Heat Resistant Or Insulating Material Patents (Class 353/56)
  • Publication number: 20150029472
    Abstract: An optical device utilized in a laser projector includes a circulatory air channel, a phosphor wheel disposed in the circulatory air channel, a thermal exchanger partially disposed in the circulatory air channel, and an air guiding component disposed in the circulatory air channel for guiding an air provided by the thermal exchanger toward the phosphor wheel. The temperature of the air passing through the phosphor wheel is lower than an environment temperature.
    Type: Application
    Filed: December 4, 2013
    Publication date: January 29, 2015
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Chia-Jui LIN, Hsiu-Ming CHANG
  • Publication number: 20140078409
    Abstract: A projection apparatus for projection in a liquid environment comprises a projection surface adapted to be positioned in the liquid environment and a projector adapted to be positioned in the liquid environment. The projector is adapted to project an image on the projection surface.
    Type: Application
    Filed: January 23, 2013
    Publication date: March 20, 2014
    Applicant: Scienstry, Inc.
    Inventor: Jiansheng Wang
  • Patent number: 8585215
    Abstract: A projector includes: a light source, a light amount control device, an electro-optic unit, and a projection device, the light amount control device includes a light-shielding member configured to shield part of the luminous flux emitted from the light source, a holding member configured to hold the light-shielding member, the holding member is formed of a material having a coefficient of thermal conductivity lower than the coefficient of thermal conductivity of the light-shielding member, and a position changing unit configured to move or rotate in order to change the position of the light-shielding member, the light-shielding member is attached to the position changing unit via the holding member, and the light-shielding member comes into contact with the holding member via a projection provided on at least one of the light-shielding member and the holding member.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: November 19, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Hirohisa Nakano
  • Patent number: 8322867
    Abstract: A projector apparatus includes a housing having an air inlet and an air outlet, a light source device provided in the housing, an image projection unit provided in the housing and configured to emit an image projection light beam so as to project an image onto a screen, and a cooling device configured to cool the light source device and the image projecting unit. The cooling device includes a cooling passage extending from the air inlet to the air outlet, and a fan configured to suck in outside air from the air inlet and to exhaust the outside air passing through the cooling passage, out of the housing from the air outlet. The air filter section includes a cylindrical filter body, a filter support member configured to support the filter body, and a rotating unit configured to rotate the filter support member.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: December 4, 2012
    Assignee: Sony Corporation
    Inventor: Takanao Komori
  • Patent number: 8251522
    Abstract: A light modulator includes: a holding member having a frame disposed around an opening; and a light modulation panel formed in such a way that the edge thereof is held by the frame and the outer surface of the portion corresponding to the opening is flush with the outer surface of the frame or positioned outside the outer surface of the frame.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: August 28, 2012
    Assignee: Sony Corporation
    Inventor: Atsushi Oda
  • Patent number: 8231229
    Abstract: A mounting structure for a temperature sensor, which detects the temperature of a wall surface. The mounting structure includes a groove formed in the wall surface and having an inlet from which the temperature sensor is inserted. The temperature sensor includes a main body, which has a temperature detection surface that detects the temperature of the wall surface, and a lead wire connected to the main body. A support supports the main body. A wire bender bends the lead wire of the temperature sensor extending out of the inlet to press the temperature detection surface of the temperature sensor against the wall surface with an elastic force of the lead wire that is produced when the lead wire is bent. A stopper restricts movement of the main body of the temperature sensor.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 31, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Toshimasa Kanbara, Taichi Yoshimura
  • Patent number: 8128235
