Abstract: A measuring apparatus, comprising at least a first light source and a second light source for transmitting light; at least one light receiver for receiving light at least of a first received wavelength and a second received wavelength; at least one dispersing element for bending and/or refracting light; wherein the light transmitted by the light sources strikes the dispersing element and is so turned by the dispersing element that it strikes the light receiver. The first light source is arranged at a first angle relative to the dispersing element and the second light source at a second angle relative to the dispersing element, wherein the second angle differs from the first angle. The first angle is so embodied that the wavelength of the light turned by the dispersing element corresponds to the first received wavelength, and wherein the second angle is so embodied that the wavelength of the light turned by the dispersing element corresponds to the second received wavelength.

Abstract: A dual-mode includes a light source configured to project a structured illumination from which visible light can be filtered. The dual-mode imager also includes a detector configured to capture both the structured illumination and visible light from the scene. A temporal or spatial filter is used to selectively block visible light from one or more portions of the detector while passing the structured illumination to the one or more portions of the detector.

Abstract: A light sensor arrangement according to the proposed principle comprises at least one first unshielded well (D0) and at least one second shielded well (D1) in a substrate (P). The at least one first unshielded well (D0) is being exposed to incident light (?) and configured to generate a first sensor signal (Ch0) as a function of the incident light (?). The at least one second shielded well (D1) in the substrate (p) being shielded from the incident light (?) and configured to generate a second sensor signal (Ch1) as a function of the incident light (?). The light sensor arrangement further comprises means for temperature compensation providing the first and second sensor signals (Ch0, Ch1) as temperature compensated sensor signals as a function of substrate temperature. Means to determine spectral content of the incident light (?) are provided to determine the spectral content as a function of the temperature compensated first and second sensor signals (Ch0, Ch1).

Abstract: A solid-state image capture device includes photoelectric conversion elements that perform photoelectric conversion on incident light to obtain signal charges, color filter portions provided at light incident sides of the corresponding photoelectric conversion elements, and an organic photoelectric conversion layer provided at light incident sides of the color filter portions. The organic photoelectric conversion layer contains a pigment that is absorptive of near infrared light.

Abstract: A measuring machine includes a non-contact probe that detects a step gauge without contact. The non-contact probe includes an emitting element that radiates light, a light receiving element that receives the light radiated from the emitting element, and an optical filter that covers an optical path to the light receiving element. The optical filter includes a transmission band in which the light radiated from the emitting element is transmitted and a blocking band in which light to which the light receiving element is sensitive is blocked.

Abstract: An optical finger navigation module includes a light source configured for emitting light in a first spectrum; a cover housing disposed above the light source, the cover housing including a window plate that is configured to transmit light in at least the first spectrum, and a light guiding structure that is configured to transmit light in at least a second spectrum; a first light sensor configured to sense light in the first spectrum originally emitted by the light source, reflected by an object, and then transmitted through the window plate; a second light sensor configured to sense light in the second spectrum transmitted through the light guiding structure or the window plate; and a substrate. The light source, the cover housing, the first light sensor and the second light sensor are coupled and mounted to the substrate.

Abstract: A wavelength tunable interference filter includes a fixed substrate, a movable substrate facing the fixed substrate, a fixed reflective film provided on the fixed substrate, a movable reflective film provided on the movable substrate and facing the fixed reflective film with an inter-reflective film gap interposed therebetween, a first wiring electrode provided on the fixed substrate, and a first conductive member provided on the fixed substrate. The fixed reflective film is connected to the first wiring electrode through the first conductive member, and the thickness of the first conductive member is less than the thickness of the first wiring electrode.

Abstract: An inspection apparatus for a sheet of paper subjected to a process to impart a translucent property such as a “watermark” or a “security window” includes: an inspection cylinder in which a surface facing the sheet of paper is provided with a luminescence-producing portion; UV-LED illuminators which irradiate the sheet of paper with light containing the ultraviolet rays; a color camera which images the sheer of paper; an ultraviolet cut filter which eliminates the ultraviolet rays in the light emitted from the UV-LED illuminators and reflected off the sheet of paper as well as the luminescence-producing portion and makes only the light having wavelengths longer than wavelengths of the ultraviolet rays incident on the color camera; and a control device which determines appropriateness of a processed portion on the sheet of paper having the translucent property on the basis of luminescence in a visible light range produced by the luminescence-producing portion and made incident on the color camera.

