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| Number | Title | Issue Date |
| 8049881 | Optical analysis system and methods for operating multivariate optical elements in a normal incidence orientation A method of arranging and utilizing a multivariate optical computing and analysis system includes transmitting light from a light source; reflecting the light from the sample; directing a portion of the light reflected from the sample with a beamsplitter; and arrang... | 11/01/2011 |
| 7920258 | Optical analysis system and elements to isolate spectral region A method of selecting components for a multivariate optical computing and analysis system to isolate a spectral region includes selecting a spectral region of interest; selecting a spectral element with a predetermined transmission characteristic to control a spectr... | 04/05/2011 |
| 7911605 | Multivariate optical elements for optical analysis system A method of developing a multivariate optical element for an optical analysis system includes forming an optically absorptive spectral element having an optically absorptive material, the optically absorptive material being absorbing in a predetermined spectral regi... | 03/22/2011 |
| 7839498 | Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters... | 11/23/2010 |
| 7834999 | Optical analysis system and optical train A multivariate optical computing and analysis system includes a light source configured to radiate a first light along a first ray path; a modulator disposed in the first ray path, the modulator configured to modulate the first light to a desired frequency; a spectr... | 11/16/2010 |
| 7623233 | Optical analysis systems and methods for dynamic, high-speed detection and real-time multivariate optical computing Multivariate optical analysis systems employ multivariate optical elements and utilize multivariate optical computing methods to determine information about a product carried by light reflected from or transmitted through the product. One method of processing and mo... | 11/24/2009 |
| 7428434 | Quantitative broadband absorption and scattering spectroscopy in turbid media by combined frequency-domain and steady state methodologies A technique for measuring broadband near-infrared absorption spectra of turbid media that uses a combination of frequency-domain and steady-state reflectance methods. Most of the wavelength coverage is provided by a white-light steady-state measurement, whereas the ... | 09/23/2008 |
| 7427932 | Compressive sampling and signal inference An optical signal is copressively sampled using an imaging system. The imaging system is created from a plurality of subimaging systems. Each subimaging system comprises a subaperture and a plurality of sensors. The optical signal is collected at each subaperture of... | 09/23/2008 |
| 7426446 | Calibration training for spectrometer An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may ... | 09/16/2008 |
| 7399445 | Chemical sensor A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and... | 07/15/2008 |
| 7368292 | Differential reflection spectroscopy system and method for detecting explosives and other target materials A system and method for identifying explosive or other target materials includes the steps of irradiating a first location and a second location spaced apart from the first location from a sample suspected of including explosives with ultraviolet, visible or infrare... | 05/06/2008 |
| 7366326 | Real-time implementation of field programmable gate arrays (FPGA) design in hyperspectral imaging A Field Programmable Gate Arrays (FPGA) design uses a Coordinate Rotation DIgital Computer (CORDIC) algorithm that can convert a Givens rotation of a vector to a set of shift-add operations. The CORDIC algorithm can be easily implemented in hardware architecture, th... | 04/29/2008 |
| 7351245 | Apparatus and method for dislodging object from throat An apparatus for sucking out an object stuck in a person's throat, comprising hollow first and second bellows elements each having an orifice with a one-way valve and an exit valve, a tube structure comprising first and second legs having free distal ends outside th... | 04/01/2008 |
| 7330305 | Laser scanning confocal microscope with fibre bundle return The invention provides a confocal microscope or endoscope, having a source of coherent light for illuminating a sample, and an imaging optical fibre bundle (82) for receiving return light, whereby the fibre bundle (82) provides a return channel for flu... | 02/12/2008 |
| 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 transmission function. The optical signal transmitted by the mask is detected ... | 10/16/2007 |
| 7283241 | Method and apparatus for a microscope image selector The disclosure generally relates to a multimode imaging apparatus for simultaneously obtaining multiple wavelength-discriminative spectral images of a sample. In one embodiment, the apparatus includes an image selector having a rotator assembly, the rotator assembly... | 10/16/2007 |
| 7280205 | On-chip spectral filtering using CCD array for imaging and spectroscopy A spectral filtering apparatus and method is presented, which enables the functions of hyperspectral imaging to be performed with increased speed, simplicity, and performance that are required for commercial products. The apparatus includes a photosensitive array ha... | 10/09/2007 |
| 7260544 | System and methods for evaluating the appearance of a gemstone Of the “four C's,” cut has historically been the most complex to understand and assess. This application presents a three-dimensional mathematical model to study the interaction of light with a fully faceted, colorless, symmetrical round-brilliant-cut diamond. W... | 08/21/2007 |
| 7248360 | Polychronic laser scanning system and method of use A system for laser scanning provides spectral flexibility needed for the spectroscopic monitoring of highly multiplexed samples, such as cellular and particle assays in whole blood or other suspensions. In accordance with embodiments of the present invention, the sy... | 07/24/2007 |
| 7219038 | Automatic peak identification method The invention described herein details a protocol to improve analysis and peak identification in spectroscopic data. Bayesian methods are used to automatically identify peaks in data sets. After identifying peak shapes, the method tests the hypothesis that a given n... | 05/15/2007 |
| 7161684 | Apparatus for optical system coherence testing The present invention is directed at a coherence test reticle or lithographic plate, and a method for testing the coherence of a laser beam using the test reticle. The quality or coherence of the laser beam is measured by illuminating the test reticle and recording ... | 01/09/2007 |
| 7155354 | Apparatus for and methods of analyzing the spectral signature of a dynamic event A method of analyzing the spectral signature of a point-like dynamic source event in order to approximate the location of the source event within a predetermined field of view is implemented by a spectral analysis system including (i) a data processing system; (ii) ... | 12/26/2006 |
