Infrared Responsive Patents (Class 250/338.1)
  • Patent number: 11506599
    Abstract: A fluid sensor includes a substrate having a top main surface region, wherein the top main surface region of the substrate forms a common system plane of the fluid sensor, a thermal radiation emitter on the top main surface region of the substrate, an optical filter structure on the top main surface region of the substrate, a waveguide on the main top surface region of the substrate, and a thermal radiation detector on the top main surface region of the substrate, wherein the thermal radiation detector provides a detector output signal based on a radiation strength of the filtered thermal radiation received from the waveguide.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 22, 2022
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Thomas Grille, Cristina Consani, Peter Irsigler, Bernhard Jakoby, Thomas Krotscheck Ostermann, Gerald Puehringer, Christian Ranacher, Andreas Tortschanoff
  • Patent number: 11456548
    Abstract: A method comprises inserting a press-fit element into a through hole on a substrate board. The method also comprises obtaining a target heat-application plan for the press-fit element. The method also comprises applying heat to the press-fit element. The method also comprises determining that the target heat-application plan has been completed. The method also comprises withdrawing heat from the press-fit element.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: September 27, 2022
    Assignee: International Business Machines Corporation
    Inventors: Mark K. Hoffmeyer, Theron Lee Lewis
  • Patent number: 11454546
    Abstract: A pixel for an image sensor includes a resistive microbolometer sensor portion, a visible image sensor portion, and an output path. The resistive microbolometer sensor portion outputs a signal corresponding to an infrared (IR) image sensed by the resistive microbolometer sensor portion. The resistive microbolometer sensor portion uses no bias current. The visible image sensor portion outputs a signal corresponding to a visible image sensed by the visible image sensor portion. The output path is shared by the resistive microbolometer sensor portion and the visible image sensor portion, and may be controlled to selectively output the signal corresponding to the IR image, the signal corresponding to the visible image, or a fused image based on the IR image and the visible image. The resistive microbolometer sensor portion may sense a near infrared image or a longwave infrared image.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: September 27, 2022
    Inventors: Kwang Oh Kim, Yibing Michelle Wang, Radwanul Hasan Siddique
  • Patent number: 11442151
    Abstract: A holographic waveguide LIDAR comprises a transmitter waveguide coupled to a beam deflector and a receiver waveguide coupled to a detector module. The transmitter waveguide contains an array of grating elements for diffracting a scanned laser beam into a predefined angular ranges. The receiver waveguide contains an array of grating elements for diffracting light reflected from external points within a predefined angular range towards the detector module.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: September 13, 2022
    Assignee: DigiLens Inc.
    Inventors: Milan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant
  • Patent number: 11430906
    Abstract: An optical device includes a substrate, an electronic component and a lid. The electronic component is disposed on the substrate. The lid is disposed on the substrate. The lid has a first cavity over the electronic component and a second cavity over the first cavity. The sidewall of the second cavity is inclined.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 30, 2022
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Chang Chin Tsai, Yu-Che Huang, Hsun-Wei Chan
  • Patent number: 11422306
    Abstract: An optical subassembly includes a planar dielectric waveguide structure that is deposited at temperatures below 400 C. The waveguide provides low film stress and low optical signal loss. Optical and electrical devices mounted onto the subassembly are aligned to planar optical waveguides using alignment marks and stops. Optical signals are delivered to the submount assembly via optical fibers. The dielectric stack structure used to fabricate the waveguide provides cavity walls that produce a cavity, within which optical, optoelectronic, and electronic devices can be mounted. The dielectric stack is deposited on an interconnect layer on a substrate, and the intermetal dielectric can contain thermally conductive dielectric layers to provide pathways for heat dissipation from heat generating optoelectronic devices such as lasers.
