With Reflector Patents (Class 362/245)
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Patent number: 9857045Abstract: A rear combination lamp is configured to include a door-side lamp portion, which has a first LED, a first housing, and a first lens, and a fender-side lamp portion, which has a second LED, a second housing, and a second lens. The door-side lamp portion and the fender-side lamp portion are disposed adjacent to one another in the vehicle width direction. Moreover, a second lamp-side reflector that reflects toward the second lens the light emitted from the second LED is disposed between the second housing and the second lens. Part of the second lamp-side reflector is configured as an interstitial reflecting portion that reflects the light emitted from the second LED between the first lens and the second lens.Type: GrantFiled: December 19, 2013Date of Patent: January 2, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Noritake, Ken Nishioka
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Patent number: 9752751Abstract: An optical lens includes a first lens body having a first light exiting surface, a second light exiting surface, a first light incident surface, a second light incident surface, a third light incident surface, and a bottom surface connected to the light incident surfaces; a second lens body having an outer circumference surface, a first inner circumference surface, and an uneven second inner circumference surface; and a mounting body surrounding and connected to the first and second lens bodies, and extending outward with respect to the first and second lens bodies. The first, second and third light incident surfaces are sequentially connected to form on the bottom surface a groove for receiving a light emitting unit. The optical lens has a horizontal beam angle equal to 171.6 degrees ±10% and a vertical beam angle equal to 160 degrees ±10%.Type: GrantFiled: September 11, 2015Date of Patent: September 5, 2017Assignee: GRANDLITE INTERNATIONAL CORPInventor: Chung-Han Yu
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Patent number: 9695992Abstract: A lamp is provided having at least one module that includes a plurality of LEDs distributed over a module surface. The plurality of LEDs are arranged in a row of a plurality of rows in a longitudinal direction of the at least one module. Each of the plurality of rows are arranged next to each other in a transverse direction of the at least one module that is perpendicular to the longitudinal direction. The lamp includes an optical system for bundling the light emitted by the plurality of LEDs. The optical system includes at least one cylinder lens that extends in the longitudinal direction. The light of at least some of the plurality of LEDs from a first row of the plurality of rows is bundled into a line on a target surface by the at least one cylinder lens.Type: GrantFiled: March 21, 2013Date of Patent: July 4, 2017Assignee: Heraeus Noblelight GmbHInventors: Susanne Schadt, Michael Peil, Harald Maiweg
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Patent number: 9689554Abstract: A lens for distributing light from a light emitter in a desired asymmetric illumination profile includes a lens body having an input side and an output side. The input side receives light from an emitter, and the output side includes primary refractive surface, total internal reflection surfaces, and a secondary refractive surface associated with the total internal refection surfaces. A primary emission axis associated with the emitter is defined through the lens body, and a transverse reference plane is positioned parallel to the primary emission axis. A desired illumination region is located on a first side of the reference plane, and a desired dark region is located on a second side of the reference plane. The primary refractive surface, the total internal reflection surfaces and the secondary refractive surface direct a substantial portion of the light from the emitter to the desired illumination region.Type: GrantFiled: May 11, 2015Date of Patent: June 27, 2017Assignee: Universal Lighting Technologies, Inc.Inventors: John R. Householder, Megan Tidd
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Patent number: 9680076Abstract: An LED chip (3) is disposed in a recessed portion (21p) formed by bending a metal lead frame (2). A reflector (4) has a resin reflection surface (4a) and the recessed portion (21p) has a metal reflection surface (21a). When the inclination angle of at least one metal reflection surface (21a) is ?s2(°), the resin reflection surface (4a) has a sloped resin surface with an inclination angle of ?s1(°) that is smaller than ?s2(°). With ?c(°) defined as the critical angle of light emitted from an LED chip (3) and incident on the interface between a light-transmissive resin (5) and an air layer, the sloped resin surface and metal reflection surface having a relationship of ?s1<?s2, satisfies both a conditional expression (1): 45°??c/2<?s1<?c and a conditional expression (2): 35°??s2?55°.Type: GrantFiled: May 15, 2013Date of Patent: June 13, 2017Assignee: SHARP KABUSHIKI KAISHAInventor: Shin Itoh
