sample comprises an optical output; an optical source arranged to generate a first optical signal at a first wavelength; and a nonlinear element arranged to receive the first optical signal, where the nonlinear element is arranged to cause the first optical signal to undergo four-wave mixing on transmission through the nonlinear element such that a second optical signal at a second wavelength and a third optical signal at a third wavelength are generated, wherein an optical signal pair comprising two of the first, second and third optical signals is provided to the optical output for imaging the sample.. .
Fianium Ltd.


Device and all-optical information exchange


An all-optical information exchange device and method are provided. The all-optical information exchange device includes: a second-order nonlinear optical waveguide, a first optical coupler, a third optical coupler, a fourth optical coupler, a first optical filter, a second optical filter and a first polarization controller; the first optical filter is transmissive to a first wavelength/waveband signal light, and the second optical filter is transmissive to a second wavelength/waveband signal light during use..
Huawei Technologies Co., Ltd.


Plasmonic color polarizer and emissive type display including the same


An emissive type display device includes: a first insulation substrate; a light conversion layer formed proximate to an inner surface of the first insulation substrate; a plasmonic color polarization layer formed on the light conversion layer; a second insulation substrate having an inner surface that faces the inner surface of the first insulation substrate; and a liquid crystal layer interposed between the inner surfaces of the first insulation substrate and the second insulation substrate. The plasmonic color polarization layer is configured to polarize and transmit light having wavelengths within a first wavelength range, and to reflect light having wavelengths within a second wavelength range..
Samsung Display Co., Ltd.


Beam guiding apparatus


In one implementation, a beam guiding apparatus includes a vacuum chamber that includes a target region arranged to receive a target material for generating euv radiation. The vacuum chamber further includes a first opening for receiving into the vacuum chamber a first laser beam and a second opening for receiving into the vacuum chamber a second laser beam.
Trumpf Lasersystems For Semiconductor Manufacturing Gmbh


Opto-mechanical inertial sensor


Embodiments of the present disclosure are directed towards a micro-electromechanical system (mems) sensing apparatus, including a laser arrangement configured to generate a light beam, a first waveguide configured to receive and output the light beam, and a second waveguide aligned endface to endface with the first waveguide. The second waveguide may be configured to receive at least a portion of the light beam from the first waveguide via optical coupling through the aligned endfaces.
Intel Corporation


Spectrally enhanced white light for better visual acuity


A lighting configuration for providing improved vision acuity includes a first light source emitting light having a first wavelength peak in the range from 500 to 530 nm; a second light source emitting light having a second wavelength peak in the range from 600 to 640 nm; and a third light source emitting light having a third wavelength peak in the range from 440 to 460 nm. The radiated power at 555 nm is less than 15% of the radiated power at the wavelength of the second wavelength peak.
Gemex Consultancy B.v.


Positioning a medical device based on oxygen saturation measurements


A method that includes receiving first and second detection signals and electrocardiograph signals; wherein the first detection signals result from an illumination, by an oxygen saturation sensor included in a device that may be removably attached to a user, of a sternal angle of a user by infrared pulses; wherein the second detection signals result from an illumination, by the oxygen saturation sensor, of the sternal angle of a user by visible light pulses; wherein the electrocardiograph signals may be detected by an electrocardiography sensor that may be included in the device; generating a first waveform template that may be responsive to the first detection signals; generating a second waveform template that may be responsive to the second detection signals; calculating an indication of the oxygen saturation characteristic of the user in response to the first and second detection signals; detecting cardiac cycle durations that may be based upon the first and second detection signals; detecting electrocardiography based cardiac cycle durations; and evaluating a quality of the indication of the oxygen saturation characteristic of the user in response to the first waveform template, the second waveform template, the cardiac cycle's durations and the electrocardiography based cardiac cycle durations.. .
Lifewatch Technologies, Ltd.


Display panel


A display panel includes a lighting device, a color conversion layer, and a reflective sheet. The lighting device at least includes a first lighting part emitting a first light of a first color having a wavelength within the first wavelength range and a second lighting part emitting a second light of the first color having a wavelength within a second wavelength range.

Enhanced emission from plasmonic coupled emitters for solid state lighting


There is provided an illumination device (100) comprising an energy source (102) for exciting a photon emitter; a first wavelength conversion layer (104) and a second wavelength conversion layer (106). At least one of the first and second wavelength conversion layer comprises a periodic plasmonic antenna array comprising a plurality of individual antenna elements (108).

Solid-state imaging device, layout data generating device and layout data generating method


A solid-state imaging device includes pixels respectively having photoelectric conversion units and arranged in matrix in basic pattern units, and an optical member arranged on the incidence side of incident light than the pixels and having constituent elements respectively corresponding to the pixels. The pixels include first, second and third wavelength range light pixels.

Detective device and detective method


A detective method for detecting a condition of a biochemical sample is provided. A first reference value and a second reference value are obtained.

