Reflector Patents (Class 362/341)
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Patent number: 7213920Abstract: According to the present invention, there is provided an image display device including a non-luminous reflection type spatial light modulating element, illuminating system to illuminate the reflection type spatial light modulating element and a projection lens and in which light from a light source (2) illuminates the reflection type spatial light modulating elements (14, 15) via first and second fly-eye integrators (9, 10). An unnecessary part, not modulated, of the light reflected by the reflection spatial light modulating elements (14, 15) and further by a reflector (4) for recycling. Since the fly-eye integrators (9, 10) are displaced in relation to their optical axes, it is possible to utilize the light with an improved efficiency and prevent any nonuniform illumination from taking place.Type: GrantFiled: November 28, 2003Date of Patent: May 8, 2007Assignee: Sony CorporationInventors: Hiroaki Matsui, Tomoya Yano, Yukio Ohmura
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Patent number: 7210823Abstract: A lamp reflector having a substrate prepared by injection molding a bulk molding compound (BMC). The BMC has a matrix resin mainly including: an unsaturated polyester resin and glass fiber as a reinforcing inorganic filler, and hollow glass spheres in an amount of 10 to 40% by volume based on the BMC as an additional inorganic filler.Type: GrantFiled: October 21, 2003Date of Patent: May 1, 2007Assignee: Koito Manufacturing Co., Ltd.Inventors: Hisayoshi Daichou, Daisuke Mochizuki
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Patent number: 7195667Abstract: A composition for the manufacture of an opaque silvery coating on a glass surface is provided. The composition comprises a mixture of at least two metal powders. The metal powder mixture contains carbonyl iron and aluminum, and a carrier liquid for forming a suspension of the metal powder mixture. A method for manufacturing an opaque silvery coating for a lamp having a glass envelope is also provided. In the method, a suspension comprising a mixture of carbonyl iron and aluminum powders in a carrier liquid is applied onto the envelope of the lamp. The suspension is dried, and thereafter the composition remaining from the suspension is burned at a temperature above 500° C. A lamp with a glass envelope and a single layer opaque coating covering at least a part of the glass envelope is also disclosed. The opaque coating comprises 50 to 80 weight % carbonyl iron and 20 to 50 weight % elementary aluminum.Type: GrantFiled: June 7, 2004Date of Patent: March 27, 2007Assignee: General Electric CompanyInventors: István Mudra, Péter Szemere
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Patent number: 7188975Abstract: A light fixture is shown and described is for illuminating building surfaces or portions thereof, comprising a generally cup-shaped arcuate reflector (10) having an interior (21) provided with a lamp emitting light at least partially reflected or dispersed by an inner surface (27) of the reflector to the building surface or portion to be illuminated, the inner surface of the reflector being subdivided into a plurality of structured segments (15a, 15b, 15c, 15d, 32, 38). The novelty is that the segments each have a surface (31a, 31b, 31c, 36, 37, 40) that is curved toward the interior.Type: GrantFiled: September 14, 2004Date of Patent: March 13, 2007Assignee: Erco Leuchten GmbHInventor: Markus Görres
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Patent number: 7178947Abstract: A lighting device has a Fresnel mirror with a reflective surface for reflecting light emitted by a light source onto a target. The reflective surface is defined by an elliptical curve. The light source is disposed at approximately the first focal point of an ellipse formed by the elliptical curve. A mechanism adjusts the functional relationship between the Fresnel mirror and the light source so that the light source can be positioned approximately at the first focal point of the ellipse.Type: GrantFiled: June 4, 2004Date of Patent: February 20, 2007Inventor: Dale Marks
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Patent number: 7176607Abstract: The present invention provides a light reflecting polymeric composition that includes at least one halogenated-flame-retardant-additive-free polymer having dispersed therein a pigment package including a combination of Sb2O3 and TiO2. The Sb2O3 and TiO2 preferably have an average particle size within the range of from about 0.05 ?m to about 1.0 ?m, and more preferably about 0.2 ?m. When used in combination, the Sb2O3 and TiO2 pigments synergistically interact together to provide a polymeric composition exhibiting a reflectivity that is substantially higher than can be obtained by the use of either of the pigments alone.Type: GrantFiled: November 24, 2004Date of Patent: February 13, 2007Assignee: Ferro CorporationInventors: Deenadayalu Chundury, Richard Abrams, Ronald M. Harris, Mir Ali, Theophilus G. McGee, II, Susan T. Schmidt
