Patents Examined by Dominic J Bologna
  • Patent number: 10571249
    Abstract: The invention relates to a device for optical measurement of a thickness of an intransparent layer on a substrate, comprising first means for optical distance measurement configured to measure a first distance between a first reference plane and a first surface of the intransparent layer, and second means for optical distance measurement configured to measure a second distance between a second reference plane and a second surface of the intransparent layer. The second means measures a third distance between the second reference plane and a surface of the substrate. The thickness of the intransparent layer is computed from the first distance and the second distance. The measurement of the third distance is used to take into account the influence of the optical effect of the substrate on the distance measurement of the second distance. The invention also relates to a method for optical measurement of a thickness of an intransparent layer on a substrate.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: February 25, 2020
    Inventors: Philipp Nimtsch, Simon Mieth
  • Patent number: 10564106
    Abstract: A method and system are presented for use in measuring one or more characteristics of patterned structures. The method comprises: providing measured data comprising data indicative of at least one Raman spectrum obtained from a patterned structure under measurements using at least one selected optical measurement scheme each with a predetermined configuration of at least one of illuminating and collected light conditions corresponding to the characteristic(s) to be measured; processing the measured data, and determining, for each of the at least one Raman spectrum, a distribution of Raman-contribution efficiency (RCE) within at least a part of the structure under measurements, being dependent on characteristics of the structure and the predetermined configuration of the at least one of illuminating and collected light conditions in the respective optical measurement scheme; analyzing the distribution of Raman-contribution efficiency and determining the characteristic(s) of the structure.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: February 18, 2020
    Inventors: Gilad Barak, Yanir Hainick, Yonatan Oren, Vladimir Machavariani
  • Patent number: 10557755
    Abstract: Provided is a position detection method including splitting detection light into first and second light, the first light being incident on a returning optical path, a portion of the first light being transmitted through a beam splitter and a remaining portion of the first light being reflected by the beam splitter to reach the beam splitter through a movable mirror every time the first light reaches the beam splitter through the movable mirror, combining the first light transmitted though the beam splitter and the second light to generate multiple interference light, extracting a second interference light signal having a wavelength of 1/p (p is a natural number) of a wavelength of detection light from a first interference light signal of the multiple interference light, and calculating a position of the movable portion in a predetermined direction based on the second interference light signal.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: February 11, 2020
    Inventors: Tomofumi Suzuki, Kyosuke Kotani
  • Patent number: 10551322
    Abstract: A SERS unit comprises an integrally formed handling board and a SERS element secured within a container space provided in the handling board so as to open to one side in a thickness direction of the handling board. The SERS element has a substrate arranged on an inner surface of the container space and an optical function part formed on the substrate, for generating surface-enhanced Raman scattering.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: February 4, 2020
    Inventors: Masashi Ito, Katsumi Shibayama, Toshimitsu Kawai, Kazuto Ofuji, Hiroki Oyama, Yoshihiro Maruyama, Takafumi Yokino, Masaki Hirose, Anna Yoshida
  • Patent number: 10539463
    Abstract: Provided are a mobile multispectral imaging device, a user terminal for acquiring a multispectral image, a spectral image analysis server, and a method thereof. A mobile multispectral imaging device, according to an embodiment of the present invention, is for taking spectral images for respective wavelengths by using a photographing unit of a user terminal. The mobile multispectral imaging device comprises: an optical system, positioned in a place corresponding to the photographing unit of the user terminal, which irradiates light to an object to be photographed, collects the light reflected from the object to be photographed, and transfers the light to the photographing unit; and a filter wheel, which is provided with a plurality of optical filters spaced apart from one another and positions one of the plurality of optical filters in an optical path according to rotation, wherein the plurality of optical filters filter an irradiated light in a specific wavelength.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 21, 2020
    Inventors: Jae Youn Hwang, Sewoong Kim, Jin Man Park
  • Patent number: 10527541
    Abstract: A method for non-destructively testing the heating of a determined zone of a part made of a polymer material, the method comprising the following steps: a) taking at least one colorimetric measurement on said determined zone to be tested and obtaining the value ap of the parameter a of the CIELAB colorimetric space; b) taking at least one colorimetric measurement on said reference zone of said part and obtaining the value ap/ref of the parameter a of the CIELAB colorimetric space; c) calculating ?ap=ap?ap/ref; and d) establishing a risk of heating said determined zone to be tested if ?ap is higher than a threshold value A1.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: January 7, 2020
    Inventors: Jean-Louis Romero, Jean-Pierre Coulette, Angélique Melody Marine Alexia Mainczyk
  • Patent number: 10524666
    Abstract: In general aspect, a white excitation light generating device can include a fluorescent excitation light source that generates fluorescent excitation light, a first light source that generates first monochromatic light of a first wavelength different from a wavelength of the fluorescent excitation light, a second light source that generates second monochromatic light of a second wavelength different from the wavelength of the fluorescent excitation light and the first wavelength, a spectrophoto sensor that measures tristimulus values of at least one of the fluorescent excitation light, the first monochromatic light, and the second monochromatic light, and a controller that adjusts an output of at least one of the fluorescent excitation light source, the first light source, and the second light source on the basis of the measured tristimulus values.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: January 7, 2020
    Assignee: Inner Ray, Inc.
