By Dispersed Light Spectroscopy Patents (Class 356/300)
  • Patent number: 11457204
    Abstract: The present disclosure relates to contaminant detection systems and related optical systems and methods. An example contaminant detection system includes an optical coupler configured to couple light into and/or out of an optical element. The contaminant detection system also includes a plurality of light-emitter devices configured to emit emission light toward the optical coupler. The contaminant detection system additionally includes a plurality of detector devices configured to detect at least a portion of the emission light by way of the optical element and the optical coupler. The plurality of detector devices is also configured to provide detector signals indicative of a presence of a contaminant on the optical element.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: September 27, 2022
    Assignee: Waymo LLC
    Inventors: Benjamin Frevert, Shashank Sharma
  • Patent number: 11441950
    Abstract: Various embodiments are provided herein for an optical spectroscopy probe which generally includes a probe head having optical elements for coupling to an excitation fiber for receiving laser energy therefrom and generating a collimated excitation light beam; and a sample optic adjacent to the probe head, the sample optic having at least one optical element with two non-parallel surfaces to receive the collimated excitation light beam, to transmit the collimated excitation light beam to a sample, and to collect at least one afocal returning scattered light beam that is reflected from the sample.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: September 13, 2022
    Assignee: Tornado Spectral Systems Inc.
    Inventor: Bradford B. Behr
  • Patent number: 11422026
    Abstract: To easily and accurately perform calibration with respect to environment light. In one example, an information processing device includes a memory configured to store detected values of illuminances of environment light; and a color temperature estimation unit configured to estimate a color temperature of the environment light, on a basis of detected values of illuminances of the environment light within a plurality of wavelength bands. The disclosed technology can, for example, be applied to a system that performs remote sensing on an agricultural land, and calculates an evaluation index such as a normalized difference vegetation index (NDVI).
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: August 23, 2022
    Assignee: Sony Group Corporation
    Inventor: Masatoshi Takashima
  • Patent number: 11353440
    Abstract: A measurement system is provided with an array of laser diodes to generate light having one or more optical wavelengths. A detection system is provided with at least one photo-detector, a lens and a spectral filter at an input to the at least one photo-detector. The measurement system is further configured to transmit at least a portion of the output signal, indicative of an output status, to a cloud service over a transmission link. The cloud service is configured to receive the output status, to generate processed data based on the received output status, and to store the processed data, and wherein the cloud service is capable of storing a history of at least a portion of the received output status over a specified period of time.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: June 7, 2022
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 11331017
    Abstract: A device may identify a peak timestamp and a trough timestamp based on a first principal component of photoplethysmography (PPG) data associated with a plurality of wavelength channels. The device may generate a peak absorption spectrum based on the peak timestamp and the PPG data, and may generate a trough absorption spectrum based on the trough timestamp and the PPG data. The device may determine a measured arterial blood spectrum based on the peak absorption spectrum and the trough absorption spectrum. The device may fit the arterial blood spectrum model to the measured arterial blood spectrum to determine a set of values, each value in the set of values corresponding to a variable in a set of variables. The device may calculate an arterial oxygen saturation value based on one or more values of the set of values.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: May 17, 2022
    Assignee: VIAVI Solutions Inc.
