Patents Examined by Jonathon Cook
  • Patent number: 10352685
    Abstract: A device. The device includes a substrate a substrate, a first optical waveguide disposed on the substrate and a second optical waveguide disposed on the substrate. The device further includes a coupling element disposed on the substrate, the coupling element configured to couple an optical signal in the first optical waveguide to the second optical waveguide, and couple an optical signal in the second optical waveguide to the first optical waveguide. A first reflective element is disposed at an end of the first optical waveguide configured to reflect optical signals in the first optical waveguide. A second reflective element disposed at an end of the second optical waveguide configured to reflect signals in the second optical waveguide.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 16, 2019
    Assignee: Geospace Technologies Corporation
    Inventor: Willard Womack
  • Patent number: 10337916
    Abstract: A method is provided to obtain a full range intrinsic spectral signature for spectroscopy and spectral imaging. The method eliminates the irrelevant spectral components and is used to normalize the spectral intensities across the full wavelength ranges obtained from different instrumentation. The method determines the intrinsic instrument noise levels and the noise level across the spectral range is averaged for each spectrum. By determining the percent of the integrated instrument noise relative to the integrated illumination energy for each instrument, the instrument noise can be normalized to one common value and the intensity values of the intrinsic sample spectra can be normalized proportionately and combined into a continuous intrinsic spectrum across the wavelength ranges of the contributing instruments. The methodology is also implemented in spectral imaging and spectral data cubes.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: July 2, 2019
    Assignee: Center for Quantitative Cytometry
    Inventors: Abraham Schwartz, Adolfas K. Gaigalas, Peter Ingram
  • Patent number: 10330459
    Abstract: A light pulse interferometer includes a first atom source and a first laser. The first atom source is configured to direct a first group of atoms in a first direction. The first laser is configured to generate one or more interferometer laser beam pairs. The one or more interferometer laser beam pairs interact with the first group of atoms in an interferometer sequence of three or more pulses to produce atom interference. A first laser beam pair of the one or more interferometer laser beam pairs is disposed to interact with the first group of atoms to perform 1D-cooling and velocity control of the first group of atoms prior to the interferometer sequence.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: June 25, 2019
    Assignee: AOSense, Inc.
    Inventors: Michael R. Matthews, Adam T. Black, Mark A. Kasevich, Micah Ledbetter
  • Patent number: 10327631
    Abstract: Disclosed herein are methods and systems for aligning swept-source optical coherence tomography (SS-OCT) spectral interferograms to a reference spectral interferogram based on signal information (e.g., amplitude or phase) at a fixed-pattern noise location to reduce residual fixed-pattern noise and improve the phase stability of SS-OCT systems.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: June 25, 2019
    Assignee: Oregon Health & Science University
    Inventors: David Huang, Gangjun Liu
  • Patent number: 10323984
    Abstract: A method for estimating an input spectrum from sensor data acquired by an optical sensor assembly, having an aperture, a Fabry-Perot interferometer, and an optical sensor element, the method including: obtaining first calibration data representative of a spectral response function of the optical sensor assembly for a first setting of the aperture; computing second calibration data from the first calibration data, the second calibration data being representative of a spectral response function of the optical sensor assembly for a second setting of the aperture, where the second setting corresponds to a setting applied during the acquiring of the sensor data; and estimating the input spectrum as a function of the second calibration data and the sensor data. Additionally, a corresponding system for estimating an input spectrum.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: June 18, 2019
    Assignee: VITO NV
    Inventor: Stefan Livens
  • Patent number: 10324077
    Abstract: Systems, apparatuses, and computer-implemented methods are provided for the real-time quantification of crude oil in an effluent from coreflooding apparatus. Disclosed here is a method of determining the amount of crude oil in an effluent from a coreflooding apparatus by blending the effluent stream with a solvent stream in a mixing device to produce a mixed stream, supplying the mixed stream to an in-line phase separator to produce a first stream containing the solvent and the crude oil from the effluent stream and a second stream containing water and water-miscible components from the effluent stream; and passing the first stream to a continuous flow analyzer to determine the amount of crude oil in the effluent stream.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: June 18, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Dmitry Kosynkin, Mohammed Alaskar
  • Patent number: 10323963
    Abstract: A flexible optical measuring device comprises an optical distance measuring module, an optical fiber adapter and an optical coupling module. The optical distance measuring module comprises a light source, an optical receiver and a computing unit. The optical fiber adapter is disposed and connected between the optical distance measuring module and the optical coupling module. The optical coupling module comprises a first optical fiber, a two-in-one optical coupler, a detector and a second optical fiber. A measuring beam is emitted from the light source and reaches the detector. The measuring beam then passes through the detector to the object and forms a reflected beam which is reflected back to the detector, then enters the second optical fiber and passes through the optical receiver and the optical receiver outputs a measurement signal. The computing unit calculates the distance between the object and a terminal of the detector accordingly.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 18, 2019
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Tai-Shan Liao, Chi-Hung Huang, Chun-Li Chang, Shih-Jie Chou
  • Patent number: 10323985
    Abstract: A system for determining a calibrated spectral measurement includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity. The processor is configured to determine the calibrated spectral measurement. The calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a plurality of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements. For a calibration measurement, a settable gap is selected and a set of input monochromatic source wavelengths is used to measure responses at a detector after transmission through the Fabry-Perot etalon. Each input monochromatic source wavelength is also measured using a radiometer to scale detector measurements.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 18, 2019
    Assignee: TruTag Technologies, Inc.
