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7369229 |
Spectral imaging system
An imaging system and methods for resolving elements of interest through and obscuring environment by removing undesired signals from the intervening, obscuring environment is disclosed. A passive ...
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7369228 |
Compact spectrometer
The present invention is directed to a spectrometer in which the electrical and optical components are connected to one another in a compact construction. A minimal expenditure on assembly and adju...
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7366365 |
Tissue scanning apparatus and method
A system for multispectral confocal mapping of a tissue, comprising: a light source; an optical fiber having an aperture providing a confocal pinhole, a scanner being free-space coupled to said ape...
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7365845 |
Optical spectrum analyzer
An optical spectrum analyzer measures to-be-measured light while carrying out calibration processing for correcting wavelength information of spectrum data of the to-be-measured light by a waveleng...
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7365843 |
Spectral photometer and associated measuring head
A spectral photometer intended for integration purposes includes a measurement head equipped with illumination arrangement including at least one light source for the illumination at an angle of in...
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7362434 |
Optical switch
A highly reliable optical switch which can output (switch) accurately to an optical fiber for output without being affected by a change in an environment and a change due to an elapsed time is prov...
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7362433 |
Absorbance reader apparatus, absorbance reader control method, and absorbance calculation program
The absorbance of samples in a number of wells on a microchamber array is efficiently read in a short period of time. The microchamber array is simultaneously irradiated with monochromatic light. W...
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7361601 |
Chemical mechanical polish process and method for improving accuracy of determining polish endpoint thereof
A method for improving accuracy of determining polish endpoint of chemical mechanical polish (CMP) process is provided. The method is performed before the CMP process. First, a test wafer with a to...
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7359051 |
Multiple-wavelength spectroscopic apparatus
In a multi-wavelength spectroscopic apparatus using diffraction gratings, a first diffraction grating is a diffraction grating with diffraction efficiencies of p-polarized light and s-polarized lig...
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7359050 |
Compact triple pass hyperspectral imager
A compact, triple pass hyperspectral imager (spectrometer). The hyperspectral imager (imaging system) of this invention includes an optical sub-system, a reflective slit element, a reflective dispe...
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7359044 |
Method and apparatus for inspecting pattern defects
A method of inspecting pattern defects can detect target defects in various processes stably by reducing erroneous detection of grains and morphology and decreasing the influence of an intensity no...
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7355705 |
Using a fixed-frequency oscillation in a dispersive spectrometer to measure scene inhomogeneity
A method for measuring scene inhomogeneity includes the steps of directing radiance of a scene into a dispersive spectrometer, and changing the field-of-view (FOV) of the spectrometer, while direct...
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7345760 |
Grating monochromator/spectrograph
A monochromator for use in a spectrograph admits light from an aperture to a primary reflector (preferably an off-axis parabolic mirror) which collimates the input light with low aberration and dir...
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7342659 |
Cross-dispersed spectrometer in a spectral domain optical coherence tomography system
A spectral-domain optical coherence tomography system using a cross-dispersed spectrometer is disclosed. The interfered optical signal is dispersed by a grating into several orders of diffraction, ...
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7342658 |
Programmable spectral imaging system
An imaging apparatus for obtaining spectral image data from an object that includes: a) a light source; b) an input optics section; c) a programmable spectral filter that conditions the multispectr...
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7339669 |
Device for the analysis of the qualitative composition of gases
A device for the analysis of the qualitative, optionally also the quantitative composition of gases, uses measuring light of known spectral composition that can pass through the gas to be analyzed ...
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7339665 |
Calibration source for calibrating spectroradiometer, calibration method using the same, and calibration system
A spectroradiometer is calibrated by a calibration source including a plurality of monochromatic sources for emitting monochromatic rays having different wavelengths from each other, respectively; ...
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7336357 |
Multi-channel dual phase lock-in optical spectrometer
The development of a multiple-channel dual phase lock-in optical spectrometer (LIOS) is presented, which enables parallel phase-sensitive detection at the output of an optical spectrometer. The lig...
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7336354 |
Spectrophotometer
A spectrophotometer having an optical system for directing a beam of substantially monochromatic excitation light to a liquid sample contained in a well ( 3 ) of a well plate for interaction with t...
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7336353 |
Coding and modulation for hyperspectral imaging
Embodiments of the present invention relate to systems and methods for spectral imaging. In one embodiment, an image of the scene is formed on a coded aperture of a spectrometer. A coded image from...
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7332733 |
System and method to correct for field curvature of multi lens array
Focal plane errors across the field of an array of focusing elements are reduced by using a non-planar correction surface, shaped such that focal points of the focusing elements lie closer to a sin...
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7330258 |
Spectrometer designs
Various embodiments include spectrometers comprising diffraction gratings monolithically integrated with other optical elements. These optical elements may include slits and mirrors. The mirrors an...
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7330257 |
Spectroscope and spectrum laser microscope
An object is to provide a spectroscope and a spectrum laser microscope capable of carrying out sensitivity correction of a multi-channel photodetector with real time. The spectrum laser microscope ...
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7324196 |
Spectral encoder
A spectral encoder for producing spectrally selected images of a radiation field containing multiple spectral components. An imaging spectrograph defines a first optical path that produces from the...
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7324195 |
Planar waveguide based grating device and spectrometer for species-specific wavelength detection
Planar waveguide based grating devices and spectrometers, for species-specific wavelength detection for example, are disclosed. A planar waveguide spectrometer apparatus may have a microfluidic cha...
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7321423 |
Real-time goniospectrophotometer
In accordance with embodiments of the present invention, a goniospectrophotometer is provided for quickly obtaining a goniospectrum using a goniospectrophotometer. In some embodiments, a parabolic ...