    Abstract: An illuminating device adapted to a projecting apparatus including a lamp module, a power module, and a fan is provided. The lamp module is separately disposed in the projecting apparatus. The lamp module has a lamp, an igniting module and a plate. The igniting module is capable of generating a high voltage signal to drive the lamp. The plate is disposed between the lamp and the igniting module for shielding radiating heat generated by the lamp. The power module is capable of generating a low voltage signal transmitted to the igniting module through a low voltage power line. The igniting module transforms the low voltage signal into the high voltage signal to drive the lamp. The fan is disposed at a first side of the lamp for cooling the lamp.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: March 6, 2012
    Assignee: Coretronic Corporation
    Inventors: Shen-Huei Wang, Wei-Cheng Lo, Shang-Hsuang Wu
  • Patent number: 8128236
    Abstract: Disclosed is an image projecting apparatus having a cooling device, which cools heat generated from a plurality of light sources respectively emitting light of different colors and heat generated from a display device simultaneously, while effectively dispersing the heat. The image projecting apparatus includes a projecting system which projects light; a display device disposed in series with the projecting system; an optical system disposed in parallel with the projecting system, and including a plurality of light sources which transmit the light to the display device and generate heat when the light is transmitted to the display device; a heat dissipation device disposed at an outer edge of the optical system which dissipates the heat generated from the plurality of light sources; and a cooling fan disposed opposite to the display device, which inhales air and discharges the air to the heat dissipation device.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: March 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Sub Kim, Sang Jun Choi, Byung Jo Kang
  • Patent number: 8092027
    Abstract: A portable electronic device with micro-projecting module includes a shell body, a micro-projecting module, a heat-conducting plate and a supporting stand. The shell body has a front lateral plate and a bottom lateral plate adjoining the front lateral plate. The front lateral plate has a front through hole, while the bottom lateral plate has a bottom through hole. The micro-projecting module is arranged in the shell body and has a lens exposing to an outside of the shell body from the front through hole. The heat-conducting plate is arranged in the shell body and is positioned between the micro-projecting module and the bottom through hole. In the meantime, the heat-conducting plate has a heat-absorbing face contacting the micro-projecting module and a heat-dissipating face abutted against the bottom through hole.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: January 10, 2012
    Inventor: Yi-Fang Chuang
  • Patent number: 8057048
    Abstract: A projector includes an optical arrangement and a cooling arrangement. The optical arrangement includes a light source, a filtering component, a light modulation component and a projection lens. The filtering component filters the light emitted by the light source. The light modulation component modulates the light filtered by the filtering component to form an image. The projection lens projects the image formed by the light modulation component. The cooling arrangement is arranged relative to the optical arrangement to cool the optical arrangement. The cooling arrangement includes a blower, an air duct and a heat sink. The blower blows cooling air. The air duct guides the cooling air from the blower to the filtering component along an cooling air path. The heat sink is disposed in the cooling air path within the air duct and fixedly attached to the light modulation component to thermally contact with the light modulation component.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: November 15, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventor: Masakazu Suzuki
  • Patent number: 8057047
    Abstract: A heat radiation structure for a portable micro projector that enables efficient radiation of heat generated therein. A projector module irradiates light of high intensity using a lamp to project an image to an external screen. A thermally conductive plate having a plate-like shape, the projector module being attached to one surface of the thermally conductive plate to transfer heat generated in the projector module. A heat radiation case to which the thermally conductive plate to which the projector module is attached is coupled therein to emit the heat transferred through the thermally conductive plate outside.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: November 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Kwan Kim, Du Chang Heo, Jung Kee Lee
  • Patent number: 8042951
    Abstract: An illuminant module includes a lamp including a lampwick, a reflector and a guide cap, a lamp holder, a blower, and an axial fan. At least one portion of the lampwick is disposed in the reflector. The guide cap having a guide wall, a first air outlet, and a first air inlet is connected to the reflector and covers an opening of the reflector. The lamp holder has a space where the lamp is disposed, a second air inlet corresponding to the first one, a third air inlet adjacent to the second one, a fourth air inlet adjacent to the third one, a second air outlet corresponding to the first one, and a third air outlet adjacent to the second one. The blower outside the space is disposed at the second air inlet. The axial fan outside the space is disposed adjacent to the third and fourth air inlets.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: October 25, 2011
