Utilizing A Spectrometer Patents (Class 356/326)
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Patent number: 8525990Abstract: Fiber optic probe scatterometers for spectroscopy measurements are disclosed. An example device includes an optically transparent illumination tube, an opaque tube, an inner surface of the opaque tube being adjacent an outer surface of the illumination tube and the illumination tube being disposed within the opaque tube, and an optical fiber disposed within and spaced a first distance from the illumination tube, wherein the opaque tube is to be coupled to a spectrometer and an illumination source to provide a light signal along the illumination tube and to collect a scattered light signal via the optical fiber for the spectrometer.Type: GrantFiled: March 9, 2012Date of Patent: September 3, 2013Assignee: The Boeing CompanyInventor: Stephen K. Wilcken
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Publication number: 20130222800Abstract: An optical measurement apparatus is an optical measurement apparatus that performs spectrometry on returned light reflected or scattered by a biological tissue and obtains a characteristic value of the biological tissue, and includes a probe having: an irradiation fiber that propagates light supplied from a proximal end thereof and emits the light from a distal end thereof; and a plurality of light-receiving fibers, each of which propagates light entering from a distal end thereof and outputs the light from a proximal end thereof, and the probe has a light-shielding member expandable in a radial direction of the probe and provided at a position at which the light-shielding member forms a light-shielded region around a distal-end surface of the probe on a surface including the distal-end surface of the probe upon expansion of the light-shielding member.Type: ApplicationFiled: February 5, 2013Publication date: August 29, 2013Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventor: OLYMPUS MEDICAL SYSTEMS CORP.
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Publication number: 20130224872Abstract: The present disclosure relates to a gas sensor, including: a gas collecting chamber including: (a) a nanoporous wall including alumina, on a portion of the gas collecting chamber in the near vicinity of the solid propellant fuel; a micro pump attached to the gas collecting chamber; and a gas analysis device connected to the gas collecting chamber. The gas analysis device measures both type and concentration of gases collected in the gas collecting chamber via the nanoporous wall, the gases measured being selected from the group consisting of CO, CO2, NO, N2O, NO2 and combinations thereof. The present disclosure also relates to a method of sensing propellant degradation in solid fuel and a method of using a gas collecting chamber to sense such degradation.Type: ApplicationFiled: February 27, 2012Publication date: August 29, 2013Applicant: United States of America as represented by the Secretary of the ArmyInventors: Christina L. Brantley, Eugene Edwards, Paul B. Ruffin, Fang Luo
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Patent number: 8520204Abstract: A Dyson imaging spectrometer includes an entry port extending in a direction X, an exit port, a diffraction grating including a set of lines on a concave support, an optical system including a lens, the lens including a plane first face and a convex second face, the convex face of the lens and the concave face of the diffraction grating being concentric, the optical system being adapted to receive an incident light beam coming from the entry port and to direct it toward the diffraction grating, to receive a beam diffracted by the diffraction grating, and to form a spectral image of the diffracted beam in a plane of the exit port, the spectral image being adapted to be spatially resolved in an extension direction X? of the image of the entry port. The diffraction grating includes a set of non-parallel and non-equidistant lines and/or the support of diffraction grating is aspherical in order to form an image of the entry port in the exit plane of improved image quality and of very low distortion.Type: GrantFiled: November 2, 2009Date of Patent: August 27, 2013Assignee: Horiba Jobin Yvon SASInventor: Frederic Desserouer
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Patent number: 8520189Abstract: A method includes directing a beam of radiation along an optical axis toward a workpiece support, measuring a spectrum of the beam at a first time to obtain a first profile, measuring the spectrum of the beam at a second time to obtain a second profile, determining a spectral difference between the two profiles, and adjusting a position of the workpiece support along the optical axis based on the difference. A different aspect involves an apparatus having a workpiece support, beam directing structure that directs a beam of radiation along an optical axis toward the workpiece support, spectrum measuring structure that measures a spectrum of the beam at first and second times to obtain respective first and second profiles, processing structure that determines a difference between the two profiles, and support adjusting structure that adjusts a position of the workpiece support along the optical axis based on the difference.Type: GrantFiled: May 3, 2010Date of Patent: August 27, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chang-Tsun Hsieh, Fu-Jye Liang, Tzung-Chi Fu, Li-Jiu Chen, Chih-Ming Ke
