With Optics Patents (Class 250/368)
  • Patent number: 10347687
    Abstract: An aim of the present invention is to improve the conversion efficiency of scintillation light into electric charge by a photoelectric conversion element in an imaging panel of an X-ray imaging system using an indirection conversion scheme. An imaging panel generates images based on scintillation light acquired from X-rays that have passed through a specimen. The imaging panel includes a substrate, thin film transistor, photoelectric conversion element, and reflective layer. The thin film transistor is formed on the substrate. The photoelectric conversion element is connected to the thin film transistor and converts incident scintillation light into electric charge. The entirety of a region of a light-receiving surface of the photoelectric conversion element where the scintillation light is incident overlaps the reflective layer as seen from the incident direction of the scintillation light. The reflective layer may be the drain electrode.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: July 9, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shigeyasu Mori, Kazuhide Tomiyasu
  • Patent number: 10236155
    Abstract: An electron detector assembly configured for detecting electrons emitted from a sample irradiated by an electron beam, comprising a scintillator including a scintillator layer, the scintillator layer emitting light signals corresponding to impingement of electrons thereupon, a light guide plate coupled to the scintillator layer and comprising a peripheral surface, and a single or plurality of silicon photomultiplier devices positioned upon the peripheral surface and arranged perpendicularly or obliquely relative to the scintillating surface, the silicon photomultiplier device being configured to yield an electrical signal from an electron impinging upon the scintillator layer.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: March 19, 2019
    Assignee: EL-MUL TECHNOLOGIES LTD.
    Inventors: Eli Cheifetz, Amit Weingarten, Semyon Shofman, Silviu Reinhorn
  • Patent number: 10208246
    Abstract: An additive containing an ion as a luminescence center is added to alkali halide powder as a base material. Mechanical energy for applying an impact force, a shearing force, a shear stress, or a friction force is applied so as to grind or mix the alkali halide powder and the additive. The ion as the luminescence center is doped into the alkali halide as the base material so as to obtain alkali halide-based scintillator powder. With this process, the alkali halide-based scintillator powder can be manufactured at a room temperature in the atmospheric air without any complicated condition control or any process at a high temperature under high vacuum and a large-sized scintillator sheet can be produced.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: February 19, 2019
    Assignees: OSAKA PREFECTURE UNIVERSITY Public Corporation, YASU MEDICAL IMAGING TECHNOLOGY CO., LTD.
    Inventors: Taketoshi Kawai, Fumiaki Kunimoto
  • Patent number: 10197511
    Abstract: An X-ray computer tomography (CT) apparatus according to an embodiment includes an X-ray source, an X-ray detector, and generating circuitry. The X-ray source radiates X-rays. The X-ray detector includes a scintillator including a first region close to the X-ray source and a second region distant from the X-ray source, an optical sensor that detects scintillator light obtained by converting the X-rays radiated from the X-ray source with the scintillator, and a variable layer that is provided in the scintillator and switchable between a first state in which the variable layer transmits the scintillator light between the first region and the second region and a second state in which the variable layer does not transmit the scintillator light between the first region and the second region. The generating circuitry generates a CT image based on a signal output from the X-ray detector.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: February 5, 2019
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Tooru Kato, Hiroaki Nakai, Mikihito Hayashi
  • Patent number: 10185041
    Abstract: The radiation detector (10) comprises a scintillator (15) having a first refractive index (ns) for converting incident radiation (RR) received at a first side (S1) of the radiation detector (10) into converted radiation (CR), a photosensor (20) for receiving the converted radiation (CR) from the scintillator (15), and an optical coating layer (25) arranged between the scintillator (15) and the photosensor (20). The scintillator (15) has regions (RR) arranged for being imaged, when impinged by the incident radiation (RR), onto corresponding regions of the photosensor (20). The optical coating layer (25) has a second refractive index (no) lower than the first refractive index (ns) for reflecting the converted radiation (CR) resulting from the incident radiation (RR) impinged on a particular region (A1) of the scintillator (15) and received by a region (A3) of the optical coating layer (25) corresponding to a photosensor region different from the imaged one (A2).
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: January 22, 2019
    Assignee: Teledyne Dalsa B.V.
