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1229results about "Spectrum generation using multiple reflection" patented technology
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Compact spectrometer device
InactiveUS6057925ARugged in constructionEasy to manufactureRadiation pyrometrySpectrum investigationDetector arrayLight beam
A color measuring sensor assembly includes an optical filter such as a linear variable filter, and an optical detector array positioned directly opposite from the optical filter a predetermined distance. A plurality of lenses, such as gradient index rods or microlens arrays, are disposed between the optical filter and the detector array such that light beams propagating through the lenses from the optical filter to the detector array project an upright, noninverted image of the optical filter onto a photosensitive surface of the detector array. The color measuring sensor assembly can be incorporated with other standard components into a spectrometer device such as a portable calorimeter having a compact and rugged construction suitable for use in the field.
Owner:VIAVI SOLUTIONS INC
Method and apparatus for a downhole spectrometer based on electronically tunable optical filters
ActiveUS20050099618A1High resolution spectroscopyEasy to analyze and useRadiation pyrometrySurveyGas oil ratioAPI gravity
The present invention provides an apparatus and method for high resolution spectroscopy (approximately 10 picometer wavelength resolution) using a tunable optical filter (TOF) for analyzing a formation fluid sample downhole and at the surface to determine formation fluid parameters. The analysis comprises determination of gas oil ratio, API gravity and various other fluid parameters which can be estimated after developing correlations to a training set of samples using a neural network or a chemometric equation.
Owner:BAKER HUGHES INC
In-situ method of analyzing cells
InactiveUS6165734AWidespread samplingEasy to masterRaman/scattering spectroscopyRadiation pyrometryHistological stainingBiology
A method of in situ analysis of a biological sample comprising the steps of (a) staining the biological sample with N stains of which a first stain is selected from the group consisting of a first immunohistochemical stain, a first histological stain and a first DNA ploidy stain, and a second stain is selected from the group consisting of a second immunohistochemical stain, a second histological stain and a second DNA ploidy stain, with provisions that N is an integer greater than three and further that (i) if the first stain is the first immunohistochemical stain then the second stain is either the second histological stain or the second DNA ploidy stain; (ii) if the first stain is the first histological stain then the second stain is either the second immunohistochemical stain or the second DNA ploidy stain; whereas (iii) if the first stain is the first DNA ploidy stain then the second stain is either the second immunohistochemical stain or the second histological stain; and (b) using a spectral data collection device for collecting spectral data from the biological sample, the spectral data collection device and the N stains are selected such that a spectral component associated with each of the N stains is collectable.
Owner:APPLIED SPECTRAL IMAGING
Method for simultaneous detection of multiple fluorophores for in situ hybridization and multicolor chromosome painting and banding
InactiveUS6066459AImprove throughputShorten the timeRaman/scattering spectroscopyRadiation pyrometryChromosome paintingFluorophore
A spectral imaging method for simultaneous detection of multiple fluorophores aimed at detecting and analyzing fluorescent in situ hybridizations employing numerous chromosome paints and / or loci specific probes each labeled with a different fluorophore or a combination of fluorophores for color karyotyping, and at multicolor chromosome banding, wherein each chromosome acquires a specifying banding pattern, which pattern is established using groups of chromosome fragments labeled with various fluorophore or combinations of fluorophores.
Owner:APPLIED SPECTRAL IMAGING
Spectroscopic apparatus
InactiveUS20050046837A1Small sizeLarge angular dispersionRadiation pyrometryInterferometric spectrometryBandpass filteringLight beam
A spectroscopic apparatus which is compact in size and performs high-precision light-splitting with a large angular dispersion. An optical input-processing section outputs a filtered transmitted light, using a bandpass filter that transmits only wavelength bands at one period of an input light, and collects the filtered transmitted light to generate a collected beam. An optic includes a first reflection surface and a second reflection surface which are high but asymmetric in reflectivity, and causes the collected beam incident thereon to undergo multiple reflections within an inner region between the first reflection surface and the second reflection surface, to thereby cause split beams to be emitted via the second reflection surface. A received light-processing section performs received light processing of the beams emitted from the optic. A control section variably controls at least one of a filter characteristic of the bandpass filter and an optical length through the optic.
Owner:FUJITSU LTD
Fabry-Perot tunable filter using a bonded pair of transparent substrates
InactiveUS20070242920A1Increase working voltageSpectrum generation using multiple reflectionCoupling light guidesOptical couplingWavelength range
A tunable Fabry-Perot filter (8, 118, 218, 318, 418) includes substrates (10, 12) with parallel generally planar facing principal surfaces (14, 16) including spaced apart facing reflective surface regions (20, 22) that are at least partially reflective over a wavelength range and define an optical gap (Gopt) therebetween. At least one substrate of the pair of substrates is light transmissive over the selected wavelength range to enable optical coupling with the optical gap. Electrodes (24, 26) are disposed on the facing principal surfaces of the substrates. The electrodes on the facing principal surfaces of the substrates are define an electrode gap therebetween such that electrical biasing of the electrodes simultaneously modifies the optical and electrode gaps.
