Temperature Control Of Photocell Patents (Class 250/238)
  • Patent number: 10302867
    Abstract: In an example, a system comprises a first optical device, a second optical device, and an optical modulator. The first optical device, in a non-cryogenic environment, receives a light signal, outputs the light signal, receives a first modulated light signal, and outputs the first modulated light signal into the non-cryogenic environment. The second optical device, in a cryogenic environment, receives the light signal from the first optical device, outputs the light signal, receives the first modulated light signal, and outputs the first modulated light signal. The optical modulator, in the cryogenic environment, receives the light signal from the second optical device, modulates the light signal to produce the first modulated light signal and a second modulated light signal, outputs the second modulated light signal, and outputs the first modulated light signal to the second optical device.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 28, 2019
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Anastasios Goutzoulis, Mario J. Venetos
  • Patent number: 10215629
    Abstract: The present invention discloses a handheld optical radiation meter and a correction method thereof. The handheld optical radiation meter has a photometric measurement module, a spectral measurement module and a screen. The spectral quantities of the spectral measurement module are employed to correct the spectral mismatch error of the photometric measurement module. With simple configuration, the present invention can realize high accuracy photometry and chromaticity measurement within a wide-span dynamic range, and has the characteristics of complete test functions, high measurement accuracy, convenient operation, low cost, etc.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: February 26, 2019
    Assignee: EVERFINE PHOTO-E-INFO CO., LTD.
    Inventor: Jiangen Pan
  • Patent number: 10175161
    Abstract: Disclosed are optical computing devices that employ birefringent optical elements configured for use in optical computing devices. One optical computing device includes a polarizer configured to generate at least x polarized light and y polarized light, a birefringent integrated computational element configured to optically interact with a substance and the polarizer, thereby generating optically interacted light, and at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the substance.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: January 8, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Neal Gregory Skinner, David L. Perkins
  • Patent number: 10159137
    Abstract: A load control device adapted to be coupled between an AC power source and an electrical load for controlling the power delivered to the load includes a controller, an actuator for turning the electrical load on and off, an occupancy detection circuit, and an ambient light detector. The load control device automatically turns on the electrical load in response to the presence of an occupant only if the detected ambient light is below a predetermined ambient light level threshold. After first detecting the presence of an occupant, the load control device monitors actuations of the actuator to determine whether a user has changed the state of the load. The load control device automatically adjusts the predetermined ambient light level threshold in response to the user actuations that change the state of the load.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: December 18, 2018
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Ryan S. Bedell, James P. Steiner
  • Patent number: 10137445
    Abstract: A single use capillary micropipette and a method of use for dispensing a defined volume of a liquid are disclosed. The capillary micropipette includes a housing, a piston disposed therein and a capillary tube connected to the housing. The housing has a holding chamber including chamber snap fit elements on the chamber wall, piston stop(s) and a bottom having a central opening with a tubular member extending therefrom. The piston includes a push cap having snap fit arms extending downward and a piston rod. In the assembled position, a venting space between the piston head and the central opening permits venting during aspiration of a liquid into capillary tube by capillary force. In response to an applied downward force, the snap fit arms of the push cap snap over chamber snap fit elements and piston rod slides in the tubular member, thereby dispensing a defined volume of the liquid.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: November 27, 2018
    Inventor: Gunnar Magnusson
  • Patent number: 10137446
    Abstract: A dispensing device for dispensing a defined volume of a liquid from a closed container includes a housing and a spring loaded piston disposed therein. The housing has a holding chamber that includes chamber snap fit elements on the chamber wall, piston stop(s), and a bottom having a central opening with a tubular member extending therefrom. The spring loaded piston includes a push cap including snap fit arms extending from underside of a top pusher and a spring around a piston rod under the top pusher. The device is so configured that engagement modes between arm snap fit elements of the push cap and chamber snap fit elements of the holding chamber control a venting position and an injection starting position of the spring loaded piston, and abutment of the push cap with the piston stop(s) in the holding chamber controls an injection ending position of the spring loaded piston.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 27, 2018
    Inventor: Gunnar Magnusson
  • Patent number: 9989459
    Abstract: The invention provides differential refractive index detectors and methods for the use of differential refractive index detectors. In an exemplary embodiment, a differential refractive index detector includes a flow cell body having a proximal end, a distal end, and a flow axis extending between the proximal and the distal end. The flow cell body includes a first chamber and a second chamber and the fluid conduits coupled to the flow cell body can be tapered to reduce dispersion.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: June 5, 2018
    Assignee: WATERS TECHNOLOGIES CORPORATION
    Inventors: Anthony C. Jeannotte, Mark Basile, Senthil Bala, Colin Fredette
  • Patent number: 9804085
    Abstract: A device and a method are provided for measuring the moisture in die cast molds, the cavity of which is connected via an evacuation conduit to an evacuation device. The modular assembly of the device is connectable to the evacuation conduit and includes a sensor assembly to measure the moisture of gases evacuated from the mold cavity. The sensor assembly includes an emitter emitting electromagnetic radiation and a detector detecting electromagnetic radiation. On the basis of the measured values obtained during the evacuation action it can be determined whether the amount of a water/release agent mixture jetted into the mold cavity needs to be altered before the actual casting action.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: October 31, 2017
    Assignee: Fondarex S.A.