    Assignee: Coretronic Corporation
    Inventors: Wei-Cheng Lo, Nien-Hui Hsu
  • Patent number: 7997736
    Abstract: A projector comprises: a cooling fan for sucking ambient air through a filter; switching means for switching the operational mode of the cooling fan between a lowland mode and a highland mode; and control means adapted to obtain current fan voltage to determine the normal rpm value for that current fan voltage in reference to a highland voltage-rpm characteristic when the switching means is in the highland mode, obtain current fan rpm, and enables alarming means to issue a filter clogging alarm in the event that the current fan rpm is larger than the normal rpm value plus a predetermined value. Thus, filter clogging can be detected with precision in highlands.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: August 16, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Taichi Yoshimura, Toshimasa Kanbara, Takeshi Fujisaki
  • Patent number: 7967454
    Abstract: An electro-optic apparatus includes an electro-optic panel, a wiring board, and an integrated circuit unit. The integrated circuit unit including a heat radiating member arranged so as to overlap at least partly with the integrated circuit unit.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: June 28, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Hidekazu Hirabayashi, Tomoaki Miyashita
  • Patent number: 7946713
    Abstract: A display apparatus, comprises a filter unit 33 attached on an air inlet opening 28a, having such a filter 36 that a suction negative load generating at the air inlet opening 28a formed in an upper cabinet 3 comes to be smaller than the suction load generating at gaps 29a and 30a defined in the upper cabinet 3, when driving a cooling unit 18, for sucking an air from the upper cabinet 3 and discharging the air used for cooling into the upper cabinet 3, when cooling down optical parts, such as, display devices 15R, etc., and a polarizing plate 16R, etc., of an optic unit 9.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: May 24, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yuji Kishi, Nobuyuki Kaku
  • Patent number: 7934838
    Abstract: A projector includes a case, a separating plate, an electronic component system, a light source device and a blocking device. The case has a space defined therein. The separating plate is arranged in the case to divide the space into a first space and a second space. The electronic component system is arranged in the first space. The light source device for emitting light is arranged in the second space. The blocking device has a blocking plate which is arranged adjacent to the separating plate and controlled to be located from a first position and a second position. When the blocking plate is located at the first position, air flows from the first space into the second space. When the blocking plate is located at the second position, air in the second space is prevented from entering into the first space.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: May 3, 2011
    Assignee: Coretronic Corporation
    Inventors: Hua-Shing Chen, Chin-Tsao Chang
  • Patent number: 7896501
    Abstract: An optical engine includes a light source system for providing an incident light beam, a reflective light valve, a first case, a projection lens and a second case. The reflective light valve is disposed in the first case for receiving the incident light beam, reflecting and outputting an image light beam or a dumped light beam. The first case provides a first opening located in the light path of the dumped light beam. The projection lens is connected to the first case for receiving and projecting the image light beam to form an image. The second case intercommunicates with the first case via the first opening. The dumped light beam enters the second case through the first opening, and is reflected twice or more inside the second case. Moreover, the inner wall of the second case applies to absorb the energy of the dumped light beam.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: March 1, 2011
    Assignee: Coretronic Corporation
    Inventors: Wen-Ruei Huang, Tsung-Ching Lin
  • Publication number: 20110032489
    Abstract: Comprising a casing containing a heat insulating part, a projector as an image display unit, a screen for displaying an image issued from the projector, and cooling part (heat exchanger, compressor) for cooling the inside of the casing, the heat insulating part includes a first heat insulating part disposed in the peripheral area of the projector for insulating from heat, and a second heat insulating part disposed in the peripheral part of the screen for insulating from heat.