    Inventors: Ron R. Nissim, Timothy Learmonth, Mark Hsu, Hod Finkelstein
  • Patent number: 10323938
    Abstract: The invention relates to a method for calibrating a measuring device, comprising the following steps: moving, with finite accuracy and thus with positioning error, to various points that lie in a testing volume of the measuring device and that can be characterized by spatial and/or angular coordinates, generating measurement signals at the respective points, and determining parameters of a computing model of the measuring device from the measurement signals and the spatial and/or angular coordinates. The method is characterized in that a coordinate system to which the coordinates of the points of the testing volume relate is defined from points moved to with error, by associating predetermined coordinate values with exactly six coordinates of three points.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: June 18, 2019
    Assignee: Carl Mahr Holding GmbH
    Inventors: Goran Baer, Christof Pruss, Wolfgang Osten
  • Patent number: 10309836
    Abstract: A collimation evaluation device includes a first reflection member, a second reflection member, a screen, and a housing. A first reflection surface of the first reflection member and a first reflection surface of the second reflection member face each other and are parallel to each other. Further, interference fringes are formed on the screen by light L12 reflected on the first reflection surface of the first reflection member and a second reflection surface of the second reflection member and light L21 reflected on a second reflection surface of the first reflection member and the first reflection surface of the second reflection member, and collimation of incident light is evaluated on the basis of a direction of the interference fringes.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 4, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Junji Okuma, Yasunori Igasaki, Yasunaga Nara
  • Patent number: 10288483
    Abstract: A method is performed for estimating the optical spectrum of a light beam. The method includes: projecting the light beam onto distinct spatial areas of a spectrometer, wherein each spatial area receives a different filtered version of the optical spectrum; detecting a characteristic of the projected light beam at each of the distinct spatial areas of the spectrometer; receiving a two-dimensional matrix in which each entry of the matrix provides a relationship between one or more spatial areas and each spectral feature, wherein the two-dimensional matrix is related to the input-output relationship of the spectrometer; and estimating the optical spectrum of the light beam based on an analysis that uses both the detected light beam characteristics and the received two-dimensional matrix.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: May 14, 2019
    Assignee: Cymer, LLC
    Inventor: Brian Edward King
  • Patent number: 10281463
    Abstract: Methods of determining a phenotype of cells in a biological sample are provided. The methods are based measuring a refractive index of said cells based on a diffraction pattern received from a diffraction grating having a plurality of compartments having lateral dimensions such that said cells can fit therein.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: May 7, 2019
    Assignee: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED
    Inventors: Ester Segal, Nadav Ben-Dov
  • Patent number: 10281258
    Abstract: An image of an object can be synthesized either from the Fourier components of the electric field or from the Fourier components of the intensity distribution. Imaging with a lens is equivalent to assembling the Fourier components of the electric field in the image plane. This invention provides a method and a means for lensless imaging by assembling the Fourier components of the intensity distribution and combining them to form the image with the use of amplitude splitting interferometer. The angular spectrum of the electromagnetic radiation consists of wavefronts propagating at different angles. The amplitude of each wavefront is split and interfered with itself to create sinusoidal fringe patterns having different spatial frequencies. The sinusoidal fringe patterns are combined to form an image of the object. This method applies to coherent and incoherent light. A method of measuring the angular spectrum I(?x,?y) of an object, i.e. the intensity of the wavefront vs angle of incidence.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: May 7, 2019
    Inventor: John Farah
  • Patent number: 10281257
    Abstract: Disclosed are systems and methods to extract information about the size and shape of an object by observing variations of the radiation pattern caused by illuminating the object with coherent radiation sources and changing the wavelengths of the source. Sensing and image-reconstruction systems and methods are described for recovering the image of an object utilizing projected and transparent reference points and radiation sources such as tunable lasers. Sensing and image-reconstruction systems and methods are also described for rapid sensing of such radiation patterns. A computational system and method is also described for sensing and reconstructing the image from its autocorrelation. This computational approach uses the fact that the autocorrelation is the weighted sum of shifted copies of an image, where the shifts are obtained by sequentially placing each individual scattering cell of the object at the origin of the autocorrelation space.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 7, 2019
    Inventor: Lyle G. Shirley
  • Patent number: 10281326
    Abstract: Disclosed are examples of spectrometer-equipped devices that provide general illumination supplied by artificial or natural light, and that also detect substances in the environment around the device. In some examples, light may be emitted by a spectrometer light source. The spectrometer detects the light from any of a natural light source, artificial general illumination light or light from the spectrometer light source passed, reflected or shifted and regenerated by substances in the air or on a surface in the vicinity of the device. In response, the spectrometer generates signals representative of the spectral power distribution (e.g. intensities of given wavelengths in the optical spectrum) of the detected light. A controller analyzes the spectrometer generated signals and initiates action based on or outputs a report indicating the environmental condition detected by the spectrometer-equipped device.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 7, 2019
    Assignee: ABL IP Holding LLC
    Inventors: David P. Ramer, Jack C. Rains, Jr.
