With Optical Device Or Special Ray Transmissive Envelope Patents (Class 313/110)
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Patent number: 8258698Abstract: According to one embodiment, a light emitting device includes a first lead, a light emitting element, a second lead and a molded body. The first lead includes a die pad portion having a major surface and a recess provided in the major surface, and a bent portion bent toward above the major surface. The light emitting element is bonded to a bottom surface of the recess. The second lead with one end portion is opposed to one end portion of the first lead. The molded body covers the light emitting element, the bent portion, the die pad portion, and the one end portion of the second lead, and is made of a resin. A position of barycenter of the molded body is set between a lower surface of the die pad portion and a plane including an upper end of the bent portion.Type: GrantFiled: December 16, 2010Date of Patent: September 4, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Tetsuya Muranaka, Yasunori Nagahata
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Patent number: 8247957Abstract: An LED module comprises an LED having a first optical axis and a lens fixed over the LED for refracting light emitted from the LED. The lens comprises an emission surface having a second optical axis and an incidence surface having a third optical axis. The second optical axis of the emission surface offsets from the first optical axis of the LED in a first direction for increasing a light intensity at a side of the first optical axis in the first direction. The first, second and third optical axes are in a line along the first direction. The third optical axis offsets from the first optical axis of the LED at a side opposite to that of the second optical axis.Type: GrantFiled: October 26, 2009Date of Patent: August 21, 2012Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.Inventors: Chin-Chung Chen, Hai-Wei Zhang
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Publication number: 20120206032Abstract: A U-shaped groove and a V-shaped groove are formed onto a cladding disposed on a substrate, a core and a metal structure are formed inside the grooves, respectively, and then the substrate surface is planarized. Further, after a cladding is formed again, the substrate is cut and the cut surface is polished such that the metal structure inside the V-shaped groove has a predetermined thickness, thereby forming a scattering body.Type: ApplicationFiled: February 9, 2012Publication date: August 16, 2012Inventors: Yoko SHINOHARA, Norio Chiba, Manabu Oumi, Masakazu Hirata, Sachiko Tanabe, Yoshikazu Tanaka
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Patent number: 8242670Abstract: Disclosed is an electromagnetic wave blocking member for a display apparatus. The electromagnetic wave blocking member may include a transparent substrate, an electrode layer, and a transparent conductive layer. The electrode layer can include i) a grounding electrode corresponding to at least one frame area of the transparent substrate, and ii) an auxiliary electrode overlying the transparent substrate for connection with the grounding electrode and having a mesh or stripe pattern. The transparent conductive layer can be formed either on the electrode layer or between the transparent substrate and the electrode layer. In one example, the transparent conductive layer can include a series of a metal thin film alternating with a metal oxide thin film a plurality of times.Type: GrantFiled: July 21, 2008Date of Patent: August 14, 2012Assignee: Samsung Corning Precision Materials Co., Ltd.Inventors: Eui Soo Kim, Jechoon Ryoo, Jeonghong Oh, Hongik Kim
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Patent number: 8241604Abstract: A method for making a metal-titania pulp and photocatalyst is provided, including firstly acidically hydrolyzing a titanium alkoxide solution in presence of an alcohol solvent to get a colloidal solution; then, adding at least one metal salt solution into the colloidal solution to produce a nano-porous metal/titania photocatalyst under appropriate conditions by appropriate reaction. The nano-porous metal/titania photocatalyst thus prepared has excellent optical activity and is applicable in research of water decomposition with light to improve production efficiency of hydrogen energy. In addition, the photocatalyst is further processed in the form of powder or film to facilitate industrial application in wastewater treatment.Type: GrantFiled: September 30, 2009Date of Patent: August 14, 2012Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Jen-Chieh Chung, Yu-Zhen Zeng, Yu-Chang Liu, Yun-Fang Lu
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Patent number: 8237346Abstract: It is an object of the present invention to provide a PDP and an FED with excellent visibility and a high level of reliability that each have an antireflective function by which reflection of external light can be reduced. A plurality of adjacent pyramidal-shaped projections and an antireflective layer equipped with a covering film that covers the projections are provided. The reflection of light is prevented by the index of refraction of incident light from external being changed by a pyramid, which is a physical shape, projecting out toward an external side (atmosphere side) of a substrate that is to be used as a display screen as well as by the covering film used to cover the projections being formed of a material that has a higher index of refraction than the index of refraction of the pyramidal projection.Type: GrantFiled: October 18, 2011Date of Patent: August 7, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuji Egi, Jiro Nishida, Takeshi Nishi
