Photosensitive Patents (Class 313/523)
  • Patent number: 11081745
    Abstract: A metal air battery includes: cells, each of which includes a positive electrode, an negative electrode, and an electrolyte layer located between the positive electrode and the negative electrode; and a magnetic field generator configured to form a magnetic field in the cells. The magnetic field generator comprises a permanent magnet attached to one of the positive electrode and the negative electrode.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 3, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jin Soo Kim, Jong Chan Song
  • Patent number: 11043350
    Abstract: The invention discloses a photocathode comprising an amorphous substrate such as a glass substrate (110) presenting an input face that will receive incident photons and a back face opposite the front face. Nanowires (120) made from at least one III-V semiconducting material are deposited on the back face of the substrate and extend from this face in a direction away from the front face. The invention also relates to a method for manufacturing such a photocathode by MBE.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: June 22, 2021
    Assignees: PHOTONIS FRANCE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Claude Alibert, Moustapha Conde, Jean-Christophe Harmand, Théo Jegorel
  • Patent number: 10636929
    Abstract: An avalanche photodiode detector is provided with a substrate including an array of avalanche photodiodes. An optical interface surface of the substrate is arranged for accepting external input radiation. There is provided at least one cross-talk blocking layer of material including apertures positioned to allow external input radiation to reach photodiodes and including material regions positioned for attenuating radiation in the substrate that is produced by photodiodes in the array. Alternatively at least one cross-talk blocking layer of material is disposed on the optical interface surface of the substrate to allow external input radiation to reach photodiodes and attenuate radiation in the substrate that is produced by photodiodes in the array. At least one cross-talk filter layer of material can be disposed in the substrate adjacent to the photodiode structures, including a material that absorbs radiation in the substrate that is produced by photodiodes in the array.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 28, 2020
    Assignee: Massachusetts Institute of Technology
    Inventors: K. Alexander McIntosh, David C. Chapman, Joseph P. Donnelly, Douglas C. Oakley, Antonio Napoleone, Erik K. Duerr, Simon Verghese, Richard D. Younger
  • Patent number: 9711673
    Abstract: A display device comprising at least: (a) a plurality of photovoltaic active areas and a plurality of holes, two neighboring photovoltaic active areas forming an opening; (b) one or more artificial light sources; (c) a plurality of light concentrators and reflective opaque disposed between said light sources and said photovoltaic active areas. This device wherein said hubs of light are arranged so that the light emitted from artificial light sources is directed by the light concentrators through the holes.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 18, 2017
    Assignee: SUNPARTNER TECHNOLOGIES
    Inventors: Badre Kerzabi, Cyril Chappaz, Alain Cenne, Sylvain De Vecchi
  • Patent number: 9489876
    Abstract: An inspection method including following steps is provided. A pixel array substrate including a plurality of pixel units is in contact with a photoelectric inspection device. A plurality of electrical signals is inputted to the pixel units of the pixel array substrate and the photoelectric inspection device. Based on an optical property of the photoelectric inspection device, the pixel units of the pixel array substrate are being examined on whether they are normal or not. Moreover, an inspection apparatus realizing the inspection method is also provided.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: November 8, 2016
    Assignee: E Ink Holdings Inc.
