Patents Examined by Carolyn Fin
  • Patent number: 11408979
    Abstract: Electro-optical sighting systems and methods are provided. One example includes a optical transmitter configured to emit an infrared beam along an optical path toward a target, a beam director positioned in the optical path and having a plurality of optical elements configured to direct the infrared beam and to collect reflected infrared radiation from reflection of the beam from the target, a focal plane array detector configured to receive reflected infrared radiation from the beam director, an optical phased array (OPA) positioned in the optical path between the optical transmitter and the beam director, and a controller operatively coupled to the OPA and configured to direct the OPA to defocus the infrared beam to broaden a field of view of the optical transmitter for active illumination, and focus the infrared beam to narrow the field of view of the optical transmitter for range determination and/or target designation.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 9, 2022
    Assignee: RAYTHEON COMPANY
    Inventor: Philip T. Shimon
  • Patent number: 11385186
    Abstract: An inspection device of the present invention includes: THz wave irradiation unit for irradiating a specimen with THz waves; a THz wave sensing unit for detecting transmitted waves or reflected waves of the THz waves emitted to the specimen; and an information processing unit for acquiring intensity distribution of the transmitted waves of the reflected waves of the specimen from the intensity data of the transmitted waves or the reflected waves of the specimen irradiated with the THz waves, wherein the information processing unit acquires 2-dimensional intensity distribution of the transmitted waves or reflected waves, and detects whether a foreign matter is adhering to the specimen by comparing the intensity distribution obtained when the specimen without attachment of the foreign matter is detected and the intensity distribution obtained when the specimen is detected at the time of inspection. The specimen is a sheet of paper, for example.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 12, 2022
    Assignee: LAUREL PRECISION MACHINES CO., LTD.
    Inventors: Yutaka Oyama, Kouichi Goi
  • Patent number: 11364001
    Abstract: The invention is an imaging device comprising detector and collimator element (144) applied e.g. in a SPECT.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: June 21, 2022
    Assignee: Mediso Medical Imaging Systems KFT.
    Inventors: Istvan Bagamery, Tamas Bukki, Andras Wirth
  • Patent number: 11329186
    Abstract: An apparatus (201) comprises a light emitter (202) and a photodetector (203) formed on a single fluid-permeable substrate (206) such that the photodetector (203) is able to detect light emitted by the light emitter (202) after interaction of the light with a user of the apparatus (201). The photodetector comprises a channel member (207) which may be made from graphene, respective source and drain electrodes (208, 209), a layer of photosensitive material (210) configured to vary the flow of electrical current through the channel member (207) on exposure to light from the light emitter (202), and a gate electrode (211).
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 10, 2022
    Assignee: Nokia Technolgies Oy
    Inventors: Alexander Bessonov, Darryl Cotton, Adam Robinson
  • Patent number: 11322007
    Abstract: A danger detector, for example a flame detector, includes an alarm housing with an alarm cover. The housing part of the alarm cover is permeable to heat radiation in the central infrared range. A non-contact, optical heat radiation sensor which is sensitive to the incoming heat radiation and optically oriented to the housing part is arranged in the alarm housing. A processing unit for further processing a sensor signal emitted by the heat radiation sensor is mounted downstream of the heat radiation sensor. The processing unit is designed to monitor the signal emitted by the sensor with respect to significant fluctuations or flicker frequencies for open flames and to determine, based on a direct component of the signal emitted by the sensor, a temperature value for the ambient temperature in the surroundings of the danger detector. The heat radiation sensor may be a thermopile or a bolometer.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: May 3, 2022
    Assignee: SIEMENS SCHWEIZ AG
    Inventors: Martin Fischer, Matthias Stutz
  • Patent number: 11307140
    Abstract: A signal acquisition device includes: a light source that oscillates pulsed laser light at a specific repetition period; an optical system that focuses the laser light onto a sample, and that collects generated fluorescence; a photodetector that detects the fluorescence collected by the optical system; an A/D converter that samples an intensity signal of the detected fluorescence, in synchronization with the repetition period of the light source unit, at a period that is an integer multiple of the repetition period, and that generates a digital intensity signal; and one or more processors comprising hardware, the one or more processors being configured to: obtain a fluorescence lifetime waveform on a basis of the generated digital intensity signal; and calculate a fluorescence lifetime coefficient from a waveform obtained by removing a region not corresponding to an exponential function from the obtained fluorescence lifetime waveform.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: April 19, 2022
    Assignee: OLYMPUS CORPORATION
    Inventor: Kentaro Imoto
  • Patent number: 11287379
    Abstract: A system for detecting signal components of light induced by multiple excitation sources including: a flow channel including at least two spatially separated optical interrogation zones; a non-modulating excitation source that directs a light beam of a first wavelength at a near constant intensity onto a first of the optical interrogation zones; a modulating excitation source that directs a light beam of a second wavelength with an intensity modulated over time at a modulating frequency onto a second of the optical interrogation zones; a detector subsystem comprising a set of detectors configured to detect light emitted from particles flowing through the at least two optical interrogation zones and to convert the detected light into a total electrical signal; and a processor that determines signal components from the light detected from each of the optical interrogation zones.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 29, 2022
    Assignee: Agilent Technologies, Inc.
