Patents Examined by Sunghee Y Gray
  • Patent number: 11327410
    Abstract: A metrology apparatus for and a method of determining a characteristic of interest relating to at least one structure on a substrate. The metrology apparatus comprises a sensor and an optical system. The sensor is for detecting characteristics of radiation impinging on the sensor. The optical system comprises an illumination path and a detection path. The optical system is configured to illuminate the at least one structure with radiation received from a source via the illumination path. The optical system is configured to receive radiation scattered by the at least one structure and to transmit the received radiation to the sensor via the detection path.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: May 10, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Arie Jeffrey Den Boef, Ronald Joseph Antonius Van Den Oetelaar
  • Patent number: 11320258
    Abstract: An apparatus and method for detecting edges or for seam tracking when machining workpieces by means of a laser beam, e.g. joining or cutting. The present invention provides an apparatus for seam tracking of the process in the laser material processing, comprising at least two separate illumination elements, each emitting differently polarized light and a polarization camera.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: May 3, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventor: Mathias Corneli╬▓en
  • Patent number: 11318472
    Abstract: A device comprising: a first zone comprising an attachment site; a first pathway; a second pathway and a means for creating a second medium comprised of aqueous microdroplets in a carrier; a microdroplet manipulation zone comprising: a first composite wall comprised of a first transparent substrate; a first transparent conductor layer on the substrate; a photoactive layer activated by electromagnetic radiation; and a first dielectric layer on the conductor layer; a second composite wall comprised of a second substrate; a second conductor layer on the substrate; and optionally a second dielectric layer on the conductor layer; an A/C source; a source of first electromagnetic radiation; means for manipulating the points of impingement of the electromagnetic radiation on the photoactive layer; an detection zone disposed downstream of the microdroplet manipulation zone or integral therewith; and a fluorescence or Raman-scattering detection system.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: May 3, 2022
    Assignee: LIGHTCAST DISCOVERY LTD
    Inventors: Thomas Henry Isaac, Pedro Cunha, Eoin Sheridan, David Love, Rebecca Palmer, Douglas J. Kelly, Gareth Podd
  • Patent number: 11323152
    Abstract: A sampling gate comprising a first frequency input coupled to a first frequency path from a broadband photodiode. The sampling gate also includes a positive bias input coupled to a positive offset portion of a second frequency path from the broadband photodiode. The sampling gate also includes a negative bias input coupled to a negative offset portion of the second frequency path from the broadband photodiode. The sampling gate combines a first frequency signal from the first frequency path and a second frequency signal from the second frequency path to create a combined broadband frequency signal from the broadband photodiode.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 3, 2022
    Assignee: TEKTRONIX, INC.
    Inventor: Noah Brummer
  • Patent number: 11299778
    Abstract: Apparatus and methods for producing ultrashort optical pulses are described. A high-power, solid-state, passively mode-locked laser can be manufactured in a compact module that can be incorporated into a portable instrument for biological or chemical analyses. The pulsed laser may produce sub-100-ps optical pulses at a repetition rate commensurate with electronic data-acquisition rates. The optical pulses may excite samples in reaction chambers of the instrument, and be used to generate a reference clock for operating signal-acquisition and signal-processing electronics of the instrument.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 12, 2022
    Assignee: Quantum-Si Incorporated
    Inventors: Jonathan M. Rothberg, Jason W. Sickler, Lawrence C. West, Faisal R. Ahmad, Paul E. Glenn, Jack Jewell, John Glenn, Jose Camara, Jeremy Christopher Jordan, Todd Rearick, Farshid Ghasemi, Jonathan C. Schultz, Keith G. Fife
  • Patent number: 11300507
    Abstract: An optical measurement device and an optical measurement method are provided. The optical measurement device includes a test backplane, a light emitter, a center point detector and a movement device. The movement device is provided on the test backplane, and configured to carry a to-be-tested sample. The light emitter is configured to display a first center point on the to-be-tested sample, and the first center point corresponds to a center point of the test backplane. The center point detector is configured to detect a second center point and display the second center point on the to-be-tested sample, and the second center point is a center point of the to-be-tested sample. The movement device is further configured to move the to-be-tested sample, such that the first center point and the second center point coincide with each other.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: April 12, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongqiao Xu, Qiang Huang, Shufeng Wang, Jinbo Xu
  • Patent number: 11293876
    Abstract: A measurement method for visualizing the flow of a fluid that includes: a preparation process where a photochromic compound, whose amount of absorption of light changes upon irradiation with transformation-inducing light, is dissolved in the fluid; a transformation-inducing irradiation process where the fluid is irradiated with transformation-inducing light that causes photochromism; and a post-transformation imaging process where an image of the fluid is taken after irradiation by the transformation-inducing light. During the post-transformation imaging process, a first image is generated by taking an image of the fluid by using first light in the first wavelength range in which the amount of absorption of light changes upon irradiation with transformation-inducing light.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 5, 2022
    Assignees: TOKAI UNIVERSITY EDUCATION SYSTEM, KANOMAX JAPAN INC.