    Inventors: Konrad Baumgartner, Yves Gerard Laurent Huguenin-Vuillemin
  • Patent number: 9572283
    Abstract: An example embodiment includes a thermal conduction system for dissipating thermal energy generated by operation of an optical subassembly that is disposed within a shell of a communication module. The thermal conduction system can include a thermally conductive flexible member that contacts the optical subassembly and the shell of the communication module. By contacting the optical subassembly and the shell, the thermal energy generated by operation of the optical subassembly can transfer from the optical subassembly to the shell. The thermally conductive flexible member defines thermally conductive flexible member holes that correspond to pins extending from the optical subassembly. The pins pass through the thermally conductive flexible member holes enabling the thermally conductive flexible member to contact the optical subassembly.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 14, 2017
    Assignee: FINISAR CORPORATION
    Inventors: Tat Ming Teo, Troy Wy Piew Chiang, JianBing Zhao
  • Patent number: 9437630
    Abstract: The present disclosure relates to photon detectors. In particular, the present disclosure relates to high sensitivity photon detectors such as semiconductor photomultipliers. A semiconductor photomultiplier is described which comprises an array of interconnected photosensitive microcells; and at least one dark count rate (DCR) suppression element associated with the array.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 6, 2016
    Assignee: SensL Technologies Ltd.
    Inventors: Liam Wall, Kevin O'Neill, John Carlton Jackson
  • Patent number: 9357619
    Abstract: A sheet processing device includes a supporting plate, a stapler, a casing, a protrusion structure, and a swinging arm. The casing is disposed over the supporting plate. A sheet conveying channel is formed between the supporting plate and the casing. The protrusion structure is disposed on a lower surface of the casing, located beside the stapler and accommodated within the sheet conveying channel. During the process of introducing a sheet into the supporting plate, the stapled side of the sheet is flattened by the protrusion structure, and thus the possibility of upturning the sheet is minimized. During the process of introducing the plural sheets to the stapler, the stapled sides of the plural sheets are flattened by the protrusion structure, and thus the formation of the folded corners of the sheets is avoided.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: May 31, 2016
    Assignee: LIVINGSTYLE ENTERPRISES LIMITED
    Inventors: Ming-Yun Chen, Cai-Jin Li
  • Patent number: 9297526
    Abstract: A light source apparatus includes a cooling mechanism driving portion for driving a cooling mechanism in such a manner that an element temperature of a light source element which is detected by an element temperature detecting portion reaches a target temperature, and a control portion for calculating a dew point temperature of the cooling mechanism and controlling the cooling mechanism driving portion and a light source element driving portion by using the calculated dew point temperature and the element temperature.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: March 29, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koji Kumano, Makoto Kuriaki, Takumi Kijima, Yasuhito Tanaka
  • Patent number: 9234857
    Abstract: A temperature uniformity device controls the temperature and temperature uniformity of an object such as a photovoltaic module undergoing testing. The temperature uniformity device includes a thermal conductivity device and a pliable thermally conductive interface material inserted between the object and the thermal conductivity device.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: January 12, 2016
    Assignee: FIRST SOLAR, INC.