    Inventors: Chuan-Feng Liu, Jen-Shiun Huang, Pei-Lin Huang, Shi-Lin Li, Chen-Fa Tsai, Yung-Sheng Chang
  • Patent number: 9000434
    Abstract: A semiconductor device including a semiconductor substrate having a surface including an active semiconductor device including one of a laser and a photodiode; and a visual indicator disposed on the semiconductor body and at least adjacent to a portion of said active semiconductor device, the indicator having a state that shows if damage to the active semiconductor device may have occurred.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: April 7, 2015
    Assignee: Emcore Corporation
    Inventors: Richard Carson, Elaine Taylor, Douglas Collins
  • Patent number: 8816582
    Abstract: A photo cathode for use in a vacuum tube including a cathode layer, having an entrance face capable of absorbing photons impinging on the cathode layer, and an exit face for releasing electrons upon impinging of the photons, and an electron exit layer, in facing relationship with the exit face of the cathode layer for improving the releasing of the electrons, and a carbon containing layer, positioned between the exit face of the cathode layer and the electron exit layer, for bonding the electron exit layer to the cathode layer.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 26, 2014
    Assignee: Photonis France SAS
    Inventors: Gert Nützel, Pascal Lavoute, Christophe Fontaine, Richard Jackman
  • Patent number: 8710424
    Abstract: Embodiments of the present invention include an electron counter with a charge-coupled device (CCD) register configured to transfer electrons to a Geiger-mode avalanche diode (GM-AD) array operably coupled to the output of the CCD register. At high charge levels, a nondestructive amplifier senses the charge at the CCD register output to provide an analog indication of the charge. At low charge levels, noiseless charge splitters or meters divide the charge into single-electron packets, each of which is detected by a GM-AD that provides a digital output indicating whether an electron is present. Example electron counters are particularly well suited for counting photoelectrons generated by large-format, high-speed imaging arrays because they operate with high dynamic range and high sensitivity. As a result, they can be used to image scenes over a wide range of light levels.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: April 29, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: David C. Shaver, Bernard B. Kosicki, Robert K. Reich, Dennis D. Rathman, Daniel R. Schuette, Brian F. Aull
  • Patent number: 8681135
    Abstract: A photo sensor capable of reducing the distortion of signals output from the photo sensor to output a correct measured value and an organic light emitting display using the same. The organic light emitting display includes a pixel unit formed on a transparent substrate to display an image in response to scan signals and data signals, a scan driver generating the scan signals to transmit the scan signals to the pixel unit, a data driver generating the data signals to transmit the data signals to the pixel unit, and a photo sensor including a sensing unit sensing brightness of ambient light to output a sensing signal and a control unit for receiving the sensing signal to output a brightness control signal for controlling brightness of the image.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Sung Ahn, Do-Youb Kim, Sun-A Yang, Dong-Wook Choi, Joo-Hyeon Jeong
  • Patent number: 8507785
    Abstract: An electromagnetic energy collector and sensor use enhanced fields to emit electrons for energy collection. The collector and sensor collect energy from visible light, infrared radiation and ultraviolet electromagnetic radiation. The collector and sensor include a waveguide with a geometry selected to enhance the electric field along a conductor to create a high, localized electric field, which causes electron emission across a gap to a return plane.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: August 13, 2013
    Assignee: Pacific Integrated Energy, Inc.
    Inventor: Phillip J. Layton
  • Patent number: 8482197
    Abstract: When light is incident to an antenna layer AA6 of a photocathode AA1, light of a specific wavelength included in the incident light couples with surface plasmons in the antenna layer AA6 whereupon near-field light is outputted from a through hole AA14. The intensity of the output near-field light is proportional to and greater than the intensity of the light of the specific wavelength. The output near-field light has a wavelength that can be absorbed in a photoelectric conversion layer AA4. The photoelectric conversion layer AA4 receives the near-field light outputted from the through hole AA14. A region of the photoelectric conversion layer AA4 around the through hole AA14 absorbs the near-field light and generates photoelectrons (e?) in an amount according to the intensity of the near-field light. The photoelectrons (e?) generated in the photoelectric conversion layer AA4 are outputted to the outside.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 9, 2013
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Minoru Niigaki, Toru Hirohata, Hiroyasu Fujiwara, Akira Higuchi
  • Publication number: 20120248977
    Abstract: A light emitting device-light receiving device assembly includes: a mount substrate having first and second surfaces, and including a first base as a raised portion on the first surface; a light receiving device having first and second surfaces, the first surface of the light receiving device being anchored on the first base; and a light emitting device, the light receiving device including a light passage portion allowing for passage of light emitted by the light emitting device, the light emitted by the light emitting device emerging to outside through the light passage portion, the first base, and the mount substrate, the light receiving device receiving externally incident light through the mount substrate and the first base, the light receiving device including an annular second base as a raised portion on the second surface of the light receiving device, and the light emitting device being anchored on the second base.
