Having Plural Wavelengths Patents (Class 356/320)
  • Patent number: 11187655
    Abstract: Systems and methods herein provide low power non-dispersive infrared (NDIR) gas sensors. The gas sensors comprise a thin film plasmonic light source that produces a time modulated parallel light beam at multiple selected wavelengths. The parallel light beam from the light source passes through a gas chamber without using focusing or collimating optical components. The gas sensors are continuously self-calibrated against environmental changes, such as temperatures and relative humidity, and aging. The gas sensors are suitable for use in hazardous environments because their low power and small thermal mass reduces the risk of explosion. The gas sensors can be integrated into conventional mobile device platforms.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: November 30, 2021
    Assignee: SENSERA, INC.
    Inventor: Jaeseok Ryu
  • Patent number: 10586162
    Abstract: A computer implemented method. The method includes identifying, using a processor, a bulk pigment in a target coating, wherein identifying comprises applying a Bayesian process, and identifying, using the processor, at least one refined pigment in the target coating, wherein identifying comprises applying a Bayesian process. The method also includes formulating, using a processor, a formulation of the target coating, wherein formulating comprises applying a Bayesian process, and outputting the formulation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 10, 2020
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Paul M. Beymore
  • Patent number: 10514297
    Abstract: An electronic circuitry of a spectrometer, configured to electrically connect with an optical sensor of the spectrometer, includes a memory unit configured to store a measurement setting, a trigger line configured to transmit at least one trigger signal, and a control unit electrically connected to the trigger line and the memory unit. The control unit is configured to receive the trigger signal from the trigger line so as to instruct the spectrometer to perform a plurality of exposure measurements continuously under the measurement setting, and to save a plurality of spectral data acquired from the exposure measurements into the memory unit. A spectrometer using the electronic circuitry for performing the exposure measurements and a measuring method of the spectrometer are also provided.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: December 24, 2019
    Assignee: OTO PHOTONICS INC.
    Inventors: Meng-Wei Lee, Hsu Feng Cheng, Jan Liang Yeh
  • Patent number: 10444143
    Abstract: Optical multi-channel measurement unit for a process measurement includes first ends for receiving optical radiation from the optical radiation source, and second ends for outputting the optical radiation for illuminating the at least one object. Optical detectors receive optical radiation from at least one measurement channel via at least one optical filter and convert an intensity of the optical radiation to an electrical signal. A movement mechanism causes, for filtering the wavelengths of the optical radiation propagating between detectors and the optical measurement channels through the optical filters, at least one of the following: movement inside at least one optical filter and movement between the filters and the detectors.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 15, 2019
    Assignee: VALMET AUTOMATION OY
    Inventors: Markku Mäntylä, Pekka Suopajärvi, Jussi Tenhunen, Janne Paaso
  • Patent number: 10419703
    Abstract: Aspects relate to a depth sensing system for capturing an image containing depth information of an object. In one embodiment, a depth sensing device for use in conjunction with multiple depth sensing devices for capturing an image containing depth information of an object comprises a near-infrared transmitter comprising a laser capable of producing a near infra-red light beam, a diffractive optical element positioned to receive a light beam emitted from the laser, the diffractive optical element, a collimating lens, and a near-infrared receiver coupled to the transmitter in a relative position, the receiver comprising a sensor assembly capable of producing an image of the received light, the depth sensing device being configured to transmit and receive near infra-red light beams during a time period that is different than any of the other of two or more transmitter-receiver pairs of devices in communication with the depth sensing device.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: September 17, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Sergiu Radu Goma, Kalin Mitkov Atanassov
  • Patent number: 10352853
    Abstract: A measuring device includes: a light source that emits, toward a target part of an object, at least one light pulse group each including light pulses emitted sequentially, a photodetector that detects at least a part of at least one reflected light pulse group and including reflected light pulses sequentially returning from the target part, and a control circuit that controls the light source and the photodetector. The control circuit causes the light source to emit the at least one light pulse group within a first period, causes the photodetector to extract, within the first period, a first component that is a component of light included in at least a part of a leading reflected light pulse of the reflected light pulses, and causes the photodetector to output a first electric signal corresponding to the first component.