    Inventor: Alexander Zyazin
  • Patent number: 10128163
    Abstract: A chip part includes a substrate that has an upper surface, a lower surface positioned on an opposite side of the upper surface, and a sidewall by which the upper surface and the lower surface are connected together and that has a plurality of concavo-convex portions formed on the sidewall from a side of the upper surface toward a side of the lower surface, a functional element formed at the side of the upper surface of the substrate, a first external electrode and a second external electrode that are arranged at the upper surface of the substrate so as to be electrically connected to the functional element, and a sidewall insulating film with which the sidewall of the substrate is coated so as to fill the plurality of concavo-convex portions formed on the sidewall of the substrate with the sidewall insulating film.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: November 13, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Hiroshi Tamagawa, Yasuhiro Kondo
  • Patent number: 10113110
    Abstract: Described herein is a boron-loaded liquid scintillator composition comprising a scintillation solvent including at least one linear alkylbenzene (LAB), diisopropyl naphthalene (DIN) or phenylxylyl ethane (PXE), or a combination of one or more thereof; at least one boron-containing material; one or more fluors, such as 2,5-diphenyloxazole (PPO), and optionally one or more wavelength shifters, such as 1,4-bis[2-methylstyryl]benzene (bis-MSB). The boron-containing material may comprise a carborane, such as o-carborane, especially those enriched in Boron-10. Methods of preparation of the liquid scintillator composition are also described, as well as concentrates thereof.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: October 30, 2018
    Assignee: ATOMIC ENERGY OF CANADA LIMITED
    Inventors: Xiongxin Dai, Bhaskar Sur, Ghaouti Bentoumi, Liqian Li, Guy Jonkmans
  • Patent number: 10096391
    Abstract: Gamma-ray sensing probes operating under the Cerenkov effect measure the burnup of spent nuclear fuel assemblies. The probes include an optical fiber that reacts to gamma rays coming from the spent nuclear fuel assembly and emit light via the Cerenkov effect. A scatterer surrounds the optical fiber to increase the light emitting efficiency of the optical fiber by the Compton electron scattering. A collimator composed of shielding material surrounds the scatterer. The collimator has a slit groove which is open in one direction for directing the gamma rays from the spent fuel assembly to the scatterer.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: October 9, 2018
    Assignee: SOONCHUNHYANG UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Byung Gi Park, Bong Soo Lee, Kyoung Won Jang, Wook Jae Yoo, Sang Hun Shin
  • Patent number: 10094937
    Abstract: In a radiation detector, an output extraction portion includes a first resistor chain, a first light detection portion of each of a plurality of radiation detection units being connected to the first resistor chain, and a second resistor chain, a second light detection portion of each of the plurality of radiation detection units being connected to the second resistor chain.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 9, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Hiroshi Uchida
  • Patent number: 10036815
    Abstract: In this radiation detector, a scintillator block (3) and a light guide (5) are optically coupled such that surfaces of side peripheral portions (25) face surfaces of scintillator crystals, among scintillator crystals configuring the scintillator block (3), which are positioned at side edge portions. Accordingly, scintillator light generated at the side edge portions of the scintillator block (3) becomes incident on the side peripheral portions (25) more reliably. As a result, a radiation detector (1) according to the present invention is capable of achieving high resolution in DOI detection. Furthermore, resin curing is used to integrally form the side peripheral portions (25) comprising a plurality of blocks, and thus a complex assembly step during production of the light guide (5) does not need to be performed. Accordingly, production of the light guide (5) is facilitated, and thus low production costs of the radiation detector according to the present invention can be achieved.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: July 31, 2018
    Assignee: Shimadzu Corporation
    Inventors: Hiromichi Tonami, Tomoaki Tsuda
  • Patent number: 9974498
    Abstract: Apparatus for radiography is disclosed, which includes a flat panel scintillator having a first surface for being exposed to radiation and a second surface for emitting visible light in response, and an associated imaging system. The imaging system includes a plurality of scanning MEM mirrors, each associated with a respective sub-region of the scintillator second surface, each scanning MEM mirror being mounted and controlled so as to re-direct light from along a predetermined scan path within the respective sub-region towards a respective optical channel. A photodetector is associated with each scanning MEM mirror and optical channel for receiving the re-directed light and generating an electrical signal representing light intensity. A processor receives the electrical signal from each photodetector and the corresponding position of each scanning MEM mirror to generate therefrom a reconstructed two-dimensional image.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: May 22, 2018