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Publication number: 20130215416Abstract: A spectrometer comprising: a source emitting an electromagnetic radiation, a selection device configured for selecting a monochromatic radiation based on the electromagnetic radiation, a focusing device configured for defining a focusing point associated with a wavelength of the electromagnetic radiation emitted by the source and configured for displacing said focusing point with respect to an input of the selection device, a vessel containing a sample intended to receive the monochromatic radiation, and an analyzer of a radiation transmitted or emitted by the sample.Type: ApplicationFiled: February 20, 2013Publication date: August 22, 2013Applicant: BIO-LOGICInventor: BIO-LOGIC
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Patent number: 8514393Abstract: Disclosed herein are a system and corresponding method for sensing terahertz radiation. The system collects terahertz radiation scattered from a target and upconverts the collected radiation to optical frequencies. A frequency-domain spectrometer senses spectral components of the upconverted signal in parallel to produce a spectroscopic measurement of the entire band of interest in a single shot. Because the sensing system can do single-shot measurements, it can sense moving targets, unlike sensing systems that use serial detection, which can only be used to sense stationary objects. As a result, the sensing systems and methods disclosed herein may be used for real-time imaging, including detection of concealed weapons, medical imaging, and hyperspectral imaging.Type: GrantFiled: January 28, 2011Date of Patent: August 20, 2013Assignee: Massachusetts Institute of TechnologyInventors: Mohammad Jalal Khan, Jerry C. Chen, Sumanth Kaushik
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Patent number: 8508731Abstract: A spectrometer capable of eliminating side-tail effects includes a body and an input section, a diffraction grating, an image sensor unit and a wave-guiding device, which are mounted in the body. The input section receives a first optical signal and outputs a second optical signal travelling along a first light path. The diffraction grating receives the second optical signal and separates the second optical signal into a plurality of spectrum components, including a specific spectrum component travelling along a second light path. The image sensor unit receives the specific spectrum component. The wave-guiding device includes first and second reflective surfaces opposite to each other and limits the first light path and the second light path between them to guide the second optical signal and the specific spectrum component. The first and second reflective surfaces are separated from a light receiving surface of the image sensor unit by a predetermined gap.Type: GrantFiled: January 10, 2011Date of Patent: August 13, 2013Assignee: OTO Photonics, Inc.Inventor: Cheng-Hao Ko
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Patent number: 8508741Abstract: An apparatus and method for estimating a parameter of interest in a downhole fluid using fluid testing module. The fluid testing module may include: a substrate comprising at least one microconduit, and a sensor. The sensor may be disposed within the at least one microconduit or external. The apparatus may include a fluid transporter for moving fluid within the microconduit. The method includes estimating a parameter of interest using the fluid testing module.Type: GrantFiled: April 11, 2011Date of Patent: August 13, 2013Assignee: Baker Hughes IncorporatedInventor: Sunil Kumar
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Patent number: 8508730Abstract: System(s), apparatus(es), and method(s) are provided for control of quality of light emitted from a group of solid-state light (SSL) sources that are part of an illumination fixture. The control is based at least in part on regulation of the spectral power distribution (SPD) of the light to match a SPD of a reference light source. A spectroscopic analyzer collects electromagnetic (EM) radiation emitted from the group of SSL sources and EM radiation substantially emitted from the reference light source. A first controller analyzes spectroscopic data related to SPDs of the group of SSL sources and the reference light source and, based on the analysis issues a configuration of the group of SSL sources. Implementation of the configuration causes the group of SSL sources to emit EM radiation with a SPD that nearly matches the SPD of the EM radiation substantially emitted from the reference light source.Type: GrantFiled: January 28, 2011Date of Patent: August 13, 2013Assignee: Atmel CorporationInventors: Kevin Hempson, Dilip Sangam
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Patent number: 8508739Abstract: A gas concentration measurement device which utilizes a TDLAS measurement method, and in which the phase-sensitive detection can be performed by digital processing using an integer-arithmetic device, is provided. In the gas concentration measurement device according to the present invention, AC components corresponding to integer multiples of a modulation frequency f contained in an input signal are removed by taking a moving average of data obtained from an output signal of a multiplier 62 for a period of time corresponding to one cycle of the modulation frequency f . As a result, a DC component in the output signal of a digital filter 63 relatively increases, making it easier to extract the DC component by a digital low-pass filter 64, so that a sufficiently accurate phase-sensitive detection can be made even if a digital processing based on integer arithmetic is used.Type: GrantFiled: July 22, 2011Date of Patent: August 13, 2013Assignee: Shimadzu CorporationInventors: Yousuke Hoshino, Kenji Takubo, Naoji Moriya