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Patent number: 7172319Abstract: A reflector for a light source, such as an LED, is provided with a shape which efficiently collects and directs energy to an illumined surface whereby almost 100% of the light is collected and distributed into a designer composite beam. The shape in one embodiment is comprised of three zones beginning with a parabolic surface of revolution at the base of the reflector, followed by a transition or straight conic zone and ending with an elliptical zone. In another embodiment the reflector shape is determined according to a transfer function which allows for arbitrary designer control of the reflected rays at each point on the reflector, which when combined with direct radiation from the source, results in a designer controlled composite beam or illumination. The device is more than 90% energy efficient and allows replacement of higher power, less energy efficient light sources with no loss in illumination intensity.Type: GrantFiled: March 30, 2005Date of Patent: February 6, 2007Assignee: Illumination Management Solutions, Inc.Inventors: Ronald G. Holder, Greg Rhoads
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Patent number: 7163299Abstract: An illumination unit for a projection image display. The illumination unit includes a light source, an integrator which converts light emitted from the light source to have uniform optical intensity, and an aspect ratio conversion unit which transmits light emitted from the integrator that does not correspond to an aspect ratio of image information back to the integrator, and converts and emits incident light to correspond to the aspect ratio of the image information.Type: GrantFiled: April 16, 2004Date of Patent: January 16, 2007Assignee: Samsung Electronics Co., Ltd.Inventor: Young-chol Lee
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Patent number: 7160004Abstract: An LED (light emitting diode) illumination device that can generate a non-circular light output illumination intensity pattern. The illumination source including a reflector with a conic or conic-like shape. Further, an LED is positioned at approximately 90° with respect to a central axis of the reflector.Type: GrantFiled: March 3, 2005Date of Patent: January 9, 2007Assignee: Dialight CorporationInventor: John P. Peck
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Patent number: 7157840Abstract: An illuminating device is made from a transparent hollow envelope that encloses a filler gas. The envelope has inner and outer surfaces. The illuminating device has a coating of a fluorescent material deposited on the inner surface of the transparent envelope where the fluorescent material emits light having a visible component and an ultraviolet component; and a titanium dioxide film having first and second opposing surfaces where the first surface of the titanium dioxide film is formed on the outer surface of the transparent envelope. A light transmittance of the titanium dioxide film is at least 50% for light having a wavelength of 550 nm, and the light transmitted from the fluorescent material through the transparent envelope and the first surface of the titanium dioxide film to the second surface thereof causes photocatalytic activity to be generated on the second surface of the titanium dioxide film.Type: GrantFiled: December 24, 2002Date of Patent: January 2, 2007Assignees: Kanagawa Academy of Science and Technology, Nippon Soda Co., Ltd.Inventors: Akira Fujishima, Kazuhito Hashimoto, Tomokazu Iyoda, Shigemichi Fukayama, Tetsuo Yoshimoto, Tokuyoshi Saitoh
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Patent number: 7156543Abstract: A vehicle lamp 10 comprises a light source portion 50 and a plastic decorative member 60 in a lamp chamber 40 constituted by a body 20 and a lamp cover 30 for covering the front of the body. The decorative member has a skin layer 64 and a core layer 65 which are formed by sandwich molding; and the core layer is located in at least a portion that requires heat-resistance in the decorative member and formed of resin material greater in heat-resistance than resin material for the skin layer.Type: GrantFiled: July 1, 2004Date of Patent: January 2, 2007Assignee: Koito Manufacturing Co., Ltd.Inventors: Koichi Nakamura, Hiroshi Muramatsu, Junji Toki, Masaru Takiguchi