    Inventors: Kevin Niebel, James Sorensen, Patrick Buehler
  • Patent number: 9024535
    Abstract: An optical lighting apparatus having a constant luminance with a drive current controlled by a controller unit. A temperature controlled photodetector indirectly monitors the luminance and informs the controller when a change in luminance has occurred so that the controller can make appropriate adjustments to the drive current. Also disclosed is a method of regulating the drive current to a light source to enable the luminance to remain fixed and independent of fluctuations in ambient temperature. A temperature compensated photodetector senses the amount of light reflected off a diffuser lens and feeds back the output to a controller circuit which regulates the drive current to the light source. The lighting apparatus has application in calibrating imaging systems, such as digital cameras, and for scanning devices.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: May 5, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Carl Picciotto, Glen Eric Montgomery, Jeffrey DiCarlo
  • Patent number: 8981281
    Abstract: An optical module comprising a tunable interference filter including a first substrate, a second substrate facing the first substrate, a first reflective film formed on the first substrate, a second reflective film formed on the second substrate and facing the first reflective film, a gap changing unit changing a gap between the first reflective film and the second reflective film, and a driving electrode line electrically connected to the gap changing unit, a temperature sensor detecting temperature of the tunable interference filter and including a first sensor wiring and a second sensor wiring, the first sensor wiring being electrically connected to the driving electrode line, a switch electrically connected to the second sensor wiring, and a temperature detecting circuit electrically connected to the switch.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 17, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Takeshi Nozawa
  • Patent number: 8958011
    Abstract: Bi-directional camera modules and flip chip bonders including the same are provided. The module includes a circuit board on which an upper sensor and a lower sensor are mounted, an upper lens and a lower lens disposed on the upper sensor and under the lower sensor, respectively, and a housing fixing the upper lens and the lower lens spaced apart from the upper sensor and the lower sensor, respectively. The housing surrounds the circuit board. The housing has a plurality of inlets and an outlet through which air flows, and the housing has an air passage connected from the inlets to the outlet via a space between lower lens and the lower sensor.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Sick Park, Myung-Sung Kang, Ji-Seok Hong
  • Publication number: 20140339406
    Abstract: Disclosed are systems and methods for actively controlling the temperature of an integrated computational element used in an optical computing device in order to affect its performance. One method includes providing an integrated computational element configured detect a characteristic of a substance and provide a transmission profile via a detector corresponding to the characteristic, and controlling a temperature of the integrated computational element in order to maintain the transmission profile within an optimal operating range.
    Type: Application
    Filed: January 15, 2013
    Publication date: November 20, 2014
    Inventors: David L. Perkins, Li Gao, Michael T. Pelletier
  • Patent number: 8872100
    Abstract: Disclosed are systems and methods for actively controlling the temperature of an integrated computational element used in an optical computing device in order to affect its performance. One method includes providing an integrated computational element configured detect a characteristic of a substance and provide a transmission profile via a detector corresponding to the characteristic, and controlling a temperature of the integrated computational element in order to maintain the transmission profile within an optimal operating range.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: October 28, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: David L. Perkins, Li Gao, Michael T. Pelletier
  • Publication number: 20140217272
    Abstract: A thermal conductivity and phase transition heat transfer mechanism incorporates an active optical element. Examples of active optical elements include various phosphor materials for emitting light, various electrically driven light emitters and various devices that generate electrical current or an electrical signal in response to light. The thermal conductivity and phase transition between evaporation and condensation, of the thermal conductivity and phase transition heat transfer mechanism, cools the active optical element during operation. At least a portion of the active optical element is exposed to a working fluid within a vapor tight chamber of the heat transfer mechanism. The heat transfer mechanism includes a member that is at least partially optically transmissive to allow passage of light to or from the active optical element and to seal the chamber of the heat transfer mechanism with respect to vapor contained within the chamber.
