Patents Examined by Meghan K. Dunwiddie
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Patent number: 7318665Abstract: A light guiding device to compensate insufficient lighting in a light guide plate's corner areas is provided. The light guiding device is positioned on the inner side of the lamp reflector neighboring to the electrodes at the ends of the lamp. The light guiding device has a reflection surface which reflects and directs lights toward the dim corner areas of the light guide plate, compensating the lighting and thereby reducing these dim areas.Type: GrantFiled: April 13, 2005Date of Patent: January 15, 2008Assignee: Radiant Opto-Electronics Corp.Inventor: Cheng-Fa Chung
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Patent number: 7314289Abstract: The invention relates to a luminaire comprising a plurality of light sources fixedly located in a plurality of positions and comprising at least an electroluminescent diode. Said sources are focused by the same optical system fixed relative to the plurality of sources. Said luminaire comprises electronic means for dimming sources in their emission intensity independently of one another and as a function of their respective positions relative to said optical system. The invention provides an output beam having a dimmable photometric distribution in time and in space at the output of said optical system.Type: GrantFiled: November 11, 2003Date of Patent: January 1, 2008Assignee: Koninklijke Philips Electronics, N.V.Inventor: Louis Montagne
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Patent number: 7311428Abstract: An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly having a reflective element having a field of view rearward of the vehicle when the interior rearview mirror assembly is attached at a portion of the interior of the vehicle. A directional information display is viewable to a driver of the vehicle. A compass sensor is preferably disposed in the mirror housing behind the reflective element such that adjustment by the driver to set the rearward field view of the reflective element moves the compass sensor in tandem with movement of the reflective element. The interior rearview mirror assembly comprises a video camera having a field of view that encompasses one of (i) the windshield of the vehicle and (ii) the driver of the vehicle.Type: GrantFiled: August 7, 2007Date of Patent: December 25, 2007Assignee: Donnelly CorporationInventors: Jonathan E. DeLine, Roger L. Veldman, Niall R. Lynam
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Patent number: 7311432Abstract: Backlight modules. A backlight module for a flat display device includes a light guide element and a fluorescent lamp assembly. The fluorescent lamp assembly disposed on a first side of the light guide element includes a first fluorescent lamp and a second fluorescent lamp. The first fluorescent lamp comprises a first end, a second end and a first phosphor coating on an inner surface of the first fluorescent lamp, wherein the first phosphor near the first end is thicker than the second end. The second fluorescent lamp comprises a third end adjacent to the second end, a fourth end adjacent to the first end, and a second phosphor coating on an inner surface of the second fluorescent lamp, wherein the second phosphor near the third end is thicker than the fourth end.Type: GrantFiled: June 1, 2005Date of Patent: December 25, 2007Assignee: AU Optronics Corp.Inventors: Chao-Kai Huang, Meng-Chieh Cheng, Pei-Chen Chan
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Patent number: 7309151Abstract: In one embodiment, a light emitting panel includes a base panel and a plurality of light emitting elements mounted to the base panel. Each of the light emitting elements produces an illumination pattern having a region of substantially uniform intensity that extends over a radiation angle of at least about 60°. One or more light conditioners are positioned adjacent the base panel to receive and condition light produced by the light emitting elements.Type: GrantFiled: April 11, 2005Date of Patent: December 18, 2007Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Thye Linn Mok, Siew Kim Tan, Shin Wen Ng
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Patent number: 7309147Abstract: A flashlight includes a body, a flashlight head assembly, and a switch assembly. The body includes a first end securable to the flashlight head assembly, a second end, and a substantially cylindrical portion between the first end and the second end. The switch assembly, which is located at the substantially cylindrical portion of the body adjacent the second end, electrically connects with the flashlight head assembly to regulate the delivery of power thereto. The flashlight head assembly includes a first end and a second end securable to the body, a lens disposed in the flashlight head at the first end, a reflector disposed in the flashlight head adjacent the lens, a heat sink disposed in the flashlight head adjacent the reflector, and an LED assembly disposed within the heat sink such that the heat sink substantially completely surrounds the LED assembly.Type: GrantFiled: October 25, 2005Date of Patent: December 18, 2007Assignee: Lightstick Partners, LLCInventor: Richard W. Martin