    Type: Grant
    Filed: May 17, 2020
    Date of Patent: August 23, 2022
    Inventors: Suresh Venkatesan, Yee Loy Lam
  • Patent number: 11408781
    Abstract: A thermal sensor package for earbuds includes two thermopile sensor elements on a single thermopile sensor chip, and the two thermopile sensor elements are separated by a block wall of a cap. One of the thermopile sensor elements senses external infrared thermal radiation through a window of the cap, and the other thermopile sensor element senses internal infrared thermal radiation from a package structure as a basis for correcting compensation. Therefore, the foregoing thermal sensor package for earbuds can quickly correct a measurement error caused by the package structure to improve the measurement accuracy. In addition, the forgoing thermal sensor package for earbuds has a simple packaging step and is easy to arrange a silicon based infrared lens to expand its application.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: August 9, 2022
    Assignee: ORIENTAL SYSTEM TECHNOLOGY INC.
    Inventors: Chein-Hsun Wang, Ming Le, Yu-Chih Liang, Tung Yang Lee, Chih-Yung Tsai
  • Patent number: 11404676
    Abstract: The present invention provides a display screen and a display device, and the display screen includes at least one first display region and a second display region located outside the at least one first display region; the at least one first display region includes a substrate disposed in the at least one first display region and a light-shielding layer disposed on the substrate; wherein, the light-shielding layer includes at least one first opening located in a non-pixel region between neighboring pixels, and external light enters the display screen through the at least one first opening.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 2, 2022
    Inventors: Jun Li, Liang Sun
  • Patent number: 11397158
    Abstract: Systems and methods for laser stimulated lock-in thermography (LLT) crack detection are provided. The system includes a spatial light modulator and a controller. The spatial light modulator reflects a laser beam to focus the laser beam onto a sample for detection of a crack, hole or scratch. The controller is coupled to the spatial light modulator and controls operation of the spatial light modulator to switch focus of the laser beam onto the sample between a plurality of LLT focus configurations for detection of the crack, hole or scratch on the sample. The method includes using a first one of the plurality of LLT configurations for coarse scanning of the sample to detect a crack, hole or scratch on the sample and, when a crack, hole or scratch is detected on the sample, switching to a second one of the plurality of LLT configurations for fine scanning of the crack, hole or scratch on the sample to determine one or more parameters of the crack, hole or scratch on the sample.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 26, 2022
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Lu Ding, Jinghua Teng
  • Patent number: 11393116
    Abstract: This invention provides an information processing apparatus which comprises an image acquiring unit configured to acquire images captured by a plurality of image capturing devices, a contour extracting unit configured to extract a contour of an object from the image acquired by the image capturing device, a matching unit configured to match corresponding points on the contours between the images, a depth calculating unit configured to calculate a depth of the matched point, a reliability extracting unit configured to acquire a reliability of the depth based on an angle formed by an epipolar line and a tangential direction of the contour, and a depth correcting unit configured to correct the depth based on the depth and the reliability.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: July 19, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masashi Nakagawa
  • Patent number: 11374135
    Abstract: A sensor may be provided, including a substrate having a first semiconductor layer, a second semiconductor layer, and a buried insulator layer arranged between the first semiconductor layer and the second semiconductor layer. The sensor may further include a photodiode arranged in the first semiconductor layer; and a quenching resistive element electrically connected in series with the photodiode. The quenching resistive element is arranged in the second semiconductor layer, and the quenching resistive element is arranged over the photodiode but separated from the photodiode by the buried insulator layer.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: June 28, 2022
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Lanxiang Wang, Shyue Seng Tan, Eng Huat Toh
  • Patent number: 11359973
    Abstract: A MEMS device according to an example embodiment of the present disclosure includes: a lower substrate; an infrared sensor formed on the lower substrate; and a lower bonding pad disposed to cover the infrared sensor. The infrared sensor includes: a metal pad formed on an upper surface of the lower substrate and electrically connected to a detection circuit; a reflective layer formed on the upper surface of the lower substrate and reflecting an infrared band; an absorption plate disposed to be spaced apart from an upper portion of the reflective layer and absorbing infrared rays to change resistance; and an anchor formed on the metal pad to support the absorption plate and to electrically connect the metal pad and the absorption plate to each other. The reflective layer has a curved or stepped shape such that a distance between the reflective layer and the absorption plate varies depending on a position of the reflective layer.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: June 14, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong-Kwon Lee, Jae-Sub Oh, Jongcheol Park
  • Patent number: 11340443
    Abstract: The present invention is an optical assembly featuring an architecture which allows adjustment of both objective lenses and the electronic sensing assemblies in the optical assembly. Electrical connections in the housings of the various subassemblies allow focusing adjustment by rotational and/or translational movement for increased adjustability.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 24, 2022
    Assignee: Maranon, Inc.