    Type: Application
    Filed: June 12, 2009
    Publication date: February 10, 2011
    Inventors: Takayuki Kimoto, Hirosi Kitano, Kazuya Chiba, Takaaki Tanaka
  • Patent number: 7866825
    Abstract: A blind (10) for a projector includes a bracket (20) mounted to the projector, and a folded fin (30) fixed on the bracket and covering a hot air vent of the projector. The folded fin includes a plurality of parallel fins (32) and a plurality of upper and lower tabs (34, 36) interconnecting the fins. Each of the fins defines an angle of 135 degrees with a plane defined by the lower tabs. Furthermore, a projection of each of the fins on the plane defined by the lower tabs overlaps a part of a corresponding adjacent fin. Thus, the blind can prevent a light leakage from the projector, while allow a heated airflow to be expelled out of the projector simultaneously.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: January 11, 2011
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Hui Shen, Gen-Ping Deng, Yi-Qiang Wu
  • Patent number: 7837334
    Abstract: A projector includes a transmissive heat exchange element having a transparent thermoelectric conversion layer consisting mainly of an oxide and an electrode for supplying the transparent thermoelectric conversion layer with a current, and an optical element, and cooling or heating of the optical element is performed using the transmissive heat exchange element.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: November 23, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Yoshitaka Ito
  • Patent number: 7806531
    Abstract: A projector includes: a casing having a surface; a cooling medium flowpath provided inside the casing, through which a cooling medium is allowed to flow; and a radiator in which a part of the cooling medium flowpath is arranged, the radiator being deployable by rotating with respect to the casing, and adapted to be accommodated in the casing and along the surface of the casing.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: October 5, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Makoto Zakoji, Takeshi Seto, Akira Egawa, Kunihiko Takagi
  • Patent number: 7806532
    Abstract: A projector includes a light source; a light modulating device that modulates the flux of light emitted from the light source on the basis of image information to form an optical image; a projection optical system that projects the formed optical image; and an exterior housing that accommodates the light source, the light modulating device, and the projection optical system. An opening that introduces air from the outside of the exterior housing into the inside thereof is formed in the exterior housing. An object to be cooled, a duct connecting the opening to the objects to be cooled, and a filter purifying the air introduced from the opening are provided inside the exterior housing. A cooling fan that sucks the air having been purified through the filter and sends the air to the object to be cooled are provided in the duct.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: October 5, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Hideki Takasuka
  • Patent number: 7798655
    Abstract: A projection unit 17 effectively corrects out of focus due to a temperature rise. A mirror holding mechanism of a concave mirror 25 has a mirror holder 41 and a mirror holder base 42. The concave mirror 25 is slidably housed in the mirror holder 41. A focus correction member 57, which expands by heat, is disposed between a back face of the concave mirror 25 and reference plane S formed in the mirror holder. The concave mirror 25 and the focus correction element 57 are urged to the reference plane S by a mirror retainer spring 59.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: September 21, 2010
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Atsushi Matsuura, Shinichi Suzuki
  • Publication number: 20100188640
    Abstract: A projector includes: a light source, a light amount control device, an electro-optic unit, and a projection device, the light amount control device includes a light-shielding member configured to shield part of the luminous flux emitted from the light source, a holding member configured to hold the light-shielding member, the holding member is formed of a material having a coefficient of thermal conductivity lower than the coefficient of thermal conductivity of the light-shielding member, and a position changing unit configured to move or rotate in order to change the position of the light-shielding member, the light-shielding member is attached to the position changing unit via the holding member, and the light-shielding member comes into contact with the holding member via a projection provided on at least one of the light-shielding member and the holding member.