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Patent number: 8227969Abstract: A light emitting apparatus can prevent unevenness in illuminance from being produced. This light emitting apparatus 5 has: light emitting elements 3 that emit light; and light flux controlling members 4 that control the traveling directions of light emitted from light emitting elements 3, and a plurality of grid convex parts 13 are formed in back surface 12 (i.e. lens bottom surface) of light flux controlling member 4. Grid convex parts 13 vary the incident angles of light incident on back surface 12 of light flux controlling member 4. Therefore, light incident from back surface 12 is scattered without being concentrated, and is emitted from light flux controlling member 4.Type: GrantFiled: April 27, 2010Date of Patent: July 24, 2012Assignee: Enplas CorporationInventors: Masao Yamaguchi, Yasuyuki Fukuda
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Patent number: 8220978Abstract: A brightness enhancement film (BEF) includes a light transmissive substrate having a first surface and a second surface, a plurality of lenses disposed on the first surface, and a reflective layer. Each of the lenses has a curved protruding surface facing away from the light transmissive substrate. The radius of curvature of the curved protruding surface in a first direction parallel to the first surface is R1, the radius in a second direction is R2, and R1?R2. The reflective layer is disposed on the second surface and has a plurality of light pass openings respectively located on the optical axes of the lenses. The distance between the apex of the curved protruding surface and the corresponding light pass opening is L, the refractive index of the lenses is n, and the BEF satisfies L<nR1/(n?1) and L<nR2/(n?1). A backing light module using the BEF is provided.Type: GrantFiled: May 19, 2010Date of Patent: July 17, 2012Assignee: Coretronic CorporationInventors: Tzeng-Ke Shiau, Ching-Shiang Li, Wen-Chih Huang, Fu-Ming Chuang, Kuo-Tung Tiao
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Patent number: 8217572Abstract: It is an object to propose a display device in which reflection of external light on a reflective polarizing plate is prevented and also extraction efficiency of light from a light-emitting layer is improved. If the display device has a light-emitting layer provided over a reflective electrode, a transparent electrode provided over the light-emitting layer, a transparent substrate provided over the transparent electrode, a reflective polarizing plate provided over the transparent substrate, a quarter wave plate provided over the reflective polarizing plate, and a polarizing plate provided over the quarter wave plate, reflection of an outside image can be suppressed, and light emitted in the light-emitting layer can be extracted efficiently.Type: GrantFiled: October 10, 2006Date of Patent: July 10, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu Hirakata, Shunpei Yamazaki
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Publication number: 20120169251Abstract: A structure of a light emitting diode (LED) lamp and a method for fabricating the same are provided. In the structure of the LED lamp, LEDs are designed to approach an inner surface of a lampshade more closely, so that the LED lamp has high brightness and high light-use efficiency. The method for fabricating the LED lamp includes the following steps. First, a holder is provided and at least one flexible LED light bar is assembled on the holder. The flexible LED light bar is then forced to approach the holder, and the flexible LED light bar as well as the holder are inserted into the lampshade. After the flexible LED light bar and the holder are inserted into the lampshade, the flexible LED light bar is bent outward to approach the inner surface of the lampshade. After that, the holder and the lampshade are assembled on a socket.Type: ApplicationFiled: May 18, 2011Publication date: July 5, 2012Applicant: NOVALITE OPTRONICS CORP.Inventors: Kou-Rueh Lai, Kung-Chi Ho
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Publication number: 20120146482Abstract: A flat display and a method of fabricating the same, in which the fabrication of the flat display is facilitated by employing a plate-to-plate method. The method of fabricating a flat display panel includes the steps of forming an optical bonding resin layer by applying an optical bonding resin on the underside of a transparent film, attaching a filter to the upper surface of the transparent film, and attaching the optical bonding resin layer to the upper surface of a display panel using a plate-to-plate method.Type: ApplicationFiled: December 12, 2011Publication date: June 14, 2012Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.Inventors: Ji Yoon Yeom, Insung Sohn, Euisoo Kim, Seung won Park, Jinhoon Lee, EunYoung Cho