    Inventor: James Thomas
  • Patent number: 11327008
    Abstract: A gas measurement system as disclosed can include a coherent light source, which emits a light beam; a detector; a beam path formed between the light source) and the detector; and a gas cell arranged in the beam path such that the detector receives light transmitted through the gas cell. The gas cell can include a porous ceramic and have an optical path length which is a multiple of the actual layer thickness of the gas cell. A optical element can be arranged in the beam path between the light source and the gas cell with the light beam emitted by the light being widened and unfocussed as the light beam enters the gas cell.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: May 10, 2022
    Assignee: METTLER-TOLEDO GMBH
    Inventors: Francesca Venturini, Pär Bergström, Martin Hertel
  • Patent number: 11292174
    Abstract: A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 5, 2022
    Assignee: Aladdin Manufacturing Corporation
    Inventor: Thomas R. Clark
  • Patent number: 11293965
    Abstract: Various approaches can be used to interrogate a surface such as a surface of a layered semiconductor structure on a semiconductor wafer. Certain approaches employ Second Harmonic Generation and in some cases may utilize pump and probe radiation. Other approaches involve determining current flow from a sample illuminated with radiation. Decay constants can be measured to provide information regarding the sample. Additionally, electric and/or magnetic field biases can be applied to the sample to provide additional information.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: April 5, 2022
    Assignee: FemtoMetrix, Inc.
    Inventors: Viktor Koldiaev, Marc Kryger, John Changala
  • Patent number: 11243118
    Abstract: An electromagnetic wave sensor that limits the influence on bolometer membranes that is caused by heat from a local heat source is provided. Electromagnetic wave sensor has first substrate, second substrate that faces first substrate so as to form inner space between first substrate and second substrate, wherein second substrate transmits infrared rays; a plurality of bolometer membranes that is provided in inner space and that is supported by second substrate; local heat source that is formed in first substrate; first electric connection member that connects first substrate to second substrate; and lead that extends on or in second substrate and that connects first electric connection member to bolometer membrane.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: February 8, 2022
    Assignee: TDK Corporation
    Inventors: Naoki Ohta, Shinji Hara, Susumu Aoki, Eiji Komura, Akimasa Kaizu
  • Patent number: 11234430
    Abstract: One nonlimiting variation of a detection arrangement includes one or more sensors each structured to detect at least one biochemical substance indicative of biochemistry of one or more target insect species and provide a corresponding sensor signal, a controller responsive to the sensor signal of each of the one or more sensors to determine if the one or more insect species are present and generate a corresponding output signal, and an indicator responsive to the output signal to indicate the presence of the one or more insect species.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 1, 2022
    Assignee: CORTEVA AGRISCIENCE LLC
    Inventors: Paul W. Borth, Nailah Orr, Peter N. Scherer, Brian M. Schneider, Mike P. Tolley, Christopher J. Voglewede, Gary D. Crouse, David G. McCaskill, Kerrm Y. Yau, Edward L. Olberding, Joseph J. DeMark, Marc L. Fisher
  • Patent number: 11237103
    Abstract: There is described an electronic device testing system for testing an electronic device having a substrate on which is printed a metamaterial structure using an ink. The electronic device testing system generally has: a terahertz radiation emitter configured to emit an incident terahertz radiation beam to be incident on the metamaterial structure of the substrate, the incident terahertz radiation beam having power at least at the terahertz resonance frequency of the metamaterial structure; a terahertz radiation receiver configured to receive an outgoing terahertz radiation beam outgoing from the metamaterial structure and to measure an amplitude of an electric field of the outgoing terahertz radiation beam at least at the terahertz resonance frequency; and a controller configured to determine a conductivity value indicative of a conductivity of the ink based on said amplitude of the electric field of the outgoing terahertz radiation beam.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: February 1, 2022
    Assignee: SOCOVAR SEC
    Inventors: François Blanchard, Mariia Zhuldybina
  • Patent number: 11231316
