Patents Examined by Yara B Green
  • Patent number: 10451746
    Abstract: A method of operation of a scintillator detector includes a scintillator and a photodetector is described, together with a device embodying the method. The method includes the steps of: periodically producing a light pulse; impinging at least some of the light from a successive plurality of such light pulses onto a light-receptive part of the photodetector; measuring the electrical response of the photodetector; processing the electrical response of the photodetector to determine a pulse height and a variance of pulse height; numerically processing the pulse height and variance of pulse height so determined to obtain at least a first data item characteristic of the response of the photodetector.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 22, 2019
    Assignee: Kromek Limited
    Inventor: Edward Marsden
  • Patent number: 10451487
    Abstract: Microbolometer arrays incorporating per-pixel dark reference structures for non-uniformity correction.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 22, 2019
    Inventors: Adam M. Kennedy, Eli E. Gordon, Eric J. Beuville, Ryan Paul Boesch, Jeffrey K. Hamers
  • Patent number: 10441238
    Abstract: A radiation imaging apparatus is provided. The apparatus comprises a scintillator configured to convert radiation into light, a sensor panel in which a plurality of pixels each comprising a light detector configured to detect the light is arranged, and a processing unit. The processing unit comprises a conversion unit configured to output a detection signal in accordance with a signal generated in the light detector by the incident light and radiation that has transmitted through the scintillator without being converted into light, and a reset control unit configured to determine that the light detector detects the transmitted radiation based on a magnitude of the detection signal and reset the conversion unit if the light detector is determined to detect the transmitted radiation.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 15, 2019
    Inventors: Kosuke Terui, Atsushi Iwashita, Katsuro Takenaka, Shinichi Takeda
  • Patent number: 10433798
    Abstract: An aperture comprises blocking members and for blocking X-rays. The blocking member has: an edge formed on an arc A1 lying on a circumference CF2 of a circle with radius r2 around a focal spot f in an XY-plane; an edge connected to one endpoint of the edge, the edge being formed to lie on the side of the X-ray detector with respect to an arc A11 contiguous to the arc A1; and an edge connected to the other endpoint of the edge, the edge being formed to lie on the side of the X-ray detector with respect to an arc A12 contiguous to the arc A1.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: October 8, 2019
    Assignee: General Electric Company
    Inventors: Kentaro Ogata, Kotaro Yamaura, Brandon Allan Smith
  • Patent number: 10429542
    Abstract: A method for estimating an environmental parameter includes transmitting a first interrogation signal into an optical fiber, receiving a reflected return signal including light reflected from one or more of the plurality of FBG's in the fiber and receiving at a processor data describing the reflected return signal. The received data is comparted to expected data to determine a shift in wavelength of light reflected for one or more of the plurality of FBGs and a change in a length of a dead zone of the optical fiber based on the comparison is also determined. From this, estimates of locations two or more of the plurality of FBG's are formed.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: October 1, 2019
    Inventors: Brooks A Childers, Christopher J Fazio, Roger Glen Duncan
  • Patent number: 10429541
    Abstract: Two or more Integrated Computational Element (“ICE”) structures are designed and utilized in an optical computing device to combinatorily reconstruct spectral patterns of a sample. To design the ICE structures, principal component analysis (“PCA”) loading vectors are derived from training spectra. Thereafter, two or more ICE structures having spectral patterns that match the PCA loading vectors are selected. The selected ICE structures may then be fabricated and integrated into an optical computing device. During operation, the ICE structures are used to reconstruct high resolution spectral data of the samples which is utilized to determine a variety of sample characteristics.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: October 1, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Bin Dai, Chris Jones, Dingding Chen
  • Patent number: 10429628
    Abstract: Methods and apparatus for deep microscopic super resolution imaging use two independent and variable focal planes. Movements of fiducial markers imaged using one focal plane are monitored and used to provide real-time or near real-time correction for sample drift. A second focal plane may be used to collect light for super-resolution imaging of a sample. A prototype embodiment has produced low drift when imaging many microns deeper than the fiducial markers.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: October 1, 2019
    Assignee: The University of British Columbia
    Inventors: Keng C. Chou, Reza Tafteh
  • Patent number: 10422699
    Abstract: A hybrid plasmonic-pyroelectric detector and laser detection system is disclosed. The hybrid plasmonic-pyroelectric detector includes a substrate and a refractory ground plane mounted on a surface of the substrate. A plasmonic array defines a plurality of apertures formed in the array. A highly-oriented pyroelectric layer is mounted on a surface of the ground plane and a surface of the plasmonic array. The plasmonic array is constructed and arranged to select particular wavelengths. Alternatively, a semiconductor or an avalanche material may be used. A pair of electrode contacts are coupled to each of the plasmonic array and the refractory ground plane. A laser detection system in accordance with the disclosure includes a mechanical chopper, a lens, a folding mirror, and a chip carrier for mounting the hybrid plasmonic-pyroelectric detector.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 24, 2019