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Patent number: 8198805Abstract: A display apparatus, includes: a substrate; a plural light emitting elements provided on the substrate and each formed from a lower electrode, a light emitting function layer and an upper layer stacked in this order; a partition for element isolation provided on the substrate and having a plural apertures individually corresponding to the light emitting elements; and a black matrix disposed on the light extraction side of the light emitting elements and having a shape with which the black matrix covers over portions. Each of the apertures of the partition having a side wall is formed in such a tapering shape that the aperture width increases toward the light extraction side of the light emitting elements. The black matrix is provided in such a manner as to cover over an upper edge portion of the tapering shape on at least one side which defines each aperture of the partition.Type: GrantFiled: February 28, 2008Date of Patent: June 12, 2012Assignee: Sony CorporationInventors: Akitsuna Takagi, Jiro Yamada, Toshihiro Fukuda
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Patent number: 8193697Abstract: A light-emitting device includes a substrate and a light-emitting element formed on the substrate. The light-emitting element includes a stacked layer structure portion including a reflective electrode, a light-emitting layer on the reflective electrode and a transparent electrode on the light-emitting layer which are stacked over the substrate with the reflective electrode as a bottom layer, the light-emitting layer having a flat surface provided at least on a portion of the light-emitting layer. A bank is disposed in a peripheral area surrounding the flat surface or on a peripheral portion of the flat surface and has a tilt surface tilted with respect to the flat surface. A conductive film is at least provided on the tilt surface and is electrically connected with the transparent electrode, and forms a reflective surface on the tilt surface, and an optical waveguide layer is provided in an area surrounded by the tilt surface.Type: GrantFiled: August 10, 2011Date of Patent: June 5, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Kazutaka Tsuji, Hajime Murakami, Etsuko Nishimura
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Patent number: 8188648Abstract: Systems for displaying images and fabrication method thereof are provided. A representative system incorporates an electroluminescent device including light emitting units emitting lights with different luminescent intensities along light emitting paths thereof, formed overlying a substrate. And a compensation layer is disposed along the light emitting paths to adjust the different luminescent intensities for outputting substantially uniform light.Type: GrantFiled: November 23, 2010Date of Patent: May 29, 2012Assignee: Chimei Innolux CorporationInventors: Du-Zen Peng, Shih-Chang Chang, Chang-Ho Tseng
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Patent number: 8187482Abstract: A flat panel display and a method of manufacturing the same are disclosed. In one embodiment, the manufacturing method includes: i) preparing a substrate, ii) forming a plurality of subpixels on the substrate and iii) forming a light resonating layer including two or more layers on the subpixels, wherein the light resonating layer varies in thickness depending on the subpixels. According to at least one embodiment, it is possible to improve the brightness and the external light coupling efficiency. Further, it is possible to easily manufacture the light resonating layer with the structure in which the low refractive layers alternate with the high refractive layers.Type: GrantFiled: February 5, 2009Date of Patent: May 29, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Young-Woo Song, Yoon-Chang Kim, Jong-Seok Oh, Sang-Hwan Cho, Ji-Hoon Ahn, Joon-Gu Lee, So-Young Lee, Jae-Heung Ha
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Patent number: 8183753Abstract: An apparatus for providing a photoluminescent light source is disclosed. In one embodiment, the apparatus comprises a light source that emanates light of a particular spectrum, photoluminescent material which converts light from the light source to light of another spectrum, and a selective mirror which reflects light generated by the light source and transmits light generated by the photoluminescent material. The photoluminescent material may be arranged so as to provide a plurality of light sources that emanate light of various colors. In an embodiment, the photoluminescent material is situated in small regions within a transparent material and lenses are used to collimate light emitted from the small regions.Type: GrantFiled: September 9, 2011Date of Patent: May 22, 2012Assignee: I2iC CorporationInventors: Udayan Kanade, Gaurav Kulkarni, Karthikk Sridharan, Manas Alekar, Manohar Joshi, Sanat Ganu, Balaji Ganapathy
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Patent number: 8174179Abstract: A top emission type organic light emitting display apparatus that can improve contrast without using a black matrix and can simply the manufacture of a color filter. The top emission type organic light emitting display apparatus includes a substrate, an organic light emitting device arranged on the substrate and including a first electrode layer and a second electrode layer arranged opposite to each other and an organic light emitting layer arranged between the first electrode layer and the second electrode layer, an encapsulating member arranged to encapsulate the organic light emitting device, a polarizing film arranged on the encapsulating member and a color filter arranged between the encapsulating member and the polarizing film, the color filter being arranged directly on the polarizing film.Type: GrantFiled: July 2, 2009Date of Patent: May 8, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventor: Min-Chul Suh