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Patent number: 7121694Abstract: A backlight unit with high heat transfer rate disposed under a display panel. The backlight unit includes a light source generator for generating light beams, a diffusing plate positioned between the light source generator and the display panel for scattering the light beams to the display panel, and a reflecting sheet position under the light source generator for reflecting the light beams upward. The reflecting sheet has at least one opening for increasing the heat transfer rate of the backlight unit.Type: GrantFiled: August 1, 2003Date of Patent: October 17, 2006Assignee: AU Optronics Corp.Inventors: Chin-Kun Hsieh, Chuan-Pei Yu, Han-Chou Liu
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Patent number: 7123316Abstract: A backlight module (30) includes a light source (42) for emitting light, a light guide plate (50), and a reflective cover (41). The light guide plate includes a light incidence surface (51), a light-emitting surface (53) connecting with the light incidence surface, and a bottom surface (52) opposite to the light-emitting surface. The light source faces the light incidence surface. The reflective cover includes a reflective unit having two reflective surfaces (411, 412) defining a space with a bottom. The light source is accommodated in the bottom of the space. A cross-sectional profile of the reflective surfaces is defined by an equation in a polar coordinate ?(?).Type: GrantFiled: April 28, 2006Date of Patent: October 17, 2006Assignees: Tsinghua University, Hon Hai Precision Industry Co., LTDInventors: Xing-Peng Yang, Ying-Bai Yan, Guo-Fan Jin
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Patent number: 7112916Abstract: A light emitting diode, a reflector and a platform are employed within a light source. The light emitting diode emits light exclusively from its side surfaces. The reflector has a parabolic reflective surface that collimates any portion of the light reflecting from the parabolic reflective surface. The platform supports a centering of the light emitting layer(s) of the light emitting diode on a focus point of the parabolic reflective surface.Type: GrantFiled: October 9, 2002Date of Patent: September 26, 2006Inventors: Kee Siang Goh, Boon Kheng Lee, Yee Loong Chin, Gurbir Singh
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Patent number: 7086766Abstract: A half-mirror evaporated layer is formed by spattering all over a front face of a resin substrate, and at the front faces of the reflector parts, aluminum evaporated layers are further formed to be reflecting mirror faces on the half-mirror evaporated layer, while at the front face of an extension, the half-mirror evaporated face is exposed as a half-mirror face.Type: GrantFiled: September 26, 2003Date of Patent: August 8, 2006Assignee: Koito Manufacturing Co., Ltd.Inventors: Teruaki Inaba, Hideaki Yamamoto
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Patent number: 7083306Abstract: The invention relates to a discharge lamp with a reflector (1) and an asymmetrical burner, which reflector (1) comprises at least a reflecting surface (3) and a hollow reflector neck (4), while the asymmetrical burner is partly arranged in said hollow reflector neck (4) without making contact therewith, wherein the shape and the size of the inner contour (6) of the reflecting surface (3) of the reflector (1) corresponds substantially to the contour of the asymmetrical burner, and the asymmetrical burner is centrally located in the reflector (1).Type: GrantFiled: December 12, 2002Date of Patent: August 1, 2006Assignee: Koninklijke Philips Electronics N.V.Inventors: Nicasius G. T. Van Gennip, Michael Haacke, Thomas Luce, Petrus J. M. Fransen
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Patent number: 7070301Abstract: An LED illumination unit uses a first reflector comprising a reflecting surface formed as a surface of revolution about a first revolution axis. The LED emits light about a first LED axis towards the reflecting surface of the first reflector. The first LED axis is non-parallel to the first revolution axis and the light emitting area of the first LED unit is positioned substantially at a focus of the reflecting surface. The reflector may also have two or more reflecting surfaces for collecting and directing light from two or more respective LEDs.Type: GrantFiled: November 4, 2003Date of Patent: July 4, 2006Assignee: 3M Innovative Properties CompanyInventor: Simon Magarill
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Patent number: 7070280Abstract: A method and apparatus or configuration generates light of a given polarization state (P). A polarization state-sensitive beam splitter is acted upon by light (L) at an input (E1), light (LP) of the given polarization state being output by the beam splitter (1) at a first beam splitter output (A1). Light (LS) with polarization state (S) that is perpendicular to the given state (P) is changed with respect to this state and also output. The light of the changed polarization state again acts upon the polarization state-sensitive beam splitter at the input (E1). The apparatus or configuration achieves this by having the optic input (E3) of a polarization state-changing structural element whose optic output (A3) is operationally connected to the optic input (E1) of the polarization state-sensitive beam splitter, operationally connected to the second optic output (A2).Type: GrantFiled: September 14, 2001Date of Patent: July 4, 2006Assignee: Unaxis Balzers AktiengesellschaftInventors: Johannes Edlinger, Claus Heine-Kempkens, Detlev Hausler