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Patent number: 9574734Abstract: A lightguide module having a linear collimator produced from optically transparent material, a toroidal lens produced from optically transparent material, and a light source, wherein the toroidal lens is disposed between the linear collimator and the light source, at the exit of the linear collimator are found scattering elements, and wherein a light-emitting part of the light source is directed toward an entry surface of the toroidal lens and an exit surface of the toroidal lens is directed toward entry surfaces of the linear collimator. The light source may be a light-emitting diode and the toroidal lens may be a Fresnel type lens.Type: GrantFiled: August 5, 2011Date of Patent: February 21, 2017Assignee: VARROC LIGHTING SYSTEMS S.R.O.Inventors: Pavel Sousek, Jan Martoch, Wilfred Dejmek
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Patent number: 9530760Abstract: A light emitting device includes: a base member; and a plurality of light emitting elements mounted on the base member. The plurality of light emitting elements includes: at least one first light emitting element having a side surface uncovered by a light reflective member; and at least one second light emitting element having a side surface covered by the light reflective member.Type: GrantFiled: December 24, 2014Date of Patent: December 27, 2016Assignee: NICHIA CORPORATIONInventor: Yusuke Kawano
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Patent number: 9523490Abstract: The luminaire includes a light emitting diode (LED) module that includes a heat sink with an outer wall defining a top cavity and a bottom cavity and a mounting flange generally positioned along the bottom of the outer wall. A LED light source is positioned within the bottom cavity and in thermal communication with the heat sink. The bottom surface of the mounting flange includes one or more alignment features or keys extending out from the bottom surface. A trim having a corresponding alignment aperture is matingly engaged by positioning all or a portion of the alignment feature into the alignment aperture to ensure proper orientation of the trim with the LED module and to provide sufficient surface area for good thermal transfer between the heat sink and the trim.Type: GrantFiled: March 17, 2016Date of Patent: December 20, 2016Assignee: Cooper Technologies CompanyInventors: Jyoti Gururaj Kathawate, Evans Edward Thompson, III, Russell Bryant Green, Kevin Roy Harpenau
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Patent number: 9500351Abstract: In various embodiments, a lighting unit is provided. The lighting unit may include a hollow body made of a plastics material as a substrate, which hollow body has an outer surface and an opposite inner surface, wherein the latter at least partially delimits a hollow body internal volume, a plurality of light emitting diodes, which are arranged on the outer surface of the hollow body, and a conductor track structure, which is electrically conductively connected to the light emitting diodes. The conductor track structure is arranged on the inner surface of the hollow body, and the electrically conductive connection to the light emitting diodes is produced by through-contacts, which are passed through the plastics material.Type: GrantFiled: February 13, 2015Date of Patent: November 22, 2016Assignee: OSRAM GMBHInventors: Gertrud Kraeuter, Bernd Barchmann, Andreas Dobner, Florian Boesl
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Patent number: 9494823Abstract: A method and apparatus for effectively controlling light propagation are presented. The apparatus includes a muntin having reflective walls arranged to form a plurality of openings, and a cavity sheet disposed on the muntin. The muntin is configured to assemble with an array of light sources. The cavity sheet has a plurality of pinholes and is configured to assemble with the muntin such that the reflective walls align with areas between the pinholes. The light sources, the muntin, and the cavity sheet form light mixing cavities and light sources within each light mixing cavities may be individually controlled. The light mixing cavities allow generation of localized and uniform light.Type: GrantFiled: July 12, 2012Date of Patent: November 15, 2016Assignee: Samsung Display Co., Ltd.Inventor: Candice Hellen Brown Elliott
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Patent number: 9479623Abstract: A mobile terminal housing includes a rear plate made of transparent material and a front plate coupled with the rear plate. The mobile terminal housing further includes a plastic member fitting closely to the rear plate and positioned between the rear plate and the front plate and a mirror coating. The rear plate includes an outer surface and an inner surface opposite to each other. The plastic member forms a light transmission hole. The mirror coating is positioned on the outer surface of the rear plate and overlaps the light transmission hole, and a size of the mirror coating is larger than that of the light transmission hole. The mobile terminal housing is able to give visual indications of activity even when resting on its face.Type: GrantFiled: October 8, 2014Date of Patent: October 25, 2016Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: Shao-Han Chang