    Abstract: A system includes a first tube of a plurality of tubes, the first tube having a first end and a second end. The system further includes a light detector positioned at the second end of the first tube. The light detector is configured to detect an incoming light and determine light intensity information of the incoming light. The system further includes a material coupled to the first end of the first tube. The material is configured to change in transparency. The system further comprises a processor coupled to the light detector and the material. The processor is configured to receive the light intensity information from the light detector. The processor is further configured to determine that an intensity of the incoming light is above a threshold, and, in response to determining that the intensity is above the threshold, cause a change in transparency of the material.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: January 25, 2022
    Assignee: Lockheed Martin Corporation
    Inventor: Kurt M. Chankaya
  • Patent number: 11226285
    Abstract: System and Methods may be provided for performing chemical spectroscopy on samples from the scale of nanometers with surface sensitivity even on very thick sample. In the method, a signal indicative of infrared absorption of the surface layer is constructed by illuminating the surface layer with a beam of infrared radiation and measuring a probe response comprising at least one of a resonance frequency shift and a phase shift of a resonance of a probe in response to infrared radiation absorbed by the surface layer.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: January 18, 2022
    Assignee: Bruker Nano, Inc.
    Inventors: Kevin Kjoller, Craig Prater
  • Patent number: 11200697
    Abstract: An ambient temperature calibration process includes, in accordance with an embodiment, determining an ambient temperature calibration value for a global external resistance associated with a read out integrated circuit (ROIC) of an image capture component comprising a sensor array comprising a focal plane array of microbolometers arranged on the ROIC; determining an ambient temperature calibration value for a sensor integration time associated with the ROIC; and determining an ambient temperature calibration mapping for an offset mapping associated with the ROIC.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: December 14, 2021
    Assignee: FLIR Systems AB
    Inventors: Jonas Sandsten, Per Lilja, Henning Hagman, Marta Barenthin-Syberg, Tien Nguyen
  • Patent number: 11193821
    Abstract: One or more embodiments are directed to ambient light sensor packages, and methods of making ambient light sensor packages. One embodiment is directed to an ambient light sensor package that includes an ambient light sensor die having opposing first and second surfaces, a light sensor on the first surface of the ambient light sensor die, one or more conductive bumps on the second surface of the ambient light sensor die, and a light shielding layer on at least the first surface and the second surface of the ambient light sensor die. The light shielding layer defines an opening over the light sensor. The ambient light sensor package may further include a transparent cover between the first surface of the ambient light sensor die and the light shielding layer, and an adhesive that secures the transparent cover to the ambient light sensor die.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 7, 2021
    Assignee: STMicroelectronics Pte Ltd
    Inventors: Laurent Herard, David Gani
  • Patent number: 11181424
    Abstract: A process for manufacturing at least one microbolometer comprising a sensitive material based on vanadium oxide containing nitrogen as additional chemical element, includes steps of determining a non-zero effective amount of the additional chemical element starting from which the sensitive material, having undergone a step of exposure to a temperature Tr for a duration ?tr, has an electrical resistivity ?a|r at ambient temperature greater than or equal to 50% of the native value ?a of said sensitive material at ambient temperature; producing the sensitive material in a thin layer having an amount of the additional chemical element greater than or equal to the effective amount determined beforehand, the sensitive material being amorphous and having an electrical resistivity of between 1 and 30 ?·cm; and exposing the sensitive material to a temperature Tr for a duration ?tr.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: November 23, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Denis Pelenc, Xavier Zucchi, Claire Vialle, Valerie Goudon, Abdelkader Aliane
  • Patent number: 11174044
    Abstract: An ice accretion apparatus comprises a column having a longitudinal axis, a side wall, and a central chamber having top and bottom ends. It also comprises a top unit which closes the top end of the chamber and includes a droplet discharge device for producing water droplets, a bottom unit which closes the bottom end of the chamber and includes a target, and chamber cooling means configured to cool the chamber during a test and thereby to cool the water droplets, whereby, in use during the test, a layer of accreted ice is built up on the target.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: November 16, 2021
    Assignee: GKN Aerospace Services Limited
    Inventors: Steven Mark Houghton, Susanna Halls
  • Patent number: 11155487