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Patent number: 8169136Abstract: A light emitting device comprising a light emitting component that emits light with a first peak wavelength, and at least one sintered ceramic plate over the light emitting component is described. The at least one sintered ceramic plate is capable of absorbing at least a portion of the light emitted from said light emitting component and emitting light of a second peak wavelength, and has a total light transmittance at the second peak wavelength of greater than about 40%. A method for improving the luminance intensity of a light emitting device comprising providing a light emitting component and positioning at least one translucent sintered ceramic plate described above over the light emitting component is also disclosed.Type: GrantFiled: February 19, 2009Date of Patent: May 1, 2012Assignee: Nitto Denko CorporationInventors: Toshitaka Nakamura, Hironaka Fujii, Hiroaki Miyagawa, Rajesh Mukherjee, Bin Zhang, Amane Mochizuki
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Patent number: 8154201Abstract: A display device is provided with a display panel displaying variable visual images, a transparent protective unit located at a front side of the display panel, an adhesive layer that is formed between the display panel and the transparent protective unit to adhere the transparent protective unit to the display panel, and a fixing member disposed at a rear side of the display panel and surrounding and fixing side surfaces of the display panel and the adhesive layer.Type: GrantFiled: April 3, 2009Date of Patent: April 10, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Woo-Suk Jung, Duk-Jin Lee, Noh-Min Kwak, Gi-Na Yoo, Min-Jae Kim
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Publication number: 20120081497Abstract: In general, according to the embodiment, a light emitting panel includes a glass substrate, a light emitting element, metal wiring, and a mark. The glass substrate allows light to pass through. The light emitting element is present in any one of a first plane and a second plane which is a rear surface of the first plane, of the glass substrate. The metal wiring is present on one surface, and applies voltage to the light emitting element. The mark is present on one surface, and is formed of the same material as the metal wiring.Type: ApplicationFiled: September 20, 2011Publication date: April 5, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Daisuke Ishikawa, Koji Tanimoto, Kenichi Komiya, Kazutoshi Takahashi, Hiroyuki Ishikawa
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Publication number: 20120080994Abstract: An LED lamp includes a housing, a conducting ring mounted on the housing, a shade swivelably mounted on the housing, an LED module mounted on the shade, and two conducting pins each electrically connected with the LED module and each electrically connected with the conducting ring. Thus, when the LED module is moved in concert with the shade, each of the two conducting pins is slidably in contact with the conducting ring to connect the LED module electrically with the conducting ring and to connect the LED module electrically with the metallic base and the power contact plate through the conducting ring so as to form an electrical circuit so that the LED module can be rotated through three hundred and sixty degrees (360°) so as to change the lighting direction of the LED module.Type: ApplicationFiled: October 5, 2010Publication date: April 5, 2012Inventors: Hua-Chun Chin, Hung-Yuan Lin, Fu-Wi Teng
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Publication number: 20120062102Abstract: A light apparatus includes s light arrangement and a highlighting element. The light arrangement includes a light housing, at least a connector coupling with the light housing for electrically connecting to a power supply source, and at least a light source received in the light housing for generating a non-neon light to penetrate through the light housing. The highlighting element is provided at the light housing and arranged in such a manner that when the light passes through the light housing, the highlighting element creates a neon light emitting effect at the light arrangement.Type: ApplicationFiled: September 10, 2010Publication date: March 15, 2012Inventor: David Chiang
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Patent number: 8134285Abstract: A geometrically shaped photonic crystal structure consisting of alternating layers of thin films is heated to emit light. The structure may include index matching layers or a cavity layer to enhance emissions. The layer thicknesses of the structure may be spatially varied to modify the emission spectrum versus emission angle. The self-focusing structure may be fabricated into a convex electrically heated wire filament light bulb, a concave visible thermophotovoltaic emitter, a concentric directional heat exchanger, an electronic display, or a variety of irregularly shaped remotely read temperature or strain sensors.Type: GrantFiled: December 20, 2007Date of Patent: March 13, 2012Inventor: Robert A Marshall