    Type: Application
    Filed: January 26, 2010
    Publication date: July 29, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hirohisa NAKANO
  • Patent number: 7753532
    Abstract: The present invention provides a projection type display unit including a light source, an optical unit including a light valve and a projection lens, and a cooling section for cooling the light source and the optical unit. The light source and the optical unit as well as the cooling section are incorporated in an armor cabinet. A highly heat conductive sheet metal component part is disposed in a space between a lamp as the light source and the armor cabinet.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: July 13, 2010
    Assignee: Sony Corporation
    Inventors: Takashi Nasu, Takuji Ohkubo, Masahiro Saito, Yoshihisa Wada
  • Patent number: 7726820
    Abstract: A cabinet of a projection type display unit includes a base cabinet on which main component parts are mounted, and a top cover made from sheet metal which is mounted so as to cover the base cabinet, wherein a rear face portion of the top cover is formed in the shape of a curved surface being laid-down U-shaped in side view. The U-shaped curved surface is formed on an ergonomic basis, so that the rear face portion can be gripped securely even with one hand. On the back side of the top cover, bosses are integrally formed by use of a resin which is a different material from the sheet metal of the top cover, and the base cabinet and the top cover are fixed by fastening screws to the bosses from the base cabinet side.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: June 1, 2010
    Assignee: Sony Corporation
    Inventors: Nobuyuki Hara, Shinichi Ueda, Makoto Nagata, Yoshihisa Wada, Dai Yoneya, Osamu Onodera
  • Patent number: 7722191
    Abstract: A projector comprises a case, an illuminant heat source, a thermal module, and an equalizing temperature module. The equalizing temperature module is disposed between the illuminant heat source and the thermal module. When the fluid flows from the illuminant heat source to the equalizing temperature module, the fluid flows through a relative high temperature region more than that of flowing through a relative low temperature region. The equalizing temperature module at least comprises a heat pipe and a plurality of heat sinks. The heat pipe has a first end located in the relative low temperature region and a second end located in the relative high temperature region. The heat pipe transfers heat from the relative high temperature region to the relative low temperature region by a cold fluid in the heat pipe. The plurality of heat sinks are disposed on the heat pipe to increase the area of heat conduction.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: May 25, 2010
    Assignee: Benq Corporation
    Inventor: Chi-Hung Hsiao
  • Patent number: 7703927
    Abstract: A liquid crystal projector apparatus has a liquid crystal unit having a liquid crystal panel for modulating light, an incident side polarizing plate and an exit side polarizing plate disposed in front of and behind the liquid crystal panel along the optical axis, respectively, a first holder member for holding the liquid crystal unit, a first heat exchanger disposed in close proximity to the first holder member for dissipating heat generated by the liquid crystal unit and then conducted to the first holder member using a coolant liquid which passes through a first channel formed inside the first heat exchanger, a pump for circulating the coolant liquid, and a radiator for cooling the coolant liquid.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: April 27, 2010
    Assignee: NEC Viewtechnology, Ltd.
    Inventor: Motoyasu Utsunomiya
  • Publication number: 20100091251
    Abstract: A heat dissipating device for an electronic apparatus includes an enclosure that houses a component of the electronic apparatus which becomes hot when the electronic apparatus is in use, the enclosure being made of a heat conductive material capable of dissipating heat in the enclosure to the outside, a heat receiving member provided between the component and the enclosure and capable of receiving heat from the component and transferring the received heat, a heat insulating member provided in contact with a side of the heat receiving member opposite from the component and configured to prevent transmission of the heat received by the heat receiving member, and a heat diffusing member provided between the heat insulating member and the enclosure in contact with both the heat insulating member and the enclosure and capable of receiving heat from the heat insulating member and diffusing the received heat into the enclosure.
    Type: Application
    Filed: December 8, 2009
    Publication date: April 15, 2010
    Inventors: Hiroko FUJIBAYASHI, Daiki Fujiwara, Hiroyuki Meguro, Noriyuki Hagino
  • Patent number: 7695160
    Abstract: A projector light source which facilitates molding of a reflector for obtaining a complicated reflecting surface and provides an improved cooling efficiency, which is characterized by molding the reflector of the light source using heat resistant plastic mixed with a high heat conductive material, whereby a molding accuracy is drastically improved compared to a heat resistant glass reflector, and a highly efficient light source is implemented by increasing a degree of design freedom using a high-order non-spherical reflecting surface. Furthermore, heat conductivity is increased by the use of a high heat conductive material for the reflector and heat dissipation to an outside is facilitated.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: April 13, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Koji Hirata, Ryuji Kurihara, Kobuo Masuoka
  • Publication number: 20100066980
    Abstract: There is disclosed a projector capable of efficiently cooling an optical element while decreasing the generation of noise as much as possible. A projector P includes a main body 1 provided with a light source 2, an optical element 4 (liquid crystal panels 5, 6 and 7, polarization plates 8A, 8B and a prism 25) which processes (modulates) light emitted from this light source 2 in accordance with image information and a projection lens 9 which projects a modulated projection optical image onto a screen, and further includes a cooling apparatus 10 in which a compressor 12, a radiator 14, a capillary tube 16 (a pressure reducing unit) and an evaporator 18 provided in the main body 1 constitute a refrigerant circuit, and air subjected to heat exchange between the air and the evaporator 18 is supplied to the liquid crystal panels 5, 6 and 7 to cool the panels.