    Inventors: Lan Sun, Chang Meng Hsiung, Babs Soller
  • Patent number: 11320377
    Abstract: A detection device includes a light emitting element, an accommodation frame, a light detector, and a movable light splitter. The light emitting element provides an excitation beam. The accommodation frame accommodates an object under test, and a portion of the excitation beam whose dominant light emitting wavelength falls within a first waveband range forms a fluorescent beam after passing through the object under test. The light detector receives a portion of the fluorescent beam whose dominant light emitting wavelength falls within a second waveband range. The movable light splitter forms a plurality of sub-beams from an incident beam. The sub-beams have respectively different dominant light emitting wavelengths and exits at different emitting angles. The incident beam is at least one of the excitation beam and the fluorescent beam.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: May 3, 2022
    Assignee: Wistron Corporation
    Inventors: Yu-Lin Chen, Yi Fan Hsieh
  • Patent number: 11255780
    Abstract: A planar waveguide device (PWD) for interacting with a fluid (FLD) is disclosed, the planar waveguide device (PWD) comprising a waveguide layer (WGL) for supporting optical confinement, a coupling arrangement (CPA) for in-coupling and out-coupling of light into and from the waveguide layer (WGL), a fluid zone (FZN) for accommodating the fluid (FLD), a filter layer (FTL) arranged between the fluid zone (FZN) and the waveguide layer (WGL) in an interaction region (IAR) of the waveguide layer (WGL), wherein the filter layer (FTL) comprises filter openings (FOP) arranged to allow the fluid (FLD) to interact with an evanescent field of light guided by the waveguide layer (WGL), wherein the filter openings (FOP) are adapted to prevent particles (PAR) larger than a predefined size from interacting with said evanescent field, wherein the filter openings (FOP) are arranged as line openings having their longitudinal direction in parallel with the direction of propagation (DOP) of light guided by the waveguide lay
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 22, 2022
    Assignee: RADIOMETER MEDICAL APS
    Inventors: Anders Kristensen, Chen Zhou, Mehdi Keshavarz Hedayati, Uriel Levy
  • Patent number: 11241156
    Abstract: A measurement system is provided with an array of laser diodes with one or more Bragg reflectors. At least a portion of the light generated by the array is configured to penetrate tissue comprising skin. A detection system configured to: measure a phase shift, and a time-of-flight, of at least a portion of the light from the array of laser diodes reflected from the tissue relative to the portion of the light generated by the array; generate one or more images of the tissue; detect oxy- or deoxy-hemoglobin in the tissue; non-invasively measure blood in blood vessels within or below a dermis layer within the skin; measure one or more physiological parameters based at least in part on the non-invasively measured blood; and measure a variation in the blood or physiological parameter over a period of time.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: February 8, 2022
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 11234648
    Abstract: An infrared light source radiates infrared light. An ATR prism receives, on a first end face, the infrared light radiated from the infrared light source, causes the received infrared light to pass therethrough while repeating total reflection off a second end face and a third end face, and emits the infrared light that has passed therethrough from the third end face. An infrared photodetector detects the intensity of the infrared light emitted from the ATR prism. Strain sensors, which are contact sensors of one type, are attached to the ATR prism and configured to detect a contact state between the ATR prism and a measurement skin.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 1, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shimpei Ogawa, Daisuke Fujisawa, Koichi Akiyama, Kentaro Enoki, Kosuke Shinohara
  • Patent number: 11197614
    Abstract: An infrared light source radiates, to an ATR prism, infrared light in entirety or part of a wavelength range with absorption wavelengths of a biological material. The ATR prism is adherable to a measurement skin. A prism vibration controller is mounted on the ATR prism and vibrates the ATR prism perpendicular to a contact surface between the ATR prism and the measurement skin. A controller causes an infrared photodetector to detect infrared light in synchronization with the vibration of the ATR prism.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: December 14, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kentaro Enoki, Kosuke Shinohara, Koichi Akiyama, Shimpei Ogawa, Daisuke Fujisawa
  • Patent number: 11197632
    Abstract: An apparatus for estimating a skin condition includes a data acquirer configured to acquire an optical absorption spectrum of a skin; and a processor configured to determine content of a component in the skin from the optical absorption spectrum and determine a skin condition based on the determined content of the component in the skin.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eui Seok Shin, June Young Lee, Seung Jun Lee
  • Patent number: 11187692
    Abstract: An apparatus or method determines a content of the one or more elements of a solid matrix by scanning the solid matrix using a PXRF spectrometer and a color sensor, receiving a PXRF spectra from the PXRF spectrometer and a numerical color data from the color sensor, extracting a value for each of the one or more elements the PXRF spectra, determining the content of the one or more elements of the solid matrix using one or more processors and a predictive model that relates the value of each of the one or more elements and the numerical color data to the content of the one or more elements of the solid matrix, and providing the content of the one or more elements of the solid matrix to one or more input/output interfaces.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: November 30, 2021
    Assignee: Texas Tech University System
    Inventors: David Weindorf, Delaina Pearson, Somsubhra Chakraborty
  • Patent number: 11181422
    Abstract: A method of calibrating a spectrophotometer comprising a flash lamp. The method comprises receiving light from the flash lamp at a monochromator of the spectrometer, wherein the flash lamp is a short arc noble gas flash lamp with transverse or axially aligned electrodes; configuring the monochromator to progressively transmit the received light at each of a plurality wavelengths of a selected range of wavelengths, wherein the range of wavelengths is associated with a wavelength feature according to a known spectral profile of the flash lamp, and wherein the wavelength feature is a self-absorption feature; and determining a spectrum of the flash lamp, wherein the spectrum comprises a corresponding power or intensity value for each of the plurality of wavelengths.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: November 23, 2021
    Assignee: Agilent Technologies, Inc.