    Type: Grant
    Filed: June 24, 2018
    Date of Patent: July 16, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Teruhiro Shiono, Tatsuya Nakamura
  • Patent number: 10247605
    Abstract: A system comprising a calibration light source is described. The system includes a calibration optical fiber coupled to an output of the calibration light source and to an input slit of a spectrometer. The calibration optical fiber transmits light output of the calibration light source to the spectrometer via the slit. An input optical fiber is coupled to the input slit in addition to the calibration optical fiber. The input optical fiber transmits light-under-test to the spectrometer via the slit.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: April 2, 2019
    Assignee: Filmetrics, Inc.
    Inventor: Scott A. Chalmers
  • Patent number: 10222322
    Abstract: A colorimetric analyzer includes a reaction chamber configured to receive a sample and at least one reagent. A measurement cell is operably coupled to the reaction chamber. The colorimetric analyzer has an illumination source configured to emit illumination at a first wavelength during a first absorbance measurement and at a second wavelength during a second absorbance measurement. The colorimetric analyzer also includes an illumination detector spaced from the illumination source such that illumination from the illumination source passes through the measurement cell to the illumination detector. A controller is coupled to the illumination source and the illumination detector. The controller is configured to detect an obstruction of light between the illumination source and the illumination detector based on the first and the second absorbance measurements.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: March 5, 2019
    Assignee: Rosemount Inc.
    Inventors: Calin I. Ciobanu, Hoang M. Nguyen, Jung S. Hwang, Jeffrey L. Lomibao, Behzad Rezvani
  • Patent number: 10139386
    Abstract: A sensor for measuring a concentration of a particular ion, molecule or atom in a fluid includes a sample handling portion for providing at least some of the fluid, a first photo-detection device, and a first light source. The first photo-detection device is configured to measure a power of light incident thereon, and the first light source includes a solid-state light emitting device. The first light source is configured to emit light having a wavelength less than 240 nanometers incident on the fluid provided by the sample handling portion, and the first photo-detection device is configured to receive light having passed through the fluid.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: November 27, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tim Michael Smeeton, Edward Andrew Boardman, Jun Mori
  • Patent number: 9891104
    Abstract: Provided is a spectroscopic detector including: a light source for generating polychromatic light 11; a single diffraction grating 13; an excitation optical system for guiding the light from the light source 11 onto the diffraction grating 13, for selecting one wavelength from the light diffracted by the diffraction grating 13, and for casting the selected wavelength of light into a sample as excitation light; a detection optical system for guiding observation light emitted from the sample irradiated with the excitation light onto the diffraction grating 13 to disperse the observation light; and a photodetector 15 for detecting the observation light dispersed by the detection optical system. By using one diffraction grating 13 in both the excitation optical system and the detection optical system, the number of diffraction gratings is reduced, whereby both the cost reduction and the downsizing of the device are achieved.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: February 13, 2018
    Assignee: SHIMADZU CORPORATION
    Inventor: Hiroyuki Minato
  • Patent number: 9874482
    Abstract: FCIS based-LEMCS designed in this invention accomplishes both of the above proficiencies of measuring the averaged pulse energy of the Pulsed Type Laser Source and calibrating the Commercial Laser Energy Meters, which are traceably to primary level standards, FCIS based-LEMCS contains an integrating sphere having a novel port and an interior design and a series of mechanical choppers having separate Duty Cycles, each of which is rotated by an electrical motor in FCIS based-LEMCS, used for generating a chopped type laser, called as Chopped Type Laser Source, in order to provide the reference and averaged pulse energy for traceable calibration of Commercial Laser Energy Meters.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 23, 2018
    Assignee: TUBITAK (TURKIYE BILIMSEL VE TEKNOLOJIK ARASTIRMA KURUMU)
    Inventors: Oguz Celikel, Ferhat Sametoglu
  • Patent number: 9788730
    Abstract: A non-invasive, optical method and device for the detection of melanoma in skin lesions. The detection of the presence of melanoma is accomplished optically by looking for specific changes (signatures) in the spectrum of optical light elastically scattered off melanoma molecules. Elastic scattering spectroscopy (ESS) converts subcellular morphological changes into scattering spectrum signatures. A melanoma discrimination analysis is performed by illuminating the lesion with a handheld device that also collects a portion of the scattered light, converts it into digital signals, analyzes the requisite spectral signatures, and provides a logical output showing the user the presence (or absence) of melanoma in the subject lesion.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: October 17, 2017
    Assignee: DERMASENSOR, INC.