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Patent number: 7066624Abstract: A structure of an ultra-micro reflector having abrasive surface with tapered micro bumps and free of resin layer and its fabrication method are provided. The reflector structure comprises mainly a layer of reflector metal, a scattering element with abrasive surface, and a layer of ITO. The abrasive surface has many tapered micro bumps. The reflector structure can be applied to a reflective or partially reflective LCD to achieve optimal performance. It makes the scattering angle of the reflective light source wider and more uniform. The variation of the gap of liquid crystal cells is greatly reduced, so that the reflective efficiency can be kept in an optimal condition. The reflector structure has larger scattering angle, smooth effect, and very good anti-glare effect. The fabrication process of the reflector structure is simple. The material cost for the abrasive surface is inexpensive.Type: GrantFiled: August 16, 2003Date of Patent: June 27, 2006Assignee: Prime View International Corporation LimitedInventors: Wen-Jian Lin, Hung-Huei Hsu, Hong-Da Liu
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Patent number: 7055967Abstract: An illumination system is provided with at least a first arc lamp positioned on the first axis of a first reflecting device. An aspherical corrector plate is positioned to receive the light rays produced by the arc lamp. The aspherical corrector plate is shaped so that it provides a substantially constant magnification of the arc as a function of the range of reflection angles of light rays off of the reflecting device.Type: GrantFiled: October 1, 2003Date of Patent: June 6, 2006Inventor: Serge J. A. Bierhuizen
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Patent number: 7053540Abstract: An energy efficient fluorescent reflector lamp includes a fluorescent light source enclosed in a reflector with a defined cavity and circumferential rim defining a light emitting opening, and a circumferential flange at a mating opening. The reflector cavity enclosed with a lens at the rim, has an interior wall as a reflective surface for directing light out from light emitting opening. The fluorescent light source is attached to a base located inside the reflector cavity and located inside the mating opening. The circumferential flange diameter is larger than a diameter of the mating opening. The base is assembled and locked together with a ballast housing of defined space sufficient to accommodate an electronic ballast and an electricity supply base. The ballast energizes the fluorescent light source to emit light, and the ballast includes power input terminals connected to said electricity supply base and output terminals connected to said fluorescent light source.Type: GrantFiled: December 2, 2003Date of Patent: May 30, 2006Inventor: Andrzej Bobel
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Patent number: 7033031Abstract: A light guiding member (40) for reflecting therein light entering through a light entering surface (40a) several times to cause light having a uniform illumination distribution to outgo from a light outgoing surface (40b) is inserted into an optical path between a lamp source (10) and a reflection type display device (80). The light outgoing surface (40b) of the light guiding member (40) is formed in a dissimilar shape with an image display region of the reflection type display device (80), and a region irradiated with light in the image display region of the reflection type display device (80) is formed smaller than the image display region. This prevents a whitening phenomenon in a projected image undisplay region and improves video effects given to viewers as well as effectively utilizing light emitted from a light source for images to be projected to display projected images brightly.Type: GrantFiled: November 26, 2003Date of Patent: April 25, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hidehiko Hori
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Patent number: 7018074Abstract: A reflector mounting for fluorescent light fixtures in which a rectangular reflector sheet is formed and held in a trough shape by a series of bracket clips hooked to side edges thereof, the bracket clips having a hole receiving the light tube to thereby hold the reflector in the light fixture.Type: GrantFiled: October 7, 2002Date of Patent: March 28, 2006Inventors: Bruce R. Raby, Fredrick R. Raby, Sr.