    Inventors: David Death, Philip Valmont Wilson
  • Patent number: 11160455
    Abstract: A system for measuring one or more physiological parameters is provided with a wearable device that includes a light source comprising a driver and a plurality of semiconductor sources that generate an output optical light. The wearable device comprises: one or more lenses to receive at least a portion of the output optical light and to deliver a lens output light to tissue, and a detection system to receive at least a portion of the lens output light reflected from the tissue and to generate an output signal having a signal-to-noise ratio, and to be synchronized to the light source. The detection system comprises at least one analog to digital converter coupled to at least one spatially separated detector. The plurality of semiconductor sources comprises six light emitting diodes, and wherein the plurality of semiconductor sources and the plurality of spatially separated detectors are located on one or more arcs.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: November 2, 2021
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 11126015
    Abstract: A method for determining a parameter of an optical equipment including an optical equipment positioning step, during which an optical equipment comprising a pair of optical lenses mounted on a spectacle frame is positioned in a first position, a portable electronic device positioning step, during which a portable electronic device comprising an image acquisition module is positioned in a second position determined and/or known relatively to the first position so as to acquire an image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position, a parameter determining step, during which at least one optical parameter of the optical equipment is determined based on the image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: September 21, 2021
    Assignee: Essilor International
    Inventors: Stephane Gueu, Jean Carrier
  • Patent number: 11118069
    Abstract: We describe a new approach to fabricate polymeric materials with surface structures for applications as anti-reflective, anti-icing, superhydrophobic, superhydrophilic, de-wetting, and self-cleaning coatings. In some variations, a surface-textured layer comprises first microdomains and second microdomains each containing polymerized cross-linkable photomonomer, where the first microdomains have a higher average cross-link density than that of the second microdomains. The first microdomains and the second microdomains are in a peak-valley surface topology, providing surface texture with no filler particles.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 14, 2021
    Assignee: HRL Laboratories, LLC
    Inventors: Michael H. Risbud Bartl, Alan J. Jacobsen
  • Patent number: 11112301
    Abstract: The present invention relates to a method for correcting a packaged optical sensor array module, and the method for correcting a packaged optical sensor array module according to the present invention comprises the steps of: analyzing statistical characteristics of an optical sensor array with respect to light emitted from a standard light source having a predetermined characteristic value to extract a representative value, and calculating a first correction value for a measurement value according to the extracted representative value; and calculating a second correction value for a measured value of the optical sensor array that is corrected by the first correction value with respect to light emitted from an applied light source or light emitted by a fluorescence of the applied light source.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: September 7, 2021
    Assignee: SOL INC.
    Inventors: Jong Muk Lee, Tae Young Lee, Jae In Kim
  • Patent number: 11112355
    Abstract: Acoustically mediated spintronic THz emitters in which sound waves, rather than direct laser pulses, give rise to a spin current in a magnetic material via magnetoelastic coupling are provided. The THz emitters include a metal layer that acts as a light-to-acoustic transducer. Also provided are THz time-domain spectrometers (THz-TDSs) that incorporate the THz emitters.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 7, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Jiamian Hu, Shihao Zhuang
  • Patent number: 11105736
    Abstract: The instant disclosure provides spectrophotometric methods for assessing histological stains used in a histology analyzer. The methods find use in various assessments including determinations of the identity of a histological stain, determinations of the quality of a histological stain, etc. Also included are devices and systems for practicing the described methods. The instant disclosure also provides computer readable media containing libraries of reference spectrophotometric characteristics of histological stains useful in assessing a histological stain used in a histology analyzer. Also provided is computer readable media containing instructions that cause a computing device to perform steps for making an assessment of a histological stain.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 31, 2021
    Assignee: Abbott Laboratories
    Inventors: Svitlana Y. Berezhna, Rene Nieves Alicea, Ema C. Olah
  • Patent number: 11079324
    Abstract: A method for implementation by a laser spectrometer is provided. The method includes first scanning, by a control unit using a first set of laser spectrometer operating parameters, a first wavelength range by adjusting a wavelength of light of a beam emitted by a laser light source and passing through a sample gas. The first wavelength range encompasses a first spectral feature corresponding to a first constituent. The method also includes at least one second scanning, by the control unit using a second set of laser spectrometer operating parameters, a second wavelength range by adjusting the wavelength of light emitted from the laser light source and passing through the sample gas. The second wavelength range has a second spectral feature corresponding to at least one second constituent. The control unit also determines a first concentration of the first constituent and a second concentration of the at least one second constituent.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: August 3, 2021
    Assignee: SpectraSensors, Inc.
