Patent application number | Description | Published |
20110285970 | PROJECTOR - A projector includes: a reflection type light modulation device which modulates received light according to image information and reflects the modulated light; a reflection type polarization plate which separates both of light supplied to the reflection type light modulation device and light modulated by the reflection type light modulation device into respective polarized lights; and a temperature measuring member which measures the temperature of the reflection type light modulation device, wherein the temperature measuring member is disposed in the rear side of the reflection type light modulation device. | 11-24-2011 |
20110310355 | PROJECTOR - A projector includes: a plurality of reflection type light modulation devices which modulates a corresponding color light; a color synthesize optical device which has a plurality of light entrance side surfaces and a crossing surface to combine the received color lights; a heat sink which has a base attached to the corresponding reflection type light modulation device, and a fin protruding from the base and extending in a direction crossing the crossing end surface; and a duct member disposed at a position opposed to the crossing surface to supply introduced air toward the heat sink, wherein the duct member includes a first outlet section disposed opposed to the fin such that the introduced air can be supplied toward the base through the first outlet section, and a second outlet section through which the introduced air is supplied in the extending direction of the fin. | 12-22-2011 |
20130002971 | PROJECTOR - A projector has plural liquid crystal light valves each of which modulates color light, a cross dichroic prism which combines the color lights modulated by the plural liquid crystal light valves, and a projection lens which projects the light combined by the cross dichroic prism. The projector includes: a holding unit which holds the liquid crystal light valve; and a supporting member having a body unit supported to the cross dichroic prism and first plate-like portions which protrude from the body unit and support the holding unit. The first plate-like portions are inclined from a vertical plane including an optical axis of the liquid crystal light valve. | 01-03-2013 |
20140036237 | OPTICAL DEVICE, PROJECTOR, AND METHOD OF MANUFACTURING OPTICAL DEVICE - An optical device includes a plurality of light modulators modulating a plurality of incident color lights with respect to each color light, a light combining optical unit having a plurality of light incident surfaces that the plurality of modulated color lights respectively enter, and combining the plurality of entering color lights, a holding part holding the light modulator, and a supporting part loosely fitting and supporting the holding part, and disposed in a location facing the light incident surface of the light combining optical unit, wherein the supporting part has an extending part extending in a direction away from the light incident surface, and a locking part having a first slope is provided in an end part in an extension direction of the extending part. | 02-06-2014 |
20150070660 | PROJECTOR - A projector includes a light source, a light control apparatus having a light shield portion that shields light emitted from the light source, the light control apparatus adjusting the amount of light that passes therethrough, an optical element that is disposed on the light exiting side of the light shield portion and optically converts light incident on the optical element, a cooling fan that sends cooling air, and a duct that guides the cooling air sent from the cooling fan to the light shield portion and the optical element which are the targets to be cooled, wherein the duct has a blowoff port off which the guided cooling air is blown toward each target to be cooled, and the light shield portion changes the amount of covered blowoff port in accordance with the amount of light that the light shield portion shields. | 03-12-2015 |
Patent application number | Description | Published |
20100072502 | LIGHT-EMITTING DIODE - A light-emitting diode includes a circuit board, a pair of electrodes provided on the circuit board, at least one light-emitting diode element electrically connected to the pair of electrodes, a central electrode for heat-dissipation, provided between the pair of electrodes on the circuit board, and a heat-dissipation plate disposed on the central electrode for heat-dissipation and including a reflection surface. The central electrode for heat-dissipation includes an upper central electrode disposed on the upper surface of the circuit board and a lower central electrode disposed on the lower surface of the circuit board and the upper central electrode thermally connected to the lower central electrode. | 03-25-2010 |
20100134043 | LIGHTING DEVICE - In a lighting device, a first LED is formed by sealing a blue LED element by a first resin, the first resin having a first phosphor included in the first resin so as to raise a correlation color temperature of an emitted light color; and a second LED is formed by sealing a blue LED element by a second resin, the second resin having a second phosphor included in the second resin so as to lower a correlation color temperature of an emitted light color. The lighting device emits light from white light of a color having a first correlation color temperature to white light of a color having a second correlation color temperature, and the first correlation color temperature is higher than the second correlation color temperature. Consequently, various tones of white light can be more easily adjusted and controlled over a long period. | 06-03-2010 |
20100320483 | LIGHT-EMITTING DIODE APPARATUS - An LED apparatus includes a base having thermal conductivity, an insulative substrate provided on one surface of the base and including electrodes provided on a surface of the substrate, at least one base-mounting area that is an exposed part of the base, exposed within a pass-through hole provided in the substrate, a plurality of LED elements mounted on the base in the base-mounting area and some of the LED elements in a unit electrically connected to the electrodes in series, a plurality of the units are electrically connected in parallel, and a frame disposed to surround the base-mounting area and configured to form a light-emitting area. | 12-23-2010 |