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Jarrett H. Vella, Joshua Hendrickson, Justin W. Cleary, Shivashankar R. Vangala
  • Patent number: 10422698
    Abstract: Systems, methods, and apparatus for providing electromagnetic radiation sensing. The apparatus includes a radiation detection sensor including a plurality of micromechanical radiation sensing pixels having a reflecting top surface and configured to deflect light incident on the reflective surface as a function of an intensity of sensed radiation. In some implementations, the apparatus has equal sensitivities for at least some of the sensing pixels. In some implementations, the apparatus can provide adjustable sensitivity and measurement range. The apparatus can be utilized for human detection, fire detection, gas detection, temperature measurements, environmental monitoring, energy saving, behavior analysis, surveillance, information gathering and for human-machine interfaces.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: September 24, 2019
    Inventors: Marek Steffanson, Donald James Bone
  • Patent number: 10420491
    Abstract: Optical-electronic device configured to generate a calibration factor for use in determining optical density. The device includes at least one emitter configured to emit light, a detector configured to receive light and transmit data representative of the received light and a processor coupled to the at least one emitter and the detector. The device further includes a non-transitory storage medium coupled to the processor and configured to store instruction to cause the device to perform the calibration method. Additionally, a calibration container includes a main body, upper lid, and a lower lid. The main body is configured to receive the device and an object having known optical properties.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 24, 2019
    Assignee: LVL Technologies, Inc.
    Inventors: Nithin O. Rajan, Dustin M. Freckleton, Paulo E. Xavier da Silveira, Byron Olson
  • Patent number: 10416322
    Abstract: A device for determining the location of a source of radiation, based on data acquired at a single orientation of the device without iteration or rotations. Embodiments may comprise two side detector panels positioned closely parallel to each other and adjacent to each other, plus a front detector positioned orthogonally in front of the side detectors, without collimators or shields. The various detectors have contrasting angular sensitivities, so that a predetermined angular correlation function can determine the sign and magnitude of the source angle according to the detection rates of the front and side detectors. Embodiments enable rapid detection and localization of nuclear and radiological weapon materials for greatly improved inspection of cargo containers and personnel. Advanced detectors such as those disclosed herein will be needed in the coming decades to protect against clandestine weapon transport.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: September 17, 2019
    Inventor: David Edward Newman
  • Patent number: 10412325
    Abstract: Systems and methods for hyperspectral and multispectral imaging are disclosed. A system includes a lens and an imaging device having a plurality of pixel sensors. A focus corrector is located within the optical path to refract at least a portion of the incoming light and change the focusing distance of specific wavelengths of light to converge at a focal plane. The focal corrector is selected based upon the imaging system to reduce an overall measure of deviation between a focal length curve for the lens and a focus position curve for pixel sensors to produce focused imaging data for a broad spectrum of light, including beyond the visible range.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: September 10, 2019
    Assignee: Urugus S.A.
    Inventors: Gerardo Gabriel Richarte, Agustina Pose, David Vilaseca, Pablo Jais, Juan Manuel Vuletich
  • Patent number: 10405823
    Abstract: A radiation imaging apparatus secures subject safety and includes a wireless communication unit of an operation panel and a wireless communication unit of a control unit performing periodical wireless communication. While operating, it is determined if wireless communication unit of the control unit is receiving a wireless communication signal from the wireless communication unit of the operation panel, or not. Then, when the wireless communication unit of the control unit is not receiving the wireless communication signal from the wireless communication unit of the operation panel, a movement control element of the control unit executes an emergency shutdown operation to halt movement of a support table, a X-ray tube, a collimator and a X-ray detector.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: September 10, 2019
    Inventors: Keita Okutani, Masahiro Tanaka
  • Patent number: 10408950
    Abstract: An image acquisition apparatus includes a fiber optic member including optical fibers, and transmitting an optical image from an input end face to an output end face, an imaging device including pixels, imaging the optical image from the output end face, and outputting an image, and an image processing device performing flat field correction of a fixed pattern noise for the image from the imaging device. The image processing device sets a first switching point of the correction on the basis of a noise peak point, performs the flat field correction in a case where output intensity from an object pixel of the image is lower than first switching intensity at the first switching point, and does not perform the correction in a case where the output intensity is higher than the first switching intensity.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: September 10, 2019
    Inventor: Kenta Matsuoka
  • Patent number: 10393875