    Assignee: ORIGINAL DESIGN SERVICES LIMITED
    Inventor: Malcolm Humphrey
  • Patent number: 9952336
    Abstract: A radiation detector can include a scintillator having opposing end surfaces and a plurality of discrete photosensors disposed on an end surface of the scintillator. In an embodiment, the photosensors are disposed at the corners or along the peripheral edge of the end surface, as opposed to being disposed at the center of the end surface. In an embodiment, the plurality of discrete photosensors may cover at most 80% of a surface area of the end surface of the scintillator and may not cover a center of the end surface of the scintillator. In a further embodiment, an aspect ratio of the monolithic scintillator can be selected to improve energy resolution.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: April 24, 2018
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Kan Yang, Peter R. Menge
  • Patent number: 9929201
    Abstract: An image pickup apparatus is configured with an image pickup device on which a plurality of bumps are arranged in line on an outer circumferential portion of a light receiving surface; and a flexible wiring board including a plurality of inner leads each of which is configured with a distal end portion, a bending portion and a rear end portion, the distal end portion being compression-bonded to a bump, and the rear end portion being arranged parallel to a side face of the image pickup device with the bending portion interposed between the distal end portion and the rear end portion. A height of a light receiving portion side of the bumps is lower than a height of a side face side; and each of the inner leads is plastically transformed according to a shape of a top face of the bumps.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: March 27, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Jumpei Yoneyama, Takahiro Shimohata
  • Patent number: 9918656
    Abstract: An implantable magnetic relaxation sensor is provided that comprises superparamagnetic nanoparticies functionalized with one or more agents that bond with a biomarker of interest. The sensor is configured for minimally-invasive implantation into a human or animal, and is configured to indicate the implanted sensor's cumulative exposure to the biomarker of interest by analysis using magnetic resonance relaxometry.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: March 20, 2018
    Assignees: Massachusetts Institute of Technology, The General Hospital Corporation
    Inventors: Michael J. Cima, Paul Huang, Yibo Ling, Terrence Pong, Christophoros C. Vassiliou
  • Patent number: 9864070
    Abstract: The invention relates to X-ray imaging devices, particularly to devices for X-ray mammography and tomosynthesis. The scintillation detector comprises at least one photosensor with an array of cells each of thereof has a photosensitive area, and a scintillator arranged in the form of a structured aggregate made of elements isolated from each other and placed on the surface of the photosensor. The new construction of the proposed scintillation detector is the completely eliminated need for precise alignment of the structured scintillator based on the elements with a matrix of cells of a photosensor. Precise arrangement of the scintillation elements and the matrix of cells of a photosensor is performed directly during the formation of the scintillation elements. The technical result achieved by using the invention is the increase of image contrast.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: January 9, 2018
    Assignee: “STC-MT” LLC
    Inventors: Dmitriy Aleksandrovich Suponnikov, Andrey Nikolaevich Putilin, Anatoly Rudolfovich Dabagov
  • Patent number: 9848774
    Abstract: Methods, devices and a system for disease management are provided that employ diagnostic testing devices (e.g., blood glucose meters) and medication delivery devices (e.g., insulin delivery devices) for providing data to a repository in real-time and automatically. Repository data can be analyzed to determine such information as actual test strip use, patient health parameters to outside prescribed ranges, testing and medication delivery compliance, patient profiles or stakeholders to receive promotional items or incentives, and so on. Connected meters and medication delivery devices and repository data analysis are also employed to associate a diagnostic test to a mealtime based on timing of a therapeutic intervention performed by an individual.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 26, 2017
    Assignee: Becton, Dickinson and Company
    Inventors: Chris Bergstrom, Jay Butterbrodt, Alan W. Fiedler, Barry Ginsberg, Tim H. Gordon, Paul Upham
  • Patent number: 9851458