Abstract: The present invention relates to a multi-channel luminous energy sensing unit, an apparatus for measuring light energy of an exposure device and a method for measuring light energy by channel. In accordance with one embodiment of the present invention, a multi-channel luminous energy sensing unit to sense an amount of light illuminated from a light source, which includes a board; and a plurality of light sensor modules arranged on the board for sensing at least two channel light with bandwidths different from each other among the light illuminated from the light source, is provided. And also, an apparatus for measuring light energy of an exposure device including the same and a method for measuring light energy by channel are provided.

Abstract: A method includes sampling a first intensity of light with a first array of photo detectors of a digital camera. A second intensity of light is sampled with a second array of photo detectors of the digital camera. A first channel processor coupled to the first array of photo detectors generates a first image using first array data which is representative of the first intensity of light sampled by the first array of photo detectors. A second channel processor coupled to the second array of photo detectors generates a second image using second array data which is representative of the second intensity of light sampled by the second array of photo detectors. The first array of photo detectors, the second array of photo detectors, the first channel processor, and the second channel processor are integrated on or in a semiconductor substrate.

Abstract: A light source apparatus that generates a light to be supplied to an endoscope, which includes: LEDs of respective colors that emit lights; collimator lenses that receive emitted lights and emit the received lights; and illuminance sensors arranged at positions where the illuminance sensors can receive both of leak lights of the lights emitted from the LEDs of respective colors, which are not used as illumination lights, and lights emitted from the LEDs of respective colors and reflected by the collimator lenses.

Abstract: Detectors and methods for gathering, detecting and analyzing electromagnetic radiation are disclosed. A radiation detector includes one or more positive lenses to direct radiation to mirrors or to a photodetector. Coordinates of directed radiation are measured and interpreted to determine the angle of arrival. A color filter mosaic may be present to determine wavelengths of detected radiation. Temporal characteristics of the radiation may be measured.

Abstract: An optical filtering structure comprising a stack of layers forming a first filter letting pass a first spectral band, and a second filter adjacent to the first filter and which lets pass a second spectral band comprising: a plurality of dielectric layers common to the two filters and of different refractive indices; n first metal layers common to the two filters; m second metal layers arranged only in the second filter; and wherein at least one of said dielectric layers comprises, in the first filter, a thickness different to that in the second filter, and/or wherein at least one dielectric layer is arranged only in the second filter; n being an integer greater than or equal to 0, and m being an integer greater than or equal to 1.

Abstract: The colorimetry apparatus includes a light source for emitting light to a surface of a detected object, a diffraction grating for spectrally separating, for each wavelength, the light emitted from the light source and reflected by the detected object, and a line sensor including multiple pixels, for receiving the light, which is spectrally separated by the diffraction grating, for the each wavelength by the multiple pixels. The light source and the line sensor are arranged on the common substrate.

Abstract: Disclosed is an arrangement for detecting first light (L1) and second light (L2), with the first light (L1) and second light (L2) having no wavelength in common. The arrangement includes a first effective detector area (D1) and a second effective detector area (D2). The first effective detector area (D1) is exposed to the first light (L1) and/or second light (L2) different from the first light (L1) and/or second light (L2) to which the second effective detector area (D2) is exposed when the arrangement is exposed to spatially uniformly distributed first light (L1) and second light (L2). The difference between the first light (L1) and/or second light (L2) to which said first detector area (D1) and second detector area (D2) are exposed to can be a difference in intensity and/or difference in an angle of incidence relative to the arrangement.

Abstract: The present invention provides a stacked organic light emitting diode that comprises a first electrode; a second electrode; and at least two light emitting units that are located between the first electrode and the second electrode. The light emitting unit satisfies the following energy relation equation, and includes an n-type organic layer and a p-type organic layer that form NP conjunction, and also includes an n-type doped organic layer that is located between the light emitting units: EpH?EnL?1 eV wherein EnL is a LUMO (lowest unoccupied molecular orbital) energy level of the n-type organic layer and EpH is a HOMO (highest occupied molecular orbital) energy level of the p-type organic layer.