    Inventors: Nan Li, Jian Wu, Ye Chen, Tianxing Wang, Xiaobo Wang
  • Patent number: 11268861
    Abstract: An SMD-enabled infrared thermopile sensor has at least one miniaturized thermopile pixel on a monolithically integrated sensor chip accommodated in a hermetically sealed housing which consists of an at least partially non-metallic housing substrate and a housing cover. A gas or a gas mixture is contained in the housing. The sensor has a particularly low overall height, in particular in the z direction. This is achieved by virtue of an aperture opening being introduced in the housing cover opposite the thermopile pixel(s), which aperture opening is closed with a focusing lens which focuses the radiation from objects onto the thermopile pixel(s) on the housing substrate, and by virtue of a signal processing unit being integrated on the same sensor chip next to the thermopile pixels, wherein the total housing height and the housing cover are at most 3 mm or less than 2.5 mm.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: March 8, 2022
    Assignee: Heimann Sensor GmbH
    Inventors: Jörg Schieferdecker, Frank Herrmann, Christian Schmidt, Wilhelm Leneke, Marion Simon, Karlheinz Storck, Mischa Schulze
  • Patent number: 11269085
    Abstract: First and second pulse height detection circuits output pulse height detection signals which rise when a detection pulse obtained from a radiation detector becomes greater than a lower threshold Lsh or an upper threshold Hsh, and fall when the detection pulse is smaller than the lower threshold Lsh or the upper threshold Hsh. Next, first and second rising and falling detection circuits detect rising and falling edges of the pulse height detection signals from the first and second pulse height detection circuits in synchronization with a clock pulse from a crystal oscillator, and a combining circuit outputs a signal corresponding to the detection pulse that is within a range between the lower threshold Lsh and the upper threshold Hsh by combining both outputs from the first and second rising and falling detection circuits, in synchronization with the clock pulse.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: March 8, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidetaka Yahata, Toshimitsu Nakai
  • Patent number: 11255659
    Abstract: Non-contacting caliper measurements of free-standing sheets detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface and scanning the laser beam through a selected wavelength range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected from the exposed outer surface and from the inner surface. Alternatively, the intensity of an interference pattern formed from the superposition of radiation that is directly transmitted through the web and radiation that is transmitted through the web after internal reflections from the internal surfaces of the web. Thickness can be extracted from the fringe separation in the interference pattern.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 22, 2022
    Assignee: Honeywell ASCa
    Inventors: Michael Kon Yew Hughes, Sebastien Tixier, Stephane Savard
  • Patent number: 11250681
    Abstract: A smoke detector comprising an enclosure communicating with an external environment, within the enclosure a light source illuminating a detection volume in a first wavelength band and a light-sensor responding to light from the sensing volume in a second wavelength band. The detector is configured to sense photo-luminescent fire products, particularly polyaromatic compounds, and actuate an alarm when signal levels indicate a dangerous/fire condition is present. The photo-luminescence detector may be combined with optical scatter or other fire detectors to improve discrimination between fires and false alarm sources.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: February 15, 2022
    Assignee: Johnson Controls Fire Protection LP
    Inventor: John Shaw
  • Patent number: 11231318
    Abstract: A photoconductive device that includes a semiconductor substrate, an antenna assembly, and a photoconductive assembly with one or more plasmonic contact electrodes. The photoconductive assembly can be provided with plasmonic contact electrodes that are arranged on the semiconductor substrate in a manner that improves the quantum efficiency of the photoconductive device by plasmonically enhancing the pump absorption into the photo-absorbing regions of semiconductor substrate. In one exemplary embodiment, the photoconductive device is arranged as a photoconductive source and is pumped at telecom pump wavelengths (e.g., 1.0-1.6 ?m) and produces milliwatt-range power levels in the terahertz (THz) frequency range.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: January 25, 2022
    Assignee: The Regents of the University of California
    Inventors: Mona Jarrahi, Nezih Tolga Yardimci
  • Patent number: 11215566
    Abstract: A system and method for internally inspecting a tubular composite part so as to identify and measure adhesive flow therewithin are provided, along with an endpoint adapter assembly of a near infrared (NIR) spectrometer. The system includes an end point adapter that fits within and maintains a consistent cross-sectional position within the tubular composite part. The system also includes a plurality of optical fibers extending radially outward from the end point adapter. The end point adapter moves longitudinally through the tubular composite part and receives light with the plurality of optical fibers following interaction of the light with the tubular composite part. The system further includes a NIR imaging spectrometer configured to disperse the light being collected by the plurality of optical fibers across an NIR spectrum and a NIR camera configured to generate images of the tubular composite part based on dispersed light.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: January 4, 2022
    Assignee: The Boeing Company
    Inventors: Paul H. Shelley, Jr., Christopher Wayne Fay
  • Patent number: 11215551
    Abstract: A particle counting system includes a particle counting means and pre-stage irradiation means. The particle counting means counts particles existing in a fluid by irradiating the fluid containing target particles with light at a predetermined wavelength, separating selectively autofluorescence or phosphorescence emitted from the target particles by the radiated light, receiving the separated autofluorescence or phosphorescence, and determining that the target particles are the particles according to the received autofluorescence or phosphorescence. The pre-stage irradiation means irradiates the fluid with ultraviolet light in advance before the particle counting means irradiates the fluid with the light at the predetermined wavelength. The particle counting means includes a band-pass filter that allows light having a wavelength of 450 nm to 600 nm to pass therethrough.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: January 4, 2022
    Assignee: RION CO., LTD.