    Inventors: Xiang Liu, Alfred Feitisch, Gary Yeh, Chih-Hsuan Chang
  • Patent number: 11079275
    Abstract: This far-infrared spectroscopy device is provided with: a variable wavelength far-infrared light source that generates first far-infrared light; an illuminating optical system that irradiates a sample with the first far-infrared light; a detecting nonlinear optical crystal that converts second far-infrared light into near-infrared light using pump light, said second far-infrared light having been transmitted from the sample; and a far-infrared image-forming optical system that forms an image of the sample in the detecting nonlinear optical crystal. The irradiation position of the first far-infrared light on the sample does not depend on the wavelength of the first far-infrared light.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: August 3, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Kei Shimura, Mizuki Oku, Kenji Aiko
  • Patent number: 11060909
    Abstract: (Object) To enable to provide a small-scale and low-cost spectrometer (Means of Achieving the Object) A spectrometer includes: a light incidence unit configured to allow incidence of light from outside; a diffraction grating configured to disperse, according to wavelength, the light that is incident through the light incidence unit; and a reflection unit including a reflection surface for reflecting the light that has been dispersed according to wavelength by the diffraction grating. Tilt of the reflection surface is changeable.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: July 13, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidetaka Noguchi, Junichi Azumi, Hidenori Kato, Masashi Suematsu, Masayuki Fujishima, Shuichi Suzuki
  • Patent number: 11054240
    Abstract: A light interference unit includes a branching optical element, a multiplexing optical element, and at least one fiber device. The branching optical element branches a laser light with an emission wavelength temporally swept, into a measurement light and a reference light. The multiplexing optical element multiplexes the reference light and the measurement light reflected by a measured object, and causes them to interfere. The fiber device includes a reference light device. A transmission light path length is a light path length of the reference light transmitting the reference light device, from the reference light device to the multiplexing optical element. A reflection light path length is a light path length of the reference light reflected by a separation portion of the reference light device, from the reference light device to the multiplexing optical element. The transmission light path length is equal to or more than the reflection light path length.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: July 6, 2021
    Assignees: TATSUTA ELECTRIC WIRE & CABLE CO., LTD., NIDEK CO., LTD.
    Inventors: Masato Takaya, Shinya Iwata
  • Patent number: 11047906
    Abstract: Method to extract timing diagrams from synchronized single- or two-photon pulsed LADA by spatially positioning the incident laser beam on circuit feature of interest, temporally scanning the arrival time of the laser pulse with respect to the tester clock or the loop length trigger signal, then recording the magnitude and sign of the resulting fail rate signature per laser pulse arrival time. A Single-Photon Laser-Assisted Device Alteration apparatus applies picosecond laser pulses of wavelength having photon energy equal to or greater than the silicon band-gap. A Two-Photon Laser-Assisted Device Alteration apparatus applies femtosecond laser pulses of wavelength having photon energy equal to or greater than half the silicon band-gap at the area of interest. The laser pulses are synchronized with test vectors so that pass/fail ratios can be altered using either the single-photon or the two-photon absorption effect. A sequence of synthetic images with error data illustrates timing sensitive locations.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: June 29, 2021
    Assignees: DCG Systems, Inc., NXP USA, Inc.