    Abstract: A wearable neutron detector is disclosed that includes a body attachment portion that is configured to be secured to a portion of a human body. The wearable detector includes a scintillator having a plurality of wavelength optical shifting fibers. One or more light converters are connected with the wavelength optical shifting fibers. A detection circuit is connected with the light converters configured to detect a neutron event. A control unit is connected with the detection circuit. An annunciator is connected with the control unit for generating an enunciation of the neutron event. The electronic components are housed within the body attachment portion.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: December 26, 2017
    Assignee: PartTec LTD
    Inventor: Herschel E Workman
  • Patent number: 9846245
    Abstract: A radiographic image capturing apparatus includes: a pixel array in which a plurality of pixels outputting an electrical signal corresponding to radiation are arranged; a readout circuit section; and a member for preventing radiation from entering the readout circuit section. The pixel array includes a first region in which some pixels used for generating image signals are arranged, and a second region in which other pixels not used for generating the image signals are arranged in at least part of a region around the first region. From an outer side toward an inner side of the pixel array, an end on the inner side of the readout circuit section disposed in the second region, an end on the inner side of an orthogonal projection of the member to the pixel array, and an end on the inner side of the second region are arranged in this order.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: December 19, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuro Takenaka, Toshio Kameshima, Tomoyuki Yagi, Atsushi Iwashita, Eriko Sato, Hideyuki Okada, Takuya Ryu, Kosuke Terui, Takashi Takasaki
  • Patent number: 9768414
    Abstract: A display device is provided. The display device includes a first substrate, a first barrier layer disposed on the first substrate, a second substrate, a second barrier layer disposed on the second substrate, an display medium disposed between the first barrier layer and the second barrier layer, and a metal enclosing wall connecting the first substrate to the second substrate and surrounding the display medium. The metal enclosing wall includes a first metal layer having a first opening and connected to the first substrate, a second metal layer connected to the second substrate, and a third metal layer formed between the first metal layer and the second metal layer.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 19, 2017
    Assignee: INNOLUX CORPORATION
    Inventors: Chi-Che Tsai, Po-Ching Lin, Wei-Yen Wu, Hui-Chen Hsu
  • Patent number: 9618631
    Abstract: A novel method of making a crystal block array (configured for coupling with photodetectors as part of an integrated detector module useful in advanced PET scanner systems) is disclosed herein. The novel method comprises a series of cutting, polishing, and assembling steps that utilize reflective sheet material. The crystal block arrays disclosed herein may be of various dimensions and geometries and are amenable to mass production.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: April 11, 2017
    Assignee: ZECOTEK IMAGING SYSTEMS SINGAPORE PTE LTD.
    Inventors: Abdelmounaime Faouzi Zerrouk, Azman Mohd Ariffin, Mohammad Naim bin Mohammad Hakim
  • Patent number: 9606242
    Abstract: According to one aspect, a planar and volumetric dosimeter for use with a radiotherapy machine having a radiation source. The dosimeter includes a scintillating assembly including a plurality of scintillating optical fibers and configured to generate a light output in response to incident dose distribution thereon from the radiation source, and a photo-detector operable to convert optical energy emitted by the scintillating assembly to electrical signals for determining actual two-dimensional (2D) or three-dimensional (3D) dose distribution incident on the scintillating assembly using a tomographic reconstruction algorithm.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: March 28, 2017
    Inventors: Luc Beaulieu, Luc Gingras, Mathieu Goulet, Louis Archambault
  • Patent number: 9575192
    Abstract: A PET scanning system includes a plurality of detector modules, each having an array of pixelated scintillators, the array having N rows of pixelated scintillators, and M columns of pixelated scintillators. Each detector module includes a first set of N light guides optically coupled to the top surface that accumulate optical signals, and a second set of M light guides optically coupled to the bottom surface that accumulate optical signals. Each light guide is coupled to a light sensor which converts optical signals into analog electrical outputs. A processor is coupled to outputs from the first set and the second set, the processor configured to determine which pixelated scintillator within the array had a gamma ray interact therewith, and its depth of interaction, based on the outputs. Thus, gamma ray detection in an array of M×N scintillator pixels is accomplished using only M+N channels.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: February 21, 2017
    Assignee: FMI Medical Systems Co., Ltd.