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Patent number: 7011433Abstract: A reflector assembly includes a reflector in which a reflector opening is defined therein. The reflector assembly has a datum structure having a plurality of a datum surfaces coupled to the reflector opening. The datum structure is configured to align a lamp with respect to a focal point of the reflector.Type: GrantFiled: January 30, 2004Date of Patent: March 14, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: John M. Koegler, P. Guy Howard
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Patent number: 6966675Abstract: The present invention is concerned with a lighting module for a vehicle headlight for giving a light beam of the cut-off type, particularly one which is adapted to use with light-emitting diodes. The module has a second reflector having a substantially elliptical surface for reflecting light rays and at least one light source arranged close to the first focus of the first reflector. The module also includes a second reflector for producing the cut-off or dipped output beam, the focus of this reflector being arranged close to the second focus of the first reflector. The module further includes a third reflector or bender, having a reflective top face and being situated between the first and second reflectors. This third reflector has a cut-off edge arranged close to the second focus of the first reflector, whereby to form the cut-off within the light beam. The light source is a light-emitting diode.Type: GrantFiled: December 16, 2003Date of Patent: November 22, 2005Assignee: Valeo VisionInventor: Pierre Albou
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Patent number: 6957900Abstract: For example, the reflector according to the present invention is a reflector made of glass for a projector which is composed of amorphous glass whose thermal expansion coefficient is 30 to 45×10?7/° C. and includes a reflective surface for reflecting light emitted from a light source and an opening for inserting a light source bulb or a conductor to the light source bulb, in which the opening is smoothed by heat-treating the surface thereof after opening-drilling, thus mechanical damage is removed from the processed part.Type: GrantFiled: November 28, 2003Date of Patent: October 25, 2005Assignee: Asahi Techno Glass CorporationInventors: Naomi Hirano, Hiroshi Momoi, Hiroyasu Nishio, Nobuhisa Takada
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Patent number: 6958003Abstract: A method of improving aspects critical to the reflector making process by defining a reflector surface definition of specularity by its solid angle measurement and a repeatable execution process. The controlled specularity on a hardened steel tool is replicated on a reflector by forcing the reflector surface to yield in extra compression yield failure and permanently set the desired specularity in the reflector. Next, a physical as well as analytical model of the reflection behavior, based on the solid angle geometry, is provided.Type: GrantFiled: June 5, 2003Date of Patent: October 25, 2005Assignee: Marcus P. Hogue and Leveta P. HogueInventor: Marcus Paul Hogue
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Patent number: 6953261Abstract: A tubular reflector for reflecting light emanating from a tubular light source. The tubular reflector may be semi-circular or elliptical in shape and positioned around the tubular light source. Furthermore, the inner reflective surface of the tubular reflector may be smooth or multi-faceted. The reflector may reflect light from the tubular light source and redirect the light to achieve a desired distribution pattern.Type: GrantFiled: February 25, 2000Date of Patent: October 11, 2005Assignee: North American Lighting, Inc.Inventors: Jianzhong Jiao, Matthew A. Lekson
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Patent number: 6918685Abstract: A signaling assembly having a reflective substrate with opposite first and second surfaces, and wherein each of the surfaces simultaneously reflects visibly discernable eleotromagnetic radiation and passes electromagnetic radiation; and an emitter for emitting visibly discernable electromagnetic radiation is provided, and wherein the emitted visibly discernable electromagnetic radiation may be simultaneously viewed from locations forward of the opposite first and second surfaces of the reflective substrate.Type: GrantFiled: April 15, 2002Date of Patent: July 19, 2005Assignee: K. W. Muth Company, Inc.Inventors: Allen A. Bukosky, Daniel J. Mathieu
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Patent number: 6914719Abstract: A light reflector formed of a biaxially-stretched film which contains a thermoplastic resin and a filler and has an opacity of at least 95%, a whiteness of at least 90%, a reflectance R0 of at least 92%, and an areal draw ratio of from 22 to 80 times, wherein the color difference ?EH, after irradiated with a metal halide lamp spaced from the light reflector by 10 cm under an environmental condition of 83° C. and a relative humidity of 50% and at an intensity of radiation of 90 mW/cm2 for 10 hours, is at most 10. The reflector is free from the trouble of yellowing as in white polyester films heretofore used in reflectors and is stable against color change for a long period of time.Type: GrantFiled: February 6, 2004Date of Patent: July 5, 2005Assignee: Yupo CorporationInventors: Hiroshi Koyama, Tomotsugu Takahashi