    Abstract: An adjustable security sensor device is described. The device comprises a time of flight sensor, a user input element, and a processor. The time of flight sensor generates a first set of sample distance measurements based on a first position of the time of flight sensor relative to the reflector, in response to receiving the identification of the first position of the device relative to the reflector. The processor associates the identification of the first position with the first set of sample distance measurements. A second set of sample distance measurements is measured based on a second position of the time of flight sensor relative to the reflector. The processor compares a first range of the first set of sample distance measurements with a second range of the second set of sample distance measurements, and identifies a position of the device relative to the reflector based on the comparison.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: August 27, 2019
    Assignee: Nortek Security & Control LLC
    Inventor: Sivakumar Kathan
  • Patent number: 10393890
    Abstract: In an X-ray imaging device according to a first embodiment, an X-ray detector has a configuration in which scintillator elements are defined by light-shielding walls in a lattice shape. Among X-rays incident on the X-ray detector, X-rays incident on the light-shielding walls are not converted into scintillator light and are transmitted by the X-ray detector. Accordingly, by causing X-rays to be incident on the X-ray detector in which the scintillator elements are defined by the light-shielding walls in a lattice shape, an area in which X-rays 3a transmitted by a subject M are incident on the X-ray detector can be limited to an arbitrary range. Accordingly, since a detection mask can be omitted in the X-ray imaging device which is used for EI-XPCi, it is possible to reduce a manufacturing cost of the X-ray imaging device.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: August 27, 2019
    Inventors: Koichi Tanabe, Shingo Furui, Toshinori Yoshimuta, Kenji Kimura, Akihiro Nishimura, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba, Toshiyuki Sato
  • Patent number: 10386301
    Abstract: Methods and devices are disclosed for the imaging of a biological sample with a top-down camera and a side-view camera. A biological sample is held on an imaging stage that is capable of rotation in two orthogonal axes. The top-down and side-view cameras can record a series of images of the sample using multiple imaging modalities at different rotational positions of the imaging stage. The top-down camera can be translated along its optical axis to affect the camera zoom and influence the resolution and field of view of the recorded images. Fluorescence excitation light sources can be positioned proximate to each of the top-down and side-view cameras to provide substantially uniform illumination of the sample for imaging with each camera.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: August 20, 2019
    Assignee: LI-COR, INC.
    Inventors: Han-Wei Wang, Lyle R. Middendorf
  • Patent number: 10386313
    Abstract: Apparatus for X-ray scatterometry includes an X-ray source, which directs an X-ray beam to be incident at a grazing angle on an area of a surface of a sample, and an X-ray detector measures X-rays scattered from the area. A knife edge is arranged parallel to the surface of the sample in a location adjacent to the area so as to define a gap between the surface and the knife edge and to block a portion of the X-ray beam that does not pass through the gap. A motor moves the knife edge perpendicular to the surface so as to control a size of the gap. An optical rangefinder receives optical radiation reflected from the surface and outputs a signal indicative of a distance of the knife edge from the surface. Control circuitry drives the motor responsively to the signal in order to regulate the size of the gap.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: August 20, 2019
    Inventors: Isaac Mazor, Yuri Vinshtein, Matthew Wormington, Nikolai Kasper
  • Patent number: 10379048
    Abstract: An imaging device is described that uses multiple cameras to image a biological sample on a turntable bathed in white light or fluorescing due to a systemically administered dye. Fluorescence farther away from an excitation light source can be compensated upon determining a 3-D position of portions of the sample. The turntable is turned and tilted in order to take enough images to prepare an animation of the sample. In a graphical user interface, the animation can be stopped, zoomed, and tilted per a user's gesture, touch, tablet-tilting, or other commands. The image manipulation can be with touch gestures entered using a sterilizable or disposable touch pen.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: August 13, 2019
    Assignee: LI-COR, INC.
    Inventor: Han-Wei Wang
  • Patent number: 10379234
    Abstract: A gamma-ray analysis system is described for analyzing gamma-ray emitting radionuclides. The gamma-ray analysis system includes an analytical apparatus having a gamma-ray detector in operative communication with a modular and scalable shield assembly that encases a sample container having a sample to be tested. The detector communicates data to an electronic interface device that converts the data from an analog format to a digital format before a controller transmits the data to a central laboratory for further data processing, analysis and conclusion by qualified laboratory analysts. The controller runs an application software package on a graphic user interface that allows simple steps for conducting testing and data acquisition by the end user, while permitting real time data transmission between the field site and the central location. Functions were implemented for ensuring laboratory quality results while removing knowledge and experience requirements of an end user.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 13, 2019
    Assignees: THE UNITED STATES OF AMERICA, as represented by the Secretary, Department of Health and Human Services, Mirion Technologies, Inc., Mirion Technologies (Canberra UK) Limited
    Inventors: Cong Wei, Kelly M. Garnick, Thomas A. Scott, Elon M. Malkin, Jennifer T. Szymanski, Steve Laskos, James Cocks, Jeffrey Raimondi, Richard Mowry, Hiram Gonzalez, Ronald White, Wilhelm Mueller, Robert Fournier