    Abstract: Provided is a method for manufacturing an infrared-transmissive lens having an excellent surface quality. A method for manufacturing an infrared-transmissive lens includes firing a preform of a chalcogenide glass in an inert gas atmosphere to obtain a fired body and then subjecting the fired body to hot press molding.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 26, 2021
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Yoshimasa Matsushita, Fumio Sato
  • Patent number: 11137347
    Abstract: The invention is used to ascertain a sun protection factor for light, for example for cosmetics and sunscreens for which a sun protection factor (SPF) is specified. Two measurements of the light backscattering on the skin surface are carried out in vivo or in vitro or on skin models (animal skin models or artificial skin models) before and after applying the radiation protection means onto the skin, and the sun protection factor is ascertained therefrom. In contrast to standard methods used until now, the distance between the lighting surface and the detection surface on the skin is ascertained for the irradiation path of the measurement method. The skin lighting dose used during the measurement lies below harmful limits. The sun protection factor can be ascertained according to previous standards or for additional wavelengths or wavelength ranges (e.g. UVA, VIS, NIR, IR).
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: October 5, 2021
    Assignee: COURAGE + KHAZAKA ELECTRONIC GMBH
    Inventors: Jürgen Helfmann, Ingo Gersonde
  • Patent number: 11125623
    Abstract: Satellite onboard imaging systems having a look-down view and a toroidal view of the Earth are disclosed. In one embodiment, a satellite onboard imaging systems include an infrared sensing system and a controller. The infrared sensing system includes a first imager configured to have a first field of view that observes a look-down view of the Earth from a satellite and a second imager configured to have a second field of view that observes a toroidal view of the Earth centered at the satellite. The controller is coupled to the first imager and the second imager and operable to process image data from the first imager and the second imager. The controller is further operable to output indications of thermal energy of an identical, or different objects based on the first thermal image signal, the second thermal image signal, or both.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 21, 2021
    Assignee: L3 Cincinnati Electronics Corporation
    Inventors: Gregory Gosian, Dave Hartup
  • Patent number: 11118961
    Abstract: An imaging apparatus is configured of a first structure 20 and a second structure 40, in which the first structure 20 includes a first substrate 21, a plurality of temperature detection devices 15 formed on the first substrate 21 and configured to detect a temperature on the basis of an infrared ray, drive lines 72, and signal lines 71, the second structure 40 includes a second substrate 41, and a drive circuit provided on the second substrate 41 and covered with a covering layer 43, the first substrate 21 is bonded to the covering layer 43, a cavity 50 is provided between each temperature detection device 15 and the covering layer 43, and the drive lines 72 and the signal lines 71 are electrically connected to the drive circuit.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: September 14, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Hajime Hosaka, Yoshikazu Nitta, Kenichi Okumura, Shunichi Sukegawa
  • Patent number: 11118980
    Abstract: To provide an infrared sensor that allows heat to be efficiently transferred from an insulating film to a heat sensitive element and has a good responsivity. The infrared sensor according to the present invention includes an insulating film 2; a pair of first adhesive electrodes 3A that is patterned on either surface of the insulating film; a pair of first terminal electrodes 4A that is patterned on either surface of the insulating film; a first heat sensitive element 5A that is provided on either surface of the insulating film and is connected to the pair of first adhesive electrodes; a pair of first pattern wiring parts 6A that is patterned on either surface of the insulating film with one end thereof being connected to the pair of first adhesive electrodes and the other end thereof being connected to the pair of first terminal electrodes; and a heat transfer film 7.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 14, 2021
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kenji Nakamura, Kazuyoshi Tari, Shingo Hirano
  • Patent number: 11105685
    Abstract: Passive detector structures for imaging systems are provided which implement unpowered, passive front-end detector structures with direct-to-digital measurement data output for detecting incident photonic radiation in various portions (e.g., thermal (IR), near IR, UV and visible light) of the electromagnetic spectrum.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: August 31, 2021
    Assignee: DIGITAL DIRECT IR, INC.