    Type: Application
    Filed: April 10, 2014
    Publication date: August 7, 2014
    Applicant: ABL IP HOLDING LLC
    Inventors: David P. RAMER, Jack C. RAINS, JR.
  • Patent number: 8791402
    Abstract: A detector device is configured to receive light and generate electrical signals. The detector device includes a housing, a detector disposed in the housing and a cooling component disposed in the housing. The cooling component is at least one of: positioned so as to have a light path extend through the cooling component, where the light path is defined by light that is received for detection; designed so as to include a thermally conductive, electrically insulating intermediate element; and disposed, in direct contact a light sensor of the detector and/or a substrate bearing the light sensor.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: July 29, 2014
    Assignee: Leica Microsystems CMS GmbH
    Inventor: Bernd Widzgowski
  • Patent number: 8735802
    Abstract: For an optical transmitter in which an EA modulator modulates a laser beam emitted from an LD, a control circuit stops heating/cooling of the EA modulator when a casing temperature (TC) is within a range of a low-temperature side reference temperature (T_cool) and a high-temperature side reference temperature (T_heat), sets a bias voltage for the EA modulator to a bias voltage corresponding to the modulator temperature based on table information recorded on a memory circuit, heats the EA modulator and sets the bias voltage corresponding to the low-temperature side reference temperature when the casing temperature is equal to or lower than the low-temperature side reference temperature, and cools the EA modulator and sets the bias voltage corresponding to the high-temperature side reference temperature when the casing temperature is equal to or higher than the high-temperature side reference temperature.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: May 27, 2014
    Assignee: NEC Corporation
    Inventor: Kohei Iwanaga
  • Patent number: 8653439
    Abstract: An optical sensor system is disclosed including a source module, a detection module, and a heating module. The source module includes a source housing unit having a source window member to emit a detection signal through the source window member. The detection module includes a first detection housing unit having a first detection window member spaced apart from the source module. The detection signal received by the detection module corresponds to an amount of volatile organic compounds (VOC) present in a path of the detection signal between the detection module and the source module. The heating module heats the source window member and the detection window member to remove deposit formation of the VOC there from.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 18, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Krzysztof Nauka, Seongsik Chang, Henryk Birecki
  • Patent number: 8536514
    Abstract: A method of measuring the temperature of a sheet material in which the sheet material is arranged such that it forms at least one side of a cavity so as to enhance the effective emissivity of the sheet material in the vicinity of the cavity.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: September 17, 2013
    Assignee: Land Instruments International Limited
    Inventors: Thomas Geoffrey Ronald Beynon, Ian Hamilton Ridley, Stuart Francis Metcalfe, Andrew Mellor, Ben Wileman
  • Publication number: 20130214142
    Abstract: The primary purpose of the present invention is to provide an fluid circulating installation adapted with a temperature equalization system and fluid transmission duct disposed in a heat carrier existing in solid or liquid state in the nature where presents comparatively larger and more reliable heat carrying capacity. The fluid passes through the solid or gas state semiconductor application installation to regulate the semiconductor application installation for temperature equalization, and flows back to the heat equalization installation disposed in the natural heat carrier of heat for the heat equalization installation providing good heat conduction in the natural heat carrier to provide the operation of temperature equalization regulating function on the backflow of the fluid.