    Type: Application
    Filed: October 23, 2007
    Publication date: March 18, 2010
    Inventors: Masaki Tsuchiya, Naoyuki Uchiyama
  • Patent number: 7556385
    Abstract: A projector for image projection, includes: an optical element included by an optical system to project an image; a tripod that supports the projector; and a tripod-fixing part that is connected with the optical element and fixes the tripod, wherein the tripod and tripod-fixing part are each constituted by a heat-conductive member.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: July 7, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Akira Kitahara
  • Patent number: 7553029
    Abstract: A structure of a projector engine section includes: an engine section that projects through a projector lens an optical image formed by modulating a light flux depending on image information; a circuit board that has a digital mirror device control circuit and attached to the engine section; a heat sink that faces the circuit board so as to prevent a heat generation due to the fullness of heat in the engine section; and a gasket plate that is made of a sheet metal and is inserted into the space between the circuit board and the heat sink, such that the gasket plate elastically contacts with a ground pattern of the circuit board and the heat sink.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: June 30, 2009
    Assignee: Funai Electric Co., Ltd.
    Inventor: Naohito Doi
  • Publication number: 20090141245
    Abstract: A projection device includes: a projector unit that has at least a light source and a projection optical system housed in a chassis; a control unit that is assembled with a chassis separate from the chassis of the projector unit; and a rotation support member that rotatably supports the projector unit and the control unit around a rotation axis that extends perpendicular to a surface of the chassis of the projector unit and a surface of the chassis of the control unit, with these surfaces facing to one another.
    Type: Application
    Filed: June 29, 2006
    Publication date: June 4, 2009
    Applicant: NIKON CORPORATION
    Inventors: Hirotake Nozaki, Nobuhiro Fujinawa, Akira Ohmura
  • Publication number: 20090066918
    Abstract: A projector includes a case, a separating plate, an electronic component system, a light source device and a blocking device. The case has a space defined therein. The separating plate is arranged in the case to divide the space into a first space and a second space. The electronic component system is arranged in the first space. The light source device for emitting light is arranged in the second space. The blocking device has a blocking plate which is arranged adjacent to the separating plate and controlled to be located from a first position and a second position. When the blocking plate is located at the first position, air flows from the first space into the second space. When the blocking plate is located at the second position, air in the second space is prevented from entering into the first space.
    Type: Application
    Filed: June 19, 2008
    Publication date: March 12, 2009
    Inventors: Hua-Shing Chen, Chin-Tsao Chang
  • Patent number: 7434946
    Abstract: Disclosed herein is an illumination system for use in display systems employing spatial light modulators. The illumination system comprises a fastening mechanism for securing the bonding of the walls of the light integrator of the illumination system. A heat dissipation mechanism can be alternatively provided for reducing the temperature of the illumination system by dissipating the heat thereof.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: October 14, 2008
    Assignee: Texas Instruments Incorporated
    Inventor: Andrew Huibers
  • Patent number: 7384153
    Abstract: A light source device is provided comprising: a light-emitting element; a support member having the light-emitting element flip chip mounted thereto; and a thermally conductive filling agent between the light-emitting element and the support member. By injecting the filling agent between the light-emitting element and the support member, the thermal conduction is supplemented by the filling agent. As such, heat generated by the light-emitting element can be efficiently removed outside the light source device.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: June 10, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Norio Nakamura
  • Patent number: 7358657