| 7130041 | On-chip spectral filtering using CCD array for imaging and spectroscopy A spectral filtering apparatus and method is presented, which enables the functions of hyperspectral imaging to be performed with increased speed, simplicity, and performance that are required for commercial products. The apparatus includes a photosensitive array ha... | 10/31/2006 |
| 7106435 | Hyperspectral scene generator and method of use A hyperspectral scene generator generates a projected linear scene where the spectral characteristics at each location that forms the scene are dynamically and arbitrarily controllable. The generator can be controlled to generate a projected linear scene including a... | 09/12/2006 |
| 7091487 | Non-dispersive ir measurement of gases using an optical filter A method and apparatus for determining the safety of a gas mixture containing flammable components such as methane together with ethane or other hydrocarbon, together with a diluent gas. The method includes the filtered infrared spectroscopy of the gas mixture in a ... | 08/15/2006 |
| 7039452 | Method and apparatus for Raman imaging of macular pigments A method and apparatus are provided for Raman imaging of carotenoids and related chemical substances in biological tissue, such as macular pigments. The method and apparatus utilize the technique of resonance Raman spectroscopy to produce an image of the levels of c... | 05/02/2006 |
| 7027924 | Detecting natural gas pipeline failures A method for detecting failures in a natural gas returning radiation from the pipeline; determining that there is a failure in the pipeline when the spectral or thermal signature indicates that there is a plume of escaping natural gas from the pipeline emitted from ... | 04/11/2006 |
| 7019828 | Chemical enhancement in surface enhanced raman scattering using lithium salts Briefly, in accordance with one embodiment of the invention, the intensity of the signals from surface enhanced Raman spectroscopy may be increased by using lithium chloride as an enhancer to activate a metallic structure used for surface enhanced Raman spectroscopy... | 03/28/2006 |
| 7019291 | NOx monitor using differential mobility spectrometry System for detection and analysis of gas samples in fieldable real-time Differential Mobility Spectrometry (DMS) chemical sensor system which uses non-radioactive ion source for monitoring and detecting NOx emissions; provides reliable methods for detecting and moni... | 03/28/2006 |
| 7016053 | Image processing type of measuring device, lighting system for the same, lighting system control method, lighting system control program, and a recording medium with the lighting system control program recorded therein Luminous intensity and chromaticity of each luminescent light source are measured for an impressed current value, a mixing ratio of intensities of lights emitted from luminescent light sources required for synthesizing lighting intensity with the preset chromaticity... | 03/21/2006 |
| 7002681 | Spectroscopy system for the detection of chemicals A method of detecting a chemical species at a stand-off distance using a spectroscopy system, the method comprising the steps of providing a modulated light source emitting a first beam of light at a first wavelength incident to the chemical species, the first beam ... | 02/21/2006 |
| 6990369 | Probe using diffuse-reflectance spectroscopy The invention provides a device and method for monitoring inflammation of the epithelium. The device consists of a head region, a handle region and an optical bundle. At least two of the optical fibers in the bundle are utilized as a source of radiation, these two f... | 01/24/2006 |
| 6965793 | Method for Raman chemical imaging of endogenous chemicals to reveal tissue lesion boundaries in tissue Apparatus and methods for spatially resolved Raman detection of molecules indicative of the borders of lesions with normal tissue are disclosed. A region of biological tissue was illuminated with monochromatic light. A Raman shifted light signal is detected from end... | 11/15/2005 |
| 6963399 | Method and apparatus for quantifying an “integrated index” of a material medium An apparatus for and method of calculating an integrated index of a transparent, translucent or opaque material for a desired wavelength range, the method comprising measuring a filtered value of the material as a function of wavelength within the desired wavelength... | 11/08/2005 |
| 6958131 | Optical sensor and optical process for the characterization of a chemical and/or bio-chemical substance The optical sensor contains an optical waveguide (1) with a substrate (104), waveguiding material (105), a cover medium (106) and a waveguide grating structure (101-103). By means of a light source (2), light can be emitted ... | 10/25/2005 |
| 6954667 | Method for Raman chemical imaging and characterization of calcification in tissue Apparatus and methods for spatially resolved Raman detection of calcification in tissues are disclosed. A region of soft non-arterial biological tissue is illuminated with monochromatic light. A spatially organized first area of calcified tissue is then detected in ... | 10/11/2005 |
| 6937939 | Soil measuring instrument, soil measurement assisting device and method, recorded medium on which a program is recorded, recorded medium on which data is recorded, application amount controller, application amount determining device, method for them, and farm working determination assisting system A model for determining the type of soil, the water content of a soil, and the soil properties, and a soil measurement data storage portion (60) to store therein measurement data necessary to carry out the model and correlated with specific measurement condit... | 08/30/2005 |
| 6934038 | Method for optical system coherence testing The present invention is directed at a coherence test reticle or lithographic plate, and a method for testing the coherence of a laser beam using the test reticle. The quality or coherence of the laser beam is measured by illuminating the test reticle and the record... | 08/23/2005 |
| 6895370 | Detecting, classifying and localizing minor amounts of an element within a sample of material Minute amounts of material, such as a contaminant, are detected, classified and located using a single procedure that eliminates the need for using complex and sometimes redundant instrumentation setups, multiple (and sometimes overlapping) analytic processes, or bo... | 05/17/2005 |
| 6859764 | Detecting, classifying and localizing minor amounts of an element within a sample of material Minute amounts of material, such as a contaminant, are detected, identified and located using a single procedure that eliminates the need for using complex and sometimes redundant instrumentation setups, multiple (and sometimes overlapping) analytic processes, or bo... | 02/22/2005 |