    Type: Application
    Filed: March 2, 2012
    Publication date: October 4, 2012
    Applicant: SONY CORPORATION
    Inventor: Hiizu Ootorii
  • Publication number: 20120194068
    Abstract: A lamp includes a housing, a plate body disposed in the housing and having a wavelength-conversion material, a light-emitting module disposed in the housing and spaced apart from the plate body, and a light sensor disposed on the plate body. The light-emitting module includes a circuit board, and a plurality of light-emitting units disposed on the circuit board and emitting light onto the plate body. The light sensor is used for sensing the color temperature of light that is emitted from the light-emitting units and that propagates within the plate body.
    Type: Application
    Filed: August 9, 2011
    Publication date: August 2, 2012
    Applicants: LITE-ON TECHNOLOGY CORP., SILITEK ELECTRONIC (GUANGZHOU) CO., LTD.
    Inventors: SHUN-CHUNG CHENG, CHIH-HUANG WANG, CHANG-MING CHENG
  • Publication number: 20110199564
    Abstract: The present invention provides a display device substrate, a display device substrate manufacturing method, a display device, a liquid crystal display device, a liquid crystal display device manufacturing method and an organic electroluminescent display device that allow suppressing faults derived from occurrence of gas and/or bubbles in a pixel region. The present invention is a display device substrate that comprises: a photosensitive resin film; and a pixel electrode, in this order, from a side of an insulating substrate. The display device substrate has a gas-barrier insulating film, at a layer higher than the photosensitive resin film, for preventing advance of a gas generated from the photosensitive resin film, or has a gas-barrier insulating film, between the photosensitive resin film and the pixel electrode, for preventing advance of gas generated from the photosensitive resin film.
    Type: Application
    Filed: June 11, 2009
    Publication date: August 18, 2011
    Inventor: Hiroyuki Moriwaki
  • Patent number: 7763896
    Abstract: An exemplary LED includes a substrate, an LED chip, a light pervious encapsulation, and an auxiliary electric component. The substrate includes a first surface, an opposite second surface, and an accommodating space defined therein between the first surface and the second surface. The LED chip is mounted on the first surface of the substrate. The light pervious encapsulation is formed on the substrate and covers the LED chip. The auxiliary electric component is received in the accommodating space between the first and second surfaces of the substrate.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: July 27, 2010
    Assignee: Foxsemicon Integrated Technology, Inc.
    Inventors: Chun-Wei Wang, Hung-Kuang Hsu, Wen-Jang Jiang
  • Patent number: 7692384
    Abstract: An envelope has a glass bulb body and a cylindrical glass bulb base. The glass bulb body includes an upper hemisphere and a lower hemisphere. The upper hemisphere is curved in a substantially spherical shape. The lower hemisphere is substantially curved in a spherical shape and connects the upper hemisphere and glass bulb base. A photocathode is formed on the inner surface of the glass bulb body. An avalanche photodiode is disposed on the glass bulb body side relative to an intersection between an imaginary extended curved surface of the lower hemisphere within the glass bulb base and an axis. When light enters the photocathode, electrons are emitted from the photocathode. The electrons are converged at the position above and in the vicinity of the APD by an electrical field in the electron tube, so that the electrons enter the APD in an efficient manner and are detected satisfactorily.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: April 6, 2010
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Hiroyuki Kyushima, Motohiro Suyama, Suenori Kimura, Yasuharu Negi, Atsuhito Fukasawa, Yoshihiko Kawai, Atsushi Uchiyama, Yasuyuki Egawa
  • Patent number: 7667400
    Abstract: Back-illuminated silicon photomultipliers having a substrate of a first conductivity type having front and back sides, a matrix of regions of a second conductivity type in the substrate, a matrix of regions of the first conductivity type under the matrix of regions of the second conductivity type and adjacent the back side of the substrate, with the bottom of the matrix of regions of the second conductivity type forming a p/n junction with the substrate or a matrix of regions of the second conductivity type, the matrix of regions of the first conductivity type having a higher conductivity than the substrate, a common anode formed by a uniform layer of the first conductivity type of higher conductivity than the substrate on the back side of the substrate. Preferably a plurality of trenches filed with an opaque material are provided in the back side of the substrate, the substrate preferably having a thickness of less than approximately 150 um.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: February 23, 2010
    Assignee: Array Optronix, Inc.