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Patent number: 9366407Abstract: In the present invention, an inner lens of a turn signal lamp is provided with: a lens cut part that inhibits the transmission of light travelling, when seen in a front view, linearly from a substrate toward an outer lens; a projection part that projects toward an LED; and an eave part that extends from the base end side of the projection part inwardly in the vehicle width direction. A harness that is electrically connected with the LED is connected to the substrate through a partial space that is surrounded by the substrate, the projection part, and the eave part.Type: GrantFiled: March 9, 2012Date of Patent: June 14, 2016Assignee: Honda Motor Co., Ltd.Inventors: Nobuyuki Takenaka, Daisuke Kuriki, Hajime Soda, Takashi Tetsuka
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Patent number: 9366416Abstract: Various embodiments may relate to a lens for a lighting assembly. The lens includes a bottom surface, a top surface and a side surface joining the bottom surface and the top surface. The bottom surface includes an incident surface, and the top surface includes an emergent surface, wherein the side surface includes a first side surface part and a second side surface part arranged in sequence in a direction from the top surface to the bottom surface, and the first side surface part and the second side surface part are defined by different curved surfaces and both are configured as reflection surfaces.Type: GrantFiled: October 16, 2013Date of Patent: June 14, 2016Assignee: OSRAM GmbHInventors: Dirk Buchhauser, Qihui Zhang, HongWei Zhang, Jing Lin
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Patent number: 9360745Abstract: A light source assembly includes a plurality of first light sources disposed on a first plane to emit light, a plurality of second light sources disposed on a second plane, the second plane spaced apart from the first plane with a preset interval, wherein each second light source emits light between the adjacent first light sources, and a lens configured to concentrate light emitted from the plurality of first and second light sources. A projector having the light source assembly is also provided.Type: GrantFiled: December 5, 2011Date of Patent: June 7, 2016Assignee: LG Electronics Inc.Inventors: Kihyuk Song, Kiso Bok, Honglyeol Oh, Dohyun Koo
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Patent number: 9341887Abstract: Displays comprise light control layers (16) in an optical path between a light source (12), such as an array of light emitting diodes and a spatial light modulator (14) such as a liquid crystal display panel. The light control layer comprises an enhanced specular reflector (ESR, 16a) film in optical contact to at least one layer of a transparent or translucent material (16B, 16C). The light control layer transmits light from the light source more readily than the ESR film standing on its own. In some embodiments the display may provide enhanced contrast and peak luminance.Type: GrantFiled: September 8, 2010Date of Patent: May 17, 2016Assignee: Dolby Laboratories Licensing CorporationInventors: Lorne A. Whitehead, Henry H. Ip, Vincent Kwong
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Patent number: 9297517Abstract: A light source is combined with an optic and a reflector. Light incident onto to the reflector is reflected with a single reflection. The reflector occupies a portion of a solid angle around the light source to the exclusion of the optic at least with respect to any optical function. The reflector directly receives a second portion of light. The optic occupies substantially all of the remaining portion of the predetermined solid angle to directly receive a first portion of light from the light source. A reflected beam from the reflector is reflected into a predetermined reflection pattern. The inner and/or outer surface of the optic is shaped to refract or direct light which is directly transmitted into the optic from the light source from a first portion of light and/or reflected into the optic from the reflector from the reflected beam into a predetermined beam.Type: GrantFiled: June 3, 2013Date of Patent: March 29, 2016Assignee: Cooper Technologies CompanyInventors: Ronald G. Holder, Greg Rhoads
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Patent number: 9267661Abstract: LED illumination systems and techniques for apportioning optical projection paths in an LED lamp are disclosed.Type: GrantFiled: February 27, 2014Date of Patent: February 23, 2016Assignee: Soraa, Inc.Inventors: Michael R. Krames, Frank Shum
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Patent number: 9151467Abstract: A lighting device (1) for providing a homogeneous luminous intensity distribution in relation to an optical axis of the lighting device (1), the lighting device (1) comprising: at least one light source (7); a housing (3) arranged to enclose the at least one light source (7), the housing (3) comprising an at least partly transparent housing portion being arranged in parallel to the optical axis of the lighting device (1); and a reflector (4) arranged inside the housing (3), the housing (3) and the reflector (4) together defining a single light mixing chamber (6), wherein the reflector (4) is arranged to reflect light from the at least one light source (7) away from the optical axis of the lighting device (1) towards the at least partly transparent housing portion.Type: GrantFiled: July 14, 2011Date of Patent: October 6, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Johannes Petrus Maria Ansems, Vincent Stefan David Gielen, Marcus Joannes Van Den Bosch