    Type: Application
    Filed: March 26, 2013
    Publication date: August 22, 2013
    Inventor: Tai-Her YANG
  • Patent number: 8445836
    Abstract: Embodiments of a system to maintain an even temperature distribution across a laser detector are generally described herein. In some embodiments, the system includes a multi-layer printed circuit board (PCB) assembly that includes a first layer comprising a thermally-conductive ring provided circumferentially around a thermally-conductive detector region for mounting the laser detector, a second layer comprising a plurality of resistive elements aligned with the thermally-conductive detector region to generate heat, and a fourth layer comprising a thermally-conductive heat-distribution region aligned with the thermally-conductive detector region. A plurality of thermally-conductive vias is provided to couple the thermally-conductive ring of the first layer to the thermally-conductive heat-distribution region of the fourth layer.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: May 21, 2013
    Assignee: Raytheon Company
    Inventors: Victor D. Kruppa, Richard A. Schmidt
  • Patent number: 8440951
    Abstract: A wavelength conversion laser light source includes: a fundamental light source for outputting fundamental light; a wavelength conversion element with a nonlinear optical effect for converting the fundamental light into harmonic light of a different wavelength; a first optical receiver for receiving light of a specific polarization direction contained in the fundamental light output from the fundamental light source and converting an amount of light thereof into an electrical signal; a second optical receiver for receiving the harmonic light output from the wavelength conversion element and converting an amount of light thereof into an electrical signal; a temperature holding unit for holding a temperature of the wavelength conversion element constant; a fundamental light control unit for performing first control of controlling an amount of light of the fundamental light output from the fundamental light source based on the electrical signal from the second optical receiver, and second control of controlling
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: May 14, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroyuki Furuya, Koichi Kusukame, Tetsuro Mizushima, Toshifumi Yokoyama, Kenji Nakayama, Kazuhisa Yamamoto, Shinichi Kadowaki, Tomoya Sugita, Nobuyuki Horikawa
  • Publication number: 20130043376
    Abstract: A detector device is configured to receive light and generate electrical signals. The detector device includes a housing, a detector disposed in the housing and a cooling component disposed in the housing. The cooling component is at least one of: positioned so as to have a light path extend through the cooling component, where the light path is defined by light that is received for detection; designed so as to include a thermally conductive, electrically insulating intermediate element; and disposed in direct contact a light sensor of the detector and/or a substrate bearing the light sensor.
    Type: Application
    Filed: December 14, 2011
    Publication date: February 21, 2013
    Applicant: LEICA MICROSYSTEMS CMS GMBH
    Inventor: Bernd Widzgowski
  • Publication number: 20130043378
    Abstract: A detector apparatus is configured to receive light and generate electrical signals. The detector apparatus includes a housing, a detector disposed in the housing and a cooling component disposed in the housing. The cooling component electrically insulates the detector with respect to the housing or is part of an insulator electrically that insulates the detector with respect to the housing.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 21, 2013
    Applicant: LEICA MICROSYSTEMS CMS GMBH
    Inventors: Frank Schreiber, Bernd Widzgowski, Holger Birk
  • Publication number: 20130043377
    Abstract: A detector apparatus is configured to receive light and generate electrical signals. The detector apparatus includes a light sensor having a light incidence side and a cooling component. The cooling component is in direct contact with at least one of the light sensor, on the light incidence side, or a substrate carrying the light sensor.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 21, 2013
    Applicant: LEICA MICROSYSTEMS CMS GMBH
    Inventors: Frank Schreiber, Bernd Widzgowski, Holger Birk
  • Patent number: 8253093
    Abstract: An optoelectronic detector and method of using same. In order to avoid any condensation on a surface, it has been known to heat such a surface. However, heating an optoelectronic detector will create a stronger hissing noise due to the greater dark current that is caused thereby. The invention is intended to avoid any condensation on an optoelectronic detector without airtight encapsulation. To this end, the detector is cooled and equipped with a sensor for the determination of a current value of one of the variables ambient humidity and ambient dew point temperature and a control unit that is connected with the sensor and designed to control the cooling device in dependence of such a value. By taking into account the ambient humidity or, respectively, the dew point temperature in the control of the cooling device, condensation on the detector can be avoided. An airtight encapsulation of the detector and the cooling device is not required.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: August 28, 2012
    Assignee: Carl Zeiss MicroImaging GmbH
    Inventors: Mirko Liedtke, Matthias John
  • Patent number: 8217333
    Abstract: A flowmeter determines the flow direction of a fluid. The flowmeter has a measuring element, around which the fluid flows and which comprises at least one fiber-optic cable and at least two electrical heating elements that lie adjacent to the fiber-optic cable(s) by a respective heat stream emanating from the respective heating element and directed towards at least one fiber-optic cable, the directions of the heat streams being at least proportionately reversed. In addition, the values of the individual heat streams can be influenced to different extents, depending on the flow direction of the fluid. An electromagnetic wave that can be coupled into the fiber-optic cable(s) can also be influenced according to the temperature of the fiber-optic cable(s).