Abstract: A solar cell and method for producing same is disclosed. The solar cell includes a multijunction solar cell structure and a notch filter designed to reflect solar energy that does not contribute to the current output of the multijunction solar cell. By reflecting unused solar energy, the notch filter allows the solar cell to run cooler (and thus more efficiently) yet it still allows all junctions to fully realize their electrical current production capability.

Abstract: Embodiments of the present invention relate to a reflective focusing and transmissive projection device having a body, a set of reflective-focusing components and a light detector. The body has a surface layer with first and second surfaces, and a detecting layer outside the second surface. The set of reflective-focusing components is in the surface layer. Each reflective-focusing component has a contouring element and a curved reflective element conformed to the contouring element. The curved reflective element is configured to reflect light of a first type, transmit light of a second type and focus the light of the first type outside the first surface of the surface layer. The light detector is in the detecting layer, and is configured to receive light and generate light data associated with the received light. Also, the contouring element can be configured to focus the light of the second type on the light detector.

Abstract: A condensing-type portable fluorescence detection system which detects antigens using fluorescence includes: a light source generating light to excite a fluorescent substance; a first filter selecting a proper wavelength range from the light generated from the light source; a spherical mirror including two hemispherical mirrors having different curvature radiuses and connected to each other, and condensing the light excited and emitted from the light source; a second filter selecting a proper wavelength range of the light condensed by the spherical mirror; and a photodetector detecting fluorescence from the light condensed by the spherical mirror and passing through the second filter.

Abstract: Digital camera systems and methods are described that provide a color digital camera with direct luminance detection. The luminance signals are obtained directly from a broadband image sensor channel without interpolation of RGB data. The chrominance signals are obtained from one or more additional image sensor channels comprising red and/or blue color band detection capability. The red and blue signals are directly combined with the luminance image sensor channel signals. The digital camera generates and outputs an image in YCrCb color space by directly combining outputs of the broadband, red and blue sensors.

Abstract: A correlation confocal microscope uses correlated photon pairs to improve resolution. It employs a source of a light beam converging to a point location on a sample, and an objective that gathers light from the point location and generates an image beam. A modulator applies a spatial pattern of modulation to the source light beam to define spatially correlated photons whose spatial correlations are preserved in modulated light gathered from the sample. A filter applies a modulation-selective filter function to the image light beam to generate a filtered light beam of like-modulated photons. A coincidence detector detects temporally coincident photon pairs in the filtered light beam, generating a pulse output that indicates the magnitude of a light-detectable property (such as transmissivity or reflectivity) of the sample at the point location. The modulator may apply phase modulation and the filter may be a phase-sensitive component such as an interferometer.

Abstract: A System and method for self-checking a fluorometer for failure or deteriorated performance includes fluorescent reference standards mounted on a support to move with respect to one or more fixed fluorometers. The intensity of the fluorescent emission of the fluorescent reference standard is initially measured with the fluorometer, and, after a prescribed interval of usage of the fluorometer, a test measurement of the intensity of the fluorescent emission of the fluorescent standard is taken with the fluorometer. The test measurement is compared to the initial measurement, and failure or deteriorated performance of the fluorometer is determined based on a deviation of the test measurement from the initial measurement.

Abstract: A multi-wavelength detector for a multiplex capillary electrophoresis system comprising a linear filter placed in between the capillary detection windows and a 2-dimensional detector. The linear filter is oriented such that the change in wavelength of the filter is in the direction of flow of the fluid within the capillary detection windows. And a method for time shift correction and to merge all peaks into a single overlapped peak.

Abstract: An apparatus, system, and method for emission filter. A filter apparatus is presented. In one embodiment, the filter apparatus may be adapted for fluorescence spectroscopy. In a particular embodiment, the filter apparatus comprises a solution. The solution may include a polar protic solvent and an absorbing specimen. Additionally, the filter apparatus may include an adhesive to conform the solution into a solid filter.

