With Optical Device Or Special Ray Transmissive Envelope Patents (Class 313/110)
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Patent number: 8541931Abstract: A lamp comprises: a thermally conductive body; a plurality of LEDs configured as an array and mounted in thermal communication with the body and a light reflective hood located in front of the plane of light emitting diodes. The hood has at least two frustoconical light reflective surfaces that surround the array of LEDs and are configured such that in operation light emitted by the lamp is within a selected emission angle (beam spread). The hood is configured such that in operation a variation in illuminance (luminous flux per unit area incident on a surface) is 10% or less over approximately a third to one half of the selected emission angle.Type: GrantFiled: March 10, 2010Date of Patent: September 24, 2013Assignee: Intematix CorporationInventor: Haitao Yang
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Patent number: 8541945Abstract: Embodiment of the invention include a lighting device having a tubular current-conductive housing, a lamp assembly, an insulator sleeve, and a diffuser globe. The lamp assembly can include one or more lamps such as one or more light emitting diodes (LEDs). The diffuser globe is preferably a fumed blown glass diffuser globe having a concentrated region for refracting and diffusing light. The diffuser globe can include an internal diffuser for further refraction and control of the light. Embodiments also include a solar powered hook-shaped luminaire having a solar panel, a body member, and a diffuser globe. Embodiments further include a shatter resistant, portable, remote controllable, programmable, rechargeable, and floatable lighting device and/or globe luminaire, which can be automatically, manually, remotely, and/or locally controlled.Type: GrantFiled: June 3, 2011Date of Patent: September 24, 2013Assignee: Schwarz Reliance LLCInventor: Samuel J. Schwarz
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Publication number: 20130241390Abstract: The present disclosure relates generally to optical media precursors and/or encapsulants, the optical media and encapsulants configurable for use in lighting devices. Specifically, the optical media and/or encapsulant material comprises at least one silsesquioxane moiety and at least one transition metal and/or lanthanide metal. Methods of reducing degradation of the optical media and/or encapsulant from heat and/or optical flux exposure using same are disclosed. Methods of increasing refractive index of an optical media and/or encapsulant using silsesquioxane and transition metal and/or lanthanide metal are disclosed.Type: ApplicationFiled: March 14, 2012Publication date: September 19, 2013Inventor: PETER GUSCHL
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Publication number: 20130221829Abstract: A lens includes a first lens section and a second lens section, which are integrally formed. The first lens section is formed in a hemispherical shell shape including a first recess opened toward one side of an optical axis direction in which light from a light source is made incident. The second lens section is formed in a hemispherical shell shape including a second recess opened toward the other side of the optical axis direction.Type: ApplicationFiled: August 29, 2011Publication date: August 29, 2013Applicant: Toshiba Lighting & Technology CorporationInventors: Toshitake Kitagawa, Makoto Sakai
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Publication number: 20130221835Abstract: Optical elements (130) are attached to a support film (110) at select locations, the select locations corresponding to locations of light emitting elements (140) on another substrate, e.g. the substrate of the title (150).The film is placed on the substrate containing the light emitting elements such that the optical elements are in contact with their corresponding light emitting elements. The optical elements are laminated to the light emitting elements, and the support film is removed. The optical elements may include wavelength conversion elements, lens elements, combinations of elements, and so on.Type: ApplicationFiled: October 20, 2011Publication date: August 29, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Grigoriy Basin, Paul Scott Martin
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Publication number: 20130214667Abstract: According to an exemplary embodiment, a lighting apparatus includes a light source that includes a light emitting element, and a member which is irradiated with light emitted from the light source and which is formed of resin having absorptivity of 15% or less in a wavelength in which intensity is 10% of a peak intensity, at a wavelength side that is shorter than an intensity peak of a spectrum of blue light emitted from the light source.Type: ApplicationFiled: September 14, 2012Publication date: August 22, 2013Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Yoshiyuki Matsunaga, Hiroki Tamai, Kazunari Higuchi