    Inventors: Kent Erington, Daniel J. Bodoh, Keith Serrels, Theodore Lundquist
  • Patent number: 11043433
    Abstract: Provided are a method of inspecting a surface and a method of manufacturing a semiconductor device. The methods include preparing a substrate, selecting a spatial resolution of a first optical device by setting a magnification of an imaging optical system, emitting multi-wavelength light toward a first measurement area of the substrate and obtaining first wavelength-specific images, generating first spectrum data based on the first wavelength-specific images, generating first spectrum data of respective pixels based on the first wavelength-specific images, and extracting a spectrum of at least one first inspection area having a range of the first measurement area or less from the first spectrum data, and analyzing the spectrum. The first optical device includes a light source, an objective lens, a detector, and an imaging optical system. The obtaining first wavelength-specific images includes using the imaging optical system and the detector.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: June 22, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-yoon Ryu, Chung-sam Jun, Yu-sin Yang, Yun-jung Jee, Gil-woo Song
  • Patent number: 11025834
    Abstract: A method removes brightening, which is caused by scattered light, from an image of an external environment of a vehicle captured by a vehicle camera arranged in or on the vehicle. A curve of a total intensity e.g. along a respective line within the image is determined, wherein the total intensity is caused by desired light and scattered light that reach the coverage area of the vehicle camera. An approximation function of a lower limit of the scattered light intensity is estimated. The estimated approximation function is subtracted from the determined curve of the total intensity to produce a modified image with reduced or corrected scattered light.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: June 1, 2021
    Assignee: Conti Temic microelectronic GmbH
    Inventor: Lars Ulveland
  • Patent number: 11009459
    Abstract: An apparatus and methods for high-speed non-linear spectrally encoded multi-photon imaging that are particularly suited for use in two photon fluorescence and fluorescence lifetime imaging. The system is capable of optical image compression and scale invariant digital zoom. A wavelength agile laser with digitally synthesized electro-optic modulation in a master oscillator-power amplifier configuration is combined with spectral encoding to eliminate the speed limitations of inertial scanning. The technique for fast two photon fluorescent imaging with simultaneous lifetime imaging independently detects the location, amplitude and lifetime of fluorescent emission by synthesizing a sequential excitation beam via digital electro-optic modulation of a quasi-CW swept source followed by time encoded detection. For fluorescent imaging, spectral and temporal mappings are employed separately, with quasi-CW spectral encoding used for pumping and time encoding for constructing the image at fluorescence wavelength.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 18, 2021
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, UNIVERSITAET ZU LUEBECK
    Inventors: Sebastian Karpf, Bahram Jalali, Robert Huber
  • Patent number: 10976242
    Abstract: A processing system monitors and/or controls a surface modification process occurring on a substrate within a processing chamber. An optical processing module having a light emission submodule to output a generated light signal and an optical detection submodule to detect a resultant light signal, is connected via fiber optic cables to light illuminating and light receiving components located within the chamber. A processor determines an amount of atomic absorption by an atomic element encountered by a probing beam passing between the illuminating and receiving components, based on the intensity of the generated light signal, the intensity of the received light signal and optionally the spontaneous emission of the atomic element in the absence of illumination by a probing beam. Based on the determined amount, the system derives a plurality of parameters of the modified substrate, their spatial and temporal uniformity, and information about process conditions in the processing chamber.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 13, 2021
    Assignee: Accustrata, Inc.
    Inventors: George Atanasoff, Christopher Metting, Hasso Von Bredow
  • Patent number: 10959617
    Abstract: A sensing device allows detection of biological quantities in ways that are minimally invasive. Micrometer or nanometer sized needles allow sensing of bodily fluids in a minimally invasive method. The device comprises electronics and power harvesting. Antennas or coils allow communication and power harvesting from an external device, which can be attached to smartphones to allow operation of a camera and camera light for biosensing.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 30, 2021
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Axel Scherer, Muhammad Mujeeb-U-Rahman, Meisam Honavar Nazari, Muhammad Musab Jilani
  • Patent number: 10952615
    Abstract: A system for optical coherence tomography includes a source of optical radiation, an optical fiber, and a graded index fiber attached to a distal end of the optical fiber. The optical fiber and the graded index fiber are together configured to provide a common path for optical radiation reflected from a reference interface at a distal end of the graded index fiber and from a target.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: March 23, 2021
    Assignee: Avinger, Inc.
    Inventor: Manish Kankaria
  • Patent number: 10928374
    Abstract: A measurement system comprises a pulsed, near-infrared array of laser diodes, the laser diode array comprising Bragg reflectors, and wherein laser diode light is configured to penetrate tissue comprising skin. A detection system comprising a camera is synchronized to the laser diodes, and the camera is configured to receive some of the laser diode light reflected from the tissue. The detection system is configured to non-invasively measure blood within the skin, the detection system is configured to measure absorption of hemoglobin in the wavelength range between 700 and 1300 nanometers, and the processor is configured to compare the absorption of hemoglobin between different spatial locations of tissue and over a period of time. Physiological parameters are measured by the system. The measurement system is configured to use artificial intelligence in making decisions, and the system is further configured to use regression signal processing, multivariate data analysis, or component analysis techniques.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: February 23, 2021
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10918287
    Abstract: A measurement system comprises a pulsed laser diode array that includes one or more Bragg reflectors, and wherein the light generated by the array penetrates tissue comprising skin. At least some of the wavelengths of light are in the near infrared. The detection system is synchronized to the laser diode array and comprises an infrared camera and a first receiver comprising a plurality of detectors. The first receiver comprises one or more detector arrays and performs a time-of-flight measurement. The measurement system generates an image, the detection system non-invasively measures blood in blood vessels within or below a dermis layer within the skin based at least in part on near-infrared diffuse reflection from the skin, and the detection system measures absorption of hemoglobin between 700 and 1300 nanometers wavelength range. A processor compares the absorption of hemoglobin between different tissue spatial locations, and the measurement system processes the time-of-flight measurement.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: February 16, 2021
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10908208
    Abstract: Testing apparatus operable to collect optical performance data of optoelectronic devices at different temperatures includes thermal-adjustment devices in thermal and mechanical contact with the optoelectronic devices via optoelectronic device stages. The thermal-adjustment devices can direct thermal energy to the optoelectronic devices under test without heating test targets in close proximity. Consequently, in some instances, spurious results can be avoided and rapid measurement of the optoelectronic devices different temperatures can be achieved.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: February 2, 2021
    Assignee: ams Sensors Singapore. Pte. Ltd.