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Patent number: 6908212Abstract: A fluorescent light fixture is provided for retrofitting light fixtures utilizing conventional fluorescent lamps into light fixtures utilizing energy efficient fluorescent lamps. The fluorescent light fixture is a single unit comprising a reflector, socket plates at each end, lamp sockets, ballast, ballast cover and wiring. The reflector may be slidably mounted onto the socket plates to allow the retrofit to expand and contract. The fluorescent light fixture may include a attachment which temporarily secures the fluorescent light fixture within a light fixture shell.Type: GrantFiled: February 13, 2003Date of Patent: June 21, 2005Inventor: Michael Schultz
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Patent number: 6886962Abstract: In a shielded reflective LED, each of light sources can be surface-mounted substantially without being influenced by heat distortion based on the difference in thermal expansion coefficient between resin and metal because the light source is so small-sized that only one light-emitting element is sealed with a resin. Moreover, variations in luminous intensity and chromaticity of each of light-emitting elements used in three-color light sources can be examined in advance. Hence, well-matched three-color light sources can be mounted in combination so that display unevenness of a full color display can be reduced greatly. Further, the surface of the substrate portion on which the light source is fixed is silk-screen-printed in black. Hence, external light which enters the device through the optical opening portion when the device is turned off is reflected by the reflecting mirror and absorbed to the surface of the substrate portion.Type: GrantFiled: June 26, 2002Date of Patent: May 3, 2005Assignee: Toyoda Gosei Co., Ltd.Inventor: Yoshinobu Suehiro
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Patent number: 6877871Abstract: A surface light source device comprises a light guide plate 15 having a back face 15E opposite with an emission face, the back face 15 being provided with a great number of micro-reflectors 19 and ridge-like projections 20. A U-shaped fluorescent lamp 14 is disposed along a plurality of end faces 15D, 15E and 15C. Light which is introduced into the light guide plate 15 through the end faces 15D and 15E is direction-converted by the micro-reflectors 19 to be directed to a generally frontal direction end emitted from the emission face. Each micro-reflector 19 realizes direction-conversion mainly through successive double inner-reflections at a pair of slopes. Light introduced into the light guide plate 15 through the end face 15C, which extends in a direction generally perpendicular to the end faces 15D and 15E, is direction-converted by the ridge-like projections 20 having a pair of slopes 20A, 20B to be directed to a generally frontal direction end emitted from the emission face.Type: GrantFiled: July 30, 2001Date of Patent: April 12, 2005Assignee: Enplas CorporationInventor: Shingo Ohkawa
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Patent number: 6877880Abstract: An electric light for work comprises a support stand, capable of being magnetically fixed to a metal surface; a reflector, formed in the shape of a semicircle arc, attached rotatably to the support stand in the vertical direction at a predetermined range; and a lighting device attached so that a luminous body is arranged into the reflector, illuminated the luminous body by a battery attached to the reflector so that the electric light can be illuminated in the place that it is narrow and entered spaces and can be magnetically fixed anywhere when it is metal material, and can be performed to repair with both hands illuminating a work place.Type: GrantFiled: December 13, 2002Date of Patent: April 12, 2005Inventor: Toshiaki Endo
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Patent number: 6871979Abstract: A back light module disposed under a display panel has at least a light source generator for generating light beams, a diffusing plate for scattering the light beams to the display panel, a light guide plate (LGP) for scattering the light beams to the diffusing plate, a reflecting sheet for scattering the light beams to the light guide plate. The reflecting sheet has at least an opening for dissipating heat generated by the operation of the light source generator of the back light module.Type: GrantFiled: May 6, 2003Date of Patent: March 29, 2005Assignee: Toppoly Optoelectronics Corp.Inventor: Che-Kuei Mai
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Patent number: 6854865Abstract: A reflector for flashlights and other light emitting objects is disclosed which includes a generally deep dish shaped reflector member having a reflective inner surface. The reflector member has a rear vertex end and a forward open end and has a depth greater than the average diameter of said forward open end. Preferably the depth is at least 1.2 times greater than said average diameter of the forward open end. Also the reflector preferably has an optical axis and having a focus point located thereon at a location less than 10% of the distance from the rear vertex end to the forward open end of the reflector.Type: GrantFiled: February 12, 2003Date of Patent: February 15, 2005Assignee: W. T. Storey, Inc.Inventors: Brian E. Probst, William T. Storey
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Publication number: 20040264200Abstract: For example, the reflector according to the present invention is a reflector made of glass for a projector which is composed of amorphous glass whose thermal expansion coefficient is 30 to 45×10−7/° C. and includes a reflective surface for reflecting light emitted from a light source and an opening for inserting a light source bulb or a conductor to the light source bulb, in which the opening is smoothed by heat-treating the surface thereof after opening-drilling, thus mechanical damage is removed from the processed part.Type: ApplicationFiled: November 28, 2003Publication date: December 30, 2004Applicant: ASAHI TECHNO GLASS CORPORATIONInventors: Naomi Hirano, Hiroshi Momoi, Hiroyasu Nishio, Nobuhisa Takada