    Inventors: Johnny S. Ng, Piyush J. Shah, Xiaoxu Niu
  • Patent number: 9564253
    Abstract: The present invention provides a scintillator panel which is provided with a narrow-width barrier rib with high accuracy in a large area, and also has high luminous efficiency and realizes clear image quality. The present invention provides a scintillator panel including a sheet-like substrate, a barrier rib provided on the substrate, and a scintillator layer made of a phosphor filled in cells divided by the barrier rib, wherein a reflecting layer is formed on only one side of the barrier rib.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: February 7, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Masaki Okamura, Hiroshi Enomoto, Yuichiro Iguchi
  • Patent number: 9557490
    Abstract: This document discusses, among other things, a connector for an optical imaging probe that includes one or more optical fibers communicating light along the catheter. The device may use multiple sections for simpler manufacturing and ease of assembly during a medical procedure. Light energy to and from a distal minimally-invasive portion of the probe is coupled by the connector to external diagnostic or analytical instrumentation through an external instrumentation lead. Certain examples provide a self-aligning two-section optical catheter with beveled ends, which is formed by separating an optical cable assembly. Techniques for improving light coupling include using a lens between instrumentation lead and probe portions. Techniques for improving the mechanical alignment of a multi-optical fiber catheter include using a stop or a guide.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 31, 2017
    Assignee: Vascular Imaging Corporation
    Inventors: Michael J. Eberle, Kenneth N. Bates, William W. Morey
  • Patent number: 9513381
    Abstract: In a scintillator panel, a glass substrate with the thickness of not more than 150 ?m serves as a support body, thereby achieving excellent radiotransparency and flexibility and also relieving a problem of thermal expansion coefficient. Furthermore, in this scintillator panel, an organic resin layer is formed so as to cover a one face side and a side face side of the glass substrate. This reinforces the glass substrate, whereby the edge part thereof can be prevented from chipping or cracking. Furthermore, stray light can be prevented from entering the side face of the glass substrate, while transparency is ensured for light incident to the other face side of the glass substrate because the organic resin layer is not formed on the other face side of the glass substrate.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: December 6, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Hidenori Jonishi, Munenori Shikida, Yutaka Kusuyama
  • Patent number: 9466456
    Abstract: An x-ray tube for generating a sweeping x-ray beam. A cathode is disposed within a vacuum enclosure and emits a beam of electrons attracted toward a rotating anode. The rotating anode is adapted for rotation with respect to the vacuum enclosure about an axis of rotation. At least one collimator opening or aperture corotates with the rotating anode within the vacuum enclosure, such that a swept x-ray beam is emitted.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 11, 2016
    Assignee: American Science and Engineering, Inc.
    Inventors: Martin Rommel, Peter Rothschild
  • Patent number: 9442199
    Abstract: The invention disclosed herein relates to a scintillation detector for registering the position of gamma photon interactions, an comprises an array of two or more elongated first and second scintillation crystal elements connected together along their respective long sides, and an array of discrete photosensitive areas disposed on a common substrate of a solid-state semiconductor photo-detector. The array of first and second scintillation crystal elements have proximal output windows optically coupled to the array of discrete photosensitive areas in a one-to-one relationship. The invention may be characterized in that the first and second scintillation crystal elements include a rooftop portion at their distal ends, wherein the rooftop portion optically couples one of the first and second scintillation crystal elements to the other and is configured to reflect and transmit light resulting from a gamma photon interaction from one of the first and second scintillation crystal elements to the other.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: September 13, 2016
    Inventors: Alexei Oleinik, Alexander Zagumennyi, Serge Khorev, Abdelmounaime Faouzi Zerrouk
  • Patent number: 9423510
    Abstract: A radiation detector for a radiation imaging system, wherein the detector comprises photosensors, arranged to receive light emitted from an array of scintillator elements. The scintillator elements absorb radiation, such as gamma rays, and emit light. Using Anger arithmetic and crystal decoding, the position of each scintillation event is determined from the relative fractions of light detected by each of the photosensors. Selectively shaping the top surface, i.e., the surface closest to the photosensors, of each scintillator element in the array, the direction of light emission from each scintillator element can be optimized such that the fraction of light detected by each photosensor is optimally distinct for each position in the array of scintillator elements. The top surface of at least one of the scintillator element array is not parallel with the bottom surface of at least one of the scintillator.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: August 23, 2016
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Jerry Yanqi Wang, Kent C. Burr
  • Patent number: 9395451
    Abstract: An apparatus can include a light emitting device and a light sensing device optically coupled to the light emitting device via a first layer and a second layer. In an embodiment, the first layer can have a first thickness and a first index of refraction with a value greater than 0 and the second layer can have a second thickness and a second index of refraction with a value less than 0. In a particular embodiment, the light emitting device can include a scintillator and the light sensing device can include a photosensor.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: July 19, 2016
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventor: Peter R. Menge
  • Patent number: 9360571
    Abstract: A system and method for correcting vignetting distortion in an imaging sensor of a multi-camera flat panel X-Ray detector. A scintillator converts X-Ray radiation generated by an X-Ray source into detectable radiation. A displacement unit generates, during a calibration phase, relative displacement between the X-Ray detector and an X-Ray source at a plane parallel to the scintillator. The imaging sensor acquires, during the calibration phase, a first and a second partial images, the first partial image is acquired before the relative displacement is generated, and the second partial image is acquired after the relative displacement is generated. A relative displacement measurement unit measures the relative displacement. Coefficients of a preliminary inverse vignetting function are calculated based on differences between corresponding pixels of the two partial images.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: June 7, 2016
    Assignee: GENERIC IMAGING LTD.