    Inventor: Alexander O. Goushcha
  • Publication number: 20100019672
    Abstract: A mesotube apparatus is disclosed which includes a header insulator in order to avoid premature breakdown at lower voltage that occurs between a cathode and an anode in a discharge assembly. A chamber can be mounted on a header base and can be located away from plasma surrounded with dielectric so that breakdown occurs outside the normal voltage operating range. A number of feed-through pins associated with the header base can be electrically isolated from the header base by a dielectric insulator. The dielectric insulator can also be placed over the header base and topside of the chamber in order to passivate from stray electrons and plasma. The header base can be thin which allows welding of the anode and the cathode to the feed-through pins with a weld tool attached to the side of the feed-through pins. The chamber can be located on the header base by tightly fitting to the feed-through pins.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 28, 2010
    Inventors: Barrett E. Cole, Khanh Q. Nguyen
  • Patent number: 7652425
    Abstract: A transmission type photocathode includes a light absorption layer 1 formed of diamond or a material containing diamond as a main component, a supporting frame 21 for reinforcing the mechanical strength of the light absorption layer 1, a first electrode 31 provided at the plane of incidence of the light absorption layer 1, and a second electrode 32 provided at the plane of emission of the light absorption layer 1. A voltage is applied between the plane of incidence and plane of emission of the light absorption layer 1 to form an electric field in the light absorption layer 1. When light to be detected is made incident and photoelectrons occur in the light absorption layer 1, the photoelectrons are accelerated to the plane of emission by the electric field formed in the light absorption layer 1, and emitted to the outside of the transmission type photocathode.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: January 26, 2010
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Minoru Niigaki, Shoichi Uchiyama, Hirofumi Kan
  • Patent number: 7648655
    Abstract: The black bus electrode of plasma display panel is formed from a conductive composition comprising a conductive powder, glass powder, organic binder, organic solvent, and black pigment, wherein the conductive powder is coated with metal selected from the group of Ru, Rh, Pd, Os, Ir, Pt and Au.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: January 19, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hisashi Matsuno, Michael F. Barker
  • Publication number: 20090322221
    Abstract: An improved design for maintaining separation between electrodes in tunneling, resonant tunneling, diode, thermionic, thermo-photovoltaic and other devices is disclosed. At least one electrode 1 is made from flexible material. A magnetic field B is present to combine with the current flowing in the flexible electrode 1 and generate a force or a thermal expansion force combined with a temperature distribution that counterbalances the electrostatic force or other attracting forces between the electrodes. The balancing of forces allows the separation and parallelism between the electrodes to be maintained at a very small spacing without requiring the use of multiple control systems, actuators, or other manipulating means, or spacers. The shape of one or both electrodes 1 is designed to maintain a constant separation over the entire overlapping area of the electrodes, or to minimize a central contact area.
    Type: Application
    Filed: August 28, 2007
    Publication date: December 31, 2009
    Applicant: TEMPRONICS, INC.
    Inventor: Tarek Makansi
  • Patent number: 7601042
    Abstract: An electron gun for generating an electron beam is provided, which includes a secondary emitter. The secondary emitter includes a non-contaminating negative-electron-affinity (NEA) material and emitting surface. The gun includes an accelerating region which accelerates the secondaries from the emitting surface. The secondaries are emitted in response to a primary beam generated external to the accelerating region. The accelerating region may include a superconducting radio frequency (RF) cavity, and the gun may be operated in a continuous wave (CW) mode. The secondary emitter includes hydrogenated diamond. A uniform electrically conductive layer is superposed on the emitter to replenish the extracted current, preventing charging of the emitter. An encapsulated secondary emission enhanced cathode device, useful in a superconducting RF cavity, includes a housing for maintaining vacuum, a cathode, e.g.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: October 13, 2009
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Triveni Srinivasan-Rao, Ilan Ben-Zvi
  • Publication number: 20090079345
    Abstract: A light emitting/receiving element includes: a substrate; an organic layer which is provided above the substrate; a forward bias power supply which applies a bias voltage between both ends of the organic layer so as to inject charges from an outside into the organic layer; a reverse bias power supply which applies a bias voltage, which is opposite in polarity to the bias voltage applied by the forward bias power supply, between the both ends of the organic layer so as to extract charges generated in the organic layer to the outside; and a current detecting unit, wherein the organic layer includes an organic material which, when the bias voltage is applied by the forward bias power supply, has the light emitting function, and which, when the bias voltage is applied by the reverse bias power supply, has the photoelectric converting function.