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Publication number: 20040252512Abstract: A lamp has a hybrid lamp reflector and a hybrid lamp front lens. In the reflector, an area outside of a boundary line with includes a lamp reflector having the shape of a paraboloid of revolution, and an area from the boundary line to an optical axis includes a lamp reflector having the shape of an aspherical revolution. The hybrid lamp front lens outputs light fluxes emitted from an arc discharge and reflected by the hybrid lamp reflector parallel to the optical axis.Type: ApplicationFiled: January 13, 2004Publication date: December 16, 2004Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Akira Sekiguchi, Tomohiro Sasagawa, Tetsuo Sato, Yoshiyuki Goto, Kohei Teramoto
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Patent number: 6827470Abstract: A thermally conductive lamp reflector is provided that dissipates heat from a light source within the reflector. The reflector assembly includes a shell having a metallized layer on its surface. The shell is made from a composition including about 30% to about 80% by volume of a base polymer matrix and about 20% to about 70% by volume of a thermally conductive filler material. The reflector has a thermal conductivity of greater than 3 W/m° K and preferably greater than 22 W/m° K. The reflectors can be used in automotive headlamps, flashlights, and other lighting fixtures. A method of forming the lamp reflector is also provided.Type: GrantFiled: August 28, 2002Date of Patent: December 7, 2004Assignee: Cool Optins, Inc.Inventors: E. Mikhail Sagal, Kevin A. McCullough, James D. Miller
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Patent number: 6820994Abstract: A composite lighting device is provided, which is inexpensive and has high uniformity in brightness, in which light emitted from an end face of a backlight having an organic EL device is used to illuminate input buttons and the like. The lighting device includes a transparent substrate having one principal plane on which a transparent electrode film, a luminescent layer, and a reflective electrode film are at least formed. In the lighting device, a liquid crystal display unit is adjacently disposed on the other principal plane, and a light-guide element is adjacent to an end face of the substrate, so that input buttons embedded into the light-guide element are illuminated.Type: GrantFiled: July 22, 2003Date of Patent: November 23, 2004Assignee: Seiko Epson CorporationInventors: Tatsuaki Funamoto, Osamu Yokoyama
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Patent number: 6814469Abstract: An adjustable light fixture includes a housing, a reflector assembly, and an adjustment mechanism. The housing has an external surface and an interior compartment. The reflector assembly is positioned within the interior compartment of the housing. The adjustment mechanism is adjustable from the external surface of the housing to cause movement of the reflector relative to the housing.Type: GrantFiled: February 8, 2001Date of Patent: November 9, 2004Assignee: Cooper Industries, Inc.Inventor: Ellis W. Patrick, III
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Patent number: 6808299Abstract: The luminaire comprises a reflector body (1) which has a reflecting coating (2) on its reflection side (3), and means (4) for accommodating an electric lamp on the reflection side (3). The reflection side (3) has an area (31) with a metal reflecting surface. The area (31) may have a metal sheet cover (32). The cover (32) may follow the surface of the area (31), or it may be spaced apart therefrom. The luminaire benefits from the low absorption of light by the coating (2), and from the high specular reflection of metal in the area (31) to give a high light intensity in a direction determined by the position of the area (31) with respect to a lamp accommodated by the means (4).Type: GrantFiled: March 20, 2002Date of Patent: October 26, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Hendrik Wijbenga, Jean Entrop
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Patent number: 6805925Abstract: A transmittable light-scattering sheet (a transmitting type light-scattering sheet) of the present invention comprises a plurality of layers, each having a bicontinuous structure composed of a plurality of polymers. The layers differ from each other in average period size of the bicontinuous structure. The sheet may comprise, for example, a first layer having a bicontinuous structure (e.g., the average period size of the bicontinuous structure of 1.5 to 4 &mgr;m) and a second layer each having a bicontinuous structure (e.g., the larger average period size of the bicontinuous structure than that of the first layer by 0.5 to 8 &mgr;m). In the sheet, the first layer may be next to the second layer. The ratio of the period size of the first layer to that of the second layer may be the first layer/the second layer=1.3/1 to 4/1. Such a sheet can impart a directionality to a reflected light.Type: GrantFiled: July 24, 2001Date of Patent: October 19, 2004Assignees: Daicel Chemical Industries, Ltd.Inventors: Tatsuo Uchida, Hiroyuki Takemoto