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Patent number: 8496355Abstract: A reflector element is provided for a lighting device and includes a light transmission/reflection component that includes a light conductor containing therein light diffusion particles. The light transmission/reflection component includes a light entrance section, a light transmission/reflection section, and a light emission section. The reflector element is coupled to a light-emitting diode (LED) lighting unit, or a heat dissipation element, or a cover. The light entrance section of the reflector element is set in front of the LED lighting unit and the light transmission/reflection section is set at an opposite side to the light entrance section in order to redirect an incident light to the light emission section. Due to the effect provided by the light diffusion particles for refraction, light is uniformly distributed and emitted through the cover.Type: GrantFiled: December 22, 2009Date of Patent: July 30, 2013Inventors: Hsueh-Chung Kao, Chao-Jen Wang
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Patent number: 8487519Abstract: A light emitting device includes an electroluminescent element (1), a housing (2) and current supply device for the electroluminescent element. A micro-optical element (12) is coupled to the housing (2) and arranged such that it influences light emitted by the electroluminescent element (1). The micro-optical element may be made up of micro-optical structures on a surface of an at least partially transparent layer (11) coupled to the housing (2). The micro-optical structures may, for example, be manufactured by directly imprinting them on the at least partially transparent layer (11) coupled to the housing or by casting an at least partially transparent layer (11) including the electroluminescent element to a body of the light emitting device. The diffractive optical features of the micro-optical element (12) are designed according to the position, size and shape of the one or more electroluminescent elements (1), and output light distribution of the one or more electroluminescent elements (1).Type: GrantFiled: November 4, 2003Date of Patent: July 16, 2013Assignee: Heptagon Micro Optics Pte. Ltd.Inventors: Ville Kettunen, Hartmut Rudmann, Markus Rossi
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Patent number: 8476825Abstract: An organic electroluminescent light source device including a first transparent electrode layer, a light-emitting layer, a second transparent electrode layer, and a reflective layer having a reflective surface, in this order from a light-emitting surface side, and further including a structural layer X that is provided between the second transparent electrode layer and the reflective surface and is in contact with the reflective surface, wherein the reflective surface has a concavo-convex structure, the concavo-convex structure has a plurality of concavo-convex structure units formed of depressions or protrusions, and a refractive index n of the structural layer X, an inclination angle ?×1 (°) of the concavo-convex structure units, and a mean inclination angle ?×2 (°) of the concavo-convex structure at the reflective surface satisfy ?×1?sin?1(1/n) and {90?sin?1(1/n) }/3??×2?sin?1(1/n).Type: GrantFiled: October 13, 2010Date of Patent: July 2, 2013Assignee: Zeon CorporationInventor: Hiroyasu Inoue
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Patent number: 8476814Abstract: A light utilization efficiency of a high-pressure discharge lamp is improved even in a case of reducing the size of a reflection mirror without using an auxiliary reflection mirror. In a lamp device where a portion of lights emitted from a discharge bulb to the periphery thereof in forward and backward directions for a predetermined range of angle is reflected at a concave reflection mirror and illuminated to a light collection area of a predetermined size formed forward of the lamp, a prism surface having an angle of refracting or deflecting at least a portion of lights emitted from the discharge bulb that is not reflected at the concave reflection mirror to the light collection area is formed to the outer peripheral surface of the discharge bulb.Type: GrantFiled: December 3, 2008Date of Patent: July 2, 2013Assignees: Iwasaki Electric Co., Ltd., Fujii Optical Co., Ltd.Inventors: Takashi Ibi, Sumio Uehara, Kyouichi Maseki, Yosuke Kano, Toshitaka Higuchi
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Patent number: 8471445Abstract: A light bulb having anti-reflective coatings on an inner surface and/or an outer surface of the shell of the light bulb. The anti-reflective coatings reduce light loss due to reflections at the interfaces between the interior of the bulb and the shell and between the shell and the exterior of the bulb. The light source may be either incandescent, fluorescent or LED.Type: GrantFiled: August 14, 2009Date of Patent: June 25, 2013Assignee: Switch Bulb Company, Inc.Inventor: Ronald J. Lenk
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Patent number: 8472191Abstract: An image displaying apparatus, which is excellent in heat radiation efficiency and has an excellent back design, includes a display panel for displaying an image; a heat generating member provided on a back side of the display panel; and a cabinet for covering the display panel and the heat generating member at least from the back side of the display panel. In the cabinet, an aperture is provided at a position facing the heat generating member, and an opening/closing unit enables switching between closing and opening of the aperture. In a state that the aperture is opened by the opening/closing unit and one part of a heat-transfer member is positioned on a side of the cabinet opposite to the display panel, the other part of the heat-transfer member extends through the aperture so that the heat-transfer member can thermally be connected to the heat generating member.Type: GrantFiled: May 23, 2011Date of Patent: June 25, 2013Assignee: Canon Kabushiki KaishaInventors: Takeshi Yamamoto, Kinya Kamiguchi