    Type: Application
    Filed: September 26, 2008
    Publication date: March 26, 2009
    Applicant: FUJIFILM CORPORATION
    Inventor: Masafumi INUIYA
  • Patent number: 7508131
    Abstract: Electron multipliers, radiation detectors, and methods of making the multipliers and detectors are described. In some embodiments an electron multiplier has a structure including a plurality of interconnected fibers having electron-emissive surfaces, the fibers having a width to thickness aspect ratio greater than one.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: March 24, 2009
    Assignee: Nova Scientific, Inc.
    Inventors: R. Gregory Downing, W. Bruce Feller, P. Brian White, Paul L. White
  • Patent number: 7476838
    Abstract: A photo cathode converts an incident light into photoelectrons. A photomultiplier kept vacuum inside thereof, amplifies photoelectrons converted by the photo cathode. Photoelectrons intensified by the photomultiplier arrives at an output electrode array, and a current signal produced by the photoelectrons arriving at the output electrode array is directly read outside the photomultiplier via metal bulbs or anisotropic conductive rubber.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: January 13, 2009
    Assignee: The University of Tokyo
    Inventor: Makoto Sasaki
  • Publication number: 20080001540
    Abstract: A photo-therapeutic, electrodeless lamp (10) comprising a closed-loop envelope (12) containing an arc generating and sustaining medium that includes mercury. A phosphor coating (14) is provided on the interior surface of the envelope (12). The phosphor coating is capable of generating a first radiation in response to excitation from 254 nm radiation and provides the first radiation having an energy output in the region of 335-430 nm. This wavelength region is most efficient for the treatment of morphea or scleroderma. The output radiated energy from the lamp in the 335-430 nm region is ?20,000 ?W/cm2. In a preferred embodiment of the invention the phosphor is SrB4O7:Eu, which has a spectral response with a peak between 366-368 nm with a bandwidth of about 18 nm.
    Type: Application
    Filed: June 30, 2007
    Publication date: January 3, 2008
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Robert Martin, Arunava Dutta, Aline Tetreault
  • Patent number: 7297924
    Abstract: An optronic observation device including a detector having a photocathode and a sensor arranged to receive an incident light beam. The device also including a switch to position an optical element opposite the detector in the pathway of the incident beam or to retract the optical element and a focusing element to focus an incident ray on the photocathode when the optical element is in a retracted position. When the optical element is positioned opposite the detector, it is able to focus the beam on the sensor and to filter the beam spectrally to block all or part of the wavelengths for which the responsiveness of the photocathode is greater than a given threshold.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: November 20, 2007
    Assignee: Sagem Defense Securite
    Inventors: Geoffroy DelTel, Sylvain Faure, Denis Guettier, Philippe Patry
  • Patent number: 7251400
    Abstract: A limiter device is used as a fiber optic faceplate (FOFP) night vision goggle for limiting light or laser induced damage on a vacuum side of the FOFP. The limiter device includes a plurality of longitudinally extending optical fibers, each bundled to each other to form a light input surface on an external side of the FOFP and a light output surface on the vacuum side of the FOFP. The optical fibers include fiber optic cores and a glass cladding surrounding each of the cores. A portion of the glass cladding is replaced by an optical absorber material extending longitudinally away from the light input surface. The optical absorber material may extend longitudinally about 1-20 microns away from the light input surface.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: July 31, 2007
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventor: Niels Frederick Jacksen
  • Patent number: 7189956
    Abstract: In a photomultiplier, a ring-like side tube is not interposed between a side tube and a stem in the radial direction, and the side tube is joined to the ring-like side tube in a state of being directly capped onto a portion of the stem that protrudes out from an open end face at the upper side of the ring-like side tube. The enlargement of the photomultiplier in the radial direction due to overlapping of the side tube and the ring-like side tube can thereby be restricted and a high density, a high degree of integration, etc., can be realized in mounting the photomultiplier.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: March 13, 2007
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Hideki Shimoi, Hiroyuki Kyushima
  • Patent number: 7026041
    Abstract: Organic photosensitive optoelectronic devices (“OPODs”) are disclosed which include an exciton blocking layer to enhance device efficiency. Single heterostructure, stacked and wave-guide type embodiments are disclosed. Photodetector OPODs having multilayer structures and an exciton blocking layer are also disclosed. Guidelines for selection of exciton blocking layers are provided.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: April 11, 2006
    Assignee: The Trustees of Princeton University
    Inventors: Stephen R. Forrest, Vladimir Bulovic, Peter Peumans
  • Patent number: 6992441
    Abstract: A photocathode manufacturing intermediary article (24) includes a substrate layer (26), and an active layer (20) that is carried by the substrate layer (26). The active layer (20) includes photoemissive alkali antimonide material that is epitaxially grown on the substrate (26).