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Patent number: 8502974Abstract: An apparatus for placement on or in a body of water for hyperspectral imaging of material in the water comprises an artificial light source and a hyperspectral imager. These are arranged so that in use light exits the apparatus beneath the surface of the water and is reflected by said material before re-entering the apparatus beneath the surface of the water and entering the hyperspectral imager. The hyperspectral imager is adapted to produce hyperspectral image data having at least two spatial dimensions.Type: GrantFiled: May 21, 2009Date of Patent: August 6, 2013Assignee: Ecotone ASInventor: Geir Johnsen
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Patent number: 8502977Abstract: A spectroscopic system may include: a spectroscopic scatterometer; an angular-resolved spectrometer; and a fiber bundle having a two-dimensional input surface and a one-dimensional output surface.Type: GrantFiled: June 1, 2010Date of Patent: August 6, 2013Assignee: KLA-Tencor CorporationInventor: Ivan Maleev
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Publication number: 20130194571Abstract: A remote sensor element for spectrographic measurements employs a monolithic assembly of one or two fiber optics to two optical elements separated by a supporting structure to allow the flow of gases or particulates therebetween. In a preferred embodiment, the sensor element components are fused ceramic to resist high temperatures and failure from large temperature changes.Type: ApplicationFiled: February 1, 2012Publication date: August 1, 2013Inventor: Scott Thomas Sanders
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Patent number: 8493561Abstract: A device for on-site measurement of concentration of uranium in high temperature molten salts is provided. More particularly, this device can be directly applied to a pyroprocess for reusing spent nuclear fuel and determine concentration of uranium 3+ and 4+ chemical species using ultraviolet-visible light absorption spectrometry. The device includes first and second optical waveguides submerged in molten salts including uranium through a port formed at an upper side of a pyrochemical process apparatus; a lengthwise driver installed at the port to be operated to adjust a distance between the optical waveguides; a light source for supplying light to the second optical waveguide as any one of the optical waveguides; and a spectrometer connected to the first optical waveguide as the other one of the optical waveguides to analyze the light emitted from the second optical waveguide and introduced through the first optical waveguide via the molten salts.Type: GrantFiled: December 23, 2010Date of Patent: July 23, 2013Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.Inventors: Yong Joon Park, Sang Eun Bae, Young-Hwan Cho, Kyuseok Song
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Publication number: 20130176565Abstract: A beam reformatter to receive and split a beam into a plurality of beam portions, and further distribute and propagate two or more of the plurality of beam portions in substantially the same direction to create a reformatted composite beam, wherein the plurality of beam portions each contain the same spatial and spectral information as the received beam.Type: ApplicationFiled: January 18, 2013Publication date: July 11, 2013Applicant: TORNADO MEDICAL SYSTEMS, INC.Inventor: Tornado Medical Systems, Inc.
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Publication number: 20130176564Abstract: A dispersive element is disclosed which is designed to receive incident light (1) and disperse the incident light (1) into multiple spatially separated wavelengths of light. The dispersive body (DB) comprises a collimation cavity (COLL) to collimate the incident light (1), at least two optical interfaces (PRIS) to receive and disperse the collimated light (2) and a collection cavity (CLCT) to collect the dispersed light (3) from the at least two dispersive interfaces (op1, op2) and to focus the collected light (4).Type: ApplicationFiled: January 9, 2013Publication date: July 11, 2013Applicant: ams AGInventor: ams AG
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Publication number: 20130176554Abstract: An on-chip integrated nanobeam cavity array spectrometer (INAS) having an array of waveguide-coupled nanobeam cavities. Waveguide splitters are used to bring the signal from the input waveguide into each cavity. The spectrum of unknown input signal is obtained by collecting signal from each nanobeam cavity in the array.Type: ApplicationFiled: May 9, 2011Publication date: July 11, 2013Inventors: Marko Loncar, Qimin Quan, Parag B. Deotare
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Patent number: 8481942Abstract: A method and apparatus for deriving refinery product property value based on data produced from a globally-calibrated spectrographic analyzer and data from a non-spectrographic analyzer.Type: GrantFiled: April 11, 2011Date of Patent: July 9, 2013Assignee: Tesoro Refining and Marketing CompanyInventor: Daniel C. Mertens