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Patent number: 9127819Abstract: A light-directing apparatus for predominantly forward distribution of light from a light emitter having an emitter axis. The light-directing apparatus includes a forward-reflective surface entirely within a lens member positioned over the light emitter. The lens member has an outer surface and an inner cavity including an emitter-light-receiving void and a light-reflecting void which is contiguous with the emitter-light-receiving void and is different in configuration than the emitter-light-receiving void. The forward-reflective surface is in the light-reflecting void in position in the path of light emitted rearwardly.Type: GrantFiled: May 22, 2014Date of Patent: September 8, 2015Assignee: Cree, Inc.Inventor: Kurt S. Wilcox
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Publication number: 20150117004Abstract: The present disclosure relates generally to an omnidirectional light optic. In one embodiment, the omnidirectional light includes a plurality of reflectors, wherein each one of the plurality of reflectors comprises at least two reflective sides, wherein each one of the at least two reflective sides has an associated optical axis, wherein each respective optical axis of the at least two reflective sides is located on a common horizontal plane and each one of the at least two reflective sides comprises a curved concave cross-section, a plurality of LEDs, wherein each one of the plurality of reflectors is associated with at least one of the plurality of LEDs and at least one blocking band member with at least one edge that blocks light emitted by the plurality of LEDs at common horizontal angles.Type: ApplicationFiled: December 29, 2014Publication date: April 30, 2015Inventors: John Patrick Peck, Cecil D. Thomas
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Patent number: 9007237Abstract: Lighting devices are provided including those which have an array of spatially distributed optoelectronic sources, each source being adapted to emit a respective incident optical beam; a first reflector having an optical axis, and having a first reflective surface that is concave and facing the array of sources to intercept said incident optical beams and to produce corresponding reflected optical beams; a second reflector having a second reflective surface interposed along said optical axis between said array of optoelectronic sources and the first reflector adapted to intercept and deflect said reflected optical beams producing corresponding deflected optical beams, the first reflector being adapted to concentrate the reflected optical beams on the second reflective surface.Type: GrantFiled: May 31, 2013Date of Patent: April 14, 2015Assignee: Consiglio Nazionale Delle RicercheInventors: David Jafrancesco, Luca Mercatelli, Paola Sansoni, Daniela Fontani, Elisa Sani, Franco Francini
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Patent number: 8998448Abstract: A LED tube lamp includes a heat sink, a LED substrate, a pair of connectors, and a cover fixed to the heat sink. The cover includes a first cover and a second cover, at least one optical lens is arranged on the first cover, the at least one optical lens comprises a concave lens and reflective lenses arranged on both sides of the concave lens. The concave lens is configured to refract light beams from the LEDs in a forward direction or in an approximate forward direction, the reflective lenses are configured to reflect light beams from the LEDs in a lateral direction. After the light beams are refracted by the optical lens, the light divergence angle of the LED tube lamp is increased.Type: GrantFiled: April 21, 2011Date of Patent: April 7, 2015Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Shao-Han Chang
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Patent number: 8939605Abstract: A lighting system comprising a plurality of controllable light emitting elements 3 is disclosed. The lighting system further comprising a spreading optical element 5 arranged in front of the plurality of light emitting elements to shape the light emitted from the lighting elements, and a controller 7 for varying a light emission angle range of light emitted from the spreading optical element 5 by controlling each of the plurality of controllable light emitting elements. This allows the light emitted from the spreading optical element to be varied without varying any physical parts of the lighting system, because the controller now controls each of the light emitting elements, by e.g. dimming one or more of the light emitting elements or by switching one or more of the light emitting elements off.Type: GrantFiled: July 14, 2010Date of Patent: January 27, 2015Assignee: Koninklijke Philips N.V.Inventors: Pieter Jacob Snijder, Winfried Antonius Henricus Berkvens, Hugo Johan Cornelissen, Pierre Robert Valère Sonneville