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7319990 |
Produce identification and pricing system for checkouts
A produce identification and pricing system and method for a supermarket checkout or other retail outlet where produce is handled. The produce identification and pricing system and method determine...
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7319519 |
Method for the analysis of echelle spectra
A method for the wavelength calibration of echelle spectra, in which the wavelengths are distributed across number of orders is characterised by the steps: recording of a line-rich reference spectr...
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7317525 |
Method for validating a dispensed pharmaceutical
An apparatus for verifying the identity of a dispensed pharmaceutical comprises an analysis unit adapted to determine a property of the dispensed pharmaceutical, an input device adapted to receive ...
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7315371 |
Multi-channel spectrum analyzer
A spectrum analyzer for the simultaneous analysis of electromagnetic radiation delivered to it from either multiple sources or from a linear segment along a source surface, and arranged as either c...
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7315368 |
Spectra generator for test and calibration
A spectra generator having an electrically programmable diffraction grating. There may be a broad band light source that emits light which is diffracted by the grating. Diffracting elements in the ...
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7310581 |
Bulk material analyzer system
A real-time bulk material analyzing system is disclosed for analyzing the elemental characteristics of bulk material passing by the system on a moving conveyor belt. An exemplary embodiment include...
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7304735 |
Broadband wavelength selective filter
An optical filter for the selective attenuation of specific wavelengths of light includes at least one spectrally dispersive element, such as a diffraction grating or prism, in combination with an ...
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7301625 |
Static two-dimensional aperture coding for multimodal multiplex spectroscopy
A class of aperture coded spectrometer is optimized for the spectral characterization of diffuse sources. The instrument achieves high throughput and high spatial resolution by replacing the slit o...
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7292387 |
Methods and systems to enhance multiple wave mixing process
Frequency conversion methods are taught wherein non-collinear phase matching configurations may be implemented in non-linear crystals used in three wave mixing processes such that the frequency con...
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7292337 |
Optical processor using detecting assembly and method using same
An optical processor includes a light source ( 20 ), a grating device ( 23 ), a first lens ( 24 ), a reflector ( 25 ), a second lens ( 26 ), an array of mirror cells ( 28 ), a color wheel ( 29 ), a...
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7289208 |
Low profile spectrometer and Raman analyzer utilizing the same
A spectrometer comprising a collimating element for receiving input light and collimating the same, a dispersive optical element for receiving light from the collimating element and dispersing the ...
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7289206 |
Method and apparatus for detecting embedded rebar within an interaction region of a structure irradiated with laser light
A detection system is used during irradiation of an interaction region of a structure including embedded material with laser light. The detection system includes a collimating lens positioned to re...
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7286225 |
Optical fiber type spectroscope and spectroscope system equipped therewith
A spectroscope includes an optical fiber 218 , a collimator optical system 231 for collimating signal light come out from the optical fiber 218 , a spectroscopic element 233 for dispersing th...
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7286223 |
Method and apparatus for detecting embedded rebar within an interaction region of a structure irradiated with laser light
A detection system is used during irradiation of an interaction region of a structure with laser light. The structure includes embedded material. The detection system includes a focusing lens posit...
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7283233 |
Curved grating spectrometer with very high wavelength resolution
The present invention discloses a system comprising a compact curved grating (CCG) and its associated compact curved grating spectrometer (CCGS) module and a method for making the same. The system ...
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7283231 |
Compressive sampling and signal inference
A transmission mask or cooled aperture is used in spectroscopy to compressively sample an optical signal. The locations of transmissive and opaque elements of the mask are determined by a transmiss...
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7280206 |
Method and apparatus to improve the dynamic range of optical devices using spatial apodization
Devices and methods for processing multi-wavelength light beams and the single-wavelength components of such light beams are disclosed. In accordance with some embodiments, a spectral filter includ...
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7277189 |
Generation of a library of periodic grating diffraction signals
A method of generating a library of simulated-differentiation signals (simulated signals of a periodic grating includes obtaining a measured-diffraction signal (measured signal). Hypothetical param...
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7268869 |
In-situ spectrograph and method of measuring light wavelength characteristics for photolithography
An in-situ spectrograph having a spectrometer module positioned at a reticle plane or at a wafer plane of a photolithography projection system is disclosed. The spectrometer module disperses light ...
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7265831 |
Spectrometric measuring head for harvesting machines and other equipment used in agriculture
A spectrometric measuring head for harvesting machines and other agricultural equipment comprises a housing with a window, in which a light source, a spectrometer arrangement and at least two stand...
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7265830 |
Fourier Transform spectrometer apparatus using multi-element MEMS
A Fourier Transform (FT) spectrometer apparatus uses multi-element MEMS (Micro-Electro-Mechanical-Systems) or D-MEMS (Diffractive Micro-Electro-Mechanical-Systems) devices. A polychromatic light so...
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7265829 |
Reflective optic system for imaging microplate readers
A reflective light imaging system for use in high-throughput screening of samples disposed in multiple-well plates. The system can include a set of mirrors and lenses. The first mirror has a centra...
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7265827 |
Double grating three dimensional spectrograph with multi-directional diffraction
A spectrograph with a first concave spectrographic diffraction grating is positioned to receive light from an input light source. The first concave spectrographic diffraction grating is configured ...
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7265826 |
Method and device for the differential spectrophotometry of non-clear media by means of spectro-temporal imaging in counting mode
According to the invention, to analyse a non-limpid medium, this medium is lit by at least one light pulse, a spectral and temporal transmission image, in counting mode, is acquired from the lit me...
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