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Publication number: 20130169959Abstract: A system for increasing light collection in a spectrometer includes a detector and a processor. The detector detects zero order diffraction light from a diffractive element of a spectrometer and measures an intensity of the zero order diffraction light. A processor continuously receives the intensity measurement from the detector and automatically adjusts a parameter of the spectrometer until a maximum intensity measurement is received from the detector. A parameter of the spectrometer can include an optical path between an aperture of the spectrometer and a sample, an exposure time of the spectrometer, or an intensity of a light source for the spectrometer. The optical path between an aperture of the spectrometer and a sample can be adjusted by moving an objective lens of the spectrometer with respect to the sample or moving the sample with respect to the spectrometer.Type: ApplicationFiled: July 9, 2012Publication date: July 4, 2013Inventor: Brett Guenther
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Patent number: 8477305Abstract: The spectrometer 1 is provided with a package 2 in which a light guiding portion 7 is provided, a spectroscopic module 3 accommodated inside the package 2, and a support member 29 arranged on an inner wall plane of the package 2 to support the spectroscopic module 3. The spectroscopic module 3 is provided with a body portion 11 for transmitting light made incident from the light guiding portion 7 and a spectroscopic portion 13 for dispersing light passed through the body portion 11 on a predetermined plane of the body portion 11, and the spectroscopic portion 13 is supported by the support member 29 on the predetermined plane in a state of being spaced away from the inner wall plane.Type: GrantFiled: July 7, 2011Date of Patent: July 2, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Katsumi Shibayama, Tomofumi Suzuki, Masashi Ito
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Patent number: 8476574Abstract: A method for improving the analysis of spectral data wherein light is directed through a linearly variable bandpass filter to impinge on a linear array of photodetectors. The ratio of the passband captured by a target detector to the passband captured by adjacent detectors is determined and used to calculate the amount of light to add back to the amount reported by the target detector. The value of the stored information from each target detector is then adjusted by subtracting from that detector what was added to adjacent detectors.Type: GrantFiled: March 31, 2011Date of Patent: July 2, 2013Assignee: Mutoh Industries Ltd.Inventor: Chris Brown
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Patent number: 8477306Abstract: The spectrometer 1 is provided with a package 2 in which a light guiding portion 7 is provided, a spectroscopic module 3 accommodated inside the package 2, and a support member 29 arranged on an inner wall plane of the package 2 to support the spectroscopic module 3. The spectroscopic module 3 is provided with a body portion 11 for transmitting light made incident from the light guiding portion 7 and a spectroscopic portion 13 for dispersing light passed through the body portion 11 on a predetermined plane of the body portion 11, and the spectroscopic portion 13 is supported by the support member 29 on the predetermined plane in a state of being spaced away from the inner wall plane.Type: GrantFiled: January 3, 2012Date of Patent: July 2, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Katsumi Shibayama, Tomofumi Suzuki, Masashi Ito
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Patent number: 8472023Abstract: The nitrate-nitrogen concentration in soil is estimated based on the nitrate-nitrogen 200 nm absorption peak. In one embodiment, a device measures the attenuation spectrum of a soil-extractant mixture over a wavelength range that includes wavelengths in the vicinity of the 200 nm absorption peak (the spectral operating range) and then determines the nitrate-nitrogen concentration based on the attenuation spectrum.Type: GrantFiled: May 7, 2010Date of Patent: June 25, 2013Assignee: Solum, Inc.Inventors: Michael John Preiner, Nicholas Carleton Koshnick, Justin Stewart White, John Paul Strachan
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Publication number: 20130155402Abstract: An inline spectroscopic reader having a light source, one or more optics heads, a spectrometer and a data processing system in digital communication with the spectrometer detector. The optics heads include transmission optics providing for the illumination of a target with light from the light source and detection optics providing for the collection of light from the target. Typically, the target is moving with respect to the optics head during spectroscopic interrogation. The spectroscopic reader is thus an inline reader well suited to provide spectrum based production or analytical decision making in real time as the target moves along a production or analysis line. Also disclosed are methods including the steps of illuminating a target with light from a light source; collecting light from the target; obtaining a digitized spectrum with a spectrometer; extracting information content from the digitized spectrum; and basing a contemporaneous process decision upon the information content.Type: ApplicationFiled: August 31, 2011Publication date: June 20, 2013Applicant: Cabot Security Materials, Inc.Inventors: Ian D. Walton, William E. Doering, Michael J. Natan
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Patent number: 8465335Abstract: Large digital displays for entertainment, architectural and advertising displays have interconnected display panels with pluralities of light emitting elements. To solve calibration problems, each of the display panels stores measured luminance and chromaticity data for each of the light emitting elements of the panel. The luminance data is independent of the chromaticity data. A central controller can then perform calibration procedures so that the light emitting elements are matched across the entire display.Type: GrantFiled: August 17, 2012Date of Patent: June 18, 2013Assignee: Barco, Inc.Inventor: Grant Arthur John Elliott