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Patent number: 8931939Abstract: LED luminaire, particularly LED headlight, comprising an active light source (2) composed of a plurality of LEDs (21-26) that have the same color or different colors and are arranged on a flat or curved surface (20, 200) or circuit board and an optical system comprising a collimation optics unit (3), the individual lenses of which are arranged in a small distance above the emission surfaces of the LEDs (21-26) and which collects and focuses the light (L1-L4) emitted by the LEDs and directed onto a surface, a mixing optical unit (4), which receives the light (K1, K2, E) that has been directed onto a surface and focussed and mixes it in terms of the color and/or brightness, and a field optics unit (5) which receives the light (M1, M2 or N1, N2) emitted by the mixing optics unit (4) and emits it with pre-determined light distribution (F1-F4) to the far field.Type: GrantFiled: August 20, 2010Date of Patent: January 13, 2015Assignee: Arnold & Richter Cine Tecnik GmbH & Co. Betriebs KGInventors: Erwin Melzner, Michael Jonischkeit
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Publication number: 20150003063Abstract: A lens includes a light incident face receiving light from an LED light source, a light exit face, and a connecting face interconnecting the light incident face and the light exit face. The light exit face is a convex face. The connecting face includes a plurality of inclined reflecting planes located at a circumferential periphery of the lens and extending downwardly and inwardly from a position near to an outer edge of the light exit face toward the light incident face. The inclined reflecting planes of the connecting face are positioned around an optical axis of the lens. An LED light source module includes a plurality of the lens each diverging light from a corresponding LED light source and a light diffuser having a plurality of light diffusing units each over a corresponding lens. Each light diffusing unit has a shape of the regular hexagon.Type: ApplicationFiled: October 31, 2013Publication date: January 1, 2015Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Chau-Jin HU, Feng-Yuen DAI, Po-Chou CHEN
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Patent number: 8916895Abstract: This invention discloses an infrared light-emitting diode. The infrared light-emitting diode comprises: only one core for emitting infrared light; a packaging body which at least comprises a first surface that is convex and in front of the core and a second surface that is plane and on one side of the core; and leads connected to the core and extending to outside of the packaging body; wherein the infrared light emitted by the core forms at least two beams of infrared light in different directions after being emitted from the packaging body through the first surface and the second surface. With such infrared LED and the touch screen, touch system and interactive display based on the LED, at least two beams of infrared light in different directions can be emitted requiring only one core.Type: GrantFiled: June 9, 2011Date of Patent: December 23, 2014Assignee: Beijing IRTouch Systems Co., LtdInventors: Xinlin Ye, Zhenzhong Zou, Jianjun Liu, Xinbin Liu
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Publication number: 20140362572Abstract: A LED lighting device includes a cooling base having an assembling surface defined at a bottom thereof, a first LED chip and a second LED chip assembled on the assembling surface, a reflecting member facing the assembling surface, the reflecting member having a high beam reflector and a low beam reflector, the high beam reflector and the low beam reflector respectively corresponding to the second LED chip and the first LED chip, and a curvature of the high beam reflector being different from a curvature of the low beam reflector. Wherein, light beams from the second LED chip are reflected by the high beam reflector toward a far region relative to the LED lighting device of the present invention; light beams from the first LED chip are reflected by the low beam reflector toward a close region relative to the LED lighting device of the present invention.Type: ApplicationFiled: June 6, 2013Publication date: December 11, 2014Inventors: CHING-CHERNG SUN, JHIH-YOU CAI
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Patent number: 8899785Abstract: A lamp including an LED assembly having at least a first LED to emit light of at least a first color, and at least a second LED to emit light of at least a second color. The first and second LEDs received in an enclosure having a reflective internal surface, the enclosure configured to mix the light emitted from the LEDs, with the mixed light emitted from the lamp through a diffuser lens. A trim piece, formed at least partially of a thermally conductive material, may be secured to the lamp. A method of making the lamp is also provided.Type: GrantFiled: July 14, 2011Date of Patent: December 2, 2014Assignee: Cree, Inc.Inventor: Antony Paul Van de Ven