  • Patent number: 10274371
    Abstract: There is provided a method for analyzing optical properties of an object, including utilizing a light illumination having a plurality of amplitudes, phases and polarizations of a plurality of wavelengths impinging from the object, obtaining modified illuminations corresponding to the light illumination, applying a modification to the light illumination thereby obtaining a modified light illumination, analyzing the modified light illumination, obtaining a plurality of amplitudes, phases and polarizations maps of the plurality of wavelengths, and employing the plurality of amplitudes, phases and polarizations maps for obtaining output representing the object's optical properties. An apparatus for analyzing optical properties of an object is also provided.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: April 30, 2019
    Assignee: ADOM, Advanced Optical Technologies Ltd.
    Inventors: Yoel Arieli, Yosef Weitzman
  • Patent number: 10264973
    Abstract: According to one embodiment, an Optical Coherence Tomography (OCT) device includes: a light source; a mirror to reflect a light from the light source; a light receiver to output the light from the light source to skin and receive a light reflected from the skin; a detector to detect an interference signal between the light reflected from the mirror and the light received by the light receiver; an image sensor to convert the detected interference signal into an image signal; a processor to output a second signal by filtering a first signal based on the image signal, calculate an error by using the first signal and the second signal, and output an error-compensated image by compensating for the calculated error; and a display to display the error-compensated image. In this configuration, the OCT device may reduce noise caused by the image sensor, to display a skin image with improved quality.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: April 23, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jun Lee, Jungho Chung, Hoseong Song, Yujin Oh
  • Patent number: 10258238
    Abstract: Methods and apparatus for ascertaining a relative viscosity characterizing a fluid sample. The fluid sample is illuminated through a scattering membrane adjacent to the fluid with broadband radiation. Scattering from particles within the fluid sample characterized by a distribution of characteristic dimensions spanning at least two orders of magnitude is detected, generating a detector signal as a function of depth relative to a specified surface of the scattering membrane at a plurality of temporal delays. A cross-correlation function of at least one of amplitude, phase and intensity of a scattered optical field is derived for a plurality of depths relative to the specified surface. A mean cross-correlation function is then derived for each depth and fit to obtain a diffusion coefficient, from which a relative viscosity characterizing the fluid is derived.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 16, 2019
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Stephen A. Boppart, Guillermo Luciano Monroy, Paritosh Pande
  • Patent number: 10260863
    Abstract: Interferometer (10) for the real-time measurement of absolute distances and/or relative position movements between a first and a second machine part, comprising a measurement unit (20) and a reflector unit (40). wherein the measurement unit (20) comprises a housing (21) with at least one wall made of heat-conducting material, wherein several measurement elements are arranged in the housing (21), wherein the measurement elements comprise: a laser source (22), a Peltier element (24) and a digital control (23) wherein the measurement elements are thermally coupled to the wall of the housing (21) made of heat-conducting material.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: April 16, 2019
    Assignee: attocube systems AG
    Inventors: Martin Zech, Klaus Thurner
  • Patent number: 10247608
    Abstract: A method of controlling a spectroscopic module that includes a measurement light source, a variable-wavelength optical filter, a photodiode, and a conversion circuit for converting a drive signal voltage into a gap displacement amount. The spectroscopic module has a reference light source for emitting a reference light beam of a known wavelength. The controlling method involves varying a gap for the incident reference light beam, extracting two maximum points among data output from the photodiode, and updating a first conversion formula provided in the conversion circuit through use of drive signal voltages and gap amounts corresponding to the two points.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: April 2, 2019
    Assignee: Panasonic Corporation
    Inventors: Soichiro Hiraoka, Masaya Nakatani