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Publication number: 20130148104Abstract: A system comprises a micro-mirror device including a surface having a plurality of micro-mirrors movable to reflect light incident to the micro-minors in at least a first direction and a second direction, a control circuit configured to arrange the micro-mirrors to project a spatial image using the incident light and to generate spectral content for the formed spatial image, and a spectrometer circuit configured to extract spectral image information from the generated spectral content and provide the spectral image information to the control circuit.Type: ApplicationFiled: December 8, 2011Publication date: June 13, 2013Applicant: Raytheon CompanyInventor: Rigel Quinn Woida-O'Brien
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Patent number: 8462406Abstract: A spectral colorimetric apparatus for detecting a color of an image of a subject, including: an illumination optical system illuminating the subject on a detection surface; a spectral optical system including a spectral element spectrally separating the beam diffused by the subject and a light receiving element array detecting a spectral intensity distribution; and a guiding optical system for guiding a beam diffused by the subject, wherein: the detection surface is parallel to a spectral plane including a principal ray of a beam entering the spectral optical system and a principal ray of a beam spectrally separated; the principal ray of the beam enters the spectral optical system within the spectral plane obliquely to a line joining a center of the light receiving element array with a surface vertex of the spectral element; and a light receiving surface of the light receiving element array is orthogonal to the spectral plane.Type: GrantFiled: April 28, 2010Date of Patent: June 11, 2013Assignee: Canon Kabushiki KaishaInventors: Tokuji Takizawa, Kazumi Kimura, Nobuyuki Tochigi, Masayasu Teramura
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Patent number: 8462981Abstract: Disclosed methods include: acquiring a first sequence of multiple images of a sample, with each image in the first sequence corresponding to a different spectral weighting function; unmixing the first sequence of images into data corresponding to a first set of unmixed images, where each unmixed image in the first set corresponds to a spatial distribution in the sample of a different one of multiple components at a first time; acquiring one or more additional images of the sample and combining the additional images with one or more of the images in the first sequence to form a second sequence of images; unmixing the second sequence of images into data corresponding to a second set of unmixed images; and displaying information about the sample as a function of time based on the data corresponding to the first and second sets of unmixed images.Type: GrantFiled: April 7, 2010Date of Patent: June 11, 2013Assignee: Cambridge Research & Instrumentation, Inc.Inventors: Scott Determan, Peter J. Miller
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Patent number: 8456630Abstract: Methods and systems for enhanced SERS sensing are disclosed, including generating electromagnetic radiation from a fiber laser; coupling the radiation to a SERS sensor comprising: a fiber comprising a first end and a second end, wherein the first end is coupled to the fiber laser and the second end is deposited with one or more metal nanoparticles; an in-line fiber grating integrated into the fiber between the first and the second end; a spectrometer configured to measure a spectrum produced by the in-line fiber grating; and a micro-processor configured to control the fiber laser and the spectrometer; exciting one or more molecules adsorbed on the surface of the one or more metal nanoparticles to generate a Raman signal; coupling the signal into the fiber; separating the signal into its wavelength components with the in-line fiber grating; and measuring the wavelength components with the spectrometer. Other embodiments are described and claimed.Type: GrantFiled: May 6, 2011Date of Patent: June 4, 2013Assignee: PolarOnyx, Inc.Inventor: Shuang Bai
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Publication number: 20130135617Abstract: A transducer includes a source of electromagnetic radiation, a substrate having a plurality of flow through passages and a receiver. The plurality of nanoparticles is disposed on the substrate and includes a material having a dielectric constant being arranged to support a photonically excited Plasmon in response to electromagnetic radiation from the source. The receiver measures the electromagnetic radiation and is disposed in optical communication with the substrate.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Andrew David PRIS, Windsor Paige OSBERG, Radislav Alexandrovich POTYRAILO
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Patent number: 8451442Abstract: Method and apparatus for performing spectroscopy, include the combining of first and second light beams to form a reference beam, focusing the first and second light beams and the reference beam onto a sample, receiving a reflected light beam from the sample at a monochromator, and viewing a predetermined wavelength band of the reflected light beam from the monochromator. Portions of the first and second light beams, which may be visible and IR forms of electromagnetic energy, are heterodyned through a crystal. A monochromator receives a reflection of the reference beam from the sample, and Fourier transformation is performed on the output of the monochromator. The first and second beams of electromagnetic energy can be split to form first and second component beams and the reference beam, all of which are propagated to the sample.Type: GrantFiled: June 18, 2008Date of Patent: May 28, 2013Assignee: Wayne State UniversityInventors: Alexander V. Benderskii, Igor V. Stiopkin, Himali Dilrukshi Jayathilake