Owner:XEROX CORP
Spectroscopic apparatus
InactiveUS7304798B2Small sizeHigh-precision light-splittingRadiation pyrometryInterferometric spectrometryBandpass filteringLight beam
A spectroscopic apparatus which is compact in size and performs high-precision light-splitting with a large angular dispersion. An optical input-processing section outputs a filtered transmitted light, using a bandpass filter that transmits only wavelength bands at one period of an input light, and collects the filtered transmitted light to generate a collected beam. An optic includes a first reflection surface and a second reflection surface which are high but asymmetric in reflectivity, and causes the collected beam incident thereon to undergo multiple reflections within an inner region between the first reflection surface and the second reflection surface, to thereby cause split beams to be emitted via the second reflection surface. A received light-processing section performs received light processing of the beams emitted from the optic. A control section variably controls at least one of a filter characteristic of the bandpass filter and an optical length through the optic.
Owner:FUJITSU LTD
Tunable optical instruments
InactiveUS7002697B2Diffusing elementsSpectrum generation using multiple reflectionAmorphous siliconLight beam
An optical instrument including: a thermo-optically tunable, thin film, free-space interference filter having a tunable passband which functions as a wavelength selector, the filter including a sequence of alternating layers of amorphous silicon and a dielectric material deposited one on top of the other and forming a Fabry-Perot cavity structure having: a first multi-layer thin film interference structure forming a first mirror; a thin-film spacer layer deposited on top of the first multi-layer interference structure, the thin-film spacer layer made of amorphous silicon; and a second multi-layer thin film interference structure deposited on top of the thin-film spacer layer and forming a second mirror; a lens for coupling an optical beam into the filter; an optical detector for receiving the optical beam after the optical beam has interacted with the interference filter; and circuitry for heating the thermo-optically tunable interference filter to control a location of the passband.
Owner:II VI DELAWARE INC +1
Apparatus and method for cross axis parallel spectroscopy
ActiveUS20090273777A1Cascading convenienceImprove dynamic rangeRadiation pyrometryInterferometric spectrometrySpectroscopyElectromagnetic radiation
Owner:THE GENERAL HOSPITAL CORP
Spectrometry system with diffuser
ActiveUS20150292948A1Reduce crosstalkShorten the lengthInterferometric spectrometryMaterial analysis by optical meansSensor arrayImage resolution
Owner:VERIFOOD
Chip-size wavelength detector
ActiveUS20060039009A1Good wavelength selectivityHigh selectivityOptical measurementsRadiation pyrometryChip sizeLength wave
A chip-size wavelength detector includes a film with laterally varying transmission properties and a position-sensitive detector. The film transmits a different wavelength as a function of lateral position across the film. The position of a spot of light transmitted through the film will shift, depending on the wavelength of the light. The shift is measured by the position-sensitive detector.
Owner:XEROX CORP
Color display of chromosomes or portions of chromosomes
InactiveUS6055325AMore informationHigh sample throughputRaman/scattering spectroscopyInterferometric spectrometryFluorophoreComputer science
A color display comprising an image of all chromosomes or portions of chromosomes of a cell, each of the chromosomes or portions of chromosomes being painted with a different fluorophore or a combination of fluorophores, the image presenting the chromosomes or portions of chromosomes in different distinctive colors, wherein each of the chromosomes or portions of chromosomes is associated with one of the different distinctive colors.
Owner:APPLIED SPECTRAL IMAGING
Structure of a structure release and a method for manufacturing the same
InactiveUS20060220160A1Effective structureLong life cycleStatic indicating devicesSolid-state devicesEngineeringElectrode
A structure of a structure release and a manufacturing method are provided. The structure and manufacturing method are adapted for an interference display cell. The structure of the interference display cell includes a first electrode, a second electrode and at least one supporter. The second electrode has at least one hole and is arranged about parallel with the first electrode. The supporter is located between the first electrode and the second electrode and a cavity is formed. In the release etch process of manufacturing the structure, an etchant can pass through the hole to etch a sacrificial layer between the first and the second electrodes to form the cavity; therefore, the time needed for the process becomes shorter.