    Inventors: John Noto, Robert Kerr, Maurice Ferre
  • Patent number: 9557217
    Abstract: An apparatus for optically analyzing a sample may include an imaging subsystem that images the sample, one or more analyzing subsystems that analyze the sample, a temperature control subsystem that controls a temperature of the atmosphere within the apparatus, a gas control subsystem that controls a composition of the atmosphere within the apparatus, and a control module that controls the various subsystems of the apparatus.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 31, 2017
    Assignee: BTI HOLDINGS, INC.
    Inventors: Oleg Zimenkov, Xavier Amouretti, Michael Kontorovich, Ben Norris, Richard N. Sears, Dan J. Venditti, Jr., Christopher Many, Bill Anderson, Ben Knight, James Piette, Ross Piette, Joe Tobey, Brian Ferris
  • Patent number: 9372153
    Abstract: A dryness fraction distribution measuring device, includes: a light-emitting body that illuminates a gas/liquid two-phase flow with light; an environment sensor that measures at least one of temperature or pressure in a gas/liquid two-phase flow; a plurality of photodetecting elements that receive respective lights that have traversed moist steam; a relationship storing portion that stores, for each temperature or pressure, a relationship between an intensity of light that has traversed the gas/liquid two-phase flow and a dryness fraction of the gas/liquid two-phase flow; and a dryness fraction identifying portion that identifies a dryness fraction of the gas/liquid two-phase flow for each position corresponding to the plurality of photodetecting elements, based on the relationships between the measured values for the detected light intensities of the lights detected by the respective photodetecting elements and the values for the temperatures and pressures measured by the environment sensor.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: June 21, 2016
    Assignee: AZBIL CORPORATION
    Inventors: Giichi Nishino, Yasuhiro Goshoo, Shiko Tanabe
  • Patent number: 9151672
    Abstract: An optical absorption spectrometry system includes first and second light sources, a dichroic beam combiner and a wavelength selective module. The first light source emits first light having first wavelengths within a first wavelength range, and the second light source emits second light having second wavelengths within a second wavelength range different from the first wavelength range. The dichroic beam combiner includes a predetermined first reflectance/transmission transition region, the dichroic beam combiner being configured to transmit a first portion of the first light and to reflect a second portion of the second light to provide combined light. The wavelength selective module is configured to disperse the combined light received at an entrance aperture, to select a sample wavelength range of the dispersed light as sample light, and to output the sample light having the selected sample wavelength range from an exit aperture for illuminating a sample.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: October 6, 2015
    Assignee: Agilent Technologies, Inc.
    Inventors: Michael Bolles, Michael Ron Hammer
  • Patent number: 9118413
    Abstract: An apparatus including: addition circuitry configured to receive simultaneously a probe signal that has passed through a channel having a complex transmission and a reference signal and configured to produce at least: a plurality of weighted additions including an addition of the probe signal and the reference signal with different relative phase rotations between the probe signal and the reference signal for each weighted addition; and processing circuitry configured to use at least two of the plurality of weighted additions to determine a first quantitative parameter for the channel dependent upon the complex transmission for the channel.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 25, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Antti Niskanen, David Bitauld
  • Publication number: 20150144791
    Abstract: A method and analyser for identifying, verifying or otherwise characterising a sample involves emitting electromagnetic radiation in at least one beam at a sample. The electromagnetic radiation includes at least two different wavelengths. A sample detector detects affected electromagnetic radiation resulting from the emitted electromagnetic radiation affected by the sample and provides output representing the detected affected radiation. A processor determines sample coefficients from the output and identifies, verifies or otherwise characterises the sample using the sample coefficients and training coefficients determined from training samples. The coefficients reduce sensitivity to a sample retainer variation and/or are independent of concentration.