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Patent number: 8451438Abstract: An integrating sphere photometer and a measuring method of the same are provided to precisely measure a directional light source. The integrating sphere photometer includes an integrating sphere having a plurality of through-holes, a plurality of photometers disposed at the through-holes, baffles disposed in front of the photometers to be spaced apart therefrom, an auxiliary light source disposed inside the integrating sphere, an auxiliary baffle disposed in front of the auxiliary light source, and a summing unit of output signals of the photometers under the illumination of a light source to be measured disposed in the central area inside the integrating sphere.Type: GrantFiled: August 30, 2012Date of Patent: May 28, 2013Assignee: Korea Research Institute of Standards and ScienceInventors: Seongchong Park, Dong Hoon Lee, Seung Nam Park
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Patent number: 8451443Abstract: A concave reflection type diffraction optical element used for a Rowland type spectrometer, in which: the Rowland type spectrometer detects wavelengths in a range including a wavelength ?1 or more and a wavelength ?2 or less (?1<?2); the concave reflection type diffraction optical element has a diffractive efficiency D(?) at a wavelength ? which shows local maximum and maximum value at a wavelength ?a satisfying, ? 1 ? ? a < 7 ? ? 1 + 3 ? ? 2 10 ; the concave reflection type diffraction optical element includes a reference surface having an anamorphic shape; and the following condition is satisfied: R>r, where R indicates a meridional line curvature radius of the reference surface and r indicates a sagittal line curvature radius thereof.Type: GrantFiled: June 24, 2010Date of Patent: May 28, 2013Assignee: Canon Kabushiki KaishaInventors: Tokuji Takizawa, Kazumi Kimura
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Publication number: 20130128266Abstract: A spectrometer sample head including a housing, at least one source of radiation in the housing, and a flip top sample cell including first and second hinged plates and a window through the first plate with a pane in the window, the pane for receiving a sample thereon. The housing includes a channel for receiving the plates when coupled together for placing the sample in the optical path of the radiation.Type: ApplicationFiled: January 15, 2013Publication date: May 23, 2013Applicant: Spectro, Inc.Inventor: Spectro, Inc.
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Publication number: 20130128267Abstract: A method for calibrating a Fourier domain optical coherence tomography system includes receiving spectral data from an optical detector comprising a linear array of detector elements, each detector element having a position labeled n, wherein detected light was wavelength-dispersed across the linear array of detector elements; determining parameters of a preselected functional relationship between wave number, kn, corresponding to detector element n as a function of optical detector element n based on the spectral data; further receiving subsequent spectral data subsequent to the first-mentioned receiving, wherein detected light was wavelength-dispersed across the linear array of detector elements; converting the subsequent spectral data using the preselected functional relationship between wave number kn and optical detector element n to obtain converted spectral data; and performing an inverse Fourier transform of the converted spectral data to obtain a depth profile.Type: ApplicationFiled: August 2, 2011Publication date: May 23, 2013Applicant: THE JOHNS HOPKINS UNIVERSITYInventors: Jin Kang, Marcin Arkadiusz Balicki, Xuan Liu
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Publication number: 20130093936Abstract: The invention provides an energy dispersion device, spectrograph and method that can be used to evaluate the composition of matter on site without the need for specialized training or expensive equipment. The energy dispersion device or spectrograph can be used with a digital camera or cell phone. A device of the invention includes a stack of single- or double-dispersion diffraction gratings that are rotated about their normal giving rise to a multiplicity of diffraction orders from which meaningful measurements and determinations can be made with respect to the qualitative or quantitative characteristics of matter.Type: ApplicationFiled: August 28, 2012Publication date: April 18, 2013Applicant: SPECTROCLICK, INC.Inventors: Alexander Scheeline, Bui Anh Thu
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Patent number: 8422011Abstract: A spectrometer comprises a detector array and a prism. The prism comprises a first prism element comprising a substantially crystalline crown material, and a second prism element contacting the first prism element, the second prism element comprising a substantially crystalline flint material. The spectrometer further includes optics configured to direct light at least twice through the prism. The prism is configured to disperse light received from the optics at an incident angle therethrough into constituent spectra in visible and infrared wavelength bands that are dispersed from the prism at angles offset from the incident angle. The constituent spectra are directed onto the detector array with approximately equal dispersion across the visible and infrared wavelength bands. Among other things, desirable material selections for the first and second prism elements are also disclosed.Type: GrantFiled: May 11, 2011Date of Patent: April 16, 2013Assignee: Raytheon CompanyInventors: Lacy G. Cook, John F. Silny, I