Owner:SNAPTRACK
Spectral bio-imaging of the eye
InactiveUS6419361B2Improve throughputEnhances spectral signatureRaman/scattering spectroscopyRadiation pyrometryBio imagingSpectral signature
A spectral bio-imaging method for enhancing pathologic, physiologic, metabolic and health related spectral signatures of an eye tissue, the method comprising the steps of (a) providing an optical device for eye inspection being optically connected to a spectral imager; (b) illuminating the eye tissue with light via the iris, viewing the eye tissue through the optical device and spectral imager and obtaining a spectrum of light for each pixel of the eye tissue; and (c) attributing each of the pixels a color according to its spectral signature, thereby providing an image enhancing the spectral signatures of the eye tissue.
Owner:APPLIED SPECTRAL IMAGING
Integrated spectroscopy system
ActiveUS7061618B2Improve performanceSmall footprintTelevision system detailsRadiation pyrometryAudio power amplifierSpectroscopy
Owner:EXCELITAS TECH
Method and apparatus for a downhole spectrometer based on electronically tunable optical filters
Owner:BAKER HUGHES HLDG LLC
Method and apparatus for CMOS imagers and spectroscopy
InactiveUS20070070347A1Improve spatial resolutionIncrease speedRadiation pyrometryInterferometric spectrometryCMOSAnalyte
A miniaturized fluidic spectrometer comprises a light source, a fluidic circuit having a plurality of flow channels through which an analyte flows, and a proximity detector array for detecting light from the light source transmitted through the fluidic circuit. Where the light source is broadband, a variable filter is disposed between the detector array and the fluidic circuit so that each position of the detector array is provided with a different wavelength response. The fluidic circuit is disposed in an optimized Fabry-Perot etalon. The fluidic circuit is defined in an elastomeric material and includes means for tuning the Fabry-Perot etalon by pressurization of flow channels in the elastomeric material.
Owner:CALIFORNIA INST OF TECH
Methods, arrangements and systems for obtaining information associated with a sample using optical microscopy
ActiveUS20090323056A1Raman/scattering spectroscopyRadiation pyrometryAcoustic waveConfocal microscopy
Exemplary embodiments of methods, arrangements and systems for obtaining information about a sample can be provided. For example, in one exemplary embodiment, it is possible to receive a first electro-magnetic radiation from a sample which is based on a second electro-magnetic radiation forwarded to the sample. The first electro-magnetic radiation may have a first frequency and the second electro-magnetic radiation may have a second frequency which is different from the first frequency. The difference between the first and second frequencies can be based on an acoustic wave inside the sample related to at least one characteristic of the sample. Further, it is possible to receive at least a portion of the first electromagnetic radiation and separate it into a particular finite number (N) of frequency component radiations. In addition, it is possible to receive a particular energy of more than 1 / N of energy of the third electro-magnetic radiation, and generate information associated with the sample. Certain exemplary embodiments of the present invention are capable of obtaining information associated with a sample, particularly its mechanical properties, non-contact using electromagnetic radiation.
Owner:THE GENERAL HOSPITAL CORP
Separable modulator
InactiveUS20090080060A1Static indicating devicesNanoopticsEngineeringElectrical and Electronics engineering
Owner:SNAPTRACK
Using position-sensitive detectors for wavelength determination
Owner:XEROX CORP
Terahertz time domain and frequency domain spectroscopy
InactiveUS20090206263A1Improve time resolutionWide rangeRadiation pyrometryInterferometric spectrometryTime domainTemporal resolution
A terahertz spectrometer having a wider range of terahertz radiation source, high temporal resolution of scanning (<0.0.099 μm or ˜0.3 pico second) over a wider range of scanning (up to ˜100 pico seconds). Also disclosed are exemplary applications of the spectrometer in biomedical, biological, pharmaceutical, and security areas.
Owner:APPLIED RES & PHOTONICS
Analyte stages including tunable resonant cavities and Raman signal-enhancing structures
An analyte stage for use in a spectroscopy system includes a tunable resonant cavity that is capable of resonating electromagnetic radiation having wavelengths less than about 10,000 nanometers, a substrate at least partially disposed within the cavity, and a Raman signal-enhancing structure at least partially disposed within the tunable resonant cavity. A spectroscopy system includes such an analyte stage, a radiation source, and a radiation detector. Methods for performing Raman spectroscopy include using such analyte stages and systems to tune a resonant cavity to resonate Raman scattered radiation that is scattered by an analyte.
Owner:HEWLETT PACKARD DEV CO LP
Optical spectroscopy incorporating a vertical cavity surface emitting laser (VCSEL)
InactiveUS20050073690A1Substantial costSubstantial heatOptical measurementsRadiation pyrometryVertical-cavity surface-emitting laserSpectroscopy
A vertical cavity surface-emitting laser (VCSEL) package useful in interferometry. The present invention comprises methods and apparatuses that allow use of multimode VCSELS, and that provide for wavelength control and stability. The present invention contemplates the use of a defined response element, such as an etalon, in combination with control of the operating environment of the VCSEL to monitor and control the output wavelength of the VCSEL.