Abstract: The present invention provides a highly reliable spectral module. When light L1 proceeding to a spectroscopic unit (4) passes through a light transmitting hole (50) in the spectral module (1) in accordance with the present invention, only the light having passed through a light entrance side unit (51) formed such as to become narrower toward a substrate (2) and entered a light exit side unit (52) formed such as to oppose a bottom face (51b) of the light entrance side unit (51) is emitted from a light exit opening (52a). Therefore, stray light M incident on a side face (51c) or bottom face (51b) of the light entrance side unit (51) is reflected to the side opposite to the light exit side unit (52) and thus is inhibited from entering the light exit side unit (52). Therefore, the reliability of the spectral module (1) can be improved.

Abstract: Provided is an image sensor device. The image sensor device includes a device substrate having a front side and a back side. The device substrate has a radiation-sensing region that can sense radiation that has a corresponding wavelength. The image sensor also includes a first layer formed over the front side of the device substrate. The first layer has a first refractive index and a first thickness that is a function of the first refractive index. The image sensor also has a second layer formed over the first layer. The second layer is different from the first layer and has a second refractive index and a second thickness that is a function of the second refractive index.

Abstract: A light source device including at least one light source, an optical module, a diffractive optical element, and a shielding component is provided. The at least one light source emits at least one light beam, and the light beam has a wavelength range. The optical module is disposed on a transmission path of the light beam to provide a plurality of optical surfaces. The optical surfaces respectively have a plurality of different inclination angles, so as to transmit at least a portion of the light beam having at least a predefined wavelength to a plurality of different directions. The diffractive optical element is disposed on the transmission path of the light beam, so as to diffract the light beam. The shielding component has an outlet. A portion of the diffracted light beam passes through the outlet to the outside.

Abstract: An imaging device including an electronic shutter and a pixel array with color pixels with different characteristics of spectral sensitivity arranged. The pixel array part has at least one clear pixel, the plurality of color pixels including (i) a first color filter pixel having a peak of spectral sensitivity characteristics for red, (ii) a second color filter pixel having a peak for blue, and (iii) a third color filter pixel having a peak for green. The clear pixel has a high transmittance arranged in an oblique pixel array system at a given position of a given row and a given column with respect to the first color filter pixel, the second color filter pixel, and the third color filter pixel. An electronic shutter is separately driven for the at least one clear pixel and for the plurality of color filter pixels.

Abstract: A spatially resolved spectral device comprising a dispersive array to receive an incident light comprising a principal ray. The dispersive array comprising a plurality of dichroic layers, each of the plurality of dichroic layers disposed in a path of a direction of the principal ray. Each of the plurality of dichroic layers configured to at least one of reflect or transmit a different wavelength range of the incident light. The device further comprising a detection array operatively coupled with the dispersive array. The detection array comprising a photosensitive component including a plurality of detection pixels, each of the plurality of detection pixels having a light-receiving surface disposed parallel to the direction of the principal ray to detect a respective one of the different wavelength ranges of incident light reflected from a corresponding one of the plurality of dichroic layers.

Abstract: A light sensor is used to detect ambient light conditions. According to an example embodiment, a light sensor (112) detects color temperature and, in some instances, intensity characteristics of ambient light (120, 130, 140) in an environment and uses these detected characteristics (116) to determine the location of the sensor relative to natural and artificial light sources. This location determination is used to selectively operate circuits in a device such as a hand-held telephone, computer device or personal data assistant (PDA).

Abstract: A monitoring device includes a light source, an optical filter, and an optical detector. The monitoring device may monitor curing processes, such as ultraviolet (UV) curing processes to determine the progression of the level of cure of a light-activated material to a substrate. The light source emits light toward a light-activated material, such as a film, and/or a substrate. The optical filter is positioned so that a wavelength of the light is transmitted through the optical filter after the light is reflected off of the substrate and/or the film. The optical detector is positioned to detect the light that is transmitted through the optical filter.

Abstract: An image sensor includes a first imaging pixel for a first color having a photosensitive region disposed within a substrate of the image sensor and a second imaging pixel for a second color that is different from the first color having a photosensitive region disposed within the substrate. A refraction element disposed adjacent to the substrate, so that the refraction element refracts light of the first color to the photosensitive region of the first imaging pixel and refracts light of the second color to the photosensitive region of the second imaging pixel.