    Inventors: Jens Geiger, Yeoh Ging Sheng, Kevin Hauser
  • Patent number: 10874304
    Abstract: A measurement system is provided with a light source that is configured to increase signal-to-noise ratio by increasing a light intensity from at least one of a plurality of semiconductor sources. An apparatus to receive a portion of the output optical beam, and deliver an analysis output beam to a sample. A receiver to: receive and process at least a portion of the analysis output beam reflected or transmitted from the sample, generate an output signal, and synchronize to the light source. A smart phone or tablet to: receive and process at least a portion of the output signal, store and display the processed output signal, and transmit at least a portion of the processed output signal. A cloud to: receive an output status comprising the at least a portion of the processed output signal, process the received output status to generate processed data, and store the processed data.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: December 29, 2020
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10831000
    Abstract: An optical lens assembly for generating light beams from near infrared light beams emitted by a structured light generating unit having light sources and passed through the optical lens assembly is provided. The optical lens assembly includes a first lens element, a second lens element and a third lens element arranged along an optical axis in a sequence from a light output side to a light input side. The optical lens assembly satisfies: SL/AAG?6.500, wherein SL is a distance from an optical surface of one of an optical elements closest to the light output side of the optical lens assembly to the structured light generating unit having the plurality of light sources along the optical axis, and AAG is a sum of the air gaps among all lenses having refracting power of the optical lens assembly along the optical axis.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: November 10, 2020
    Assignee: GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD.
    Inventors: Jinhui Gong, Qingzhi Zhu, Jiali Lian
  • Patent number: 10822689
    Abstract: A nanoporous metal can be formed by projecting laser patterns using a spatial light modulator (SLM) onto a gold/silver alloy film immersed in diluted nitric acid solutions. Heat accumulation induced by the photothermal effect enables localized dealloying in dilute nitric acid. NPG micropatterns can be formed at the irradiated spots while the surrounding alloy remains intact.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: November 3, 2020
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Wei-Chuan Shih, Fusheng Zhao, Jingting Li
  • Patent number: 10820807
    Abstract: A blood measurement system comprises an array of laser diodes, to generate light to penetrate tissue comprising skin, having one or more wavelengths, including a near-infrared wavelength, and Bragg reflector(s). At least one of the laser diodes to pulse at a pulse repetition rate between 1-100 megahertz. A detection system to measure blood in veins based at least in part on near-infrared diffuse reflection from the skin, the detection system comprising a photo-detector and a lens system coupled to the photo-detector, wherein the photo-detector is coupled to analog-to-digital converter(s) and a processor, and configured to measure absorption of hemoglobin in the near-infrared wavelength between 700-1300 nanometers, differentiate between regions in the skin with and without distinct veins, and implement pattern matching and a threshold function to correlate detected blood concentrations with a library of known concentrations to determine overlap.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 3, 2020
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10823684
    Abstract: An X-ray detector according to a present embodiment includes: an optical sensor array configured to generate an electric signal by receiving X-rays; a substrate including at least an element that performs A/D conversion on the electric signal; a first support plate configured to hold a separator for removing scattered radiation; and a second support plate that is formed of a material being higher in thermal conductivity than the first support plate and is provided in contact with the substrate at least in part.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: November 3, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Minoru Horinouchi, Akira Nishijima
  • Patent number: 10799177
    Abstract: A system for non-invasively measuring a physiologic status patient tissue according to an embodiment includes a housing; an optical spectroscope with a wavelength-sensitive sensor capable of detecting light intensity, at two or more distinct wavelengths, of light scattered and/or reflected by muscle tissue of the patient in order to measure a physiologic status of the muscle tissue, a bioimpedance sensor at least partially disposed within the housing, the bioimpedance sensor configured to generate a signal corresponding to an estimation of a thickness of an adipose tissue layer between the optical spectroscope and the muscle tissue, and a processor configured to (1) receive the estimations of the thickness, (2) compare the estimations of the thickness, and (3) based on the comparison, generate a visual indication configured to assist in placement of the housing toward or at a location corresponding to the smaller or smallest thickness of the adipose tissue layer.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 13, 2020