    Type: Application
    Filed: June 19, 2013
    Publication date: May 28, 2015
    Inventors: Raymond Andrew Simpkin, Donal Paul Krouse, Bryan James Smith
  • Patent number: 8941828
    Abstract: Described are methods for multi-wavelength cavity ring-down spectroscopy; comprising simultaneously and continuously irradiating an optical cavity with light at two or more different wavelengths, each light being intensity-modulated at a different modulation frequency, detecting the light of two or more wavelengths after the light has traveled through the optical cavity; measuring an optical loss of each detected light; and determining a characteristic of the optical cavity from the optical loss of each detected light. Also described are apparatus and systems for multi-wavelength cavity ring-down spectroscopy.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: January 27, 2015
    Assignee: Queen's University at Kingston
    Inventors: Hans-Peter Loock, Helen Waechter
  • Patent number: 8817265
    Abstract: Herein are disclosed optoelectronic methods and devices for detecting the presence of an analyte. Such methods and devices may comprise at least one sensing element that is responsive to the presence of an analyte of interest and that may be interrogated optically by the use of at least one light source and at least one light detector.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: August 26, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: John C. Hulteen, Kiran S. Kanukurthy, Neal A. Rakow, Andrzej F. Rybacha, Richard L. Rylander, Arthur Scheffler, Zeljko Zupanc
  • Patent number: 8711360
    Abstract: A spectral measurement device includes: an optical band-pass filter section that has first to n-th wavelengths (n is an integer of 2 or more) having a predetermined wavelength width as a spectral band thereof; a correction operation section that corrects a reception signal based on an output optical signal from the optical band-pass filter section; and a signal processing section that executes predetermined signal processing based on the reception signal corrected by the correction operation section that corrects the reception signal based on the change in the spectral distribution of the reception signal.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: April 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuaki Funamoto
  • Patent number: 8692992
    Abstract: Present embodiments include a bandage sensor having an electrically conductive adhesive transfer tape layer as a Faraday shield. The electrically conductive transfer tape layer may be used in lieu of a fully metallic Faraday shield. The present embodiments also include a sensor cable having one or more conductive polymer EMI/RFI shields in place of a fully metallic EMI/RFI shield. Methods for manufacturing and remanufacturing such sensors and cables are also disclosed.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 8, 2014
    Assignee: Covidien LP
    Inventor: David P. Besko
  • Patent number: 8658967
    Abstract: A method for sustaining a plasma includes providing a volume of a gas; generating illumination of a first selected wavelength; and forming a first plasma species in a first region of the gas and a second plasma species in a second region of the gas by focusing the illumination of the first wavelength into the volume of gas, the first region having a first average temperature and a first size, the second region having a second average temperature and a second size, the illumination of the first selected wavelength transmitted by the second plasma species, the illumination of the first selected wavelength absorbed by the first plasma species by tuning the first selected wavelength of the illumination to an absorption line of the first plasma species, the absorption line being associated with an ionic absorption transition or an excited neutral transition of the first plasma species.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: February 25, 2014
    Assignee: KLA-Tencor Corporation
    Inventors: Ilya Bezel, Anatoly Shchemelinin, Matthew Derstine
  • Patent number: 8610894
    Abstract: The provision of a dryness fraction measuring device includes a light-emitting body for irradiating moist steam with light of a plurality of wavelengths; a light-receiving element for receiving light of the plurality of wavelengths that has traversed the moist steam; and a dryness fraction calculating device for calculating the dryness fraction of the moist steam based on the received light intensity at each of the plurality of wavelengths.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 17, 2013
    Assignee: Azbil Corporation
    Inventor: Giichi Nishino
  • Patent number: 8582098
    Abstract: A fiberized single photon sensitive spectrometer based on a 32-channel PMT sensor is highly sensitive with broad detection dynamic range. The spectrometer enables accurate and high speed detection, identification and analysis of biological samples labeled with multiple fluorescent markers, such as compositions of multi-color fluorescence signals or radiation emitted by multiple fluorescence dyes. A fiberized optical input of the spectrometer allows an easy and efficient coupling to any measurement system based on fiber collection of the analyzed fluorescence. The spectrometer provides highly accurate DNA sequencing. A 32 channel PMT single photon detector has a detection dynamic range of more than 20 bits and has a frame rate of about 3300 frames per second. The dynamic range of the detector's pixels reaches 108 photocounts per second.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: November 12, 2013