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Publication number: 20120049765Abstract: A method includes providing a chandelier comprising at least three light emitting diodes, with each of the at least three light emitting diodes having at least one color of red, green, and blue colors. The method also includes operatively connecting the light emitting diode to a controller and a memory such that the controller provides control instructions to the light emitting diodes. The method also has controlling the at least three light emitting diodes to provide a decorative lighting effect.Type: ApplicationFiled: August 29, 2011Publication date: March 1, 2012Inventors: Sun Lu, Wen-Chau Wayne Hou
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Publication number: 20120049718Abstract: A direct-viewing type display device (100A) of the present invention includes: a display panel which has a display region (10A) that can be altered into a transparent state and a frame region (10F) provided outside the display region; and a light-transmitting cover (20) provided on a front side of the display panel. The light-transmitting cover includes a lens portion (22) positioned so as to overlap a region that includes part of the frame region of the display panel and part of a peripheral display region (10D) within the display region which adjoins the part of the frame region. The display device further includes a housing (30) which has a housing portion (36) provided at least on a side surface (10b) of the display panel. Part of light going out from the part of the peripheral display region and/or part of light entering the housing portion on a rear side goes out on a front side of the housing portion (36).Type: ApplicationFiled: April 20, 2010Publication date: March 1, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hisashi Watanabe, Yasushi Asaoka
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Patent number: 8125138Abstract: In a lighting device with at least one continuous OLED layer (4) with a first electrode layer (5), a second electrode layer (6) and a plurality of optical collimating means, the second electrode layer (6) is only in electrical contact with the OLED layer (4) within spaced sections (6a), arranged within acceptance angles of the collimating means. Such a lighting device can be manufactured efficiently and is highly energy-efficient.Type: GrantFiled: June 4, 2007Date of Patent: February 28, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Gunnar Luttgens, Benno Spinger
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Patent number: 8125127Abstract: An article of manufacture, comprising: at least one point source of light which emits a light beam; and at least one reflective means for diffusing the light and/or converting the light to a different color range. The goal of this invention is to greatly increase the energy efficiency of area lighting by the use of highly efficient beams light sources.Type: GrantFiled: February 11, 2010Date of Patent: February 28, 2012Inventors: Anthony Mo, Michael Palazzi
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Patent number: 8115377Abstract: A translucent material substrate is shaped such that high luminous efficiency can be obtained in an organic EL light source in which light is emitted from a translucent material substrate to the atmosphere. The organic EL light source includes a luminescent layer composed of an organic luminescent element, a transparent electrode and a counter electrode, and a translucent material substrate. The translucent material substrate has a truncated quadrangular pyramidal shape having a surface in abutment with the luminescent layer as the bottom face of the shape. The bottom face is formed in the shape of a square in which the length of one side is “b”, and the top face opposite the bottom face is formed in the shape of a square in which the length of one side with respect to the same extending direction as that of the “b”-length side is “a”. In addition, the shape of the translucent material substrate has thickness “c”.Type: GrantFiled: June 18, 2010Date of Patent: February 14, 2012Assignee: NEC Lighting, Ltd.Inventor: Shusaku Kon
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Patent number: 8102104Abstract: Provided is a front-side filter which can be easily attached to a cover of a display device, but is difficult to detach from the cover even after long term use and further provided is a PDP device including the same filter. The front-side filter includes a filter base having at least one function among a near-infrared ray shielding function, and a neon light shielding function, and an electromagnetic wave shielding function; and an antireflective layer with an edge pattern, formed on a side of the filter base in such a way that the entire edge portion or a part of the edge portion of the filter base is exposed through the edge pattern to provide a fixing means formed in the edge pattern.Type: GrantFiled: November 7, 2005Date of Patent: January 24, 2012Assignee: Samsung Corning Precision Materials Co., Ltd.Inventors: Dong-keun Sin, Eui-soo Kim, Nam-soo Kim, Jong-won Lee, Young-chae Cho