Abstract: A filter for an optical fibre temperature sensor comprising at least one first and one second optical filter for filtering an optical pulse reflected by said optical fibre, characterised in that said at least one first and one second optical filter comprise standard commercial filters complying with ITU specifications, said optical pulse lying within the range from 1570 nm to 1580 nm.

Abstract: In order to reduce light leak influencing the detection capability of a fluorescence imaging apparatus, an interference filter and an absorption filter on an emission-side filter section are arranged serially in the traveling direction of the fluorescence. The interference filter and the absorption filter that are in use for such an arrangement block the waveband light equivalent to the excitation light irradiated onto a sample while fully transmitting the waveband light equivalent to the fluorescence.

Abstract: A solid state imaging device includes an array of active pixels and an infrared cut filter formed over the sensor. Optionally, a slot in the infrared cut filter allows infrared illumination to reach the sensor to be detected by pixels covered by a visually opaque filter and surrounded by pixels of special types that limit charge leakage and enable high dynamic range sensing of infrared illumination. A ratio of average infrared signal to average brightness indicates an amount of infrared illumination reaching the imaging device.

Abstract: The invention relates to a filter device for an illumination system, especially for the correction of the illumination of the illuminating pupil, including a light source, with the illumination system being passed through by a bundle of illuminating rays from the light source to an object plane, with the bundle of illuminating rays impinging upon the filter device, including at least one filter element which can be introduced into the beam path of the bundle of illuminating rays, with the filter element including an actuating device, so that the filter element can be brought with the help of the actuating device into the bundle of illuminating rays.

Abstract: A lens module for transforming optical signals into electrical signals includes an image sensor provided at a tail of an optical axis to transform optical signals into electrical signals; a first lens provided on the image sensor, wherein the first lens has at least a non-flat lens portion; and a second lens provided on the first lens, wherein the second lens has at least a non-flat lens portion.

Abstract: A solid-state imaging device includes a semiconductor substrate, photodiodes, a first insulating film, a second insulating film, a third insulating film, and a color filter. The photodiodes are disposed on the semiconductor substrate. The first insulating film covers a multilayer wiring on the semiconductor substrate. The first insulating film comprises a material having a first refractive index lower than a refractive index of the semiconductor substrate for at least bottom surface and top surface portions of the first insulating film. The second insulating film has a second refractive index higher than the first refractive index. The third insulating film has a third refractive index higher than the second refractive index.

Abstract: An apparatus for concentrating light and associated method of use is disclosed. This apparatus includes a first outer wall having an anterior end, a posterior end, an inner surface and an outer surface, the inner surface defining an interior portion, the interior portion having an anterior end and a posterior end, and a light source disposed within the interior portion. The first outer wall has an opening in the posterior end, the opening having an opening diameter. The interior portion has a substantially frusto-conical shape and has a cross-sectional diameter at the opening equal to the opening diameter and a second cross-sectional diameter near the anterior end that is less than the opening diameter and the inner surface is photo-reflective. The light passes through a sample through an aperture and a collector lens or a second outer wall. A transmission diffraction grating may be utilized.

Abstract: To make miniaturization of a laser module easier. In the laser block of a laser module, multiple semiconductor laser elements that each emit a beam of laser light are disposed. A collimating lens receives and collimates the individual beams of laser light emitted from the laser block, and emits collimated light. Photodiodes detect the individual beams of collimated light emitted from the collimating lens, and output signals corresponding to the intensities of the individual beams of collimated light. Additionally, the photodiodes are disposed on the propagation paths of collimated light emitted from the collimating lens, and in addition, are disposed at positions that receive a portion of collimated light for all the individual beams of collimated light which are emitted.

Abstract: In various exemplary embodiments, optically sensitive devices comprise a plurality of pixel regions. Each pixel region includes an optically sensitive layer over a substrate and has subpixel regions for separate wavebands. A pixel circuit comprises a charge store and a read out circuit for each subpixel region. Circuitry is configured to select a plurality of subpixel elements from different pixels that correspond to the same waveband for simultaneous reading to a shared read out circuit.