    Abstract: A lamp assembly includes a reflector body having an integral crimping portion that extends inwardly over a channel formed in the reflector body, a seal feature arranged within the channel, a cathode assembly having an edge feature extending into the channel, and a resilient member held in a state of compression between the crimping portion and a first surface of the edge feature such that an opposing second surface of the edge member is held against the sealing feature thereby creating a hermetic seal between the cathode assembly and the reflector body.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 15, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John M. Koelger, P. Guy Howard
  • Patent number: 7320523
    Abstract: A liquid crystal panel in which temperature rise of the liquid crystal panel is sufficiently restrained by cooling the panel by means of a cooling liquid, and exudation of the cooling liquid toward the liquid crystal material is prevented. Disclosed are cover members attached to the liquid crystal panel that form cavities on the light entrance and exit sides of the panel. The cover members are such that a sealed portion of the liquid crystal material is not in contact with the cavities. The cover members are light transmitting. The cavities are filled with the cooling liquid.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: January 22, 2008
    Assignee: Sony Corporation
    Inventors: Takuji Ohkubo, Dai Yoneya, Yoshiro Asano, Hiroaki Fujii
  • Patent number: 7316487
    Abstract: A projector light source which facilitates molding of a reflector for obtaining a complicated reflecting surface and provides an improved cooling efficiency, which is characterized by molding the reflector of the light source using heat resistant plastic mixed with a high heat conductive material, whereby a molding accuracy is drastically improved compared to a heat resistant glass reflector, and a highly efficient light source is implemented by increasing a degree of design freedom using a high-order non-spherical reflecting surface. Furthermore, heat conductivity is increased by the use of a high heat conductive material for the reflector and heat dissipation to an outside is facilitated.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: January 8, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Koji Hirata, Ryuji Kurihara, Nobuo Masuoka
  • Patent number: 7309130
    Abstract: A fixture for a projection system that includes a lamp, a light valve and a projection lens mainly comprises a lamp frame and an optical engine main body, wherein the lamp frame contains a chamber for containing the optical engine main body. The optical engine main body includes an optical engine seat and an optical engine upper cover. One end of the optical engine seat is connected to the lamp frame while another end thereof is connected to the optical engine upper cover. The optical engine seat is made of a heat-insulating material for preventing the heat of the lamp from conducting to the optical engine upper cover for providing better image quality of the projection system, extending the lifetime of the light valve and the projection lens, reducing the weight and the cost of the whole projection system.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: December 18, 2007
    Assignee: Coretronic Corporation
    Inventors: I-Hsien Liu, Chien-Hung Lee
  • Patent number: 7264359
    Abstract: A cooling apparatus includes a heat receiving casing thermally joined to a heating object directly or indirectly, a first device having hoses which communicate inside of the heat receiving casing, a fluid medium inside the heat receiving casing and in the hoses. The cooling apparatus also includes a solution sending pump circulating the fluid medium provided inside the heat receiving casing, and a second device having a radiator for cooling the circulated fluid medium, and a radiating fan.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: September 4, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shoji Kawahara, Shuu Nanba
  • Patent number: 7244029
    Abstract: A laser projector including a cooling system having an internal wall dividing the housing into a first compartment containing the optical components and a second compartment containing the electrical components, wherein the internal wall has a first face receiving the optical components and a second face receiving the electrical components thermally isolated from the first face. The internal wall includes a cooling channel and a fan directs air through the channel to maintain the optical components below a maximum operating temperature. The internal wall in one disclosed embodiment includes two parallel wall members each having a plurality of parallel channels, a thermoelectric cooling element located on the wall adjacent the first compartment, a sensor is located in the first compartment and a control maintains a temperature below ambient in the first chamber.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: July 17, 2007
    Assignee: Virtek Vision International Inc.