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Patent number: 8100564Abstract: An illuminating device in which stray lights are prevented and light distribution design is easy by making it possible to receive lights emitted from an LED lamp with an external reflecting mirror as much as possible is provided. A reflecting mirror having a concave reflecting surface reflecting an incident light, a light emitting element, and a lens molding a light emitting element therein and having a lens surface opposed to a light emitting surface of the light emitting element, the lens surface being in a slope shape with its central portion being projected to the light emitting element are included, and the reflecting surface of the reflecting mirror and the light emitting surface of the light emitting element are disposed to be opposed to each other with the lens surface of the lens therebetween so that light emitted from the light emitting element is reflected at the lens surface to be emitted outside the lens to be incident on the reflecting surface of the reflecting mirror.Type: GrantFiled: January 22, 2009Date of Patent: January 24, 2012Assignee: Kabushiki Kaisha ToshibaInventor: Reiji Ono
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Publication number: 20120013238Abstract: An apparatus for generating light may be comprised of a light source with a lens interposed in a light path from the light source. The lens may be comprised of two or more sections wherein at least one section may be comprised of smart glass. Electrical circuitry may be configured to control a transparency state of the smart glass lens sections. Another embodiment may have two reflectors wherein one of the reflectors may be interposed between the light source and the other reflector and may be comprised of smart glass with a transparent state and a reflective state so that two different reflection patterns may be created. A method for illumination wherein at least one area's illumination is controlled by a section of smart glass is also disclosed.Type: ApplicationFiled: July 19, 2010Publication date: January 19, 2012Applicant: Greenwave Reality, Inc.Inventor: Karl Jonsson
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Publication number: 20120014088Abstract: A component for a light-emitting device includes a fluorescent layer capable of emitting fluorescent light, and a lens connected onto the fluorescent layer.Type: ApplicationFiled: July 12, 2011Publication date: January 19, 2012Applicant: NITTO DENKO CORPORATIONInventors: Yasunari OOYABU, Hironaka FUJII, Toshitaka NAKAMURA, Hisataka ITO
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Publication number: 20120007487Abstract: In one embodiment, a display element includes a first electrode, a second electrode, and a dielectric layer on the second electrode. The dielectric layer has recess regions therein. The display element includes an opaque layer on the second electrode within each recess region and a fluid with colorant particles between the first electrode and the second electrode.Type: ApplicationFiled: July 6, 2010Publication date: January 12, 2012Inventors: Jeffrey Todd Mabeck, Niranjan Thirukkovalur
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Patent number: 8093808Abstract: An organic EL device includes: a base body; pixels that are arranged in the base body and emit light beams having either of at least two different colors from among red, green and blue; an reflection layer that has optical reflectivity and arranged on the base body; an anti-reflection layer that is arranged on the reflection layer and has optical reflectivity lower than that of the reflection layer; an insulation layer that is arranged on the anti-reflection layer and has optical transmittance; a first electrode that is arranged in each pixel on the insulation layer and has optical transmittance; an organic functional layer that is arranged on the first electrode and includes at least a luminescent layer; a second electrode that is arranged on the organic functional layer and has optical reflectivity and optical transmittance; and an optical resonator that is formed between the reflection layer and the second electrode to resonate the light from the organic functional layer, wherein the optical resonator hasType: GrantFiled: March 25, 2010Date of Patent: January 10, 2012Assignee: Seiko Epson CorporationInventor: Takeshi Koshihara
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Publication number: 20120001531Abstract: A light emitting diode (LED) based lamp is provided that may include a housing, a LED module having at least one LED to emit light, and a lens to receive the light from the LED and to guide the light to a specific area. An outer circumference of the lens may have a different surface roughness than an inner surface of the lens or may have a different light transmissivity than the inner surface of the lens. The outer circumference of the lens may minimize light from being transmitted to a region outside the specific area.Type: ApplicationFiled: January 28, 2011Publication date: January 5, 2012Inventors: Hankyu CHO, Hyunha Kim, Euna Moon