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Patent number: 8461749Abstract: 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, 2011Date of Patent: June 11, 2013Assignee: Bridgelux, Inc.Inventor: Frank Shum
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Patent number: 8461754Abstract: The disclosure provides a light-transmissive glass halogen filament tube with a filament light source having a coil concentricity ratio of not greater than 20% disposed therein, the filament tube having a multi-layer optical interference coating deposited on the outer surface thereof that transmits visible radiation from about 400-750 nm and reflects infra red radiation from about 800-2500 nm back to the filament for re-absorption, the coated filament tube exhibiting an LPW gain of at least 26%.Type: GrantFiled: December 21, 2009Date of Patent: June 11, 2013Assignee: General Electric CompanyInventors: Ashfaqul Islam Chowdhury, Leonard Edward Hoegler, William Robert Wright
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Patent number: 8456070Abstract: The present invention provides an optical layered body having a good antistatic performance and good optical properties as well as an excellent durability. The present invention provides an optical layered body, comprising: an antistatic layer on a light-transmitting substrate, wherein the antistatic layer is a resin thin film layer containing at least an organic conductive material and a nonconductive polymeric material which is a resin having a glass transition temperature of 60° C. or higher or a resin obtainable by a reaction between a resin having a glass transition temperature of 60° C. or higher and a cross-linking agent.Type: GrantFiled: December 27, 2007Date of Patent: June 4, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kiyoshi Itoh, Yoko Kinoshita, Kiyotaka Matsui
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Patent number: 8436519Abstract: The present invention provides an improved lamp, and lighting fixture incorporating such a lamp, wherein the lamp's envelope includes a special optical coating system configured to more effectively reflect infrared light back toward the lamp filament, thereby enhancing the lamp's luminous efficacy. Multiple embodiments are disclosed, including coating systems deposited on one or both surfaces of the lamp envelope and including coating systems incorporating either a dielectric coating alone or specific combinations of a dielectric coating and a transparent conductive coating.Type: GrantFiled: July 25, 2007Date of Patent: May 7, 2013Inventor: David W. Cunningham
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Publication number: 20130107169Abstract: Disclosed are a light source module and a lighting apparatus having the same. The light source module includes a body having a cavity, a plurality of lead frames in the cavity, a light emitting chip on at least one of the lead frames, a polymer layer disposed on the body to refract light emitted from the light emitting chip, a first electrode layer disposed on the polymer layer to emit incident light, and a second electrode layer interposed between the polymer layer and the body to transmit the light emitted from the light emitting chip.Type: ApplicationFiled: October 22, 2012Publication date: May 2, 2013Inventor: Youngbong Yoo
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Patent number: 8421325Abstract: An RF electrodeless plasma lamp with improved efficiency in higher lumens per watt includes a waveguide body, in which an RF signal drives the entire structure at the resonant frequency of the structure. The resonant frequency of the structure is lowered by increasing the overall capacitance of the waveguide body by adding at least two layers of dielectric material between the input feed and the bulb of the lamp. The layered structure can include an air cavity disposed between a dielectric layer and the input feed. In lowering the resonant frequency of the lamp, the device is capable of using RF amplifiers that have higher efficiency, and thus has a higher lumens per watt ratio.Type: GrantFiled: June 18, 2010Date of Patent: April 16, 2013Assignee: Topanga Technologies, Inc.Inventors: Mehran Matloubian, Frederick M. Espiau
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Patent number: 8410686Abstract: Disclosed herein is a display device provided with: (A) a plurality of light-emitting devices comprising a first electrode, an organic layer including a light-emitting layer and a second electrode configured to resonate light, which is generated in the light-emitting layer, between a first interface defined by an interface between the first electrode and the organic layer and a second interface defined by an interface between the second electrode and the organic layer, and (B) a transparent upper substrate having a first side facing the second electrode and a second side located on an opposite side of the first side, and fixed above the second electrode.Type: GrantFiled: July 1, 2011Date of Patent: April 2, 2013Assignee: Sony CorporationInventors: Jiro Yamada, Mitsuhiro Kashiwabara, Toshihiro Fukuda, Reo Asaki, Gentaro Kano