    Inventors: Eduard Batkilin, Irina Karelin, Alex Feldman
  • Patent number: 9307230
    Abstract: Optical characteristics of an optical component for a high volume manufacture consumer electronics device can be tested using a test chart composed of a superposition of two or more groups of parallel line pairs, wherein all the groups of parallel line pairs are oriented at a different inclination. The groups of line pairs could be oriented so that they are perpendicular to each other. A test system can quickly and objectively assess for example the sharpness of the optical component in different directions across a full image field of view of an imaging system that is capturing a digital image of the chart using the optical component for through-the-lens imaging. Other embodiments are also described and claimed.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: April 5, 2016
    Assignee: Apple Inc.
    Inventors: Fei Wu, Mark N. Gamadia, Shizhe Shen
  • Patent number: 9268038
    Abstract: A radiation detector includes a scintillator layer configured to absorb radiation emitted from a radiation source and to emit optical photons in response to the absorbed radiation. The radiation detector also includes a photodetector layer configured to absorb the optical photons emitted by the scintillator layer. The radiation detector further includes a reflector configured to reflect the optical photons emitted by the scintillator layer towards the photodetector layer and to absorb select wavelengths of optical photons associated with an afterglow emitted by the scintillator layer.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: February 23, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: David Michael Hoffman
  • Patent number: 9200957
    Abstract: A sensor for measuring ultraviolet radiation and mount for retaining the sensor includes a converter plate having a perimeter and an edge about the perimeter, a retainer comprising a conical mirror and a frame having a UV blocker, and a fluorescent radiation detector coupled to the frame. The converter plate fluoresces in response to UV radiation incident on the converter plate. The conical mirror couples with the converter plate and directs a portion of the fluorescent radiation emitted from the edge of the plate to the detector coupled to the frame. The detector detects the fluorescent radiation from the converter plate and produces an electrical signal proportional to the magnitude of fluorescent radiation.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: December 1, 2015
    Assignee: AMO Development, LLC
    Inventor: Ihor V Berezhnyy
  • Patent number: 9182502
    Abstract: Provided is an analysis apparatus for a high energy particle and an analysis method for a high energy particle. The analysis apparatus for the high energy particle includes a scintillator generating photons with each unique wavelength by the impinging with a plurality of kinds of accelerated high energy particles, a parallel beam converting unit making the photons proceed in parallel to one another, a diffraction grating panel making the photons proceeding in parallel to one another enter at a certain angle, and refracting the photons at different angles depending on each unique wavelength, and a plurality of sensing units arranged on positions where the photons refracted at different angles from the diffraction grating panel reach in a state of being spatially separated, and detecting each of the photons.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: November 10, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Moon Youn Jung, Nam Soo Myung, Dong-Ho Shin, Hwang Woon Lee, Dong Hoon Song, Seunghwan Kim
  • Patent number: 9182503
    Abstract: The disclosure relates to a scintillation pixel array, a radiation sensing apparatus, a scintillation apparatus, and methods of making a scintillation pixel array wherein scintillation pixels have beveled surfaces and a reflective material around the beveled surfaces. The embodiments described herein can reduce the amount of cross-talk between adjacent scintillation pixels.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: November 10, 2015
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventor: Peter R. Menge
  • Patent number: 9121950
    Abstract: An imaging detector (214) includes a scintillator array (216) including a scintillator element (228) and a material (230) and a photosensor array (218) including a detector element (222) having a light sensitive region (224) and a non-sensitive region (226). The light sensitive region is separated from the scintillator element by a gap, the light sensitive region is in one-to-one mechanical alignment with the scintillator element, and the non-sensitive region is in mechanical alignment with the material. The detector further includes structure (234) that includes one or more material free channels. The structure is located between the non-sensitive region and the material and not between the light sensitive region and the scintillator element. An optical adhesive (232) is located in the gap, filling the entire gap, and mechanically and optically coupling the light sensitive region and the scintillator element.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: September 1, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Randall Peter Luhta, Marc Anthony Chappo, Brian E. Harwood, Rodney Arnold Mattson
  • Patent number: 9075151