    Assignee: The Research Foundation of State University of New York
    Inventors: Andriy Tsupryk, Ivan Tovkach, Dmitriy Gavrilov, Vera Gorfinkel, Boris Gorbovitski, Dmytro Gudkov, Tetyana Gudkova
  • Patent number: 8576400
    Abstract: Herein are disclosed optoelectronic methods and devices for detecting the presence of an analyte. Such methods and devices may comprise at least one sensing element that is responsive to the presence of an analyte of interest and that may be interrogated optically by the use of at least one light source and at least one light detector.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: November 5, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: John C. Hulteen, Kiran S. Kanukurthy, Neal A. Rakow, Andrzej F. Rybacha, Richard L. Rylander, Arthur Scheffler, Zeljko Zupanc
  • Patent number: 8500632
    Abstract: An endoscope includes an elongated insertion portion having a distal end portion provided with an illumination window and an observation window. A single solid-state image sensing device whose image pickup face is provided at an image forming position of an objective optical system mounted on the observation window. In the vicinity of the image pickup face of the solid-state image sensing device, a filter portion that has a first filter having a wideband wavelength transmission characteristic in a visible band and a second filter having a narrowband wavelength transmission characteristic in the visible band two-dimensionally arranged is disposed.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: August 6, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventor: Kazuhiro Gono
  • Publication number: 20130077095
    Abstract: Present embodiments include a bandage sensor having an electrically conductive adhesive transfer tape layer as a Faraday shield. The electrically conductive transfer tape layer may be used in lieu of a fully metallic Faraday shield. The present embodiments also include a sensor cable having one or more conductive polymer EMI/RFI shields in place of a fully metallic EMI/RFI shield. Methods for manufacturing and remanufacturing such sensors and cables are also disclosed.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 28, 2013
    Applicant: Nellcor Puritan Bennett LLC
    Inventor: David P. Besko
  • Patent number: 8400631
    Abstract: A method for measuring a wave surface of an optical component formed of a stack of at least two layers of different refraction indices from reflection or transmission measurements of points located on a face of the said optical component.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: March 19, 2013
    Assignee: Commissariat à l'énergie atomique et aux energies alternatives
    Inventor: Hervé Piombini
  • Patent number: 8368002
    Abstract: A photosensitive apparatus including a full width array of photosensors and a first photosensor chip. The first photosensor chip including a linear array of photosensors having a plurality of pixels arranged in a long direction and a linear variable filter adapted to transmit at least ten unique bandwidths of wavelengths of light along a length of the linear variable filter where the linear variable filter is fixedly secured to the linear array. Each respective pixel receives a unique bandwidth of wavelengths of light as a light passes through the linear variable filter and the length is aligned with the long direction. The full width array of photosensors is arranged perpendicular to a process direction of a printing device.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: February 5, 2013
    Assignee: Xerox Corporation
    Inventors: Paul A. Hosier, Jagdish C. Tandon, Josef E. Jedlicka, Paul S. Bonino
  • Publication number: 20130010293
    Abstract: A light emitter emits light with a plurality of wavelengths towards a test object held in a spectrophotometer tool. A light receiver receives the light passing through the test object. A detector detects absorbances of wavelength components from the light received by the receiver. An optical path length calculator compares, in the absorbances of the wavelength components detected, a wavelength component absorbance of light absorbed by a pigment that absorbs light with a wavelength other than a wavelength of light absorbed by an analyte in the test object and a predetermined value of the wavelength component absorbance to calculate an optical path length passing through the test object. A corrector corrects the wavelength component absorbance detected excluding the wavelength of the light absorbed by the pigment using the optical path length calculated by the optical path length calculator to calculate a corrected wavelength component absorbance in a reference optical length.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Applicant: ARKRAY, INC.