    Inventors: Krystian Goik, Timothy I. Fillion
  • Patent number: 7226170
    Abstract: A projector with air cleaning functionality is equipped with a negative ion generator. The negative ion generator is positioned along a cooling airflow route of the projector and is adjacent to a lamp module. A photo-catalyst sheet, which is stimulated by ultraviolet light emitted from the lamp module, can produce the negative ions quickly. The air, which is circulated along the cooling airflow route, carries the negative ions out of the projector so as to clean air in the surroundings.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: June 5, 2007
    Assignee: Coretronic Corporation
    Inventor: Nien-Hui Hsu
  • Patent number: 7148945
    Abstract: An optical device and a projector having the optical device is provided, which have a liquid-crystal display having, on an exit side, a first exit polarizer plate and a second exit polarizer plate arranged thermally insulated from each other and separated in an optical axis direction, the first exit polarizer plate being bonded on a first heat conductor plate which is bonded on an incident surface of a color-combining optical unit while the second exit polarizer plate is bonded on a second heat conductor plate held by a polarization-plate holding frame. By heat release through respective independent routes, it is possible to suppress the deterioration due to the temperature rise on the exit polarizer plates and liquid-crystal display.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: December 12, 2006
    Assignee: Seiko Epson Corporation
    Inventor: Yoshiyuki Yanagisawa
  • Patent number: 7128421
    Abstract: A projection apparatus is formed employing a solid state light source having either an associated or integrated sensor to monitor a thermal condition of a region of the solid state light source. The sensor is equipped to output a signal indicative of the thermal condition of the monitored region. In various embodiments, a controller is also provided to conditionally initiate one or more thermal management actions based at least in part on the thermal condition of the region as indicated by the signal.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: October 31, 2006
    Assignee: InFocus Corporation
    Inventors: David E. Slobodin, T. Scott Engle
  • Patent number: 7073911
    Abstract: An optical apparatus includes a color synthesizing prism, a plurality of exit-side polarizer plates which are respectively arranged on the light entrance side faces of the color synthesizing prism through entrance-side heat conduction plates, a plurality of liquid-crystal display devices which are respectively arranged on the entrance sides of the plurality of exit-side polarizer plates, and a plurality of entrance-side polarizer plates which are respectively arranged on the entrance sides of the plurality of liquid-crystal display devices. The entrance-side heat conduction plate which is located in the optical path of colored light generating the largest quantity of heat can be arranged in heat insulation from the entrance-side heat conduction plates which are located in the optical paths of the other colored lights, and it can be joined to an armoring case through heat conduction members.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: July 11, 2006
    Assignee: Seiko Epson Corporation
    Inventor: Yoshiyuki Yanagisawa
  • Patent number: 7063423
    Abstract: A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape corresponding to the profile of a reflecting portion (122) of the reflector (12). A cooling channel for passing a cooling air is formed between the plate body (19) and the reflector (12). The width of the cooling channel in a direction along an optical axis of the light source lamp (11) is minimized at a part near a neck portion (121) of the reflecting portion (122) and enlarged toward the peripheral edge of the reflecting portion (122) of the reflector (12).
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: June 20, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Motoyuki Fujimori, Takeshi Takezawa, Hiroyuki Meguro, Masakazu Kitamura
  • Patent number: RE43321
    Abstract: A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape corresponding to the profile of a reflecting portion (122) of the reflector (12). A cooling channel for passing a cooling air is formed between the plate body (19) and the reflector (12). The width of the cooling channel in a direction along an optical axis of the light source lamp (11) is minimized at a part near a neck portion (121) of the reflecting portion (122) and enlarged toward the peripheral edge of the reflecting portion (122) of the reflector (12).
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: April 24, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Motoyuki Fujimori, Takeshi Takezawa, Hiroyuki Meguro, Masakazu Kitamura
  • Patent number: RE43777
    Abstract: A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape corresponding to the profile of a reflecting portion (122) of the reflector (12). A cooling channel for passing a cooling air is formed between the plate body (19) and the reflector (12). The width of the cooling channel in a direction along an optical axis of the light source lamp (11) is minimized at a part near a neck portion (121) of the reflecting portion (122) and enlarged toward the peripheral edge of the reflecting portion (122) of the reflector (12).
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: October 30, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Motoyuki Fujimori, Takeshi Takezawa, Hiroyuki Meguro, Masakazu Kitamura