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Patent number: 8405290Abstract: A lamp 1 comprises an oscillator and amplifier source 2 of microwave energy, typically operating at 2.45 or 5.8 GHz or other frequencies within an ISM band. The source passes the microwaves via a matching circuit 3 to an antenna 4 extending into a re -entrant 5 in a lucent waveguide 6. This is of quartz and has a central cavity 7 accommodating a bulb 8. The bulb is a sealed tube 9 of quartz and contains a fill of noble gas and a microwave excitable material, which radiates visible light when excited by microwaves. The bulb has a stem 10 received in a stem bore 11 extending from the central cavity. The waveguide is transparent and light from the bulb can leave it in any direction, subject to any reflective surfaces. Microwaves cannot leave the waveguide, which is limited at its surfaces by a Faraday cage.Type: GrantFiled: May 14, 2011Date of Patent: March 26, 2013Inventors: Barry Preston, Andrew Simon Neate
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Patent number: 8405298Abstract: Light-emitting devices, and related components, systems and methods are disclosed.Type: GrantFiled: November 2, 2011Date of Patent: March 26, 2013Assignee: Luminus Devices, Inc.Inventors: Alexei A. Erchak, Elefterios Lidorikis, Chiyan Luo
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Patent number: 8405291Abstract: A light source comprising a lucent waveguide of solid dielectric material having: an at least partially light transmitting Faraday cage surrounding the waveguide, a bulb cavity within the waveguide and the Faraday cage and an antenna re-entrant within the waveguide and the Faraday cage and a bulb having a microwave excitable fill, the bulb being received in the bulb cavity.Type: GrantFiled: November 14, 2008Date of Patent: March 26, 2013Inventor: Barry Preston
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Patent number: 8400051Abstract: A light-emitting device is provided that can extract light in all directions and that has wide directivity. This light-emitting device includes: an elongated bar-shaped package extending sideways, the package being formed such that a plurality of leads are formed integrally with a first resin with part of the leads exposed; a light-emitting element that is fixed onto at least one of the leads and that is electrically connected to at least one of the leads; and a second resin sealing the light-emitting element. In the light-emitting device, the first resin and the second resin are formed of optically transparent resin, and the leads have outer lead portions used for external connection and protruding sideways from both left and right ends of the package.Type: GrantFiled: January 13, 2009Date of Patent: March 19, 2013Assignees: Sanyo Electric Co., Ltd., Ushio Denki Kabushiki KaishaInventors: Kunihiko Hakata, Tomomi Matsuoka
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Patent number: 8395305Abstract: A display device comprises a substrate and a laminate structure formed on the substrate and comprising a plurality of layers including a display region. The laminate structure has a recessed/projected portions at least one of an outermost surface of display side and an interface between the layers. The projected portions of the recessed/projected portions have a mean circle-equivalent diameter ranging from 50 nm to 250 nm with the standard deviation of circle-equivalent diameter of the projected portions being within the range of 10 to 50% of the mean circle-equivalent diameter, and a mean height ranging from 100 nm to 500 nm with the standard deviation of height being within the range of 10 to 50% of the mean height. The projected portions have a circularity coefficient ranging from 0.6 to 1, and an area ratio ranging from 20 to 75%.Type: GrantFiled: March 24, 2009Date of Patent: March 12, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Akira Fujimoto, Koji Asakawa
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Publication number: 20130057137Abstract: A beamshaping optical stack (108), a light source and a luminaire is provided. The beamshaping optical stack (108) is to be optically coupled to a light emitting surface of a light emitter. The beamshaping optical stack (108) comprises a first light transmitting layer (120) and a second light transmitting layer (118). The second light transmitting layer (118) comprises a first side (110) which is optically coupled to the first light transmitting layer (120) to receive light from the first light transmitting layer (120). The second light transmitting layer (118) further comprises a second side (106) which is substantially opposite the first side (110) to emit the received light into another optical medium. The second light transmitting layer (118) further comprises a geometrical structure (116) at the second side (106) to obtain a decreasing light emission with increasing light emission angles (9a) with respect to a normal (112) to the first side (110).Type: ApplicationFiled: May 24, 2011Publication date: March 7, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventor: Ferry Zijp
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Patent number: 8390207Abstract: Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.Type: GrantFiled: October 8, 2008Date of Patent: March 5, 2013Assignee: Koninklijke Philipe Electronics N.V.Inventors: Kevin J. Dowling, Ihor A. Lys, Brian Roberge, Ryan C. Williamson, Ron Roberts, Michael Datta, Tomas Mollnow, Frederick M. Morgan