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Patent number: 8417540Abstract: Systems and methods perform signature extraction from an acquired spectrum of a pharmaceutical. An acquired spectrum of the pharmaceutical is measured using a spectrometer. The acquired spectrum is obtained from the spectrometer using a processor. A system-response function of the spectrometer is removed from the acquired spectrum using the processor. An intensity of the acquired spectrum is normalized to a predetermined scale using the processor. Fluorescence is removed from the acquired spectrum using the processor. Finally, an extracted signature of the pharmaceutical is obtained from the remainder of the acquired spectrum using the processor. If the acquired spectrum of the pharmaceutical is measured by the spectrometer through a container holding the pharmaceutical, a spectrum of the container is removed from the remainder of the acquired spectrum to produce the extracted signature of the pharmaceutical using the processor.Type: GrantFiled: August 21, 2009Date of Patent: April 9, 2013Assignee: Optopo Inc.Inventors: Prasant Potuluri, Ya Xue, Yuting Qi
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Patent number: 8416407Abstract: Various embodiments provide an optical system including an optical spectrometer, a first negative power mirror configured and arranged to receive radiation from a far-field object, a second positive power mirror configured and arranged to receive radiation reflected by the first negative power mirror, and a third positive power mirror configured and arranged to receive radiation reflected by the second positive mirror and to direct the radiation towards an entrance slit of the optical spectrometer.Type: GrantFiled: May 3, 2010Date of Patent: April 9, 2013Assignee: Raytheon CompanyInventor: Lacy G. Cook
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Patent number: 8416509Abstract: An optical apparatus for plasma includes a light collection lens provided to receive optical emission spectrum from plasma, a first aperture stop disposed between the light collection lens and the plasma to block out-focused light, a second aperture stop disposed between the light collection lens and an imaging area of the light collection lens to block in-focused light, and a pinhole disposed at the imaging area of the light collection lens to limit depth of focus.Type: GrantFiled: December 18, 2009Date of Patent: April 9, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: HunJung Yi, Jae-Won Hahn, Seungki Chae, Chang-Hoon Oh
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Patent number: 8411268Abstract: A spectrometer comprises a detector array and a prism. The prism comprises a first prism element comprising a substantially crystalline crown material, and a second prism element contacting the first prism element, the second prism element comprising a substantially crystalline flint material. The spectrometer further includes optics configured to direct light at least twice through the prism. The prism is configured to disperse light received from the optics at an incident angle therethrough into constituent spectra in visible and infrared wavelength bands that are dispersed from the prism at angles offset from the incident angle. The constituent spectra are directed onto the detector array with approximately equal dispersion across the visible and infrared wavelength bands. Among other things, desirable material selections for the first and second prism elements are also disclosed.Type: GrantFiled: October 1, 2010Date of Patent: April 2, 2013Assignee: Raytheon CompanyInventors: Lacy G. Cook, John F. Silny
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Patent number: 8404552Abstract: A microscopic spectrum apparatus for connecting to an image capturing module which is used for converting external image light into electrical signal is disclosed. The microscopic spectrum apparatus includes a microscopic lens module, a spectrum analyzing module and a light beam splitter. The microscopic lens module is used for collecting the external image light to the image capturing module and magnifying the external image. The spectrum analyzing module is arranged at a side of the microscopic lens module. The light beam splitter is arranged between the microscopic lens module and the image capturing module, and is used for directing part of the external image light from the microscopic lens module to the spectrum analyzing module. In addition, a microscopic spectrum apparatus with image capturing capability is also disclosed.Type: GrantFiled: August 12, 2010Date of Patent: March 26, 2013Assignee: Lumos Technology Co., Ltd.Inventor: Chih-Yi Yang
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Patent number: 8405828Abstract: Devices, systems, kits, and methods for detecting and/or identifying a plurality of spectrally labeled bodies well-suited for performing multiplexed assays. By spectrally labeling the beads with materials which generate identifiable spectra, a plurality of beads may be identified within the fluid. Reading of the beads is facilitated by restraining the beads in arrays, and/or using a focused laser.Type: GrantFiled: November 17, 2009Date of Patent: March 26, 2013Assignee: Life Technologies CorporationInventors: Stephen Empedocles, Andrew Watson, Jian Jin