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: July 10, 2012
    Assignee: Siemens Aktiengesellschsft
    Inventors: Thomas Bosselmann, Michael Willsch
  • Publication number: 20120075607
    Abstract: A detector module (20) is described that includes at least one detector (30) for sensing photon radiation, an electronic circuit (40) coupled to the at least one detector (30), and a housing (50) having a first and a second body (60, 70), each having a bottom part (62, 72) and an at least partially cylindrical part (64, 74) extending from the bottom part (62, 72), wherein the at least partially cylindrical part (64) of the first body (60) is thermally coupled with the at least partially cylindrical part (74) of the second body (70), wherein the at least partially cylindrical part (64) of the first body (60) extends towards the bottom part (72) of the second body (70), and wherein the electronic circuit (40) is arranged inside the housing (50). A lithographic apparatus including the detector module (20) is also described.
    Type: Application
    Filed: February 16, 2010
    Publication date: March 29, 2012
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Bastiaan Andreas Wilhelmus Hubertus Knarren, Raymond Turk, Allard Eelco Kooiker
  • Publication number: 20120056545
    Abstract: In a circuit (1) for sensing a property of light there are provided a first circuit element (7) that is sensitive to light and that is realized to generate an output signal (I1) during a measurement time period (?tM), wherein the output signal (I1) is generated according to light to which the first circuit element (7) is exposed and the temperature (T) of the first circuit element (7), and a second circuit element (8) that is realized to increase the temperature (T) of the first circuit element (7) during a warming time period (?tW) that precedes the measurement time period (?tM).
    Type: Application
    Filed: April 29, 2010
    Publication date: March 8, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Harald Josef Günther Radermacher, Christoph Martiny
  • Patent number: 8106953
    Abstract: A highly thermal conductive member is filled in a gap between a base portion and a movable portion of a spring stage in an image shift type imaging apparatus. Heat from a heat generating surface of a cooling element is conducted from the movable portion to the base portion through the highly thermal conductive member, and it is further conducted to an inner lid and discharged to the outside of an imaging apparatus housing.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: January 31, 2012
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Kenji Karaki
  • Patent number: 8093547
    Abstract: A projector includes: a light source unit configured to emit light; a light source heat absorber configured to cause coolant to absorb heat from the light source unit; an ejector pump configured to allow passage of the coolant having absorbed the heat in the light source heat absorber; a radiator configured to radiate the heat of the coolant flowed out from the ejector pump; an evaporator configured to cool the coolant stored in the evaporator by evaporating the coolant; and a heat source other than the light source unit, wherein the ejector pump decompress the interior of the evaporator by a pressure drop due to the passage of the coolant having absorbed the heat in the light source heat absorber, and heat from the heat sources other than the light source unit is absorbed by the coolant cooled by the evaporator.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: January 10, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Kunihiko Takagi
  • Patent number: 8089037
    Abstract: A method, process and apparatus for compensating for changes to the gain of photo detectors in a nuclear imaging apparatus is disclosed. Specifically, embodiments detect positron annihilation event pulses using photo detectors. Changes to the gain of the photo detectors are compensated for by determining the relationship of a detected event pulse peak with a target event pulse peak. Based on the difference between these two peaks, a corrected gain is determined in a closed-loop control system. The corrected gain can be used to compensate for temperature changes that can affect the gain of the photo detectors.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: January 3, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Matthias J. Schmand, Dongming Hu, Ziad Burbar
  • Patent number: 8088994
    Abstract: A light concentrating module for transforming light into at least one of electrical and thermal energy is provided. The light concentrating module may be coupled in flow communication with a fluid conversion module and include a primary optical element that has a reflective surface with a plurality of contoured sections. Each contoured section is shaped to reflect light that impinges the contoured section toward a corresponding focal region. The module may also have a receiver system that includes a plurality of energy conversion members positioned proximate to corresponding focal regions. The receiver system also has a working fluid passage for carrying a working fluid that absorbs the thermal energy. The working fluid can be conveyed away from the receiver system through a mounting post that holds the receiver system. In addition, the module may also generate electricity.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: January 3, 2012
    Assignee: Solergy, Inc.