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Patent number: 8088475Abstract: A conventional thin membrane of aerogel, although achieving a low refractive index, retains some difficulty when it is to be applied to display apparatuses or the like, because of its low strength. Membranes produced by other methods are difficult to simultaneously achieve low refractive index and sufficient strength. The present invention provides an anti-reflecting membrane which is formed at least on one side of a plate transmitting visible light, is composed of fine inorganic oxide particles and a binder, contains a number of pores inside, and has an arithmetic average surface roughness (Ra) below 6 nm. The present invention also provides preferred embodiments of the display apparatuses provided with the membrane.Type: GrantFiled: January 21, 2005Date of Patent: January 3, 2012Assignee: Hitachi, Ltd.Inventors: Hiroshi Sasaki, Yasushi Tomioka, Masaya Adachi, Makiko Sugibayashi, Ikuo Hiyama, Katsumi Kondou
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Publication number: 20110316409Abstract: Disclosed is a light-emitting device package including; a body having a cavity formed therein, a light source mounted in the cavity, a resin layer which fills the cavity and is transmissive, and at least one optical sheet provided on the resin layer, wherein the optical sheet includes a first layer, and a second layer which is provided on the first layer and has a plurality of linear prisms, wherein the first layer has a first refractive index and the resin layer has a second refractive index, and wherein the first refractive index is equal to or greater than the second refractive index. Accordingly, the light-emitting device package may have improved luminous efficacy, enable uniform distribution of emitted light, and prevent degradation of a phosphor.Type: ApplicationFiled: June 27, 2011Publication date: December 29, 2011Inventor: Bumchul CHO
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Publication number: 20110309736Abstract: According to one embodiment, a light emitting device includes a first lead, a light emitting element, a second lead and a molded body. The first lead includes a die pad portion having a major surface and a recess provided in the major surface, and a bent portion bent toward above the major surface. The light emitting element is bonded to a bottom surface of the recess. The second lead with one end portion is opposed to one end portion of the first lead. The molded body covers the light emitting element, the bent portion, the die pad portion, and the one end portion of the second lead, and is made of a resin. A position of barycenter of the molded body is set between a lower surface of the die pad portion and a plane including an upper end of the bent portion.Type: ApplicationFiled: December 16, 2010Publication date: December 22, 2011Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tetsuya Muranaka, Yasunori Nagahata
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Patent number: 8076831Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.Type: GrantFiled: November 2, 2010Date of Patent: December 13, 2011Assignee: Bridgelux, Inc.Inventor: Frank Shum
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Patent number: 8072134Abstract: Light-emitting devices, and related components, systems and methods are disclosed.Type: GrantFiled: November 26, 2007Date of Patent: December 6, 2011Assignee: Luminus Devices, Inc.Inventors: Alexei A. Erchak, Elefterios Lidorikis, Chiyan Luo
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Publication number: 20110291546Abstract: Disclosed herein is a low pressure discharge lamp having a coating disposed upon at least a portion of inner lead-in wires, wherein the coating comprises refractory nanoparticles. Also disclosed herein, in particular, are fluorescent lamps having a coating disposed upon at least a portion of inner lead-in wires, the coating comprising refractory oxide nanoparticles having a median primary particle size of less than about 70 nm, with a thickness of from about 0.5 micrometer to about 10 micrometer. Disclosed advantages may include lessened end discoloration over the operational lifetime of the lamp, enhanced lumen maintenance, and inhibited mercury consumption.Type: ApplicationFiled: May 25, 2010Publication date: December 1, 2011Inventor: Jon Bennett JANSMA
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Patent number: 8067891Abstract: A light bulb includes an A/C driven LED lacking a phosphor coating, the LED covered by a lens having a phosphor coating.Type: GrantFiled: April 27, 2009Date of Patent: November 29, 2011Inventor: Jia H. Deng
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Patent number: 8067884Abstract: A lighting arrangement comprising: a light reflective enclosure; at least one radiation source housed within the enclosure and operable to generate excitation light of a first wavelength range; a substantially spherical optical component mounted over the enclosure opening and at least one phosphor operable to absorb at least a portion of the excitation light and to emit light of a second wavelength range, wherein light generated by the arrangement comprises the combined light of the first and second wavelength ranges and wherein the at least one phosphor material is provided as a layer on at least a part of the surface of the optical component that is enclosed within the volume of the enclosure when the component is mounted to the enclosure.Type: GrantFiled: November 24, 2009Date of Patent: November 29, 2011Assignee: Intematrix CorporationInventor: Yi-Qun Li