    Inventors: Dong Wook Nam, Joo Hyung Hong
  • Patent number: 10527552
    Abstract: In an example, an apparatus is described that includes a light source, a holographic optical element, a sampling apparatus, and a detector. The light source is configured to emit a beam of excitation light. The holographic optical element is arranged to convert the beam of excitation light into a plurality of beams of excitation light. The sampling apparatus is arranged to project the plurality of beams of excitation light onto a surface outside the apparatus as a two-dimensional pattern of projection points. The sampling apparatus is further arranged to collect scattered radiation emitted by the surface in response to the two-dimensional pattern of projection points. The detector detects a frequency shift in the scattered radiation.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: January 7, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Francesco Aieta, Anita Rogacs, Viktor Shkolnikov
  • Patent number: 10527712
    Abstract: A positioning system includes a steerable laser configured to emit a laser beam, an optical receiver, one or more processors, and a memory device. The optical receiver is configured to detect the presence of the laser beam on the optical receiver, measure a received signal strength of light emitted by a luminaire, or both. The memory device stores instructions that, when executed by at least one of the one or more processors cause the positioning system to target the laser beam on the optical receiver, and based on a first angle of the laser beam, a second angle of the laser beam, and an isointense curve associated with the optical receiver and the luminaire, estimate three-dimensional position of the optical receiver relative to the steerable laser source.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: January 7, 2020
    Inventors: Emily W. Lam, Thomas D. C. Little
  • Patent number: 10520438
    Abstract: A collection optics system for a spectrometer and a Raman spectral system including the collection optics system is provided. The collection optics system is configured to selectively collect a Raman signal from scattered light output from a target object, the collection optics system includes a non-imaging collection unit configured to collect the Raman signal and output the Raman signal, the non-imaging collection unit including an entrance surface on which the scattered light is incident and an exit surface through which the Raman signal is output, and a Raman filter provided on a portion of the entrance surface of the non-imaging collection unit and configured to block the scattered light including a fluorescence signal. Therefore, the collection optics system may suppress reception of the fluorescence signal of the scattered light and selectively collect the Raman signal.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: December 31, 2019
    Inventors: Unjeong Kim, Jinyoung Park, Sungmo Ahn, Younggeun Roh, Hongseok Lee
  • Patent number: 10520299
    Abstract: Disclosed are an apparatus for measuring a displacement using a fiber Bragg grating sensor, which is applied to a strain sensor using the fiber Bragg grating sensor, and a method of controlling sensitivity and durability of the same. The apparatus includes: a case forming an external appearance; third and fourth optical fibers having mutually different numbers of strands and installed in the case while being spaced apart from each other by a predetermined interval; and a connection unit installed between the third and fourth optical fibers and fixed at a predetermined position by tension applied to the third and fourth optical fibers, wherein the fiber Bragg grating sensor is installed to one selected from the pair of optical fibers having mutually different numbers of strands, so that measurement sensitivity and durability are controllable.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: December 31, 2019
    Assignee: FBG KOREA INC.
    Inventor: Geum Suk Lee
  • Patent number: 10514335
    Abstract: Systems and methods spectrally and radiometrically calibrate an optical spectrum detected with a color-image sensor of an optical spectrometer. When the color-image sensor includes a Bayer filter, the red-peaked, green-peaked, and blue-peaked spectral responses of the color filters forming the Bayer filter may be used to identify unique spectral signatures in the red, green, and blue color channels. These spectral signatures may be used to associate calibration wavelengths to the pixel locations of the color-image sensor where the spectral signatures are observed. A fitted model may then be used to associate a wavelength to each pixel location of the color-image sensor. These systems and methods account for translational shifts of the optical spectrum on the color-image sensor induced by optical image stabilization, and thus may aid optical spectrometry utilizing a digital camera in a smartphone or tablet computer.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: December 24, 2019
    Assignee: Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Rachel Nicole Ulanch, Richard John Koshel
  • Patent number: 10509330
    Abstract: In an aspect, a plurality of parameters characteristic of the patterned wafer are determined based on measurements of the intensity of electromagnetic radiation after the diffraction thereof at the patterned wafer. The intensity measurements are carried out for at least one used structure and at least one auxiliary structure. The parameters are determined based on intensity values measured during the intensity measurements for respectively different combinations of wavelength, polarization and/or order of diffraction, and also on the basis of correspondingly calculated intensity values, with a mathematical optimization method being applied.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 17, 2019
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Hans-Michael Stiepan, Andy Zott, Ulrich Mantz
  • Patent number: 10502675