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Publication number: 20140340899Abstract: An integrated solid-state lamp comprised of thermally conducting materials such as alumina ceramic or graphite filled polymers may simultaneously perform optical operations on the light emerging from solid-state emitters to enable the creation of a lamp which produces light in both direct and indirect light zones with a near-field uniformity more comparable to that produced by a vertical filament incandescent lamp. The light chamber structures may incorporate optical light path modifiers which push light into additional lighting zones for proximately omnidirectional light. Diffuser structures may incorporate hole patterns to improve thermal flow and light recycling efficiency. The distribution produced fully encompasses 0-180 deg. Light produced by the lamp chambers or atrium serve in like manner to the atrial chambers of the heart to produce light uniformly in all directions for general illumination at high efficiency.Type: ApplicationFiled: May 18, 2014Publication date: November 20, 2014Inventors: Edward E. Bailey, Andrew H. Beregszaszi
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Patent number: 8880360Abstract: A combination mirror and media display device assembly is provided. The combination mirror and media display device includes a mirror platform having a media display device viewing area and a media display device coupled to the mirror platform. The media display device is positioned to display images through the media display device viewing area.Type: GrantFiled: December 28, 2011Date of Patent: November 4, 2014Assignee: Electric Mirror, LLCInventors: James V. Mischel, Jr., James V. Mischel, Sr.
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Publication number: 20140321147Abstract: A lamp unit for a vehicle lamp can include: a lens having an aspherical shape, including a first lens portion, and a second lens portion disposed adjacent to the first lens portion and forming a concave portion on at least a part of a rear side surface thereof; a first reflective surface disposed rearward of the first lens portion; a second reflective surface disposed rearward of the second lens portion; a first light source configured to emit light to be reflected by the first reflective surface, pass through the first lens portion and be emitted forward; and a second light source configured to emit light to be reflected by the second reflective surface, pass through the second lens portion and be emitted forward. A shape of a rear side surface of the second lens portion can be configured to diffuse the light from the second light source vertically and horizontally.Type: ApplicationFiled: April 25, 2014Publication date: October 30, 2014Applicants: HONDA MOTOR CO., LTD., STANLEY ELECTRIC CO., LTD.Inventors: Shinichi Todaka, Nathan Marion Fisher, Joshua Thomas Glazier, Mitsuaki Kiyota, Robert William Herpy
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Publication number: 20140307436Abstract: An LED lighting fixture including a housing comprising a single-piece wall structure defining a cavity with an LED-supporting surface therewithin. An LED illuminator is mounted at the LED-supporting surface in the cavity, the LED-supporting surface positioning the LED illuminator in a desired orientation. An LED driver may be secured against the housing which transfers heat therefrom. There may be a plurality of spaced apart LED illuminators mounted at the LED-supporting surface within the cavity. The LED lighting fixture may also include a single-piece reflector comprising a plurality of reflector cups for the LED illuminators and extending therefrom to a common forward end of the housing.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Applicant: CREE, INC.Inventors: Kurt S. Wilcox, Wayne Guillien, Frank Tsao
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Patent number: 8851733Abstract: A light signal transmitter and a light receiver for an optical sensor may be used for an industrial automation system. The light signal transmitter has a semiconductor-based light source for generating light. The semiconductor-based light source is disposed in an installation space between outer layers of a multi-layer circuit board. The light emission direction of the semiconductor-based light source is oriented substantially parallel to the layers of the printed circuit board. A deflection unit deflects the light emitted by the semiconductor-based light source in a direction substantially perpendicular to the layers of the printed circuit board. In the case of the light receiver, a light sensor is provided in place of the light source. Such optical sensors can be designed in a particularly flat and installation-friendly manner.Type: GrantFiled: October 28, 2010Date of Patent: October 7, 2014Assignee: Siemens AktiengesellschaftInventors: Frank Lahner, Thomas Völkel
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Publication number: 20140293582Abstract: An optical lens, light emitting device, and lighting device are provided.Type: ApplicationFiled: March 28, 2014Publication date: October 2, 2014Inventors: Chang Hyuck Lee, Hyun Ho Choi, Leeim Kang, Chang Gyun Son