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: January 31, 2006
    Assignee: Litton Systems, Inc.
    Inventors: Robert Glosser, Joseph P. Estrera, Loig E. Bourree
  • Patent number: 6989632
    Abstract: A photomultiplier has a dynode cascade arranged radially rather than axially. Effective dynode area thereby can increase through the cascade, leading to improved linearity of response, and the axial length of the device can be reduced. The dynodes are sections of a set of toroids and may be formed as a layer of secondary emissive material such as caesiated antimony on a monolithic sintered cast or otherwise moulded or machined block of insulating material. This novel form of dynode construction can also be used in other photomultiplier or electron multiplier configurations.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: January 24, 2006
    Assignee: Electron Tubes Limited
    Inventors: Anthony Bach, Ron McAlpine
  • Patent number: 6828544
    Abstract: A night vision system for a vehicle includes a pulsed light source for illuminating a region proximate the vehicle, the light source operating at a predetermined pulse timing. A light sensor generates a light intensity signal in response to detecting light at approximately the same wavelength as light from the light source. A controller receives first and second light intensity signals from the light sensor corresponding to first and second time periods between pulses of the light source, compares the first and second light intensity signals, and modifies the light source pulse timing as a function of a ratio or difference between the first and second light intensity signals, to avoid blinding of the vehicle's night vision system by similarly-equipped vehicle's traveling in the opposite direction.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: December 7, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Craig Hammann Stephan, Jeffrey Thomas Remillard
  • Publication number: 20040232834
    Abstract: A housing for microelectronic devices requiring an internal vacuum for operation, e.g., an image detector, is formed by tape casting and incorporates leads between interior and exterior of said housing where said leads are disposed on a facing surface of green tape layers. Adjacent green tape layers having corresponding apertures therein are stacked on a first closure member to form a resulting cavity and increased electrical isolation or channel sub-structures are achievable by forming adjacent layers with aperture dimension which vary non-monotonically. After assembly of the device within the cavity, a second closure member is sealed against an open face of the package in a vacuum environment to produce a vacuum sealed device.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Inventor: Kenneth A. Costello
  • Publication number: 20040151887
    Abstract: Organic photosensitive optoelectronic devices (“OPODs”) are disclosed which include an exciton blocking layer to enhance device efficiency. Single heterostructure, stacked and wave-guide type embodiments are disclosed. Photodetector OPODs having multilayer structures and an exciton blocking layer are also disclosed. Guidelines for selection of exciton blocking layers are provided.