    Assignee: ZOLL Medical Corporation
    Inventors: Gary A. Freeman, Ulrich Herken, Christopher L. Kaufman, Annemarie Elizabeth Silver
  • Patent number: 10802230
    Abstract: A system for the collection and isolation of photons from multiple photon sources is provided that images individual photon sources onto individual optical fibers. The collected photons can then be directed to one or more photon detectors. The present invention is particularly applicable to a qubit state detection system for the detection of individual qubit states.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: October 13, 2020
    Assignee: Duke University
    Inventors: Jungsang Kim, Stephen Crain
  • Patent number: 10789494
    Abstract: The image processing system acquires a first image by causing a first photographing device to photograph a vehicle illuminated by a first light source and a second light source, wherein the second source illuminates the vehicle from a direction different from that of the first light source. The system acquires a second image by causing a second photographing device to photograph a photographing range same as that of the first photographing device through a first filter. The system acquires a third image by causing a third photographing device to photograph a photographing range same as that of the first photographing device through a second filter type of which is different from that of the first filter. The system generates a fourth image by processing on the first image, the second image and the third image.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 29, 2020
    Assignee: NEC CORPORATION
    Inventor: Shinichi Miyamoto
  • Patent number: 10786314
    Abstract: A hyperspectral imaging apparatus and methods for performing hyperspectral imaging of a surgical field, involving: an external optical imaging device for externally imaging internal tissue through a surgical access port, the access port having a port wall having a light-diffusing surface texture, whereby reflectance of the port wall is decreasable, and the external optical imaging device having an illuminated exoscope, the illuminated exoscope having: a longitudinal housing; an optical imaging assembly provided within the longitudinal housing; an imaging camera interfaced with the optical imaging assembly for detecting images collected by the optical imaging assembly; and one or more illumination sources supported by the longitudinal housing, wherein an illumination axis associated with each illumination source is offset from an imaging axis of the optical imaging assembly; a remote light source; a spectral filtering device in optical communication with the remote light source; and a light guide having a prox
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 29, 2020
    Assignee: Synaptic Medical (Barbados) Inc.
    Inventors: Michael Wood, Cameron Piron, Murugathas Yuwaraj, Gal Sela, Joshua Richmond, Stephen McFadyen
  • Patent number: 10782248
    Abstract: Embodiments of the present disclosure relate to a measuring method and device for measuring surface defects of a cambered optical element, which belongs to the field of photoelectric detection technology. The device includes a sensor measuring head, a rotatable workpiece table, an automatic sampling device, and a spraying device. The sensor measuring head includes an illumination sub-system and a line scan imaging sub-system, the illumination sub-system provides an illumination of high uniformity and high brightness for a surface of a sample to be detected, the rotatable workpiece table and the imaging sub-system are configured for performing a ring belt scanning and a high resolution scatter imaging to the defects on an optical surface region.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: September 22, 2020
    Assignee: The Institute of Optics and Electronics, The Chinese Academy of Sciences
    Inventors: Haiyang Quan, Fuchao Xu, Taotao Fu, Xiaochuan Hu, Gaofeng Wu, Xi Hou, Fan Wu, Sheng Li
  • Patent number: 10768117
    Abstract: Monitoring and detection of algae in surface water and wastewater is of significant importance, yet there is currently no quick and simple method to achieve this. The present work illustrates a new method to determine the concentration of algae in water and wastewater samples using spectrophotometry, the first derivative of absorbance, and a smoothing technique applied to the first derivative of absorbance (e.g. Savitzky-Golay). The relationship between algal concentration and absorbance for three types of water samples (distilled, surface, and wastewater) was determined in the visible wavelength range, and the effect of using the first derivative of absorbance method on improving algal concentration detection limit was established. Using the first derivative of absorbance method improves algal detection limits, reduces the effect of background absorbance and the resolution of overlapping spectra.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 8, 2020
    Assignee: REAL TECH HOLDINGS INC.