20110019420 | LIGHT-EMITTING DIODE APPARATUS - An LED light source apparatus comprises a circular base having thermal conductivity, an insulative substrate concentric with the base and including a pass-through hole provided to pass through an upper surface and a lower surface of the substrate, at least one mounting area formed having a central portion of an upper surface of the base exposed from the pass-through hole of the substrate, and a plurality of LED elements mounted on the mounting area and electrically connected to electrodes provided on the upper surface of the substrate, the pass-through hole being formed in a circular shape concentric with the base and the substrate. | 01-27-2011 |
Patent application number | Description | Published |
20110242500 | PROJECTOR - A projector includes: a cooling device which supplies cooling air to a cooling target, wherein the cooling device includes a plurality of cooling fans each of which discharges cooling air, and a plurality of ducts each one end of which is connected with the corresponding one of the plural cooling fans to introduce the cooling air toward the cooling target in directions different from each other, and the plural ducts communicate with each other at the other end and have an outlet port through which the cooling air flows out. | 10-06-2011 |
20120013853 | PROJECTOR - A projector includes: a plurality of light modulating devices; a light combining optical device having a plurality of light incidence planes that faced a corresponding one of the light modulating devices, the light combining optical device configured to combine the color lights modulated by the plurality of light modulating devices; and fixing members each having a plate-like base in which an opening is formed, the fixing members configured to fix the light modulating devices to the light combining optical device, the light modulating devices are fixed to the fixing members in a state in which the light modulating devices are inserted in the openings. | 01-19-2012 |
20120033188 | PROJECTOR - A projector includes an optical element and a cooling device configured to supply cooling air along the surface of the optical element. The cooling device supplies the cooling air in two supply directions crossing each other and extending from one edge to the other edge of two opposed edges of the optical element. | 02-09-2012 |
20130148086 | PROJECTOR - A projector includes a light source unit, a light modulator that modulates light exited from the light source unit, a polarizer or a wave plate provided on a light incident side of the light modulator, a cooling unit that supplies cooling air to the light incident side of the light modulator, and a turbulent flow plate disposed between the light modulator and the polarizer or the wave plate in a path along which the cooling air from the cooling unit flows toward a light incident surface of the light modulator, the turbulent flow plate having a fin that tapers from a base end toward a tip. | 06-13-2013 |
20140104585 | PROJECTOR - A projector ( | 04-17-2014 |
20140118708 | PROJECTOR - A projector ( | 05-01-2014 |
20150070660 | PROJECTOR - A projector includes a light source, a light control apparatus having a light shield portion that shields light emitted from the light source, the light control apparatus adjusting the amount of light that passes therethrough, an optical element that is disposed on the light exiting side of the light shield portion and optically converts light incident on the optical element, a cooling fan that sends cooling air, and a duct that guides the cooling air sent from the cooling fan to the light shield portion and the optical element which are the targets to be cooled, wherein the duct has a blowoff port off which the guided cooling air is blown toward each target to be cooled, and the light shield portion changes the amount of covered blowoff port in accordance with the amount of light that the light shield portion shields. | 03-12-2015 |
20150192845 | PROJECTOR - A projector includes a light source unit, a light modulator that modulates light exited from the light source unit, a polarizer or a wave plate provided on the light modulator, a cooling unit that supplies cooling air to the light modulator, and a turbulent flow plate disposed between the light modulator and the polarizer or the wave plate in a path along which the cooling air from the cooling unit flows toward the light modulator, the turbulent flow plate having a fin that tapers from a base end toward a tip. | 07-09-2015 |
Patent application number | Description | Published |
20080280752 | Catalyst powder production method, catalyst powder and catalyst layer in fuel cell - A catalyst powder production method for constructing a catalyst layer in a fuel cell includes: forming a mixture that contains an electrolyte, a pore-forming material, and a catalyst-supporting particle that supports a catalyst; producing a composite powder in which the catalyst-supporting particle and the electrolyte are attached to a periphery of the pore-forming material by using the mixture; and producing the catalyst powder in the form of hollow particle by removing the pore-forming material from the composite powder. | 11-13-2008 |
20100003567 | Fuel cell - A fuel cell includes an electrolyte membrane, a cathode electrode layer disposed at a surface of the electrolyte membrane, and an anode electrode layer disposed at a surface of the electrolyte membrane opposite to a surface facing the cathode electrode layer. At least one of the cathode electrode layer and the anode electrode layer includes a first catalyst layer disposed at an interface with the electrolyte membrane, and a second catalyst layer disposed at a surface of the first catalyst layer opposite to a surface facing the electrolyte membrane. The first catalyst layer is configured to contain a catalyst not supported on a carrier and not to contain a catalyst supported on a carrier. The second catalyst layer is configured to contain a catalyst supported on a carrier. | 01-07-2010 |
20100062305 | ELECTRODE CATALYST LAYER FOR FUEL CELL AND METHOD OF PRODUCING THE SAME - An electrode catalyst layer for a fuel cell includes a first region and a second region more highly water repellent than the first region. The amount of catalyst per unit area in the first region is smaller than the amount of catalyst per unit area in the second region. The electrode catalyst layer makes it possible to reduce the amount of catalyst contained in the electrode catalyst layers, while avoiding a drop in output voltage of the fuel cell. | 03-11-2010 |