    Inventors: Peter N. Kaufman, Howard E. Carpenter
  • Patent number: 11101896
    Abstract: Photo-resonator optical detectors and optical receiver systems incorporating same, In one example, an optically resonant detector includes a housing having an optical window, a photodetector disposed within the housing, and an optical resonator disposed in optical alignment with the photodetector within the housing and positioned between the optical window and the photodetector, the optical resonator being configured to receive an input optical signal via the optical window and to provide an output optical signal to the photodetector.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 24, 2021
    Assignee: RAYTHEON COMPANY
    Inventors: Andrew Kowalevicz, Gary M. Graceffo, Benjamin P. Dolgin
  • Patent number: 11092546
    Abstract: Provided are spectrometers utilizing surface plasmons and surface plasmon resonance. The spectrometer includes a substrate including a region having a permittivity slope (varying permittivity), a dielectric spacer configured to correspond to the region having a permittivity slope, and a detector configured to face the region having a permittivity slope with the dielectric spacer therebetween. The region having a permittivity slope includes a region having a dopant concentration slope (varying concentration).
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: August 17, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wonjae Joo, Jie Yao, Xi Wang
  • Patent number: 11092730
    Abstract: An object is to provide an optical element that is thin and can gather and reflect light in a specific wavelength range in a predetermined direction, and a sensor including the above-described optical element. The optical element includes a cholesteric liquid crystal layer, in which the cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and in a case where a length over which the direction of the optical axis rotates by 180° in the in-plane direction in which the direction of the optical axis changes while continuously rotating is set as a single period, the cholesteric liquid crystal layer has in-plane regions having different lengths of the single periods in the liquid crystal alignment pattern.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: August 17, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Hiroshi Sato
  • Patent number: 11085830
    Abstract: Bolometers and methods of forming the same are provided. A bolometer that includes a substrate, a support structure comprising at least one SiGe layer and at least one Si layer, an absorber comprising reduced graphene oxide, and a thermistor comprising partially reduced graphene oxide are described. Also described are methods for forming bolometers and the parts contained therein.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: August 10, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Edward Aifer, Erin Cleveland, Glenn Jernigan, Jill Nolde
  • Patent number: 11085828
    Abstract: The invention concerns a detection device for detecting electromagnetic radiation, comprising a substrate, an array of thermal detectors, each thermal detector comprising a suspended absorbent membrane and a reflective layer. The detection device comprises at least one opaque vertical wall, arranged on the substrate and extending longitudinally between two adjacent thermal detectors, and produced from a material that is opaque to the electromagnetic radiation to be detected.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: August 10, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Sebastien Becker
  • Patent number: 11067716
    Abstract: A downhole logging tool includes a radiation generation source operable to emit radiation into a formation surrounding the tool and a radiation detector operable to detect backscattered radiation from the formation surrounding the tool. The tool also includes a sleeve positioned around the radiation generation source, the sleeve including at least one aperture for forming a pathway for a radiation beam, emitted from the radiation generation source, to enter the formation, the sleeve being rotatable about an axis of the tool to change a position of the aperture to distinctly inspect different regions of the formation.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: July 20, 2021
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Feyzi Inanc, Peng Yuan, Marc Ramirez, Allan Jones
  • Patent number: 11070740
    Abstract: A camera device includes a first IR illuminator that is configured to irradiate a first irradiation range in a capturing area with first IR light, a second IR illuminator that is configured to irradiate a second irradiation range narrower than the first irradiation range in the capturing area with second IR light, and a controller that is configured to obtain a zoom magnification of the lens and controls the irradiation of the first IR light and the second IR light in a case where the zoom magnification is equal to a predetermined zoom magnification. The controller changes a supplied current of the first IR illuminator for the irradiation of the first IR light over a first predetermined time period, and changes a supplied current of the second IR illuminator for the irradiation of the second IR light over a second predetermined time period.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: July 20, 2021
    Assignee: PANASONIC I-PRO SENSING SOLUTIONS CO., LTD.