    Inventors: Akio Okubo, Tsutomu Nakamura
  • Patent number: 8327839
    Abstract: An air quality instrumentation system for a concentrated solar power generation system using a fluid heat transfer medium includes a pipe, a window and a spectroscope. The pipe extends from the concentrated solar power generation system and contains system air from within the concentrated solar power generation system. The window is positioned within the pipe to permit light to pass through the pipe and the system air. The spectroscope is positioned adjacent the window to assess concentration of a constituent within the system air, the concentration of the constituent providing an indication of an operating condition of the concentrated solar power generation system.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: December 11, 2012
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Andrew J. Zillmer, Joseph P. Carroll
  • Publication number: 20120250015
    Abstract: For high-resolution spectral volume sampling, a band-pass filter spectrally filters electromagnetic radiation from a scene to wavelengths within a specified wavelength range. A slit array is located at an image of the scene and includes a plurality of slits arranged in parallel. Each slit has a specified width and a specified spacing between slits. Each slit further transmits the electromagnetic radiation. A dispersion device disperses the transmitted electromagnetic radiation from the slit array with a specified dispersion while focusing the transmitted electromagnetic radiation onto a detector array so that each wavelength of electromagnetic radiation from each slit is focused as a unique, non-overlapping line on the detector array.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 4, 2012
    Applicant: Utah State University Research Foundation
    Inventor: Alan B. Marchant
  • Patent number: 8274645
    Abstract: A method and apparatus for in-situ metrology of a workpiece disposed in a vacuum processing chamber. The apparatus may include an optical assembly external to the processing chamber configured to focus a relatively large optical spot over a relatively large working distance to acquire a TE and TM spectra from a periodic array on the workpiece. The workpiece may be disposed in the processing chamber with an arbitrary orientation which is first determined via a reflectance measurement. TE and/or TM spectra may then be acquired by initiating a periodic triggering of a flash lamp based on the determined workpiece orientation to account for variation in placement of the workpiece within the processing chamber. The periodic array from which spectra are collected may be a memory array being fabricated in a semiconductor wafer.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: September 25, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Matthew F. Davis, Lei Lian, Thorsten B. Lill
  • Patent number: 8246912
    Abstract: An optical detecting apparatus for a bio-chip, the optical detecting apparatus including: a light source system for illuminating a bio-chip with an excitation light; a fluorescent light detecting system for detecting a fluorescent light emitted by the bio-chip; and a light path altering unit for directing the excitation light emitted by the light source system to a bio-chip and directing the fluorescent light emitted by the bio-chip to the fluorescent light detecting system, wherein a cross-sectional area of the excitation light irradiated by the light source system onto the bio-chip is greater than an area of the bio-chip, and the fluorescent light detecting system detects a fluorescent image of the entire bio-chip with a single illumination of excitation light.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seong-ho Cho
  • Patent number: 8227256
    Abstract: Two-color (two-photon) excitation with two confocal excitation beams is demonstrated with a Raman shifter as excitation light source. Two-color excitation fluorescence is obtained from Coumarin 6H dye sample (peak absorption=394 nm, peak fluorescence=490 nm) that is excited using the first two Stokes outputs (683 nm, 954 nm, two-color excitation=398 nm) of a Raman shifter pumped by a 6.5 nsec pulsed 532 nm-Nd:YAG laser (Repetition rate=10 Hz). The two Stokes pulses overlap for a few nanoseconds and two-color fluorescence is generateven with focusing objectives of low numerical apertures (NA?0.4). We observed the linear dependence of the two-color fluorescence signal with the product of the average intensities of the two Stokes excitation beams. The two-color fluorescence distribution is strongly localized around the common focus of the confocal excitation beams.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: July 24, 2012
    Inventors: Caesar A. Saloma, Wilson O. Garcia, Jonathan A. Palero
  • Patent number: 8208505
    Abstract: A laser system provides harmonic generation in a laser beam pulse. In another aspect of the present invention, a laser operably remits a laser pulse, a gaseous optical medium operably creates third or greater harmonic generation in the pulse, and a controller characterizes and compensates for distortions in the pulse. A further aspect of the present invention employs multiple optical media arranged to cause cascading harmonic generations in a laser pulse.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: June 26, 2012
    Assignee: Board of Trustees of Michigan State University
    Inventors: Marcos Dantus, Don Ahmasi Harris, Vadim V. Lozovoy
  • Publication number: 20120088486
    Abstract: Spectroscopy apparatuses oriented to the critical angle of the sample are described that detecting the spectral characteristics of a sample wherein the apparatus consists of an electromagnetic radiation source adapted to excite a sample with electromagnetic radiation introduced to the sample at a location at an angle of incidence at or near a critical angle of the sample; a transmitting crystal in communication with the electromagnetic radiation source and the sample, the transmitting crystal having a high refractive index adapted to reflect the electromagnetic radiation internally; a reflector adapted to introduce the electromagnetic radiation to the sample at or near an angle of incidence near the critical angle between the transmitting crystal and sample; and a detector for detecting the electromagnetic radiation from the sample. Also, provided herein are methods, systems, and kits incorporating the peri-critical reflection spectroscopy apparatus.
    Type: Application
    Filed: April 7, 2010
    Publication date: April 12, 2012
    Inventor: Robert G. Messerchmidt
  • Patent number: 8119068
    Abstract: A fluid content monitor including a cuvette, a colorimeter adapted to generate a signal indicative of contents of a fluid sample contained in the cuvette, a container for holding a reagent, and a pump assembly for delivering reagent from the container to the cuvette. The pump assembly includes a tube extending from the container to the cuvette, check valves preventing reverse flow in the tube, and a hammer driven by a solenoid for repetitively compressing the tube to pump reagent to the cuvette. The cuvette can be removed for cleaning and replacement.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: February 21, 2012
    Assignee: HF Scientific, Inc.