    Inventors: Akihiko Azetsu, Ikkei Kitajima, Kazaki Kuratsuji, Masayuki Ochiai
  • Patent number: 11287248
    Abstract: For three-dimensional topography measurement of a surface of an object patterned illumination is projected on the surface through an objective. A relative movement between the object and the objective is carried out, and plural images of the surface are recorded through the objective by a detector. The direction of the relative movement includes an oblique angle with an optical axis of the objective. Height information for a given position on the surface is derived from a variation of the intensity recorded from the respective position. Also, patterned illumination and uniform illumination may be projected alternatingly on the surface, while images of the surface are recorded during a relative movement of the object and the objective along an optical axis of the objective. Uniform illumination is used for obtaining height information for specular structures on the surface, patterned illumination is used for obtaining height information on other parts of the surface.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 29, 2022
    Assignee: KLA-Tencor Corporation
    Inventors: Guoheng Zhao, Maarten van der Burgt, Sheng Liu, Andy Hill, Johan De Greeve, Karel van Gils
  • Patent number: 11280698
    Abstract: Non-contact methods of predicting an insertion loss of a test optical fiber connector are disclosed. Light is sent down the at least one optical fiber of the connector in the fundamental mode to emit an output light beam. The output-beam image is captured at different distances from the fiber end faces to define multiple output-beam images each associated with one of the multiple measurement positions. A Gaussian curve is then fitted to the multiple output-beam images to determine a mode field diameter, an offset, and a tilt of the output light beam. A Gaussian field model that incorporates the offset, the tilt, and the mode-field diameter is then used to predict the insertion loss when connecting to a reference optical fiber of a reference optical fiber connector.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: March 22, 2022
    Assignee: Corning Research & Development Corporation
    Inventors: Jinxin Huang, Dmitri Vladislavovich Kuksenkov, William James Miller, Nikolay Timofeyevich Timofeev, William Allen Wood
  • Patent number: 11275012
    Abstract: A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: March 15, 2022
    Assignee: PLEXAR ASSOCIATES, INC.
    Inventors: Timothy J. Bencic, David P. Rohler, Amy F. Fagan, Steven H. Izen, Arjun K. Maniyedath
  • Patent number: 11268904
    Abstract: An image forming apparatus and method are disclosed. A detection light is radiated to a medium. An amount of transmitted light, an amount of regular reflected light, and an amount of diffuse reflected light are detected. A reflected-light-amount-equivalent value is obtained when the amount of regular reflected light is standardized based on the amount of diffuse reflected light. A glossy sheet-thickness coefficient is calculated by adding the reflected-light-amount-equivalent value to a transmitted-light-amount-equivalent value that is based on the amount of transmitted light. The weight property of the medium is determined, based on the glossy sheet-thickness coefficient, wherein the weight property comprises a basis weight or a thickness of the medium.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 8, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Yuichiro Tomishima
  • Patent number: 11268978
    Abstract: The present disclosure provides a tip-enhanced Raman spectroscope system. The system includes a laser emitting unit, a laser excitation unit, a first dichroic beam splitter, a first Raman spectrometer, and a confocal detecting unit. The laser excitation unit includes a sample stage and a first scanning probe. The sample stage is configured to have a sample disposed thereon such that a first incident laser beam emitted from the laser emitting unit is transmitted to the sample to excite first scattered light. The first dichroic beam splitter is configured to split a first Raman scattered light from the first Rayleigh scattered light. The first Raman spectrometer is disposed on a first Raman optical path of the first Raman scattered light. The confocal detecting unit is disposed on a first Rayleigh optical path of the first Rayleigh scattered light to image the sample.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 8, 2022
    Assignee: NATIONAL INSTITUTE OF METROLOGY, CHINA
    Inventors: Zhen-Dong Zhu, Si-Tian Gao, Wei Li, Shi Li, Jing-Tao Xu
  • Patent number: 11269073
    Abstract: An electronic device includes an infrared distance measurement apparatus and a touch panel. The touch panel covers the infrared distance measurement apparatus. The infrared distance measurement apparatus includes an infrared-light-emitting tube and at least two infrared-light-receiving tubes. The at least two infrared-light-receiving tubes include a far-channel receiving tube and a near-channel receiving tube, and a distance between the far-channel receiving tube and the infrared-light-emitting tube is greater than a distance between the near-channel receiving tube and the infrared-light-emitting tube.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: March 8, 2022
    Assignee: VIVO MOBILE COMMUNICATION CO., LTD.