Light-emitting arrangement with organic phosphor


The invention provides a light-emitting arrangement (100) comprising a light source (105) adapted to emit light of a first wavelength, and a wavelength converting member (106) arranged to receive light of said first wavelength and adapted to convert at least part of the light of said first wavelength to light of a second wavelength, said wavelength converting member comprising i) a carrier polymeric material comprising a polyester backbone comprising an aromatic moiety, and ii) at least one wavelength converting material of a specified general formula. The perylene derived compounds have been found to have excellent stability when incorporated into said matrix material..

Optical connector for endoscope


An optical connector for an endoscope has a first holding member which holds a first waveguide therein, a second holding member which holds a second waveguide therein and replaceable replacement members which intervenes between the first holding member and the second holding member so that replacement waveguides intervenes between the waveguides and is optically coupled to the waveguides. The optical connector has attachment members and a positioning mechanism which positions the holding members and the replacement members relative to one another..

Broadband waveguide based optical coupler


An apparatus having a first waveguide, a second waveguide, a third waveguide, a fourth waveguide, and a fifth waveguide is described. A symmetric coupler has a proximal end and a distal end.

Polarization conversion element


A polarization conversion element is disclosed in which an optical waveguide formed on a substrate sequentially includes a first waveguide portion, a polarization rotation portion, and a second waveguide portion, an effective refractive index of a te mode having the highest effective refractive index in an eigen mode of waveguide light on a sectional surface of the first waveguide portion is higher than an effective refractive index of a tm mode having the highest effective refractive index, an effective refractive index of the tm mode having the highest effective refractive index on a sectional surface of the second waveguide portion is higher than an effective refractive index of the te mode having the highest effective refractive index, and heights of waveguide structures (for example, cores) of the first waveguide portion and the second waveguide portion are equal to each other.. .

Active waveguide optical gyroscope


The present application is directed an optical gyroscope. The optical gyroscope includes a substrate including a first and a second waveguide disposed thereon.

Light module and providing wavelength-converted light in the red spectral range and projection device therefor


A light module may include a conversion means, which is designed to absorb excitation radiation having a first wavelength of an absorption spectrum and to convert it into light having a second wavelength of an emission spectrum. The light module includes an excitation radiation source designed to emit excitation radiation.

Color filter array and image sensor having the same


A color filter array includes a plurality of first pixels transmitting light having visible wavelengths, a plurality of second pixels transmitting light having a first range of wavelengths in the visible spectrum, a plurality of third pixels transmitting light having a second range of wavelengths in the visible spectrum, and a plurality of crosstalk detection pixels each including a first half pixel and a second half pixel, wherein the first half pixel transmits light having first wavelengths in a part of the first range, and wherein the second half pixel partially transmits light having second wavelengths in a part of the second range.. .
Sk Hynix Inc.


Solid-state imaging apparatus and imaging system


A solid-state imaging apparatus, comprising a plurality of pixels arrayed on a substrate, and element isolation regions formed between the plurality of pixels on the substrate, wherein the plurality of pixels include a first pixel including a first color filter for passing light having a first wavelength, a second pixel including a second color filter for passing light having a second wavelength longer than the first wavelength, and a pixel for focus detection including a light-shielding pattern arranged on the photoelectric conversion portion to limit light entering the photoelectric conversion portion, and among the element isolation regions, a first region between the pixel for focus detection and the first pixel has a potential barrier against a signal charge, which is lower than that of a second region between the first pixel and the second pixel.. .
Canon Kabushiki Kaisha


Optical coupler provided with a structuration


The invention relates to an optical coupler (10) in a vertical configuration, capable of working for a wavelength and comprising a first waveguide (12) and a second waveguide (14). The second waveguide (14) has a patterning (33) in the form of a series of patterns (36), the patterns (36) extending along a transverse direction (x) perpendicular to the longitudinal direction (z), being parallel to each other and orthogonal to the general direction of the first waveguide (12), each pattern (36) being arranged both in the core (30) and the cladding (32) of the second waveguide (14) and having parameters influencing the evanescent wave coupling between the first waveguide (12) and the second waveguide (14), said parameters being chosen such that the coupling (c) is greater than 15%..
Alcatel Lucent


Light source device and endoscope apparatus comprising the same


A light source device includes a first semiconductor light source, a second semiconductor light source, and a wavelength converter. The first semiconductor light source emits light in a first wavelength range.
Olympus Corporation


Color rendering index tunable lamp and luminaire


The invention provides a provides a lighting unit (100) comprising a first light source (110), a second light source (210), a first wavelength converting (1100), a second wavelength converting element (2100), wherein the lighting unit further comprises a transport infrastructure (20) configured to arrange the first light source, the second light source, the first wavelength converting element, and the second wavelength converting element in a first configuration or a second configuration by transport of one or more of these, wherein in the first configuration and the second configuration the lighting unit provides lighting unit light having substantially the same color point while having different color rendering indices. With such lighting unit, it is possible to switch between high cri-low efficiency and low cri-high efficiency at a given color temperature (or color point)..
Koninklijke Philips N.v.