    Inventor: Kazuma Sekimoto
  • Patent number: 11150188
    Abstract: There are provided a control device of an image reading apparatus, an operation method and an operation program thereof, and an image detection system capable of quickly and easily outputting an image having an appropriate density for analysis from an image reading apparatus. An image receiving unit receives a pre-image output in pre-scanning performed before main scanning for outputting a main image for analysis in an image reading apparatus. A region information receiving unit receives information of a region in the pre-image designated by a user. A calculation unit calculates an appropriate voltage value that is a voltage value of the photomultiplier at which a density of the region becomes an appropriate density for analysis. A scanning conditions setting unit sets the appropriate voltage value as temporary scanning conditions of main scanning.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: October 19, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Takashi Kobayashi
  • Patent number: 11131779
    Abstract: The present invention includes: a radiation detecting unit including a fluorescent body expressed by the formula ATaO4: B, C (in the formula, A is selected from at least one kind of element from among rare-earth elements involving 4f-4f transitions, B is selected from at least one kind of element, different from A, from among rare-earth elements involving 4f-4f transitions, and C is selected from at least one kind of element from among rare-earth elements involving 5d-4f transitions); an optical fiber that transmits photons generated by the fluorescent body; a light detector that converts the photons transmitted via the optical fiber 3 one by one into electrical pulse signals; a counter that counts the number of electrical pulse signals converted by the light detector; an analysis and display device 6 that obtains a radiation dose rate on the basis of the number of electrical pulse signals counted by the counter.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: September 28, 2021
    Assignee: HITACHI, LTD.
    Inventors: Shuichi Hatakeyama, Takahiro Tadokoro, Yuichiro Ueno, Yasushi Nagumo, Katsunori Ueno, Kouichi Okada
  • Patent number: 11112305
    Abstract: A photoconductive device that includes a semiconductor substrate, an antenna assembly, and a photoconductive assembly with one or more plasmonic contact electrodes. The photoconductive assembly can be provided with plasmonic contact electrodes that are arranged on the semiconductor substrate in a manner that improves the quantum efficiency of the photoconductive device by plasmonically enhancing the pump absorption into the photo-absorbing regions of semiconductor substrate. In one exemplary embodiment, the photoconductive device is arranged as a photoconductive source and is pumped at telecom pump wavelengths (e.g., 1.0-1.6 ?m) and produces milliwatt-range power levels in the terahertz (THz) frequency range.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: September 7, 2021
    Assignee: The Regents of the University of California
    Inventors: Mona Jarrahi, Christopher W. Berry, Ning Wang
  • Patent number: 11086115
    Abstract: A microscope apparatus includes an illumination optical system that emits activating light and exciting light, an image capturing unit that captures an image formed by an imaging optical system, an image processing unit that carries out image processing using an image capturing result from the image capturing unit, and a controller. The controller provides a plurality of image generation periods and interrupt periods; causes, in the image generation periods, the activated fluorescent material to be irradiated with the exciting light and causes the image capturing unit to capture an image of the fluorescent light from the activated fluorescent material in a plurality of frame periods; and sets an intensity of the exciting light in the interrupt periods to be lower than an intensity in the image generation periods or causes the emission of the exciting light to stop in the interrupt periods.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 10, 2021
    Assignee: NIKON CORPORATION
    Inventors: Wataru Tomosugi, Kenji Takatsuka
  • Patent number: 11085877
    Abstract: Methods and apparatus are provided for determining the refractive index of a downhole fluid. Two unalike crystals are provided having faces in contact with fluid in the fluid flow line of a borehole tool. The crystals are chosen to have different refractive indices and/or different angles of incidence, but to provide total internal reflection for light that is directed through the crystals to the crystal/fluid interface. The measured attenuations for each crystal are used in conjunction with the known refractive indices and angles of incidence of said crystals to determine the refractive index of the fluid.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: August 10, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Richa Sharma, Raji Shankar, Terizhandur S. Ramakrishnan
  • Patent number: 11022545
    Abstract: A system and method for multi-spectral gas concentration analysis that includes using a library of multiple sets of optimized spectral sensitivities prepared in advance, and a multi-spectral IR gas analyzer tuned to a set of optimized spectral sensitivity. The multi-spectral IR gas analyzer measures spectral absorption of gas using one or more different sets of optimized spectral sensitivities.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 1, 2021
    Assignee: Konica Minolta Business Solutions U.S.A., Inc.
    Inventors: Leiming Wang, Po-Chieh Hung