    Inventors: Tatsuya Tamaru, Satoshi Kataoka, Daisuke Hara, Hiroki Yamanaka
  • Patent number: 11058325
    Abstract: A patient support apparatus includes a plurality of primary sensors adapted to measure different parameters used in the control of the patient support apparatus. One or more suites of secondary sensors are added to the patient support apparatus to provide data about the primary sensors. The secondary sensors may be used to detect errors in the primary sensors, to modify outputs from the primary sensors, and/or to provide usage and/or diagnostic data about the use of the patient support apparatus. The suite(s) of secondary sensors may measure parameters that affect the outputs of one or more of the primary sensors. In some embodiments, the suite(s) of secondary sensors include one or more dormant sensors that are not used on the patient support apparatus until a code modification is received from one or more external sources instructing the control system of the patient support apparatus to begin using the dormant sensor(s).
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 13, 2021
    Assignee: Stryker Corporation
    Inventors: Marko N. Kostic, Sujay Sukumaran, Jonathan Mark Greenbank
  • Patent number: 11060921
    Abstract: An optical module includes a base, a first optical component and at least two washers. The first optical component is disposed on the base and the first optical component has a flange. The washers are disposed on the first optical component and sandwiched in between the base and the flange. Each of the washers has a first side surface and a second side surface, wherein the first side surface and the second side surface tilt with respect to each other by an angle.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: July 13, 2021
    Assignee: QISDA CORPORATION
    Inventor: Chih-Ying Lin
  • Patent number: 11060920
    Abstract: An optically transparent electromagnetic shield assembly comprising an electrical connection device with variable electrical resistance. The electrical connection device electrically connects a conductive two-dimensional structure, which covers a transparent substrate, to a shell portion which is electrically conductive. The resistance of the connection device can be adjusted, either initially for a detection system for which the shield assembly is intended or in real time while the shield assembly is in use, according to an RF radiation intensity.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: July 13, 2021
    Assignees: SAFRAN ELECTRONICS & DEFENSE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS, UNIVERSITE DE RENNES 1
    Inventors: Cyril Dupeyrat, Patrice Foutrel, Philippe Besnier, Xavier Castel, Yonathan Corredores
  • Patent number: 11054561
    Abstract: An object is to provide an optical element that is thin and can gather and reflect light in a specific wavelength range in a predetermined direction, and a sensor including the above-described optical element. The optical element includes a cholesteric liquid crystal layer, in which the cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and in a case where a length over which the direction of the optical axis rotates by 180° in the in-plane direction in which the direction of the optical axis changes while continuously rotating is set as a single period, the cholesteric liquid crystal layer has in-plane regions having different lengths of the single periods in the liquid crystal alignment pattern.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: July 6, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Hiroshi Sato
  • Patent number: 11047738
    Abstract: A thermal detector including a substrate, an absorbent membrane including a fixed part and a deformable part, the latter including a shape-memory alloy, and being arranged with respect to the substrate in such a way that its free end is in contact with the substrate at the contact temperature Tc above the austenite start temperature As.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: June 29, 2021
    Assignee: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Abdelkader Aliane, Jean-Louis Ouvrier-Buffet
  • Patent number: 11015979
    Abstract: A bolometer circuit may include an active bolometer configured to receive external infrared (IR) radiation. The bolometer circuit may be configured to reduce power consumption at high temperatures. In particular, the bolometer circuit may include additional resistors provided in the resistive loads for bolometer conduction paths to limit power at high temperatures. In some embodiments, the bias (e.g., a voltage level) to the gates of transistors in the resistive loads for the bolometer conduction paths may be adjusted based on temperature to limit power and/or current at high temperatures. In bolometer circuits with a feedback resistor provided across an amplifier to configure a feedback amplifier, a circuit with adjustable amplifier power may be provided to save power. In some embodiments, a bolometer circuits may be provided with reduced gains to allow for very hot scenes to be imaged without railing the output.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: May 25, 2021
    Assignee: FLIR Systems, Inc.