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Publication number: 20130026902Abstract: A LED package for increasing illumination and spotlighting includes a base, a LED chip and an enclosure. The enclosure is made of an optically transparent silicone for increasing the illuminative range. In addition, a light-guide curved surface can be placed on the inner side of the enclosure for spotlighting the emitting light in a certain orientation.Type: ApplicationFiled: July 28, 2011Publication date: January 31, 2013Inventor: Chao-Chuan CHEN
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Patent number: 8362697Abstract: There is provided a display apparatus that can improve the protective function and light utilization efficiency of organic EL devices and that has a simple structure. The display apparatus includes a plurality of organic EL devices formed on a substrate and a protective layer formed on the organic EL devices. The protective layer includes a first protective layer made of an inorganic material, a second protective layer made of a resin and having a microlens formed therein, and a third protective layer made of an inorganic material.Type: GrantFiled: August 13, 2010Date of Patent: January 29, 2013Assignee: Canon Kabushiki KaishaInventors: Kiyofumi Sakaguchi, Yasushi Iwakura, Kohei Nagayama
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Patent number: 8350451Abstract: Provided are multi-component films useful as optical display filters. The films include a transparent substrate, a nucleation layer, an electrically-conductive layer, a barrier layer, and a dielectric layer. The films can provide high visible transmission, are corrosion-resistant, and can provide shielding from electromagnetic interference (EMI shielding). The optical display filters are useful as components of active optical devices such as display panels including liquid crystal display panels such as those used on mobile hand-held phones.Type: GrantFiled: June 5, 2008Date of Patent: January 8, 2013Assignee: 3M Innovative Properties CompanyInventors: Clark I. Bright, John D. Le, Robert C. Fitzer, Stephen P. Maki
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Patent number: 8350452Abstract: A light bulb is disclosed comprising a base that has an enclosure and a socket connector and a base connector. The enclosure includes conductors for conveying electric power from the socket connector to the base connector. A selectively detachable bulb assembly is further included and has a bulb connector that is mechanically and electrically cooperative with the base connector to secure the bulb assembly to the base and conduct electrical power therethrough. The bulb assembly further includes an inner bulb having a transparent quartz inner layer with a transparent silicon outer layer, and a high intensity discharge (HID) lamp electrically connected to the bulb connector. An outer bulb contains the inner bulb and likewise comprises a transparent quartz inner layer with a transparent silicon outer layer. An instant-on bulb illuminates immediately until the HID lamp reaches its full luminosity.Type: GrantFiled: February 21, 2012Date of Patent: January 8, 2013Inventor: Shaam P. Sundhar
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Patent number: 8351208Abstract: An electro-optical device may include: an electro-optical panel, a holding member that includes a main body part arranged to surround the periphery of the electro-optical panel, and a holding part protruded from the main body part and holding the electro-optical panel, and a heat radiating member that is disposed opposing the electro-optical panel through an opening of the holding member from the opposite side of the light incident plane of the electro-optical panel.Type: GrantFiled: February 11, 2011Date of Patent: January 8, 2013Assignee: Seiko Epson CorporationInventors: Hidekazu Hirabayashi, Yoshitaka Hama
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Patent number: 8344603Abstract: An organic EL display apparatus includes a plurality of pixels and a lens array which includes a light-condensing lens portion and a flat portion disposed on the light-emitting surface side of each pixel. Each pixel includes a light-emitting layer contained between a pair of electrodes. Part of the light emitted from the light-emitting layer is condensed by the light-condensing lens portion. A top surface of the light-condensing lens portion overlies the light-emitting region, and a part of the light-condensing lens portion is located outside the light-emitting region.Type: GrantFiled: August 4, 2011Date of Patent: January 1, 2013Assignee: Canon Kabushiki KaishaInventors: Kiyofumi Sakaguchi, Noa Sumida, Kohei Nagayama
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Patent number: 8342716Abstract: A LED head sink module includes a LED module, which comprises a circuit substrate, a LED chip installed in the circuit substrate, a packing cup molded on the circuit substrate around the LED chip and a lens molded on the packing cup over the LED chip, a heat sink, which has a base and a flat mounting block located on the bottom side of the base for stopping against the circuit substrate of the LED module for absorbing waste heat, a bracket, which has a center opening that receives the circuit substrate of the LED module, first retaining members for fastening to a retaining portion at the periphery of the packing cup and second retaining members for fastening to the flat mounting block of the heat sink, and a water seal sandwiched between the LED module and the bracket to seal off outside moisture and dust.Type: GrantFiled: April 16, 2010Date of Patent: January 1, 2013Assignee: KWO GER Metal Technology, Inc.Inventor: Hsuan-Chih Lin
