By Dispersed Light Spectroscopy Patents (Class 356/300)
  • Patent number: 11896346
    Abstract: An optical system operating in the near or short-wave infrared wavelength range identifies an object based on water absorption. The system comprises a light source with modulated light emitting diodes operating at wavelengths near 1090 and 1440 nanometers, corresponding to lower and higher water absorption. The system further comprises one or more wavelength selective filters and a housing that is further coupled to an electrical circuit and a processor. The detection system comprises photodetectors that are synchronized to the light source, and the detection system receives at least a portion of light reflected from the object. The system is configured to identify the object by comparing the reflected light at the first and second wavelength to generate an output value, and then comparing the output value to a threshold. The optical system may be further coupled to a wearable device or a remote sensing system with a time-of-flight sensor.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: February 13, 2024
    Assignee: OMNI MEDSCI, LLC
    Inventor: Mohammed N. Islam
  • Patent number: 11892407
    Abstract: A detection device, including a light-emitting component, a light-detecting component, at least one reflective optical film element, and a control unit, is provided. The light-emitting component is used for providing an excitation beam, wherein a part of the excitation beam whose dominant wavelength falls within an excitation wavelength band generates a fluorescence beam after passing through a test specimen. The light-detecting component is used for receiving a part of the fluorescence beam whose dominant wavelength falls within a detection wavelength band. The control unit is coupled to the at least one reflective optical film element. The control unit controls the at least one reflective optical film element to filter out a part of a wavelength band of an incident beam. The incident beam is at least one of the excitation beam and the fluorescence beam. A detection method of the detection device is also provided.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: February 6, 2024
    Assignee: Wistron Corporation
    Inventors: Yi Fan Hsieh, Yu-Lin Chen, Yao-Tsung Chang
  • Patent number: 11845158
    Abstract: A thickness measuring apparatus that measures a thickness of a workpiece held by a chuck table. The thickness measuring apparatus includes plural image sensors that detect intensity of light spectrally split on each wavelength basis by plural diffraction gratings and generate a spectral interference waveform and a thickness output unit that outputs thickness information from the spectral interference waveform generated by the plural image sensors.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: December 19, 2023
    Assignee: DISCO CORPORATION
    Inventors: Nobuyuki Kimura, Keiji Nomaru
  • Patent number: 11754711
    Abstract: A device includes a controller with a processor and memory with instructions for controlling power to a light source such that the light source emits a frequency-modulated continuous light beam that, over time, includes an up region, a down region, and a flat region. The up region includes increasing a frequency of the continuous light beam, the down region includes decreasing the frequency of the continuous light beam, and the flat region includes maintaining the frequency of the continuous light beam at a constant frequency.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: September 12, 2023
    Assignee: LUMINAR TECHNOLOGIES, INC.
    Inventors: Daniel J. Klemme, Pierre Asselin, Zoran Jandric
  • Patent number: 11740174
    Abstract: Described herein are apparatuses and methods for analyzing an optical signal decay. In some embodiments, an apparatus includes: a source of a beam of pulsed optical energy; a sample holder configured to expose a sample to the beam; a detector comprising a number of spectral detection channels configured to convert the optical signals into respective electrical signals; and a signal processing module configured to perform a method. In some embodiments, the method includes: receiving the electrical signals from the detector; mathematically combining individual decay curves in the electrical signals into a supercurve, the supercurve comprising a number of components, each component having a time constant and a relative contribution to the supercurve; and quantifying a relative contribution of each component to the supercurve.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: August 29, 2023
    Assignee: KINETIC RIVER CORP.
    Inventors: Giacomo Vacca, Ralph Jimenez
  • Patent number: 11733234
    Abstract: Compositions, devices and methods are described for improving adhesion, attachment, and/or differentiation of cells in a microfluidic device or chip. In one embodiment, one or more ECM proteins are covalently coupled to the surface of a microchannel of a microfluidic device. The microfluidic devices can be stored or used immediately for culture and/or support of living cells such as mammalian cells, and/or for simulating a function of a tissue, e.g., a liver tissue, muscle tissue, etc. Extended adhesion and viability with sustained function over time is observed.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: August 22, 2023
    Assignee: EMULATE, INC.
    Inventors: Daniel Levner, Kyung Jin Jang, Jacob Fraser, S. Jordan Kerns, Antonio Varone, Dongeun Huh
  • Patent number: 11680850
    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: July 29, 2021
    Date of Patent: June 20, 2023
    Assignee: SOL INC.