    Inventors: Naseem Y. Aziz, Brian B. Simolon
  • Patent number: 11011354
    Abstract: Systems and methods that facilitate non-pertubative measurements of low and null magnetic field in high temperature plasmas.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 18, 2021
    Inventors: Deepak K. Gupta, Richard Ignace, Kenneth H. Nordsieck
  • Patent number: 10996107
    Abstract: The present disclosure relates to an exponential model based uncooled infrared focal plane array readout circuit, including: a first microbolometer unit and a second microbolometer unit, for obtaining a detection signal and a reference signal; a conversion unit, connected with the first and second microbolometer units, and configured for converting the detection signal and reference signal to obtain a linear detection signal and linear reference signal; a subtraction unit, connected with the conversion unit, and configured for calculating a difference between the detection signal and the reference ratio signal to obtain a difference signal; and an integration unit, connected to the subtraction unit, and configured for integrating the difference signal to obtain an electrical signal for characterizing the infrared light signal of the to-be-detected object.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: May 4, 2021
    Assignee: University of Electronic Science and Technology of China
    Inventors: Longcheng Que, Daogang Min, Kai Yang, Yi Zhang, Jian Lv, Yun Zhou, Yadong Jiang
  • Patent number: 10989602
    Abstract: A recessed carbon nanotube article includes a base; a substrate disposed on the base; wells disposed in the substrate and bounded by the base and a substrate wall; and a carbon nanotube element disposed in individual wells and including vertically aligned carbon nanotubes such that a longitudinal length of the vertically aligned carbon nanotubes is less than a depth of the well in which the carbon nanotube element is disposed. A recessed carbon nanotube bolometer includes a base; a substrate on the base; radiation wells in the substrate; carbon nanotubes in the wells; thermistors and heaters on the membrane arranged as an electrical substitution member. A process for making a recessed carbon nanotube bolometer includes forming a substrate on a base; forming a radiation well in the substrate; forming carbon nanotubes in the well; disposing a cover on the wells; and forming a thermistor and a heater on the base.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 27, 2021
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Christopher S. Yung, Nathan A. Tomlin, Daniel R. Schmidt
  • Patent number: 10983047
    Abstract: Imaging devices including dielectric metamaterial absorbers and related methods are disclosed. According to an aspect, an imaging device includes a support. The imaging device also includes multiple dielectric metamaterial absorbers attached to the support. Each absorber includes one or more dielectric resonators configured to generate and emit thermal heat upon receipt of electromagnetic energy.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 20, 2021
    Assignee: Duke University
    Inventors: Willie Padilla, Kebin Fan, Xinyu Liu, Jonathan Suen
  • Patent number: 10981365
    Abstract: A component comprises a first part and a second part, wherein said second part is in contact with said first part, wherein: (i) said first part comprises a polymer having a repeat unit of formula —O-Ph-O-Ph-CO-Ph-??I and a repeat unit of formula —O-Ph-Ph-O-Ph-CO-Ph??II wherein Ph represents a phenylene moiety; and (ii) said second part comprises a metal.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: April 20, 2021
    Assignee: VICTREX MANUFACTURING LIMITED
    Inventors: Christopher Crawley, Paul Corscadden, Laurie Crouch, Jason Paul Bell
  • Patent number: 10970556
    Abstract: Various techniques are disclosed for smart surveillance camera systems and methods using thermal imaging to intelligently control illumination and monitoring of a surveillance scene. For example, a smart camera system may include a thermal imager, an IR illuminator, a visible light illuminator, a visible/near IR (NIR) light camera, and a processor. The camera system may capture thermal images of the scene using the thermal imager, and analyze the thermal images to detect a presence and an attribute of an object in the scene. In response to the detection, various light sources may be selectively operated to illuminate the object only when needed or desired, with a suitable type of light source, with a suitable beam angle and width, or in otherwise desirable manner. The visible/NIR light camera may also be selectively operated based on the detection to capture or record surveillance images containing objects of interest.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: April 6, 2021
    Assignee: FLIR SYSTEMS, INC.
    Inventors: Andrew C. Teich, Nicholas Högasten, Theodore R. Hoelter, Katrin Strandemar