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Patent number: 8339033Abstract: A light emitting element includes a resonator structure which has a first reflecting member, a second reflecting member, and a light emission layer placed between the first reflecting member and the second reflecting member, and part of light resonated between the first reflecting member and the second reflecting member is transmitted through the first reflecting member or the second reflecting member in the resonator structure. A wavelength at which a resonator output spectrum from the resonator structure has a maximum value is located between a wavelength at which an inner light emission spectrum of the light emission layer has a maximum value and a wavelength at which relative luminous efficiency has a maximum value.Type: GrantFiled: June 11, 2009Date of Patent: December 25, 2012Assignee: Pioneer CorporationInventors: Toshihiro Yoshioka, Toshiharu Uchida
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Publication number: 20120313534Abstract: A lamp is provided which is suitable for use in low-profile applications. The lamp includes a light source and a lens. The lens includes a first surface opposite a second surface, where the second surface includes an injection surface and the first surface includes a multi-faceted optical element converging towards the injection surface. The light source injects light into the lens via the injection surface and the light refracts through the first surface while total internally reflecting off the first surface and the second surface toward the periphery of the lens.Type: ApplicationFiled: June 8, 2011Publication date: December 13, 2012Inventors: Lucas Urtiga, Eden Dubuc, Sebastien Magnan
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Publication number: 20120313501Abstract: A display apparatus has an organic EL element which emits red color, an organic EL element which emits green color, and an organic EL element which emits blue color, in which a structure for improving light emission efficiency is provided only at the light emission side of the organic EL element which emits blue color.Type: ApplicationFiled: June 4, 2012Publication date: December 13, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Nobutaka Mizuno
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Patent number: 8330172Abstract: An organic light emitting diode display capable of reducing the shortening of image stacking lifetime caused by the residue of the barrier ribs produced during the forming of the barrier ribs is provided. The display includes: a substrate; a first pixel electrode formed on the substrate; barrier ribs formed on the substrate, and having an opening exposing the first pixel electrode; a second pixel electrode formed on the first pixel electrode; an organic light emitting member formed on the second pixel electrode; an organic light emitting member formed on the second pixel electrode; a common electrode formed on the organic light emitting member; and a thin film encapsulation member covering the common electrode. The width of the second pixel electrode is greater than the exposure width of the first pixel electrode exposed through the opening of the barrier ribs.Type: GrantFiled: July 11, 2011Date of Patent: December 11, 2012Assignee: Samsung Display Co., Ltd.Inventors: Jin-Baek Choi, Ji-Young Choung, Joon-Gu Lee, Se-Jin Cho, Won-Jong Kim, Hee-Joo Ko, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
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Patent number: 8324790Abstract: A high illumination LED bulb includes a transparent lamp holder and a transparent reflective envelope having an inner face coated with a reflective membrane having light transmittance characteristic. A chamber is defined between the transparent lamp holder and the transparent reflective envelope and receives an actuator, a radiator and a light emitting module electrically connected to the actuator. The light emitting module includes a substrate disposed on the radiator and at least one LED disposed on the substrate. Light radiated from the LED is transmitted to produce superior projection beam by the transparent reflective envelope and reflected to produce inferior projection beam by the reflective membrane. Reflected halo formed by projection of the superior projection beam and the inferior projection beam on the transparent lamp holder and the transparent reflective envelope can form side projected halo, thereby radiating light with a full emission angle.Type: GrantFiled: June 7, 2011Date of Patent: December 4, 2012Inventor: Wen-Sung Hu
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Patent number: 8310149Abstract: Disclosed is an OLED device including an organic layer disposed between an anode and a cathode, and a mirror layer on the anode or cathode. The organic layer is structured into electroluminescent zones and inactive zones, while the mirror layer is structured into nontransparent zones and transparent zones. Via an at least partial alignment of these structures, the OLED device can be made transparent for environmental light and simultaneously emissive in a dominant direction.Type: GrantFiled: October 19, 2009Date of Patent: November 13, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Herbert Lifka, Cristina Tanase, Coen A. Verschuren