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Patent number: 8845129Abstract: A method and system for providing an array of illumination modules is disclosed. A modular illumination system can comprise a one-dimensional array, a two-dimensional array, or other shapes and arrangements of the illumination modules. Adjacent illumination modules in the array can be attached to one another via a system of connectors. Each illumination module can comprise at least two connectors, one feeding electricity to a neighboring illumination module and one receiving electricity from a power source. The power source can comprise another neighboring illumination module or a power supply circuit that feeds the array of illumination modules or a subset of illumination modules in the array. Each illumination module can comprise a circuit board, at least one LED, and an optical system that manages light.Type: GrantFiled: July 23, 2012Date of Patent: September 30, 2014Assignee: Cooper Technologies CompanyInventors: Ronald G. Holder, Matthew A. Davis
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Patent number: 8840270Abstract: In at least one embodiment of the luminaire (1), it includes at least one optoelectronic semiconductor device (4) and at least one primary optical unit (11) which is disposed downstream of the semiconductor device (4) and is spaced apart therefrom. Furthermore, the luminaire (1) comprises a secondary optical unit (22) and/or a tertiary optical unit (33) which is/are disposed downstream of the primary optical unit (11). A proportion of at least 30% of radiation emitted by the semiconductor device (4) passes to the secondary optical unit (22) and/or to the tertiary optical unit (33). Furthermore, the secondary optical unit (22) and/or the tertiary optical unit (33) is/are arranged for small-angle scattering of the radiation emitted by the semiconductor device (4).Type: GrantFiled: November 25, 2010Date of Patent: September 23, 2014Assignee: OSRAM GmbHInventors: Simon Schwalenberg, Peter Brick, Julius Muschaweck
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Publication number: 20140268764Abstract: A luminaire that includes a plurality of light emitting diodes (LEDs), a light diffuser having a planar surface facing the LEDs, and a reflector that surrounds a cavity formed between the light diffuser and the LEDs. Also disclosed is a light distribution system having a first plurality of lenses configured to convert incident light into a light distribution pattern and a second plurality of lenses configured to convert incident light into a different light distribution pattern. Further disclosed is a method of distributing light that involves emitting light towards a light diffuser, scattering a first portion of the light with the light diffuser, reflecting a second portion of the light with the light diffuser, reflecting the second portion of the light with a first reflective surface back towards the light diffuser, and scattering the second portion of the light with the light diffuser.Type: ApplicationFiled: March 17, 2014Publication date: September 18, 2014Applicant: KENALL MANUFACTURING COMPANYInventors: Brandon Stolte, Yanwai Mui
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Patent number: 8827492Abstract: To provide a back light unit that reduces an uneven brightness and has a spatially uniform brightness distribution. According to an aspect of the present invention, the back light unit comprises an LED and a light guide plate for guiding light from the LED to a liquid crystal panel side, wherein a recess is provided on the back surface side of the light guide plate, wherein a plurality of LEDs are housed in the recess, and wherein a light amount limiting member is provided at a position facing the recess on s light exit surface side of the light guide plate. The light amount limiting member is configured, for example, by applying an ink with a predetermined optical property to a transparent sheet.Type: GrantFiled: November 17, 2011Date of Patent: September 9, 2014Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Shoji Yamamoto, Satoshi Ouchi, Mayumi Nagayoshi, Hajime Inoue
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Patent number: 8820962Abstract: An LED illumination apparatus includes a substrate, a light source disposed on the substrate, a cover unit to cover the light source, and a reflector configured to extend from the cover unit inside to the upper substrate, whereby a light generated by the light source illuminates an area below a bottom side of the substrate.Type: GrantFiled: June 19, 2013Date of Patent: September 2, 2014Assignee: Seoul Semiconductor Co., Ltd.Inventor: Ki Tae Kang
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Patent number: 8820964Abstract: Embodiments of the invention are directed toward a lighting system that includes a primary optic having a length, a plurality of discrete light sources disposed along an axis, and a ribbed refractor. The ribbed refractor can include a plurality of linear ribs that are arranged substantially perpendicular to the line of discrete light sources. The ribbed refractor can refract light from the plurality of discrete light sources into a continuous line of light as viewed along the length of the primary optic, thereby masking the discrete nature of the light sources. In some embodiments, the ribbed refractor does not substantially alter the photometric distribution of light perpendicular to the axis.Type: GrantFiled: August 2, 2011Date of Patent: September 2, 2014Assignee: ABL IP Holding LLCInventor: Carl Gould