    Inventors: Banu Ormeci, Andrew Glover, Kerim Kollu
  • Patent number: 10760894
    Abstract: An optical detecting device is utilized to determine a relative position of a reference object or a light source according to an optical reflecting signal reflected from the reference object via an optical detecting signal emitted by the light source. The optical detecting device includes a light penetrating component, at least one light tight structure and an optical detecting component. A focal length of the light penetrating component is greater than a predetermined distance. The light tight structure is located on a region correlative to the light penetrating component. The optical detecting component is disposed by the light penetrating component and spaced from the light penetrating component by the predetermined distance. The optical reflecting signal is projected onto the optical detecting component through the light penetrating component to form a characteristic image via the light tight structure, and the characteristic image can be used to determine the relative position.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 1, 2020
    Assignee: PixArt Imaging Inc.
    Inventors: Ching-Lin Chung, Tien-Li Lin
  • Patent number: 10753797
    Abstract: Provided is a spectrum processing apparatus for removing noise, caused by a change in external environment, from a spectrum obtained by a spectrometer. The spectrum processing apparatus includes: a spectrometer configured to measure a first spectrum according to a change in external environment from a first object, and to measure a second spectrum for component analysis from a second object; and a processor configured to extract, based on the first spectrum, an eigenvector for each wavelength according to the change in external environment, and to obtain a final spectrum by correcting the second spectrum based on the extracted eigenvector for each wavelength.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Kyu Kim, Jun Ho Lee, Hyeong Seok Jang
  • Patent number: 10741459
    Abstract: In fabrication of an integrated circuit having a layer with a plurality of conductive interconnects, a layer of a substrate is polished to provide the layer of the integrated circuit. The layer of the substrate includes conductive lines to provide the conductive interconnects. The layer of the substrate includes a closed conductive loop formed of a conductive material in a trench. A depth of the conductive material in the trench is monitored using an inductive monitoring system and a signal is generated. Monitoring includes generating a magnetic field that intermittently passes through the closed conductive loop. A sequence of values over time is extracted from the signal, the sequence of values representing the depth of the conductive material over time.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 11, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Wei Lu, Zhefu Wang, Zhihong Wang, Hassan G. Iravani, Dominic J. Benvegnu, Ingemar Carlsson, Boguslaw A. Swedek, Wen-Chiang Tu
  • Patent number: 10713787
    Abstract: Systems and methods for applying an ensemble of segmentations to microscopy images of a tissue sample to determine if the tissue sample is representative of cancerous tissue. The ensemble of segmentations is applied to a plurality of greyscale or color microscopy images to generate a final image level segmentation and a final blob level segmentation. The final image level segmentation and final blob level segmentation are used to calculate a mean nuclear volume to determine if the tissue sample is representative of cancerous tissue.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: July 14, 2020
    Assignees: University of South Florida, Stereology Resource Center, Inc.
    Inventors: Peter Randolph Mouton, Dmitry Goldgof, Lawrence O. Hall, Baishali Chaudhury
  • Patent number: 10697882
    Abstract: The present disclosure relates to devices and methods configured to perform drug screening on cells. At least one embodiment relates to a lens-free device for performing drug screening on cells. The lens-free device includes a substrate having a surface. The lens-free device also includes a light source positioned to illuminate the cells, when present, on the substrate surface with a light wave. The lens-free device further includes a sensor positioned to detect an optical signal caused by illuminating the cells. The substrate surface includes a microelectrode array for sensing an electrophysiological signal from the cells.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: June 30, 2020
    Assignee: IMEC VZW
    Inventors: Veerle Reumers, Dries Braeken, Geert Vanmeerbeeck, Richard Stahl, Andy Lambrechts
  • Patent number: 10687895
    Abstract: A fiber optic probe includes a first diffuse reflectance spectroscopy fiber, a second diffuse reflectance spectroscopy fiber, and a temperature sensor at a distal end of a temperature sensor fiber. Other embodiments further include a treatment fiber for delivering a high optical power density of light to a tumor and a dosimetry fiber for monitoring the light flux of the treatment fiber. Other embodiments utilize an image-guidance step in a method of using the fiber optic probe.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: June 23, 2020
    Assignee: THE UNIVERSITY OF AKRON
    Inventor: Bing Yu