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Patent number: 8304994Abstract: An electrodeless plasma lamp and a method of generating light are provided. The plasma lamp may comprise a power source to provide radio frequency (RF) power and a lamp body to receive the RF power. The lamp body may include a dielectric material having a relative permittivity greater than 2. A bulb is provided that contains a fill that forms a light emitting plasma when the RF power is coupled to the fill. Collection optics is provided to direct the light along an optical path to an aperture, wherein the optical path includes at least one reflective surface and at least two refractive surfaces.Type: GrantFiled: October 9, 2009Date of Patent: November 6, 2012Assignee: Luxim CorporationInventor: Markus Duelli
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Patent number: 8294341Abstract: An organic electroluminescent device comprising: a transparent substrate; a first electrode; a second reflective electrode and an organic light-emitting region for emitting light of a wavelength 1 from a recombination zone within the light-emissive region, and a microcavity formed between the substrate and the second electrode, the distance between the transparent substrate and the second electrode being [(¼ni)l+(½nj)al]±40 nm, where a is zero or a positive integer, ni is an average refractive index of the material disposed between the recombination zone and the second electrode and nj is an average refractive index of the material disposed between the recombination zone and the substrate.Type: GrantFiled: December 15, 2006Date of Patent: October 23, 2012Assignee: CDT Oxford LimitedInventors: Matthew Roberts, Clare Foden
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Patent number: 8283857Abstract: An image display apparatus, which has a high contrast and can suppress the contrast variation and the effect of unwanted reflections regardless of the environment, comprises a luminescent layer; an excitation source which excites the luminescent layer; a front layer which obtains display light by transmitting light generated by the luminescent layer excited by the excitation source; and a periodic structure which is provided between the front layer and the luminescent layer and has a periodic refractive index distribution in a surface parallel to the front layer, wherein the periodic structure satisfies a relation of a following expression and the periodic interval of the periodic structure is 1 ?m or greater and 3 ?m or less. The expression being given by, 1<Nsub?Neff where Neff denotes an effective refractive index of the periodic structure and Nsub denotes a refractive index of a medium constituting the front layer.Type: GrantFiled: July 27, 2010Date of Patent: October 9, 2012Assignee: Canon Kabushiki KaishaInventor: Kiyokatsu Ikemoto
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Publication number: 20120235554Abstract: A light emitting apparatus has a light emitting element arranged on a substrate and a light flux controlling member. The light flux controlling member has: a light control/emission surface that controls a traveling direction of light; a concavity that allows a main beam to be incident inside; and a back surface that extends in a radial direction from an opening rim part of the concavity and that allows sub-beams to be incident inside. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface of the light flux controlling member. The substrate and the back surface of the light flux controlling member are placed opposite to one another without intervention of a reflective sheet therebetween.Type: ApplicationFiled: May 30, 2012Publication date: September 20, 2012Inventors: Masao YAMAGUCHI, Yasuyuki Fukuda
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Patent number: 8269406Abstract: A mercury-free high-pressure gas discharge lamp (HID [high intensity discharge] lamp) is described which is provided for use in automotive technology. To achieve improved lamp characteristics, in particular a substantially equal luminous efficacy in comparison with lamps of the same power and a mercury-free gas filling, as well as a highest possible burning voltage, the discharge vessel (1) is provided in its wall regions (10) which are lowermost in the operational position with a coating (15) which reflects at least a portion of the infrared radiation generated during operation, such that the temperature of the coldest spots, and in particular of the light-generating substances collected there, is raised, with the result that the light-generating substances can enter the gas phase in sufficient quantities also without mercury, and in particular with the use of a metal halide as a voltage-gradient generator.Type: GrantFiled: January 30, 2003Date of Patent: September 18, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Michael Haacke, Marc F. R. Janssen
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Patent number: 8269411Abstract: A display device and a method of manufacturing the same are provided. The display device includes an illuminate unit and a color filter. The illuminate unit has a light-emitting chip and a plurality of quantum dot phosphors for generating a color light which has an optical spectrum including the first blue peak wavelength, a first green peak wavelength, and a first red peak wavelength. The color filter is disposed in the light path of the color light, wherein the color filter has a transmittance spectrum having a second blue peak wavelength, a second green peak wavelength, and a second red peak wavelength. The first blue peak wavelength, the first green peak wavelength, and the first red peak wavelength respectively match the second blue peak wavelength, the second green peak wavelength, and the second red peak wavelength in order to enhance the color performance of the display device.Type: GrantFiled: October 7, 2010Date of Patent: September 18, 2012Assignee: AU Optronics CorporationInventors: Yi-Cheng Yu, Chih-Lin Wang, Ru-Shi Liu, Chun-Che Lin