    Inventors: Jong Muk Lee, Tae Young Lee, Jae In Kim
  • Patent number: 11678805
    Abstract: An active remote sensing system is provided with an array of laser diodes that generate light directed to an object having one or more optical wavelengths that include at least one near-infrared wavelength between 700 nanometers and 2500 nanometers. One of the laser diodes pulses with pulse duration of approximately 0.5 to 2 nanoseconds at repetition rate between one kilohertz and about 100 megahertz. A beam splitter receives the laser light, separates the light into a plurality of spatially separated lights and directs the lights to the object. A detection system includes a photodiode array synchronized to the array of laser diodes and performs a time-of-flight measurement by measuring a temporal distribution of photons received from the object. The time-of-flight measurement is combined with images from a camera system, and the remote sensing system is configured to be coupled to a wearable device, a smart phone or a tablet.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: June 20, 2023
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 11646329
    Abstract: An image capture device 1001 captures an image by using a terahertz wave and includes a generating unit 112 that includes a plurality of generation elements each of which generates the terahertz wave and rests on a resting plane 117, an irradiation optical system 111 that irradiates an object with the terahertz wave, an imaging optical system 101 that images the terahertz wave that is reflected from the object, and a sensor 102 that includes pixels. The plurality of generation elements include at least a first generation element 113 and a second generation element 114 that have different angles of radiation to the object. There is an overlap region in which a region of radiation of a first terahertz wave 156 from the first generation element to the object overlaps a region of radiation of a second terahertz wave 157 from the second generation element to the object.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: May 9, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeaki Itsuji, Noriyuki Kaifu
  • Patent number: 11604144
    Abstract: A system is provided. The system has a femtosecond oscillator to generate pulses used for pump and probe beams. A photonic crystal fiber is disposed in a path of the probe beam and produces pulses for a chirped probe beam. A high NA objective receives the pump and the chirped probe beam, redirects the received beams through a dielectric substrate towards an interface between a sample and the dielectric substrate to cause total internal reflection (TIR) at the sample-substrate interface, and produces corresponding evanescent waves in a portion of the sample adjacent to the sample-substrate interface, and collects a backward-propagating beam of pulses of responsive light. The portion of the sample illuminated by the evanescent waves emits responsive light. The dielectric substrate is transparent to the responsive light, the pump and the chirped probe beam. An image is produced having a specific image size using the received backward-propagating beam.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: March 14, 2023
    Assignee: UT-BATTELLE, LLC
    Inventors: Benjamin L. Doughty, Yingzhong Ma
  • Patent number: 11598942
    Abstract: A multi-channel line microscope for single molecule Fluorescence In Situ Hybridization (FISH) imaging of a sample. A microscope stage moves a sample across two or more reflected excitation lines positioned relative to each other so that each excitation line excites a spatially distinct horizontal line in the image plane of the sample. A sample is imaged by moving the microscope stage across two or more reflected excitation lines positioned relative to each other so that each excitation line excites a spatially distinct horizontal line in the image plane of the sample. The apparatus and methods of use are suitable for a broad range of applications.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: March 7, 2023
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventor: Long Cai
  • Patent number: 11596311
    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: February 7, 2022
    Date of Patent: March 7, 2023
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 11579013
    Abstract: An integrated computing element for an optical computing device includes a flexible optical substrate. The integrated computing element also includes at least one optical thin film deposited on a first surface of the flexible optical substrate. The at least one optical thin film is configured to selectively pass fractions of electromagnetic radiation at different wavelengths.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: February 14, 2023
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jian Li, James M. Price, Bin Dai, Christopher M. Jones, Daniel Stark
  • Patent number: 11564622
    Abstract: An apparatus for generating a metabolism model may include a processor configured to obtain a predetermined number of bio-information profiles from a bio-sensor, extract a representative bio-information profile from the obtained predetermined number of bio-information profiles, and generate the metabolism model for correcting an error of the bio-sensor by using the extracted representative bio-information profile.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Kyu Kim, So Young Lee, Ka Ram Choi
  • Patent number: 11561174
    Abstract: A system is provided comprising an FTIR spectrometer configured to obtain a Fourier Transformed infrared (FTIR) spectrum of a Peripheral Blood Mononuclear Cells (PBMC) sample of the subject; a data processor operable with the FTIR spectrometer, and configured to analyze the infrared (IR) spectrum of the Peripheral Blood Mononuclear Cells (PBMC) sample of the subject by assessing a characteristic of the sample of the subject at at least one wavenumber; and an output unit, configured to generate an output indicative of the presence of a solid tumor, based on the infrared (IR) spectrum. Other embodiments are also provided.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: January 24, 2023
    Assignee: TODOS MEDICAL LTD.
    Inventors: Joseph Kapelushnik, Shaul Mordechai, Ilana Nathan, Udi Zelig, Rami Zigdon
  • Patent number: 11555811
    Abstract: An integrated rapid non-destructive detection system for multi-index of meat quality comprises a spectrometer for obtaining near-infrared spectra of a sample; an industrial tablet computer, comprising: a model embedding module for storing multiple prediction models; a model determining module connected with model embedding module and configured to call prediction model; an index prediction module connected with spectrometer and model determining module for receiving near-infrared spectra and predicting index data of the sample combining with called prediction model; wherein the number of detector elements of spectrometer is determined by an ultimate minimal resolution, and a resolution of the sample is controlled to the ultimate minimal resolution during an acquisition process; which realizes automatic black-white calibration, non-destructive detection of multi-index, improves building efficiency of model, while maintaining building stability, and optimizes detection instrument volume.