    Inventors: Yoav Banin, Gino D'Ovidio, Giovanni Lanzara
  • Patent number: 8080731
    Abstract: In one embodiment, a solar collector comprises a solar cell attached with a heat exchanger, and a restraining member attached to the heat exchanger. The restraining member at least partly restrains the heat exchanger when heated. In further embodiments, restraining members and methods are disclosed for at least partly restraining the thermal expansion of a solar collector.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: December 20, 2011
    Assignee: The Boeing Company
    Inventor: Robert E. Grip
  • Publication number: 20110215232
    Abstract: Embodiments of a system to maintain an even temperature distribution across a laser detector are generally described herein. In some embodiments, the system includes a multi-layer printed circuit board (PCB) assembly that includes a first layer comprising a thermally-conductive ring provided circumferentially around a thermally-conductive detector region for mounting the laser detector, a second layer comprising a plurality of resistive elements aligned with the thermally-conductive detector region to generate heat, and a fourth layer comprising a thermally-conductive heat-distribution region aligned with the thermally-conductive detector region. A plurality of thermally-conductive vias is provided to couple the thermally-conductive ring of the first layer to the thermally-conductive heat-distribution region of the fourth layer.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 8, 2011
    Applicant: Raytheon Company
    Inventors: Victor D. Kruppa, Richard A. Schmidt
  • Patent number: 7952640
    Abstract: In an image pickup element module, a heat releasing member disposed to be thermally coupled to an FPC substrate and an image pickup element is formed of a PPS resin material having good thermal conductivity. Further, this image pickup element module is configured so that a phase-changing heat storage which is insert-molded or formed into a sheet shape is disposed to be thermally coupled to the heat releasing member.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: May 31, 2011
    Assignee: Olympus Imaging Corp.
    Inventor: Kunio Yamamiya
  • Publication number: 20110120539
    Abstract: An optoelectrical device, which may be a luminaire or a photovoltaic concentrator, has a transparent cover plate. A target with an optoelectrical transducer that produces waste heat in operation is mounted at an inside face of the transparent cover plate. A primary mirror reflects light between being concentrated on the target and passing generally collimated through the cover plate. A heat spreader is in thermal contact with the target. The heat spreader has heat conductors that thermally connect the target with the inside surface of the cover plate. The heat conductors may be arms extending radially outwards, and may be straight, zigzag, or branching. An array of targets may be mounted on a common cover plate, and their heat spreaders may be continuous from target to target.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicant: Light Prescriptions Innovators, LLC
    Inventors: Juan Carlos Miñano, Pablo Benitez, Julio C. Chaves, Waqidi Falicoff, Yupin Sun
  • Patent number: 7860678
    Abstract: A method for automated calibration of an avalanche photodiode receiver includes measuring two values of avalanche photodiode biases at two successive times, measuring and comparing a bit error rate corresponding to each value. When the bit error rate of the second value is equal to or greater than the bit error rate of the first value, then a third value and a fourth value of avalanche photodiode bias closer together are measured. When the bit error rate of the fourth value is smaller than the bit error rate of the third value, two subsequent values as third value and fourth value are measured, and an optimum avalanche photodiode bias when the bit error rate of the fourth value is equal to the bit error rate of the third value is measured.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: December 28, 2010
    Assignee: Allied Telesis, Inc.
    Inventors: Shinkyo Kaku, Vitali Tikhonov, Severino Tolentino
  • Patent number: 7847237
    Abstract: A method for evaluating performance of a solar cell, comprising: a current passing step (S1) of passing, in a forward direction, a direct current with respect to a solar cell element constituting the solar cell; a temperature control step (S2) of heating the solar cell element and controlling a heating temperature of the solar cell element; and a light emission detecting step (S3) of detecting light emission characteristics of light generated from the solar cell element due to the passing of the direct current in the current passing step and the heating of the solar cell element in the temperature control step (S2).