Owner:INLIGHT SOLUTIONS
Leak Detection and Identification System
InactiveUS20100211333A1High sensitivityLight weightFlow propertiesMaterial analysis by optical meansBandpass filteringMicrobolometer
A leak detection and identification system a Fabry-Perot etalon, an imaging lens, a microbolometer camera, and a computer for spectral and image data post-processing, wherein the data peaks are deconvoluted for use thus avoiding the need for bandpass filters.
Owner:INTEGRATED PROCESS RESOURCES
Spectral bio-imaging data for cell classification using internal reference
InactiveUS6690817B1Improve throughputReduced measurement timeRaman/scattering spectroscopyInterferometric spectrometrySpectral vectorConstant component
A method of spectral-morphometric analysis of biological samples, the biological samples including substantially constant components and suspected variable components, the method is effected by following the steps of (a) using a spectral data collection device for collecting spectral data of picture elements of the biological samples; (b) defining a spectral vector associated with picture elements representing a constant component of at least one of the biological samples; (c) using the spectral vector for defining a correcting function being selected such that when operated on spectral vectors associated with picture elements representing other constant components, spectral vectors of the other constant components are modified to substantially resemble the spectral vector; (d) operating the correcting function on spectral vectors associated with at least the variable components for obtaining corrected spectral vectors thereof; and (e) classifying the corrected spectral vectors into classification groups.
Owner:APPLIED SPECTRAL IMAGING
Method for remote sensing analysis be decorrelation statistical analysis and hardware therefor
InactiveUS6018587AHigh sensitivitySmall data amountRaman/scattering spectroscopyRadiation pyrometryStatistical analysisPrincipal component analysis
A method for remote scenes classification comprising the steps of (a) preparing a reference template for classification of the remote scenes via (i) classifying a set of reference scenes via a conventional classification technique for obtaining a set of preclassified reference scenes; (ii) using a first spectral imager for measuring a spectral cube of the preclassified reference scenes; (iii) employing a principal component analysis for extracting the spectral cube for decorrelated spectral data characterizing the reference scenes; and (vi) using at least a part of the decorrelated spectral data for the preparation of the reference template for remote scenes classification; (b) using a second spectral imager for measuring a spectral cube of analyzed remote scenes, such that a spectrum of each pixel in the remote scenes is obtained; (c) employing a decorrelation statistical method for extracting decorrelated spectral data characterizing the pixels; and (d) comparing at least a part of the decorrelated spectral data extracted from the pixels of the remote scenes with the reference template.
Owner:APPLIED SPECTRAL IMAGING
Light source for a downhole spectrometer
ActiveUS20070013911A1Material analysis by optical meansSpectrum generation using multiple reflectionAPI gravityGas oil ratio
The present invention provides an apparatus and method for high resolution spectroscopy using a narrow light beam source such as a superluminescent diode (SLD) and a tunable optical filter (TOF) for analyzing a formation fluid sample downhole and at the surface to determine formation fluid parameters. The SLD and TOF have a matching etendue. The analysis comprises determination of gas oil ratio, API gravity and various other fluid parameters which can be estimated after developing correlations to a training set of samples using a neural network or a chemometric equation.
Owner:BAKER HUGHES INC
Fiber optic sensing device for measuring a physical parameter
ActiveUS20050046862A1Improve accuracyImprove stabilityPhotometry using reference valueRadiation pyrometryFiberFrequency spectrum
A fiber optic sensing device uses a Fabry-Perot cavity to sense a physical parameter. The cavity modulates the incident polychromatic light. The modulated light is recorded by an optical spectrometer means. The spectrum is analyzed in a signal processing unit which normalizes the spectrum and determines the phase of the modulated signal. The phase, accumulated over whole range of wavelengths, has been used for identification of the physical parameter using a look-up-table. The cavity, the polychromatic light source and the spectroscope means are connected by fiber optic means.
Owner:PHOTON CONTROL INC
Spectral characteristic obtaining apparatus, image evaluation apparatus and image forming apparatus
InactiveUS20110299104A1Digitally marking record carriersRadiation pyrometrySensor arrayLight irradiation
A spectral characteristic obtaining apparatus including a light irradiation unit configured to emit light onto a reading object; a spectroscopic unit configured to separate at least a part of diffused reflected light from the light emitted onto the reading object by the light irradiation unit into a spectrum; and a light receiving unit configured to receive the diffused reflected light separated into the spectrum by the spectroscopic unit and to obtain a spectral characteristic. In at least one example embodiment, the light receiving unit is configured to be a spectroscopic sensor array including plural spectroscopic sensors arranged in a direction, and the spectroscopic sensors include a predetermined number of pixels arranged in the direction to receive lights with different spectral characteristics from each other.
Owner:RICOH KK
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