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Patent number: 8058783Abstract: An organic light emitting diode (OLED) display device is disclosed. In one embodiment, the OLED device includes 1) an organic light emitting element configured to emit light, 2) a cholesteric liquid crystal (CLC) layer formed over the organic light emitting element and configured to selectively transmit or reflect circularly polarized light and 3) a translucent metal layer formed on the CLC layer and configured to partially transmit and partially reflect incoming light. According to at least one embodiment, the OLED can suppress reflection of external light while minimizing loss of light generated from the organic emission layer.Type: GrantFiled: July 23, 2009Date of Patent: November 15, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Soon-Ryong Park, Hee-Seong Jeong, Woo-Suk Jung, Noh-Min Kwak, Chul-Woo Jeong, Eun-Ah Kim, Hee-Chul Jeon, Joo-Hwa Lee
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Patent number: 8053987Abstract: It is an object of the present invention to provide a PDP and an FED with excellent visibility and a high level of reliability that each have an antireflective function by which reflection of external light can be reduced. A plurality of adjacent pyramidal-shaped projections and an antireflective layer equipped with a covering film that covers the projections are provided. The reflection of light is prevented by the index of refraction of incident light from external being changed by a pyramid, which is a physical shape, projecting out toward an external side (atmosphere side) of a substrate that is to be used as a display screen as well as by the covering film used to cover the projections being formed of a material that has a higher index of refraction than the index of refraction of the pyramidal projection.Type: GrantFiled: December 5, 2007Date of Patent: November 8, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuji Egi, Jiro Nishida, Takeshi Nishi
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Patent number: 8053962Abstract: A fluorescent lamp having a protective polymeric sleeve to provide impact resistance and contain fragments if the lamp shatters. A UV-blocking layer is coated on the outside of the glass envelope of the lamp or on the inside of the sleeve to help protect the polymeric sleeve from UV degradation. The UV-blocking layer includes a UV-blocking component of Al2O3 or ZnO or SiO2 or TiO2 or mixtures thereof.Type: GrantFiled: May 4, 2009Date of Patent: November 8, 2011Assignee: General Electric CompanyInventors: James Michael Kostka, Jon B. Jansma
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Patent number: 8044589Abstract: A plasma display apparatus may include an external light shielding sheet attached to a front of a panel to absorb and shield externally incident light. Accordingly, a black image can be implemented close to an original color and bright and dark room contrast can be improved. Furthermore, thickness of the external light shielding sheet and height of a pattern unit have a given ratio in order to properly secure an aperture ratio of the external light shielding sheet. Accordingly, light emitted into the panel can transmit toward a user side.Type: GrantFiled: March 30, 2007Date of Patent: October 25, 2011Assignee: LG Electronics Inc.Inventors: Yu Park, Tae Deok Seo, Jun Hwan Ju
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Patent number: 8044585Abstract: A light-emitting diode includes a package, a light-emitting diode chip and a lens. The light-emitting diode chip is mounted on the package. The lens is mounted on the package and envelops the light-emitting diode chip, wherein the lens has a plane region surrounding the package and a bumpy region with a plurality of bumps fully arranged thereon adjacent to the plane region.Type: GrantFiled: May 2, 2006Date of Patent: October 25, 2011Assignee: Chain Technology Consultant Inc.Inventor: Ming-Hsien Shen
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Publication number: 20110254427Abstract: Disclosed herein is a color electronic paper display device. The color electronic paper display device includes a barrier rib structure body that has a cavity partitioning rotating balls; and an electrode structure that is provided in the barrier rib structure body and applies voltage to the rotating balls, wherein the barrier rib structure body has a multilayer barrier rib structure formed of a lower barrier rib and an upper barrier rib, having different light absorptions.Type: ApplicationFiled: July 23, 2010Publication date: October 20, 2011Inventors: Young Woo Lee, Sang Jin Kim, Sang Moon Lee, Hwan Soo Lee
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Patent number: 8040062Abstract: Provided is an electroconductive laminate having a substrate and an electroconductive film formed on the substrate, wherein the electroconductive film has a multilayer structure having an oxide layer and a metal layer alternately laminated from the substrate side in a total layer number of (2n+1) (wherein n is an integer of at least 1); the oxide layer predominantly contains zinc oxide and titanium oxide having a refractive index of at least 2.3; the oxide layer has an atomic ratio of titanium to a total amount of titanium and zinc of 15-50 atomic %; and the metal layer predominantly contains silver or a silver alloy. Also provided is a process for producing the electroconductive laminate.Type: GrantFiled: May 30, 2007Date of Patent: October 18, 2011Assignee: Asahi Glass Company, LimitedInventors: Tamotsu Morimoto, Hideaki Miyazawa, Masahiro Fusen, Koichi Kanda, Susumu Nakagama