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: December 7, 2010
    Assignees: National University Corporation Nara
    Inventor: Takashi Fuyuki
  • Publication number: 20100294949
    Abstract: Spectrum detection is performed at a high S/N ratio, high sensitivity, and high speed.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 25, 2010
    Applicant: Olympus Corporation
    Inventors: Hiroshi SASAKI, Tatsuo Nakata
  • Publication number: 20100259734
    Abstract: A cooling arrangement is described and includes a heat sink having a first thermal contact surface, an object having a second thermal contact surface and a resilient wall. The first thermal contact surface and the second thermal contact surface face each other and define a gap. The resilient wall is part of an enclosure that surrounds a space at least comprising the gap, and the cooling arrangement includes a facility to maintain a pressure difference between the space and an environment of the cooling arrangement. Additionally, a lithographic apparatus comprising such a cooling arrangement is described.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 14, 2010
    Applicant: ASML Netherlands B.V
    Inventors: Bastiaan Andreas Wilhelmus Hubertus KNARREN, Raymond Turk, Allard Eelco Kooiker, Nico Antonius Johannes Hubertus Boonen
  • Publication number: 20100243872
    Abstract: A semiconductor device includes: a semiconductor element having an imaging function, one surface of which serves as a light-receiving surface; a package having a recess containing the semiconductor element with the light-receiving surface facing outward; a light-transmitting plate closing the recess of the package containing the semiconductor element; a conductor provided at the package, electrically connected to the semiconductor element, and electrically connected to an external circuit; a heat conductive member provided to protrude from another surface of the semiconductor element; and a printed circuit board on which the external circuit is provided, on which the semiconductor element is mounted in electrical connection with the external circuit, and which is formed with an opening to serve as a clearance for the heat conductive member.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 30, 2010
    Inventor: Ryosuke AMANO
  • Patent number: 7800048
    Abstract: A system and a method for determining a change of temperature of a SBT pixel element are provided. The method includes determining a first value indicating an amount of surface charge of the SBT pixel element due to a spontaneous polarization of the SBT pixel element at a first time. The method further includes determining a second value indicating an amount of surface charge of the SBT pixel element due to a spontaneous polarization of the SBT pixel element at a second time. The method further includes determining a third value proportional to a difference between the first value and the second value. The method further includes determining a fourth value indicative of the change of temperature of the SBT pixel element based on the third value. The method further includes storing the fourth value indicative of the change of temperature of the SBT pixel element in a memory device.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: September 21, 2010
    Assignee: Delphi Technologies, Inc.
    Inventor: Joseph V. Mantese
  • Publication number: 20100219341
    Abstract: A power and energy (PE) meter includes a sensor head comprising a sensor which absorbs EM radiation that impinges on it, and a heat sink with which the sensor is in thermal contact. The heat sink includes a through-hole behind the sensor which allows at least some of the EM radiation which is not absorbed by the sensor to pass through the heat sink without being absorbed. A means of applying mechanical pressure is preferably employed to hold the sensor in thermal contact with the heat sink. A capture head and shroud may be mounted behind and physically separate from the sensor head, and arranged to absorb at least some of the radiation which is not absorbed by the sensor head.
    Type: Application
    Filed: August 24, 2009
    Publication date: September 2, 2010
    Inventors: JAMES D. PARSONS, Andrew D. Devey
  • Patent number: 7750287
    Abstract: A temperature control apparatus is provided which may control temperature of an optical component that operates upon receipt of light from a light source. The apparatus may include a light quantity detector which detects a quantity of light based on the light source; and a temperature regulator which performs regulating operation for regulating the temperature of the optical component on the basis of the light quantity detected by the light quantity detector.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 6, 2010
    Assignee: Sony Corporation
    Inventor: Koji Okamoto
  • Publication number: 20100153014
    Abstract: Apparatus and methods for estimating a downhole property are provided. The apparatus may include a downhole tool having a predetermined temperature calibration based at least in part on an expected downhole temperature and a temperature controller in communication with the downhole tool that maintains a downhole tool temperature substantially within the predetermined temperature calibration. A method may include conveying a downhole tool having a predetermined temperature calibration based at least in part on an expected downhole temperature in a well borehole and adjusting the temperature of the downhole tool during downhole operation to maintain a downhole tool temperature substantially within the predetermined temperature calibration.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Tobias Kischkat, Ansgar Cartellieri