    Abstract: A detector unit for a detector array includes a photo sensor array, a light guide, and a plurality of scintillator elements formed unitarily with the light guide, the scintillator elements configured to emit absorbed energy in the form of light, the light guide being configured to transmit the light received from at least one of the scintillator elements to a photo sensor, the light guide and the plurality of scintillators being formed from the same material, an area covered by the photo sensors being smaller than an area covered by the scintillator elements and a number of photo sensors being less than a number of scintillator elements. A detector array and a method of manufacturing a detector array are also described herein.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 7, 2015
    Assignee: General Electric Company
    Inventors: Timothy Patrick Rose, David McDaniel, Leonid Romanov
  • Patent number: 9040928
    Abstract: A detector for detecting ionizing radiation comprises a scintillator 10 selected to emit light in response to incidence thereon of radiation to be detected, at least one detector 16 for detecting said emitted light, and at least one optical waveguide 12 for transmitting said emitted light to said detector 16. The optical waveguide typically comprises a flexible solid or hollow fiber that can be incorporated into a flexible mat or into a fiber-reinforced structure, so that the detector is integrated therewith.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: May 26, 2015
    Assignee: BAE SYSTEMS plc
    Inventors: Michael Dunleavy, Sajad Haq, Douglas Beverley Stevenson King, Nicholas Robert Giacomo Colosimo, Jonathan Alexander Silvie, Philip Lawrence Webberley
  • Patent number: 9029790
    Abstract: In imaging on the basis of list mode data of a list of radioactive count data detected by a nuclear medicine imaging apparatus for measuring radiation in a pulse mode, the processing from the measurement to imaging of radiation is accelerated substantially to the real time level by selecting the number of count data to be used for online imaging computations on the basis of the counting rate of radiation.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: May 12, 2015
    Assignee: National Institute of Radiological Sciences
    Inventors: Taiga Yamaya, Eiji Yoshida
  • Patent number: 9024266
    Abstract: A radiation detection system can include optical fibers and a material disposed between the optical fibers. In an embodiment, the material can include a fluid, such as a gas, a liquid, or a non-Newtonian fluid. In another embodiment, the material can include an optical coupling material. In a particular embodiment, the optical coupling material can include a silicone rubber. In still another embodiment, the optical coupling material has a refractive index less than 1.50. In still another embodiment, the radiation detection system can have a greater signal:noise ratio, a light collection efficiency, or both as compared to a conventional radiation detection system. Corresponding methods of use are disclosed that can provide better discrimination between neutrons and gamma radiation.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: May 5, 2015
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Peter R. Menge
  • Patent number: 9018588
    Abstract: A radiation detection apparatus can have optical coupling material capable of absorbing wavelengths of light within approximately 75 nm of a wavelength of scintillating light of a scintillation member of the radiation detection apparatus. In an embodiment, the optical coupling material can be disposed between a photosensor of the radiation detection apparatus and the scintillation member. In a particular embodiment, the composition of the optical coupling material can include a dye. In an illustrative embodiment, the dye can have a corresponding a* coordinate, a corresponding b* coordinate, and an L* coordinate greater than 0. In another embodiment, the optical coupling material can be disposed along substantially all of a side of the photosensor.
    Type: Grant
    Filed: December 15, 2012
    Date of Patent: April 28, 2015
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Peter R. Menge
  • Patent number: 9006668
    Abstract: A method to improve light extraction from scintillators in a gamma ray detector, the method including forming a roughened layer on a light-emitting surface of the scintillators, the roughened thin layer having a pillar/column or a corn-shaped structure.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: April 14, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Jerry Wang, Gin Chung Wang, Huini Du
  • Publication number: 20150098549
    Abstract: Apparatus for radiography is disclosed, which includes a scintillator having a first surface for being exposed to radiation and a second surface for emitting visible light in response, and an associated imaging system. The imaging system includes a plurality of scanning mirrors, each associated with a respective sub-region of the scintillator second surface, each scanning mirror being mounted and controlled so as to re-direct light from along a predetermined scan path within the respective sub-region towards a respective optical channel. A photodetector is associated with each scanning mirror and optical channel for receiving the re-directed light and generating an electrical signal representing light intensity. A processor receives the electrical signal from each photodetector and the corresponding position of each mirror to generate therefrom a reconstructed two-dimensional image.