    Inventors: Rowan Connelly, Joel Leal
  • Patent number: 8115932
    Abstract: Methods and apparatus for measuring ion implant dose in a material provide for: measuring a reflection spectrum through an implantation surface of the material, the implantation surface having been subjected to an ion implantation process to create a material layer from the implantation surface to a depth within the material and a layer of weakness below the material layer; storing magnitudes of the reflection spectrum as a function of respective wavelengths of incident light on the implantation surface; and computing an ion implant dose used during the ion implantation process based on comparisons of at least two magnitudes of the reflection spectrum at least two corresponding wavelengths of the incident light.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: February 14, 2012
    Assignee: Corning Incorporated
    Inventor: Johannes Moll
  • Publication number: 20120019822
    Abstract: A method for measuring a wave surface of an optical component formed of a stack of at least two layers of different refraction indices from reflection or transmission measurements of points located on a face of the said optical component.
    Type: Application
    Filed: January 28, 2010
    Publication date: January 26, 2012
    Applicant: Commissariat A L'Energie Atomique et Aux Energies Alternatives
    Inventor: Hervé Piombini
  • Publication number: 20110317150
    Abstract: A method for measuring optical properties of an optically variable marking applied on an object, the method including the steps of illuminating the optically variable marking so as to form a first light reflected by the marking at a first view angle and a second light reflected by the marking at a second view angle, the first and second lights having different spectral compositions as a result of the optically variable marking, refracting the second reflected light through a optical unit so as to redirect the second reflected light toward an optical sensor, capturing the first light and the second refracted light with the optical sensor simultaneously; and determining optical properties of the optical variable marking based on the captured first and second lights.
    Type: Application
    Filed: June 29, 2011
    Publication date: December 29, 2011
    Applicant: SICPA Holding SA
    Inventors: Eric DECOUX, Xavier Schwab
  • Patent number: 8077312
    Abstract: A method and apparatus for calibrating an NIRS system which includes a sensor portion and for evaluating an NIRS system for proper functioning is provided that includes an enclosure with at least two windows disposed in a wall of the enclosure. The windows allow the light source and one or more detectors of an NIRS system sensor to interface with the enclosure. One window is dedicated to the light source while each light detector has a window dedicated thereto. Thus, the enclosure includes a number of windows equal to the number of light detectors in the NIRS system sensor plus one. The inner surface of the wall(s) of the enclosure is of a light-absorbing color; e.g., black. A diffuse reflectance member of a light-reflecting color, e.g., white, is disposed in the enclosure spaced apart from the surface with the windows disposed therein.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: December 13, 2011
    Assignee: CAS Medical Systems, Inc.
    Inventors: Paul B. Benni, Andrew Kersey, Krystian Gieryk
  • Publication number: 20110273709
    Abstract: A spectrophotometer comprising a monolithic semiconductor substrate, one or more wavelength dispersing means, and one or more wavelength detecting means, wherein the monolithic substrate (1) has waveguide means (2) and one or more resonators (3-14) acting as detectors of particular light wavelengths and disposed in proximity to the waveguide means in such a way that evanescent light coupling can occur for said light wavelengths.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 10, 2011
    Applicant: ZINIR LIMITED
    Inventor: Stephen John Sweeney
  • Publication number: 20110249255
    Abstract: A sensor system for capturing and specifying individual particles (16) in a fluid includes a measurement cell (14) through which the fluid can flow, a light source (2; 30) that is arranged on the measurement cell (14) and creates a light beam (4; 36) passing through the measurement cell (14), and an intensity sensor (26; 44) that is arranged on the measurement cell (14) opposite the light source (2; 30) such that it captures the light beam exiting the measurement cell (14) and is designed for separately capturing the intensity (IA, IB) of the light beam in at least two different wavelength regions (?A, ?B).