    Inventors: Sheng Li, Xuejie Yang
  • Patent number: 11262188
    Abstract: Sensing systems include a tube defining a Fabry-Perot cavity and an optical fiber including a distal end disposed within the Fabry-Perot cavity and a proximal end. A corrodible material caps the Fabry-Perot cavity. Devices for sensing corrosion of downhole equipment include an optical fiber with a corrodible material disposed over a distal end of the optical fiber. Systems for sensing a condition in equipment include an optical fiber with a fiber Bragg grating proximate a distal end thereof and a mass of sensor material coupled to the distal end of the optical fiber. The mass of sensor material is suspended from above the fiber Bragg grating. Other systems for sensing a condition in a wellbore include an optical fiber and a plurality of fiber Bragg gratings along a length thereof. A plurality of sensor materials are coupled to the optical fiber and surround respective fiber Bragg gratings.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: March 1, 2022
    Assignee: Baker Hughes Holdings LLC
    Inventors: Anusha Chilukuri, Othon R. Monteiro
  • Patent number: 11262239
    Abstract: The present disclosure relates to a spectral sensor for detection of individual light-emitting particles. The sensor is comprising an array of photo-sensitive detectors for detecting light emitted by said individual light-emitting particles and a filter array comprising a plurality of different band-stop filters. The filter array is configured to transmit wavelengths in a detectable wavelength region to the array of photo-sensitive detectors, and wherein each band-stop filter is associated with one or more particular photo-sensitive detectors, and the plurality of different band-stop filters are configured to reflect different wavelength intervals within said detectable wavelength region so that each photo-sensitive detector of the array is configured to detect the wavelengths of the detectable wavelength region other than the reflected wavelength interval of the band-stop filter being associated with the photo-sensitive detector.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: March 1, 2022
    Assignee: IMEC VZW
    Inventors: Peter Peumans, Pol Van Dorpe, Niels Verellen
  • Patent number: 11243140
    Abstract: The output profile of light from a multimode optical fiber is determined using a geometrical optics approach where the rays launched into the fiber conform to LP-modes of the fiber. This output profile can then be employed as an input to a second fiber to calculate the transmission losses of a coupler that introduces various coupling inaccuracies, such as lateral offset, axial offset, and angular offset.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: February 8, 2022
    Assignee: CommScope Technologies LLC
    Inventors: Sander Johannes Floris, Bastiaan Pieter De Hon, Rutger Wilhelmus Smink, Antonius Bernardus Gerardus Bolhaar, Earl R. Parsons
  • Patent number: 11233373
    Abstract: A radiation-emitting semiconductor arrangement includes at least one semiconductor body having an active region that generates a primary radiation, and includes a radiation conversion element, wherein the radiation conversion element converts the primary radiation at least partially into a secondary radiation during operation of the semiconductor arrangement, the radiation conversion element emits the secondary radiation at a narrow angle, the radiation conversion element emits the secondary radiation into a projected spatial angle of not more than ?/5, and the semiconductor arrangement includes an optical deflector movable during operation of the semiconductor arrangement.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: January 25, 2022
    Assignee: OSRAM OLED GmbH
    Inventors: Peter Brick, Hubert Halbritter
  • Patent number: 11231409
    Abstract: An apparatus for measuring hemolysis in a cartridge based automated blood analyzer is described. The apparatus allows hemolysis testing to be performed on a sample which is presented as a whole blood sample for other testing by the cartridge based automated blood analyzer. A disposable module is configured for optically analyzing one or more plasma analytes in a flow cell while red blood cells are acoustically separated from plasma in the flow cell.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: January 25, 2022
    Assignee: INSTRUMENTATION LABORATORY COMPANY
    Inventors: Brian Joseph Bosy, Josef Kerimo
  • Patent number: 11231407
    Abstract: A method may comprise sampling a wellbore fluid; analyzing the wellbore fluid and determining a presence of a graphene-like substrate, a concentration of the graphene-like substrate, or both, in the wellbore fluid; and correlating the presence and the concentration of the graphene-like substrate to at least one subterranean formation characteristic.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: January 25, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James M. Price, Christopher Michael Jones, Jian Li, Julia Golovko
  • Patent number: 11215556
    Abstract: An optical detection system includes a sample portion accommodating a sample, a wave source emitting waves to the sample portion, an optical portion provided on a path of an output wave output from the sample portion, and comprising a first spatial light modulator that modulates part of the output wave to a first wave and a second spatial light modulator that modulates part of the output wave to a second wave, a lens portion focusing the first wave and the second wave output from the optical portion, and a detection portion detecting a focused wave that is focused by the lens portion, in which the first spatial light modulator and the second spatial light modulator modulate the output wave such that the first wave and the second wave have destructive interference with respect to the sample under an already known condition.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: January 4, 2022
    Assignee: THE WAVE TALK, INC.
    Inventors: Hui Jun Park, Kyeo Reh Lee, Seung Woo Shin, Yongkeun Park