    Type: Application
    Filed: May 8, 2013
    Publication date: April 9, 2015
    Inventor: Malcolm Humphrey
  • Patent number: 9000383
    Abstract: A digital image detector and a digital image detecting method using gratings are provided. The digital image detector includes a fluorescent screen that receives X-rays passing through an object, converts the received X-rays into rays and outputs the converted rays, a first reflecting plane that reduces an image based on the rays output from the fluorescent screen in a first axis direction using a grating, a second reflecting plane that reduces the image reduced by the first reflecting plane in a second axis direction using a grating, and an imaging device that receives the image reflected and output from the second reflecting plane, focuses the received image, and converts the focused image into an electrical signal.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: April 7, 2015
    Inventor: Dong June Seen
  • Publication number: 20150090889
    Abstract: A radiation detection apparatus includes a selecting unit that allows a light having a light emission wavelength and a polarization direction to pass thorough the selecting unit, an optical system that forms an image of the light, a photon detecting unit that observes the image formed by the optical system, and detects the photon in whole range of the image, a counting unit that calculates the number of the alpha ray based on a result of counting the photon derived from the light emission of gas excited by the alpha ray, and is possible to sufficiently eliminate background light (noise light) even if background light is strong, and therefore observe weak light emission.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hidehiko KURODA, Kunihiko NAKAYAMA, Kei TAKAKURA, Mikio IZUMI, Naoto KUME
  • Patent number: 8993973
    Abstract: In a lattice-like pixel structure in which reflecting plates that reflect a fluorescent light from a fluorescent material-based neutron detecting sheet are arranged along vertical and horizontal axes at a regular interval, a lattice-like fluorescent light detecting member is provided, in which grooves may be formed at an upper half position of the vertical axis direction reflecting plate and at a center position in a vertical axis interval for accommodating a wavelength shifting fiber for vertical axis detection and at a lower half position of the horizontal axis direction reflecting plate and at a center position in a horizontal axis interval for accommodating a wavelength shifting fiber for horizontal axis detection; and a fluorescent material-based neutron detecting sheet is arranged only at a front surface or at both of a front surface and a back surface of the lattice-like fluorescent light detecting member.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: March 31, 2015
    Assignees: Japan Atomic Energy Agency, Chichibu Fuji Co., Ltd.
    Inventors: Tatsuya Nakamura, Masaki Katagiri, Noriaki Tsutsui
  • Patent number: 8993972
    Abstract: A fluorescence based sensor system that provides improved signal-to-noise over prior systems is provided. The system includes a fluorescence based sensing medium that is contained a recessed cavity with reflective sides that allow for more uniform excitation of the fluorescence based sensing medium by the excitation light.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: March 31, 2015
    Assignee: University of Maryland Baltimore County
    Inventors: Govind Rao, Hung Lam, Yordan Kostov, Leah Tolosa, Xudong Ge
  • Publication number: 20150083911
    Abstract: An electron-detector comprises a scintillator plate 207, electron optics 204 for directing a plurality of electron beams 9 onto the scintillator plate so that the electron beams are incident onto the scintillator plate at locations of incidence disposed at a distance from each other, a light detector 237 comprising a plurality of light receiving areas 235 disposed at a distance from each other, and light optics for generating a first light-optical image of at least a portion of the scintillator plate at a region 243 where the light receiving areas of the light detector are disposed so that, by the imaging, each of the locations of incidence is associated with a light receiving area; and wherein the electron optics comprise an electron beam deflector 255 for displacing the locations of incidence of the electron beams on the scintillator plate in a direction orthogonal to a normal 249 of a surface 208 of the scintillator plate.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 26, 2015
    Inventors: Dirk Zeidler, Jörg Jacobi
  • Publication number: 20150078520
    Abstract: A miniature, portable x-ray system may be configured to scan images stored on a phosphor. A flash circuit may be configured to project red light onto a phosphor and receive blue light from the phosphor. A digital monochrome camera may be configured to receive the blue light to capture an article near the phosphor.
    Type: Application
    Filed: April 22, 2014
    Publication date: March 19, 2015
    Applicant: Los Alamos National Security, LLC
    Inventors: Scott A. Watson, Evan A. Rose
  • Patent number: 8973245
    Abstract: Disclosed is a method of manufacturing a flat panel detector such that the surface on the side of a fluorescent body layer of a scintillator panel which has the fluorescent body layer comprising a column crystal on the supporting body, is coupled to the planar light receiving element surface of a light-receiving element, comprising: a step of manufacturing the scintillator panel which has a larger area than that of the planar light receiving element surface; a step of trimming the edges of the scintillator panel, obtained by the step of manufacturing the scintillator panel, to correspond to the area of the planar light receiving element surface; and a step of coupling the edge-trimmed scintillator panel to the planar light receiving element surface, thus providing a flat panel detector which has an excellent productivity and that can be made small in size without non-image area.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: March 10, 2015
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Takehiko Shoji, Keiko Itaya, Masashi Kondo, Makoto Iijima