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Patent number: 7300184Abstract: In a planar light guiding device and a display device, plural light guiding rods are arranged in parallel to one another in a housing having an opening portion serving as a light emission face at the upper surface thereof, and a point light source (LED) 2 is disposed so as to oppose to at least one of both the end faces 1a of each light guiding rod through a space, thereby constituting a light source unit. These light source units are arranged in the metal housing to thereby form the planar light guiding device.Type: GrantFiled: May 17, 2005Date of Patent: November 27, 2007Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Koji Ichikawa, Seiji Sakai, Toshiyuki Yoneda
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Patent number: 7296906Abstract: The invention relates to a soft handle having a lighting apparatus, which includes a lighting apparatus and a spring switch being received in one end of a shaft of the handle. The handle has a soft shell with inner liquid for comfortable use and has the lighting apparatus to emit lighting ray as a flashlight. The handle includes two functions in a single body and then obtains utilization and improvement.Type: GrantFiled: October 20, 2006Date of Patent: November 20, 2007Inventor: Michael Chien-Lung Wu
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Patent number: 7293895Abstract: A modular lighting system is formed of tubular fluorescent lamps mounted within adjustable fixtures. The fixtures are composed of rigid and flexible elements and can conform to the shape of almost any size or shape of lamp. The lamps may be of any variety of pre-determined shape, curvature or length, to meet the desired lighting requirement. Each fixture may include a lampholder, lamp retention device, mounting surface, ballast, enclosures, and specially-molded flexible special power cable which flexibly connects the rigid elements or assemblies of each fixture. Electrical connections are made between each adjacent fixture with integral male and female flexible power cords. Thus, a custom-made fluorescent lighting system is created using standardized flexibly adjustable fixtures and any variety of lamp shapes or lengths. The system may be installed and electrically connected without any disassembly or tradition field-assembled and installed wiring, minimizing effort for installation or removal.Type: GrantFiled: October 20, 2005Date of Patent: November 13, 2007Assignee: Cathode Lighting Systems, Inc.Inventors: Steven H. Grossman, Richard E. Grossman
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Patent number: 7293891Abstract: A lighting device (10) has an elongated light tube (12) to be used in combination with a holster (80) in a manner which will enable the holster (80) to hold the lighting device (10) as may be necessary and also enable the holster (80) to adjust the extent of illumination of the light tube (12) of the lighting device by light received from a light source (24) disposed within the lighting device (10) using magnets (66, 96).Type: GrantFiled: May 5, 2005Date of Patent: November 13, 2007Assignee: Herold Design Group LLCInventor: Michael A. Herold
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Patent number: 7290917Abstract: A light guide plate (32) for a backlight module includes a light incident surface (321), a bottom surface (323), and a plurality of light guide elements (320) disposed therein. Each light guide element has a light refractive surface (324) opposite to the light incident surface. An angle between the light refractive surface and the bottom surface is an acute angle. A refractive index of each light guide element is different from that of adjacent light guide elements. The reflectivity index of the light guide element and the angle can be selected and arranged so that most if not all the light beams are emitted from the light output surface. Thereby, the light guide plate is highly efficient in the utilization of light beams.Type: GrantFiled: November 21, 2005Date of Patent: November 6, 2007Assignee: Innolux Display Corp.Inventors: Hung-Sheng Cho, Chiu-Lien Yang
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Patent number: 7290906Abstract: A lamp can include LED lamps as a light source. An optical guide path including a first reflecting surface and a second reflecting surface can be provided between the LED lamp and a lens that radiates an illumination light. The optical guide path can be integrally composed of a high-refractivity material. Thus, the light passing through the optical guide path can more efficiently reach the lens. In addition, the integral optical guide path requires less assembly and thus can improve accuracy of assembly and can possibly result in a large gain in the amount of light emitted from the lamp.Type: GrantFiled: September 14, 2004Date of Patent: November 6, 2007Assignee: Stanley Electric Co., Ltd.Inventors: Nobuyuki Suzuki, Hiroyuki Chikama, Hidetaka Okada
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Patent number: 7290919Abstract: A backlight module includes a light source, a light guide plate for guiding light from the light source, and a brightness enhancement film having a plurality of spherical surface microlenses for gathering light from the light guide plate. In contrast to traditional prism sheets, the brightness enhancement film having the plurality of spherical surface microlenses have better efficiency of light-gathering.Type: GrantFiled: April 21, 2006Date of Patent: November 6, 2007Assignees: AU Optronics Corp., Sun Yat-senUniversityInventors: Cheng-tang Pan, Ching-hua Su, Han-chang Cheng, Chih-liang Pan