    Type: Application
    Filed: December 2, 2009
    Publication date: October 13, 2011
    Applicant: GRUNDFOS MANAGEMENT A/S
    Inventor: Anders Bentien
  • Patent number: 7998747
    Abstract: The invention provides ways to determine the impact of diluting a solution wherein the diluting may be carried out for any of a variety of purposes. In one embodiment, the method enables accurate volume dispensation calculations independent of meniscus shape. In another embodiment, the method enables accurate determination of plate washing efficiency. In yet another embodiment, the method enables the accurate determination of dilution ratio over a plurality of dilution steps. The methods described may be carried out using one or more systems arranged to perform the steps. A kit of the invention includes instructions for carrying out the steps of the methods and, optionally, one or more solutions suitable for conducting photometric measurements.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 16, 2011
    Assignee: Artel, Inc.
    Inventors: John Thomas Bradshaw, Richard H. Curtis, Keith J. Albert, Tanya R. Knaide, Ceara McNally, Alex L. Rogers
  • Publication number: 20110188036
    Abstract: The present invention relates to a monochromatic measurement system. The system mainly includes a monochromator, a light-detecting device and a filter device. The monochromator functions to split light under test into respective light beams with different wavelengths. The filter device modulates the transmission efficiency of the respective light beams, so that the wavelengths of the light beams to which the light-detecting device displays a better response have a lower transmission efficiency while the wavelengths of the light beams to which the light-detecting device displays a lower response have a higher transmission efficiency. The response values measured by the light-detecting device with respect to different wavelength intervals are normalized accordingly. The measurement errors attributed to the measurement precision of the instrument and the environmental noise are independent from the variation of wavelength. The reliability of the measurement instrument is elevated.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 4, 2011
    Applicant: CHROMA ATE INC.
    Inventors: Ding-Hsiang Pan, Hsin-Yueh Sung, Tsung-Hsien Ou, Yu-Hsuan Lin, Hung-Ta Chien
  • Patent number: 7973658
    Abstract: An illumination and detection architecture that illuminates a target for detecting a material of interest. The architecture includes an illumination component that illuminates the target using a predetermined light wavelength known to energize and thereby cause a detectable change in the desired chemical and/or compounds associated with the target in a particular way. The change is then captured by an image capture system and processed to determine the presence or absence detected of the desired material of interest at the target.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: July 5, 2011
    Inventors: Warren G. Parish, Tim Arion
  • Patent number: 7897923
    Abstract: A method of non-destructively determining the physical property of a material surface, the method including irradiating a surface with infrared energy over a spectrum of wavelengths; detecting said infrared energy reflected from said surface over said spectrum of wavelengths; performing multivariate calibration of said reflected infrared energy at a plurality of selected wavelengths including said spectrum of wavelengths; using results of said multivariate calibration to predict one or more physical properties of said model material; and, determining said one or more physical properties of said surface. Details are included for the case where uni-directional fiber CFRP materials are to be calibrated and predicted because special care must be taken for that material to insure the incident light from the spectrometer is at the proper orientation for calibration and for prediction of samples in question.
    Type: Grant
    Filed: June 28, 2008
    Date of Patent: March 1, 2011
    Assignee: The Boeing Company
    Inventors: Paul Shelley, Greg Werner
  • Publication number: 20110026021
    Abstract: The optical assemblies disclosed herein advantageously utilize a beamsplitting apparatus in association with either (i) the illumination path or (ii) the collection path of a color measurement instrument. For implementations involving the illumination path, the beamsplitting apparatus may be configured to spectrally divide one or more initial beams of light so as to emit a plurality of resultant beams of light, wherein the optical assembly is configured to illuminate a target using at least a first and a second of the plurality of resultant beams of light. Similarly, for implementations involving the collection path, the beamsplitting apparatus may be configured to spectrally divide light received from a target so as to emit a plurality of resultant beams of light, wherein the optical assembly is configured to detect at least a first and a second of the plurality of resultant beams of light.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Applicant: X-RITE, INC.
    Inventors: Steven Henry Peterson, Harold VanAken
  • Patent number: 7847935
    Abstract: An FTIR measurement is conducted on a background gas to obtain a single beam spectrum SB(BG) [C] and a synthetic single beam spectrum SSB(BG)[D], and an FTIR measurement is conducted on a sample gas to obtain a single beam spectrum SB(Samp)[E] and a synthetic single beam spectrum SSB(Samp)[F].
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: December 7, 2010
    Assignee: Otsuka Electronics Co., Ltd.
    Inventors: Satoshi Nitta, Yoshihiro Osawa