    Abstract: Methods of detecting, quantifying and/or characterizing the fouling of a device from a combination of pressure and spectroscopic data are provided. The device can be any device containing components susceptible to fouling. Components can include membranes, pipes, or reactors. Suitable devices include membrane devices, heat exchangers, and chemical or bio-reactors. Membrane devices can include, for example, microfiltration devices, ultrafiltration devices, nanofiltration devices, reverse osmosis, forward osmosis, osmosis, reverse electrodialysis, electro-deionisation or membrane distillation devices. The methods can be applied to any type of membrane, including tubular, spiral, hollow fiber, flat sheet, and capillary membranes. The spectroscopic characterization can include measuring one or more of the absorption, fluorescence, or raman spectroscopic data of one or more foulants. The methods can allow for the early detection and/or characterization of fouling.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: December 10, 2019
    Inventors: Szilard Bucs, Sacco te Lintel Hekkert, Marc Jaap Staal, Johannes Vrouwenvelder
  • Patent number: 10502558
    Abstract: A curvature sensor includes a light source, a flexible light guide including cores, FBG sensors that are provided in the cores and constitute FBG sensor groups at predetermined positions along longitudinal axes of the cores. The curvature sensor includes a detector that detects an optical spectrum of light from the FBG sensors, and a processor that determines a bend position and a bend amount of the light guide. The FBG sensor groups include a first FBG sensor group and a second FBG sensor group next to it. FBG sensors in the first and second FBG sensor groups include gratings having first and second pitches. The first pitch is shorter than the second pitch and is closer to the second pitch than other pitches of gratings of FBG sensors that include gratings having pitches shorter than the second pitch.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: December 10, 2019
    Inventors: Yasuo Sasaki, Eiji Yamamoto
  • Patent number: 10502621
    Abstract: Hyperspectral imaging systems and methods for hyperspectral imaging of scenes in apparent motion are described. Each acquired image includes a spatial map of the scene which facilitates pointing, focusing, and data analysis. The spectral measurement parameters can be configured dynamically in order to optimize performance such as spectral resolution, storage capacity, and transmission bandwidth, without physical or optical reconfiguration of the imaging system, and with no need for moveable mechanical parts. The system achieves high spectral and spatial resolution, is simple, compact, and lightweight, thereby providing an efficient hyperspectral imaging system for aircraft or spaceborne imaging systems.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Urugus S.A.
    Inventors: Gerardo Gabriel Richarte, Agustina Pose, Juan Manuel Vuletich, Pablo Jais, David Vilaseca, Emiliano Kargieman
  • Patent number: 10502624
    Abstract: The present invention provides a method and compact apparatus for laser induced breakdown atomic emission spectroscopy from a targeted sample having a laser generating a laser beam, the laser beam directed to the sample, optical means for manipulating the laser beam in order maximize laser fluency at the target surface of the sample, the laser beam generating ablation and plasma emission from the sample at the target surface, an emission spectrometer having a detector for detecting a plasma plume from the plasma emission.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: December 10, 2019
    Assignee: National Research Council Canada
    Inventors: Paul Bouchard, Mohamad Sabsabi, Francois Doucet, Lütfü Celebi Özcan
  • Patent number: 10495449
    Abstract: The present invention includes: a laser that can change the emission wavelength of light; a light-emitting fiber that emits light output from the laser onto a rotor; a concave surface that is provided in a recessed manner in the rotor and reflects the light emitted from the light-emitting fiber; a light-receiving fiber that receives the light reflected by the concave surface; a photodetector that detects the intensity of the light received by the light-receiving fiber; and a control device that controls the laser and performs optical measurement. The intensity is detected by the photodetector while changing the emission wavelength of the laser; the emission wavelength at which the intensity is largest is selected; and optical measurement is performed by detecting the intensity of light reflected by the concave surface by using light having an emission angle determined by the selected emission wavelength.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: December 3, 2019
    Inventors: Tomoyuki Onishi, Akio Kondou
  • Patent number: 10488296
    Abstract: A method of determining stress variations over time in an undersea pipe for transporting fluids, the method comprising: installing along the entire length of the pipe (1) at least one distributed optical fiber sensor (2-1 to 2-4) using Rayleigh backscattering, the sensor being dedicated to measuring at least one degree of freedom of movement variation over time in the pipe at each cross section of the pipe; continuously measuring movement variation of the optical fiber sensor over time; and determining stress variations over time at each point in the pipe by time integration of the measured movement variation of the optical fiber sensor.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 26, 2019
    Assignee: Saipem S.A.
    Inventor: Axel Sundermann
  • Patent number: 10488254
    Abstract: A spectrometer arrangement with two-dimensional spectrum, comprising a first dispersing element for spectral separation of radiation in a main dispersion direction, an imaging optics for imaging the radiation entering into the spectrometer arrangement through an entrance slit in an image plane for producing a two-dimensional spectrum, and a detector array with a two-dimensional arrangement of a plurality of detector elements in the image plane, wherein a reflector, a refractor, and/or a lens array are arranged in the beam path at a location where the dispersed, monochromatic beams are separated from one another, and the reflector, the refractor, and/or the lens array have a surface in the form of a freeform surface, such that area occupied by selected images of the entrance slit in the case of different wavelengths in the image plane is optimized over a selected spectral region of the two-dimensional spectrum.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 26, 2019
    Assignee: Analytik Jena AG
    Inventors: Stefan Münch, Michael Okruss