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Patent number: 8406859Abstract: A hyperspectral imaging system having an optical path. The system including an illumination source adapted to output a light beam, the light beam illuminating a target, a dispersing element arranged in the optical path and adapted to separate the light beam into a plurality of wavelengths, a digital micromirror array adapted to tune the plurality of wavelengths into a spectrum, an optical device having a detector and adapted to collect the spectrum reflected from the target and arranged in the optical path and a processor operatively connected to and adapted to control at least one of: the illumination source; the dispersing element; the digital micromirror array; the optical device; and, the detector, the processor further adapted to output a hyperspectral image of the target.Type: GrantFiled: August 10, 2009Date of Patent: March 26, 2013Assignee: Board of Regents, The University of Texas SystemInventors: Karel Zuzak, Jeffrey A. Cadeddu, Rafael Ufret-Vincenty, Robert P. Francis, Edward Livingston
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Patent number: 8395770Abstract: Spectroscopic chemical analysis methods and apparatus are disclosed which employ deep ultraviolet (e.g. in the 200 nm to 300 nm spectral range) electron beam pumped wide bandgap semiconductor lasers, incoherent wide bandgap semiconductor light emitting devices, and hollow cathode metal ion lasers to perform non-contact, non-invasive detection of unknown chemical analytes. These deep ultraviolet sources enable dramatic size, weight and power consumption reductions of chemical analysis instruments. Chemical analysis instruments employed in some embodiments include capillary and gel plane electrophoresis, capillary electrochromatography, high performance liquid chromatography, flow cytometry, flow cells for liquids and aerosols, and surface detection instruments. In some embodiments, Raman spectroscopic detection methods and apparatus use ultra-narrow-band angle tuning filters, acousto-optic tuning filters, and temperature tuned filters to enable ultra-miniature analyzers for chemical identification.Type: GrantFiled: August 21, 2009Date of Patent: March 12, 2013Assignee: Photon SystemsInventors: William F. Hug, Ray D. Reid, Rohit Bhartia
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Patent number: 8390803Abstract: A calibration device 21 according to the present invention is a member used for white calibration of an optical characteristic measuring apparatus 1 for measuring an optical characteristic of a specimen arranged to close a measuring opening and is used together with a spacer 24. Accordingly, such a calibration device 21 can perform more accurate white calibration by preventing formation of an interference pattern by the spacer 24.Type: GrantFiled: November 23, 2010Date of Patent: March 5, 2013Assignee: Konica Minolta Sensing, Inc.Inventors: Shinichi Iida, Wataru Yamaguchi
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Publication number: 20130050697Abstract: A tunable optical filter is disclosed having an input port, a beam translator for translating input and output optical beams, an element having optical power for collimating the translated beam, a reflective wavelength dispersive element, and an output port. The beam translator can include a tiltable MEMS mirror coupled to an angle-to-offset optical element. An output port can be extended into a plurality of egress ports, each receiving a fraction of the scanned optical spectrum. A multi-path scanning optical spectrometer can be used as an optical channel monitor for monitoring performance of a wavelength selective switch, or for other tasks.Type: ApplicationFiled: August 23, 2011Publication date: February 28, 2013Inventors: Paul COLBOURNE, Shane H. Woodside, Oleg Bouevitch
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Patent number: 8383042Abstract: Disclosed herein is a holder for biological sample containers such as well plates. The holder comprises a flat vacuum bed surrounded by a seal. A container is placed within the seal and a vacuum is applied, pressing and flattening the lower surface of the sample container against the flat vacuum bed. Samples in all portions of the container may then be imaged without the need to refocus on each portion of the container. For imaging, a sample in a well can be illuminated by a beam of light arranged so that a part or all of the sample is illuminated by direct rays that have not passed through the well plate. The beam is redirected to other parts of the well if a single illumination does not cover the whole well, so that the sample to be imaged using a series of partial images.Type: GrantFiled: March 30, 2010Date of Patent: February 26, 2013Assignee: Molecular Devices (New Milton) Ltd.Inventor: Yonggang Jiang
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Patent number: 8384895Abstract: A spectrometer sample head including a housing, at least one source of radiation in the housing, and a flip top sample cell. First and second hinged plates each include a window aligned with each other when the plate are coupled together. The housing includes a channel for receiving the plates when coupled together for placing the sample in the optical path of the radiation.Type: GrantFiled: January 20, 2009Date of Patent: February 26, 2013Assignee: Spectro, Inc.Inventors: Scott Albin, Thomas Barraclough, Michael Morkos, Patrick Henning, Eric John Olson, Kevin Keough