    Type: Application
    Filed: January 14, 2004
    Publication date: August 5, 2004
    Inventors: Stephen R. Forrest, Vladimir Bulovic, Peter Peumans
  • Patent number: 6765352
    Abstract: A photocathode and an electron tube in which the photocathode plate can be securely fixed without using any adhesive. Even under the severe condition that a high vibration resistance is required or thermal stress occurs because of great temperature variation, it can be used widely for an image intensifier, a streak tube, or a photomultiplier. The photocathode plate of the photocathode is sandwiched between a faceplate and a support plate. First pins embedded in the faceplate are joined to the support plate. Therefore, the photocathode plate can be readily fixed securely to the faceplate without using any adhesive.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: July 20, 2004
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Akihiko Ohtomo, Tsuneo Ihara, Kuniyoshi Mori, Yoshiyuki Natsume
  • Patent number: 6759800
    Abstract: A photocathode as a source of electron beams, having a substrate of optically transmissive diamond and a photoemitter. A photocathode with a single emitting region provides a single electron beam; a photocathode with multiple emitting regions provides multiple electron beams. The photoemitter is positioned on the side of the diamond substrate opposite the surface on which the illumination is incident, and has an irradiation region at the contact with the optically transmissive diamond, and an emission region opposite the irradiation region, these regions being defined by the path of the illumination. The diamond substrate at the irradiation region/emission region interface conducts heat away from this focused region of illumination on the photocathode. Alternately, a diamond film is used for heat conduction, while another material is used as a substrate to provide structural support.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: July 6, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Andres Fernandez, Timothy Thomas, Xiaolan Chen, Steven T. Coyle, Ming Yu, Marian Mankos
  • Patent number: 6713668
    Abstract: A solar energy converter includes: a light-concentrating instrument; an electron emitter in an insulated vacuum vessel, emitting electrons in a vacuum as a temperature rises by sunlight; an electron accelerator within the light-concentrating instrument; a cathode on a surface of the electron emitter opposite to a surface which is irradiated by sunlight, and electrically connected with the electron emitter; an electric field supplier having a positive terminal and a negative terminal; and an electron collector in the vacuum vessel, collecting the emitted electrons flying from the electron emitter toward the electron accelerator; wherein the electron accelerator is connected with the positive terminal and the cathode is connected with the negative terminal to generate an electric field, and the electron collector is used as a negative generator electrode and the cathode is used as a positive generator electrode in which the collected electrons migrate to the electron emitter to generate electricity.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: March 30, 2004
    Inventor: Norio Akamatsu
  • Patent number: 6692820
    Abstract: Organic photosensitive optoelectronic devices (“OPODs”) which include an exciton blocking layer to enhance device efficiency. Single heterostructure, stacked and wave-guide type embodiments. Photodetector OPODs having multilayer structures and an exciton blocking layer. Guidelines for selection of exciton blocking layers are provided.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: February 17, 2004
    Assignee: The Trustees of Princeton University
    Inventors: Stephen R. Forrest, Vladimir Bulovic, Peter Peumans
  • Patent number: 6674062
    Abstract: A system (300) for gating a sensor (118) includes a detector (120) that detects light and outputs a signal (102) corresponding to the light. A control unit (334) receives the signal (106), and enables and disables a power supply (314) in response to the signal (106) to generate a gated power signal (316). The power supply (314) outputs the gated power signal (316) to a sensor (118) sensing the light.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: January 6, 2004
    Assignee: Litton Systems, Inc.
    Inventors: Timothy E. Ostromek, Joseph P. Estrera, Antonio V. Bacarella
  • Publication number: 20030222579
    Abstract: An electron-emitting photocathode includes a base and a large number of projecting elements such as microscopic wires projecting from a surface of the base. The photocathode has high quantum efficiency, and hence can be used as the emitting element in a sensitive phototube.
    Type: Application
    Filed: November 13, 2002
    Publication date: December 4, 2003
    Applicant: Burle Technologies, Inc.
    Inventors: Youssef M. Habib, John G. Bryan, Charles W. Stoll, John W. Steinbeck
  • Patent number: 6657384
    Abstract: Provided is a small-sized less expensive light-intensity measuring apparatus for measuring a xenon excimer lamp that radiates a light beam having a central wavelength of 172 nm for an intensity. The light-intensity measuring apparatus of the present invention comprises a photoelectric converting means 23, preferably a photodiode, having photosensitivity in the range of from 800 to 1,000 nm, an operating means 25 for relatively determining the intensity of a light beam having a central wavelength of 172 nm depending upon an output of the photoelectric converting means 23 and a transmitting means 26 for transmitting the light intensity determined with the operating means 25.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: December 2, 2003