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Patent number: 7284884Abstract: Primary light is directed to a light path control plate from at least one point-like light source. The light path control plate has an inner face on which projection-like transmission-reflection portions and curved-for-refraction portions are alternately formed along a leaving-direction from an optical axis direction of the point-like light source, wherein each transmission-reflection portion is composed of a transmission face permitting primary light to transmit through the transmission face and a reflection face which reflects the transmitted light as to bring changed light paths directed to an outer face of the light path control plate while each curved-for-refraction portion refracts primary light as to bring changed light paths directed to the outer face of the light path control plate. First light reaching the outer face via the transmission-reflection portions and second light reaching the outer face via the curved-for-refraction portions are generated from primary light.Type: GrantFiled: July 28, 2004Date of Patent: October 23, 2007Assignee: Enplas CorporationInventor: Shingo Ohkawa
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Patent number: 7284892Abstract: A spread illuminating apparatus includes a light converging element which has a refractive index profile in a direction orthogonal to two major surfaces of a light conductive plate, and which is disposed between at least one light source and one end surface of the light conductive plate. The light converging element comprises: a plurality of transparent resin films which have respective refractive indexes so as to constitute a refractive index gradation mirror-imaged with respect to the center plane of the light converging element, and which are layered over one another; and a plurality of light-transmittable adhesive layers each of which is sandwiched between two adjacent transparent resin films.Type: GrantFiled: January 21, 2004Date of Patent: October 23, 2007Assignee: Minebea Co., Ltd.Inventors: Atsushi Kitamura, Shingo Suzuki
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Patent number: 7281824Abstract: A luminaire has a concave reflector with an optical center on an optical main axis in an optical main plane. A screen extends along the optical main axis to a light emission window. The reflector has a first faceted reflector portion at a first side of the optical main plane, the optical center being its focus and the optical main axis being its axis. A second faceted reflector portion is present at a second side of the optical main plane, having a secondary axis passing through and a focus lying in the optical center. The secondary axis is tilted with respect to the main axis through acute angles in the main plane as well as out of the plane. The luminaire produces a screened-off light beam which is horizontally and vertically asymmetrical, which makes the luminaire suitable for an illumination of highways in a counter-traffic direction.Type: GrantFiled: April 11, 2003Date of Patent: October 16, 2007Assignee: Koninklijke Philips Electronics, N.V.Inventors: Hendrik Wijbenga, Jean Paul Entrop
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Patent number: 7281813Abstract: A safety vest is sized to be worn by a human, wherein the vest has a front and back and left and right sides each having a shoulder portion. An EL strip is provided on each side of the vest extending from the bottom of the vest upwards toward the shoulder portion. A power source is supported by the vest and connected to the EL lamp strips to supply electrical energy to the strips so that they emit EL light, wherein the EL light emitted by the EL strip is a safety yellow color, and wherein other portions of the vest are a safety orange color. Further safety articles of clothing and devices are also described.Type: GrantFiled: August 31, 2006Date of Patent: October 16, 2007Assignee: Safe Lites, LLCInventors: John Golle, Aaron Golle
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Patent number: 7278771Abstract: A film for use with a backlit display has prismatic structure on one surface. The structures have a serpentine shape. The average periods and amplitudes of the serpentine shapes may be optimized to minimize moiré interference with the pixels of the display.Type: GrantFiled: November 22, 2004Date of Patent: October 9, 2007Assignee: 3M Innovative Properties CompanyInventor: Alan B. Campbell
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Patent number: 7278768Abstract: The invention relates to an indicating and/or lighting device for a motor vehicle, said device comprising a casing inside which there are arranged at least one main light source, at least one reflector associated with the main light source(s), optionally at least one intermediate screen that is substantially transparent and lies opposite said main light source or at least one of said main light sources, and a closing covering for the casing. At least one of the faces of the closing covering and/or of the optional intermediate screen is provided with a plurality of foci for diffusing light by means of surface alterations of said face.Type: GrantFiled: September 15, 2006Date of Patent: October 9, 2007Assignee: Valeo VisionInventor: Jean-Claude Gasquet
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Patent number: 7278748Abstract: A display apparatus includes a display, a light source, and a light transmittance control means. The display displays a display design. The light source emits a light to illuminate the display. The light transmittance control means is disposed on at least one side of the display and includes a characteristic region for varying an exit angle of the light by varying an incident angle of the light on the light transmittance control means.Type: GrantFiled: March 8, 2005Date of Patent: October 9, 2007Assignee: DENSO CorporationInventors: Katsuhiko Kuwahara, Satoru Tamura