    Type: Grant
    Filed: May 1, 2022
    Date of Patent: January 17, 2023
    Assignee: INSTITUTE OF FOOD SCIENCE AND TECHNOLOGY, CHINESE ACADEMY OF AGRICULTURAL SCIENCES
    Inventors: Dequan Zhang, Xiaochun Zheng, Li Chen, Shaobo Li, Xin Li, Chengli Hou
  • Patent number: 11536653
    Abstract: A photoplethysmographic (PPG) device is disclosed. The PPG device can include one or more light emitters and one or more light sensors to generate the multiple light paths for measuring a PPG signal and perfusion indices of a user. The multiple light paths between each pair of light emitters and light detectors can include different separation distances to generate both an accurate PPG signal and a perfusion index value to accommodate a variety of users and usage conditions. In some examples, the multiple light paths can include the same separation distances for noise cancellation due to artifacts resulting from, for example, tilt and/or pull of the device, a user's hair, a user's skin pigmentation, and/or motion. The PPG device can further include one or more lenses and/or reflectors to increase the signal strength and/or and to obscure the optical components and associated wiring from being visible to a user's eye.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 27, 2022
    Assignee: Apple Inc.
    Inventors: Chin San Han, Ueyn Block, Brian R. Land, Nevzat Akin Kestelli, Serhan Isikman, Albert Wang, Justin Shi
  • Patent number: 11513004
    Abstract: Embodiments are disclosed for terahertz spectroscopy and imaging in dynamic environments. In an embodiment, a transmitter of an electronic device emits a continuous electromagnetic (EM) wave in the terahertz (THz) frequency band into a dynamic environment that includes a transmission medium that changes over time. A receiver of the electronic device, receives an EM wave reflected off an object in the environment and determines a spectral response of the reflected EM wave. The spectral response includes absorption spectra at a frequency in the THz frequency band that is indicative of a known target transmission medium. The absorption spectra of the target transmission medium and a path length of the reflected EM wave signal are used to obtain the concentration level of the target transmission medium from a reference library of known concentration levels.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: November 29, 2022
    Assignee: Apple Inc.
    Inventors: Chia-Chi Chen, Vusthla Sunil Reddy, Sireesha Ramisetti, Peter M. Agboh, Mohit Narang, Vijendrakumar K. Ashiwal
  • Patent number: 11506536
    Abstract: According to one embodiment, there is provided a measuring apparatus including a measurement section and a control section. The measurement section is configured to acquire a response from a sample. The control section is configured to compare a loading obtained by performing principal component analysis in advance with a first evaluation-use loading obtained by performing principal component analysis onto the response acquired from the sample, and to generate a first reliability index for measurement using principal component analysis, in accordance with a comparison result.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: November 22, 2022
    Assignee: Kioxia Corporation
    Inventor: Taro Shiokawa
  • Patent number: 11488709
    Abstract: A device for providing drug verification may work in conjunction with drug delivery devices such as medical pumps to provide a chemical and concentration analysis of drugs being delivered forming a signature that can be compared to a signature associated with the proper drug, reducing errors in medicine delivery and ensuring proper use of medicines throughout their lifecycle.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 1, 2022
    Assignee: Zyno Medical, LLC
    Inventors: Chao Young Lee, Mei Zhang
  • Patent number: 11480522
    Abstract: A method and system for optical vortex transmissometry. The method uses optical orbital angular momentum (OAM) and optical vortices to discriminate coherent non-scattered light from incoherent scattered light. The system includes a laser which transmits a Gaussian laser beam through a medium. An OAM generating device is placed before a photodetector receiver. Coherent, non-scattered light passing through the OAM generating device forms an optical vortex, used to discriminate against the unwanted scattered signal that does not form a vortex. Alternatively, the system includes a transmitter, which generates one or more OAM modes, which are transmitted through a turbid medium. At the receiver, an OAM detection device analyzes the OAM mode spectrum of the received light. Coherent non-scattered light retains the OAM encoded at the transmitter, while scattered light does not. The attenuation of the channel is determined by comparison of the received OAM mode spectrum relative to the transmitted OAM mode spectrum.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: October 25, 2022
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Brandon Cochenour, Amanda Alley, Alan Edward Laux, Linda Mullen
  • Patent number: 11482034
    Abstract: The present invention relates to a device and method for detecting light allowing retrieval of a physiological parameter of a user carrying said device. To improve the efficiency of light capturing, the device (1, 2, 3, 4) comprises a light source (10) arranged for emitting light of at least a first wavelength into tissue of the subject, a wavelength converter (20) arranged for receiving at least part of the emitted light after interaction of the emitted light with the tissue and for converting the received light into at least a second wavelength different from the first wavelength, and a light sensor (30) arranged for receiving light converted by said wavelength converter.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: October 25, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Yannyk Parulian Julian Bourquin
  • 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: 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: 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: 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: 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: 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: 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