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Publication number: 20040190295Abstract: The invention relates to a shell-like reflector whose light-reflecting inner side is shaped in such a way that the reflector has two focal lines. In addition, the invention relates to a reflector lamp with such a reflector and an incandescent lamp, whose incandescent filament has at least two filament sections arranged in the focal lines.Type: ApplicationFiled: January 16, 2004Publication date: September 30, 2004Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBHInventors: Wolfgang Andorfer, Axel Bunk
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Publication number: 20040165390Abstract: There is provided a liquid crystalline polyester resin for a reflector plate having sufficient reflectance with respect to low wavelengths in visible light range. There is provided a liquid crystalline polyester resin for a reflector plate characterized by having a YI (Yellowness Index) value of 32 or less.Type: ApplicationFiled: October 21, 2003Publication date: August 26, 2004Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tomohiro Sato, Hiroshi Nakamura
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Publication number: 20040156202Abstract: A reflector for flashlights and other light emitting objects is disclosed which includes a generally deep dish shaped reflector member having a reflective inner surface. The reflector member has a rear vertex end and a forward open end and has a depth greater than the average diameter of said forward open end. Preferably the depth is at least 1.2 times greater than said average diameter of the forward open end. Also the reflector preferably has an optical axis and having a focus point located thereon at a location less than 10% of the distance from the rear vertex end to the forward open end of the reflector.Type: ApplicationFiled: February 12, 2003Publication date: August 12, 2004Inventors: Brian E. Probst, William T. Storey
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Patent number: 6773149Abstract: A method for predicting headlamp reflector temperature comprising receiving a headlamp type and transmitting a request for an input parameter value responsive to the headlamp type. The input parameter value is received in response to transmitting the request. A transfer function is executed in response to the input parameter and the headlamp type and the execution results in a predicted maximum reflector temperature. The predicted maximum reflector temperature is then output.Type: GrantFiled: December 17, 2002Date of Patent: August 10, 2004Assignee: General Electric CompanyInventors: Anant Kulkarni, Eric Jaarda, James Wilson, Erwin Liang
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Patent number: 6773141Abstract: A reflector lamp has a generally parabolic shaped housing (12) with an interior surface coated with a layer (14) of silver having a protective layer (16) of a stable protective oxide, such as silica, disposed thereon. An intermediate layer (18), such as a layer of elemental silicon, protects the silver layer during deposition of the silica layer and is completely or substantially consumed during formation of the silica layer. The lamp includes a light source (48) having a longitudinal axis (x) disposed on the parabolic reflector axis and preferably disposed outward of the parabolic focus (F). During lamp fabrication, the protective coating is preferably annealed to improve reflectance. The preferred lamp will have a lumens per watt greater than 14.Type: GrantFiled: March 14, 2002Date of Patent: August 10, 2004Assignee: General Electric CompanyInventors: Tianji Zhao, Rajasingh Schwartz Israel, Frederick Walter Dynys, Thomas Gene Parham
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Publication number: 20040130882Abstract: A reflector has a curved part covering the light source and a pair of end parts extending at the two sides of the curved part. The inside surface of each end part has a plurality of substantially parallel projections or depressions. The light-guiding plate has an incident surface and an emission surface substantially perpendicular to the incident surface, the incident surface having a plurality of projections or depressions extending substantially parallel to the emission surface. Also, the reflection surface of the light-guiding plate has projections.Type: ApplicationFiled: December 1, 2003Publication date: July 8, 2004Applicant: FUJITSU LIMITEDInventors: Yasushi Hara, Chikara Nishio, Makoto Abe, Masashi Hirabayashi, Hiroshi Yamada, Toshikazu Takahashi, Akira Tanaka
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Publication number: 20040125593Abstract: Disclosed herein is a heater module of a rapid thermal processing apparatus. The heater module comprises a heater reactor provided with reflectors, lamps, a cooling gas inlet unit, a quartz window, a quartz window fixing unit, and a cooling gas outlet unit. According to the present invention, since the lamps, reflectors and the like provided in the heater module are cooled during or after thermal processing steps, it is possible to maintain smooth operation thereof, to extend its usage life, and to reduce a preparation time of thermal processing steps. Further, as the respective reflectors adopt an independent structure for allowing the respective lamps to be installed therein in a one-on-one fashion, it is possible to achieve accurate control of a heating source. Furthermore, the lamps adopt a structure capable of effectively reflecting light emitted therefrom, resulting in an improvement in a thermal efficiency.Type: ApplicationFiled: July 23, 2003Publication date: July 1, 2004Applicant: KORNIC SYSTEMS CORP.Inventor: Won-Sik Nam