System and generating high energy optical pulses with arbitrary waveform


A system for generating an optical signal having a preselected waveform includes: a laser source; a first waveform generator configured to apply a first signal to the laser source to create a laser output; an intensity modulator configured to receive the laser output; a second waveform generator configured to apply a second signal to the intensity modulator, the intensity modulator being configured to generate a pre-distorted laser signal based on the second signal and the laser output.. .
Raytheon Company


Wavelength converted semiconductor light emitting device


In embodiments of the invention, a light emitting device includes a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region. A first wavelength converting layer is disposed in a path of light emitted by the light emitting layer.
Koninklijke Philips N.v.


Dual spectral imager with no moving parts


A device images radiation from a scene in two wavelength bands. An uncooled detector of the radiation includes two separate detector regions.
Ci Systems (israel) Ltd.


Light emitting arrangement with adapted output spectrum


A light-emitting arrangement (100) is disclosed, which is adapted to produce white output light enhancing the color perception of e.g. Food in retail environments.
Koninklijke Philips N.v.


Compounds, systems, and methods for monitoring and treating a surface of a subject


Compounds, systems, and methods are provided for the design and assembly of a non-invasive, analyte sensing dressing. The dressing can be therapeutic.

Scattered-light smoke detector with a two-color light-emitting diode


A scattered-light smoke detector includes a detector unit that operates according to the scattered-light principle. The detector unit includes a light-emitting diode (led) to irradiate particles to be detected and a spectrally sensitive photosensor to detect the light scattered by the particles.
Siemens Schweiz Ag


Methods for monitoring strain and temperature in a hot gas path component


A method of monitoring a surface temperature of a hot gas path component includes directing an excitation beam having an excitation wavelength at a layer of a sensor material composition deposited on a hot gas path component to induce a fluorescent radiation. The method includes measuring fluorescent radiation emitted by the sensor material composition.
General Electric Company


Marker lamp


A marker lamp mounted on a vehicle includes a light source unit (7) including an organic el element (10). The light source unit (7) includes a first light emitting part (12a) for emitting red light of a first wavelength band and a second light emitting part (12b) for emitting red light of a second wavelength band different from the first wavelength band..
Koito Manufacturing Co., Ltd.


Optical transmission apparatus and wavelength calibration method


An optical transmission apparatus, includes: a reference-wavelength light source configured to generate reference light; a reference wavemeter configured to be calibrated by using the reference light; a receiver configured to receive measurement light transmitted from another optical transmission apparatus and wavelength information about the measurement light; and a controller, wherein the controller configured to: detect error between a first wavelength of the measurement light detected by using the reference wavemeter, and a second wavelength included in the wavelength information; and send error information that represents the error to the another optical transmission apparatus.. .
Fujitsu Limited


Device and optical beam combination


An optical apparatus includes a first beam combining device arranged to receive a first optical beam having a first wavelength at a first location and a second optical beam output having a second wavelength at a second location. The second optical beam has a polarization that is substantially orthogonal to a polarization of the first optical beam.
Futurewei Technologies, Inc.


Fiber optic distributed vibration sensing with wavenumber sensitivity correction


An apparatus and method for correcting the wavenumber sensitivity of a distributed fiber optic sensor are disclosed. The distributed fiber optic sensor is deployed in a region of interest to measure a characteristic of an incident acoustic wavefield.
Schlumberger Technology Corporation


Dual wavelength dual interferometer with combiner-splitter


The system includes a dual interferometer sub-system including a first and second channel. The system includes an illumination source.
Kla-tencor Corporation


Light emitting diode module with three part color matching


A light emitting diode module is produced using at least one led and at least two selectable components that form a light mixing chamber. First and second selectable components have first and second types of wavelength converting materials with different wavelength converting characteristics.
Xicato, Inc.


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Steel cord for tire reinforcement


A steel cord for tire reinforcement according to the present invention is elongated in one direction and comprises a plurality of strands twisted periodically on one another, and the steel cord for tire reinforcement is characterized in that the steel cord is formed to have a first waveform having a first waveform surface and a second waveform having a second waveform surface, the first and second waveforms are formed to overlap each other, and a predetermined inclined angle is defined between the normal of the first waveform surface of the first waveform and the normal of the second waveform surface of the second waveform.. .
Hongduk Industrial Co., Ltd.


Vein scanner with user interface for controlling imaging parameters


A portable handheld vein-image-enhancing device broadly includes: a first laser emitting a beam of light at a first wavelength; a second laser emitting a beam of light at a second wavelength; a scanner to scan the beams of light onto the target surface; a photo detector to receive the reflected vein image and convert the image into a signal, for use by the second laser and scanner to project the image onto the target surface; and a user interface and electronic circuitry to permit adjustments to one or more of the following imaging parameters: a vein size parameter to set a vein size to be imaged by the device; a field of view size; a size for a field of high resolution for the projected image; a brightness of the projected image; and a laser output intensity parameter setting a depth of penetration by the first wavelength for the imaging.. .
Accuvein, Inc.




Second Wave topics:
  • Second Wave
  • Calibration
  • Semiconductor
  • Semiconductor Devices
  • Rc Oscillator
  • Semiconductor Device
  • Calibration Circuit
  • Fluorescence
  • Microscopy
  • Microscope
  • Transducer
  • Signal Processing
  • Control Program
  • Digital Signal Processing
  • Image Acquisition


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