Abstract: In one aspect of the disclosure, a gas sensor is provided, comprising: a chamber for containing a gas sample in use, and a radiation source adapted to emit radiation within a first waveband. A photoluminescent material, upon absorption of radiation of a first wavelength within the first waveband, emits radiation of a second wavelength, the photoluminescent material being responsive to the presence of a target gas species in the gas sample. The gas sensor further comprises a luminescence detector assembly. The luminescence detector assembly is adapted to detect radiation of the second wavelength and output a corresponding measurement signal related to the concentration of the target gas species. An optics assembly is adapted to receive radiation emitted by the radiation source and to converge the radiation towards a location at which the luminescence detector assembly cannot receive radiation.

Abstract: A system for evaluating the susceptibility of a soybean plant to iron deficiency chlorosis is described. Soybean plants are planted in range and rows multiple micro-plots and a cart is used to pass a radiometric sensor over the micro-plots. The cart may have a sensor housing that is divided into multiple partitions with a radiometric sensor assembly positioned within each partition. Each sensor assembly generates a data signal and a computer receives and stores the data signals. The field cart is positioned above the range. The number of partitions corresponds to the number of rows in the range and each sensor assembly is positioned above a single row.

Abstract: A light sensing device has a first filter to block visible light in a light path. The light sensing device also has a first color sensor and a clear sensor, to detect light in the light path after the first filter. A light intensity calculator computes a measure of the intensity of visible light in the light path, based on a difference between (a) an output signal of the first color sensor, and (b) an output signal of the clear sensor. Other embodiments are also described and claimed.

Abstract: A scanning microscope is provided with a scan unit that scans a sample, the scanning microscope including: a transmissive VPH grating for dispersing light from the sample; and a photodetector for detecting the light diffracted by the VPH grating.

Abstract: A detection system including a detection assembly to receive emission light emitted from a sample. The detection assembly has a multi-band dichroic member and at least first and second detection devices. The multi-band dichroic member has a transmission/reflection characteristic with first and second transmissive regions and a reflective region along a wavelength spectrum. The dichroic member transmits portions of the emission light that align with the first and second transmissive regions and reflects a portion of the emission light that aligns with the reflective region. The dichroic member includes a single mirror with an incident surface. The incident surface is configured to transmit the portions of the emission light that align with the first and second transmissive regions and configured to reflect the portion of the emission light that aligns with the reflective region.

Abstract: A physical information acquisition method in which a corresponding wavelength region of visible light with at least one visible light detection unit coupled to an image signal processing unit is detected, each said visible light detection unit comprising a color filter adapted to transmit the corresponding wavelength region of visible light; a wavelength region of infrared light with at least one infrared light detection unit coupled to the image signal processing unit is detected; and, with the signal processing unit, a first signal received from the at least one visible light detection unit by subtracting a product from said first signal is corrected, said product resulting from multiplication of a second signal received from the at least one infrared light detection unit and a predetermined coefficient factor.

Abstract: An interference filter includes a first substrate, a second substrate opposed to the first substrate, a first optical film provided to the first substrate, and a second optical film provided to the second substrate and opposed to the first optical film, at least one of the first and second optical films has a metal film having a reflecting property and a transmitting property with respect to light in a desired wavelength band, a surface and an edge portion of the metal film are covered by a barrier film, and the barrier film is formed of a material having conductivity.

Abstract: A light-collecting device includes at least one first annular region having a first refractive index, and at least one second annular region having a second refractive index different from the first refractive index, the at least one first annular region and the at least one second annular region are adjacently and alternately arranged in a concentric manner, and at least one of the at least one first annular region and the at least one second annular region includes a gap at a portion where a width of the annular region gradually decreases.

Abstract: A color sensor with a plurality of optical sensors in which the number of terminals for connection with the outside can be reduced. The color sensor includes a plurality of optical sensors each provided with a photoelectric conversion element and an optical filter over a light-transmitting substrate. The optical filters in the plurality of optical sensors have light-transmitting characteristics different from each other. The plurality of optical sensors is mounted over an interposer including a plurality of terminal electrodes for electrical connection with an external device. The interposer includes a wiring having a plurality of branches for electrical connection between the terminal electrode for inputting a high power supply potential to the plurality of optical sensors and a wiring having a plurality of branches for electrical connection between the terminal electrode for inputting a low power supply potential to the plurality of optical sensors.