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Publication number: 20120229025Abstract: This invention provides a vapor-tight luminaire that maintains a moisture-proof, sealed lower housing for the light-producing lamps (fluorescent lights, LED arrays, etc.) while isolating the electronic components in a separate, upper housing that is spaced apart from, and largely thermally isolated from, the lamps. The lamp housing comprises a unitary non-penetrated tubular lens with one or more removable end caps, sealed by gaskets. The lamp assembly is slidably mounted within the lower housing so that it is readily removable and replaceable with another assembly of the same or different type. The electronics in the upper housing is readily accessible and replaceable by removing a top cover that encloses a three sided channel member. The upper housing is metal and desirably enhances heat exchange with the environment. The two housings are held together by a pair of opposing end cap structures that include a housing end and a removable end cap.Type: ApplicationFiled: March 7, 2011Publication date: September 13, 2012Applicant: GREENDOT TECHNOLOGIES, LLC.Inventors: Richard D. Edwards, JR., Stanley A. Katz
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Patent number: 8264135Abstract: A bezel-less display is disclosed that includes an electronic display device and a cover. The electronic display device has an image-displaying portion and another portion adjacent the image-displaying portion along at least one side. The cover is positioned adjacent the electronic display device and includes a first portion positioned adjacent the image-displaying portion of the display device and a second portion positioned adjacent the other portion of the display device. The optical properties of the first and second portions of the cover are selected to present an appearance of a uniform cover without a bezel when the display device is not displaying an image. The optical properties of the first portion are also selected to transmit images displayed on the image-displaying portion. Preferably, the optical properties of the second portion are selected to mask the other portion of the display device.Type: GrantFiled: December 10, 2010Date of Patent: September 11, 2012Assignee: Bloomberg Finance L.P.Inventors: Helmars E. Ozolins, Masamichi Udagawa
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Publication number: 20120223632Abstract: Remote component devices, systems, and methods are disclosed. In one aspect, remote component devices, systems, and methods can include a body for lockably securing the remote component to a housing. Devices, systems, and methods can also include one or more light emitting devices disposed over the body. An optical material can be remotely located at least a first distance away from the one or more light emitting devices. Remote component devices, systems, and methods disclosed herein can be used as replacements and/or equivalent light products for standard filament light bulbs and compact fluorescent lamp (CFL) bulbs.Type: ApplicationFiled: March 1, 2011Publication date: September 6, 2012Inventors: Christopher P. Hussell, Peter Scott Andrews, Florin A. Tudorica, David T. Emerson
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Publication number: 20120223635Abstract: Some porous films, such as organic non-polymeric porous films, may be useful for light outcoupling to increase light-emitting device efficiency. They may also be used for light scattering in other devices and for other applications related to the transfer of light.Type: ApplicationFiled: March 2, 2012Publication date: September 6, 2012Applicant: NITTO DENKO CORPORATIONInventors: Amane Mochizuki, Liping Ma, Shijun Zheng, Sazzadur Rahman Khan, Sheng Li, Qianxi Lai, David T. Sisk, Brett Harding
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Patent number: 8258685Abstract: Embodiments of the present invention generally provide an apparatus and method for forming a display screen assembly that comprises multiple panel assemblies which are positioned to form a tiled display device that has improved visual characteristics, is easy to assemble and has a reduced manufacturing cost. In general, each panel assembly is formed so that when it is positioned in a display screen assembly the grid pattern, formed by the gap between the illuminated regions in adjacent panel assemblies, can be minimized. In one embodiment, the unwanted visual effect of the grid pattern is mitigated by minimizing and controlling the space, or gaps, formed between the illuminated area in adjacent panel assemblies. Embodiments of the present invention may also provide an apparatus and method for forming a single panel assembly that is used to display an image.Type: GrantFiled: June 26, 2009Date of Patent: September 4, 2012Assignee: Prysm, Inc.Inventors: David Kindler, Roger A. Hajjar, Akihiro Machida