    Assignee: Hoya-Schott Corporation
    Inventor: Shunji Niwa
  • Patent number: 6653547
    Abstract: The solar energy converter comprises an electron emitter and an electron collector. They are provided separate from each other in a vacuum vessel. Solar energy in a wide range of sunlight spectrum can be efficiently converted into electric energy by moving electrons from the electron emitter to the electron collector.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: November 25, 2003
    Inventor: Norio Akamatsu
  • Publication number: 20030137243
    Abstract: A housing for microelectronic devices requiring an internal vacuum for operation, e.g., an image detector, is formed by tape casting and incorporates leads between interior and exterior of said housing where said leads are disposed on a facing surface of green tape layers. Adjacent green tape layers having corresponding apertures therein are stacked on a first closure member to form a resulting cavity and increased electrical isolation or channel sub-structures are achievable by forming adjacent layers with aperture dimension which vary non-monotonically. After assembly of the device within the cavity, a second closure member is sealed against an open face of the package in a vacuum environment to produce a vacuum sealed device.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 24, 2003
    Inventor: Kenneth A. Costello
  • Patent number: 6586877
    Abstract: In an electron tube 1, a space S between a periphery part 15b of a semiconductor device 15 and a stem 11 is filled with an insulating resin 20. The insulating resin 20 functions as a reinforcing member while the electron tube 1 is assembled under high-temperature condition, thereby preventing a bump 16 from coming off a bump connection portion 19. Since the space S is only partly closed by the resin 20, the space between the semiconductor device 15 and the stem 11 is ensured a ventilability. That is, no air reservoir is formed between an electron incidence part 15a at the center of the semiconductor device 15 and the surface C of the stem 11, whereby air expanding at high temperature does not damage the electron incidence part 15a of the back-illuminated semiconductor device 15.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: July 1, 2003
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Motohiro Suyama, Akihiro Kageyama, Masaharu Muramatsu
  • Patent number: 6573640
    Abstract: A photodetecting device is characterized by comprising a photodetecting section having a photoelectric surface for emitting photoelectrons upon incidence of light, a semiconductor detection element having an electron incident surface on which the photoelectrons can be incident, and a vacuum vessel in which the photoelectric surface is arranged on one inner surface, and the semiconductor detection element is arranged on the other inner surface opposing the one surface, and cooling means for cooling a structure on the semiconductor detection element side of the vacuum vessel.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: June 3, 2003
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Naotaka Hakamata, Tadashi Maruno, Motohiro Suyama
  • Patent number: 6563264
    Abstract: This photocathode comprises: InP substrate 1; InAsx2P1−x2(0<x2<1) buffer layer 2; Inx1Ga1−x1As (1>x1>0.53) light-absorbing layer 3; InAsx3P1−x3 (0<x3<1) electron-emitting layer 4; InAsx3P1−x3 contact layer 5 formed on the electron-emitting layer 4; active layer 8 of an alkali metal or its oxide or fluoride formed on the exposed surface of electron-emitting layer 4; and electrodes 6 and 7.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: May 13, 2003
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Minoru Niigaki, Toru Hirohata, Tomoko Mochizuki, Hirofumi Kan
  • Publication number: 20020197462
    Abstract: Organic photosensitive optoelectronic devices (“OPODs”) are disclosed which include an exciton blocking layer to enhance device efficiency. Single heterostructure, stacked and wave-guide type embodiments are disclosed. Photodetector OPODs having multilayer structures and an exciton blocking layer are also disclosed. Guidelines for selection of exciton blocking layers are provided.
    Type: Application
    Filed: August 5, 2002
    Publication date: December 26, 2002
    Inventors: Stephen R. Forrest, Vladimir Bulovic, Peter Peumans
  • Patent number: RE38959
    Abstract: An aluminosilicate glass having a composition consisting essentially of, as calculated in weight percent on an oxide basis, of 58-70% SiO2, 12-22% Al2O3, 3-15% B2O3, 2-12% CaO, 0-3% SrO, 0-3% BaO, 0-8% MgO, 10-25% MCSB (i.e., MgO+CaO+SrO+BaO), and SrO and BaO in combination being less than 3%.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: January 31, 2006
    Assignee: Corning Incorporated
    Inventor: Jeffrey T. Kohli
  • Patent number: RE41127
    Abstract: An aluminosilicate glass having a composition consisting essentially of, as calculated in weight percent on an oxide basis, of 58-70% SiO2, 12-22% Al2O3, 3-15% B2O3, 2-12% CaO, 0-3% SrO, 0-3% BaO, 0-8% MgO, 10-25% MCSB (i.e., MgO+CaO+SrO+BaO), and SrO and BaO in combination being less than 3%.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: February 16, 2010
    Assignee: Corning Incorporated
    Inventor: Jeffrey T. Kohli