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Patent number: 8801221Abstract: A lens structure, a light source device, and a light source module are provided. The light source device includes a light emitting device and a lens structure. The light emitting device is capable of emitting a light beam. The lens structure includes a first surface, a second surface opposite to the first surface and four total internal reflection surfaces connected to the second surface. Some of the total internal reflection surfaces connect to the first surface. The first surface has a recess. The light emitting device is disposed at the recess. The second surface is a free-form surface. The light beam is capable of entering the lens structure through the first surface, and leaving the lens structure through the second surface.Type: GrantFiled: January 4, 2013Date of Patent: August 12, 2014Assignee: Young Lighting Technology Inc.Inventors: Meng-Hsuan Lin, Chien-Chung Liao, Chun-Wei Lee
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Publication number: 20140198500Abstract: A replacement lamp for an airport runway sign. Light is produced by a linear array of white-light LEDs. A cylindrical lens is mounted longitudinally adjacent to the LEDs, and collects a central portion of the light emitted from the LEDs. A pair of inclined surfaces extend from the lateral edges of the LEDs to respective lateral edges of the cylindrical lens. The inclined surfaces have a rough surface texture and reflect light diffusely. The inclined surfaces collect a peripheral portion of the light emitted from the LEDs, and direct the reflected light toward the cylindrical lens. The LEDs, cylindrical lens and inclined surfaces are all mechanically supported by a heat sink. The replacement lamp is placed into a runway sign near its top or bottom edge, and illuminates both viewing surfaces of the runway sign simultaneously without a diffuser.Type: ApplicationFiled: January 17, 2013Publication date: July 17, 2014Applicant: OSRAM SYLVANIA INC.Inventors: Thomas Tessnow, Kim Albright, Ronald E. Boyd, JR., Aaron Plaza
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Patent number: 8777455Abstract: A solid state directional lamp is disclosed. The lamp includes a housing and a solid state light emitter. The housing defines an interior region and an air passageway, the air passageway passing through the housing and the interior region. The solid state light emitter is positioned adjacent to a perimeter of the air passageway. The air passageway is configured to provide cooling to the lamp when the sold state light emitter is energized.Type: GrantFiled: June 23, 2011Date of Patent: July 15, 2014Assignee: Cree, Inc.Inventors: Paul Pickard, Nicholas W. Medendorp, Jr.
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Patent number: 8770787Abstract: Proposed is a luminaire (1), comprising light sources (10) and optical elements (20). The light sources (10) are arranged in a first (11) and a second array (12), while the optical elements (20) are arranged in a first (21) and a second section (22). The first ‘light sources' array (11) and the first Optical element’ section (21) form a first group (31), and the second array (12) and the section (22) form a second group (32). The luminaire (1) is characterized in that the optical elements (20) of each group are arranged to have different beam shaping characteristics, and the arrays (11,12) are arranged to be individually addressable. This is especially advantageous in illumination applications where the control of the beam shape is required or desired. Advantageously, the invention provides a luminaire (1) capable of adjusting the beam shape without using an adjustable optical system. Moreover, the control bandwidth of the light sources limits the speed with which the beam shape can be adjusted.Type: GrantFiled: June 9, 2008Date of Patent: July 8, 2014Assignee: Koninklijke Philips N.V.Inventors: Michel Cornelis Josephus Marie Vissenberg, Willem Lubertus Ijzerman
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Patent number: 8772802Abstract: A light emitting device includes a carrier, a light emitting element disposed and electrically connected to the carrier, and a transparent plate disposed on the carrier and including a flat-portion and a lens-portion. The lens-portion covers the light emitting element and has a light incident surface, a light emitting surface, a first side surface and a second side surface. The light emitting element is suitable for emitting a light beam. A first partial beam of the light beam passes through the light incident surface and leaves from the light emitting surface. A second partial beam of the light beam passes through the light incident surface and is transmitted to the first side surface or the second side surface, and the first side surface or the second side surface reflects at least a part of the second partial beam of the light beam to be passed through the light emitting surface.Type: GrantFiled: November 2, 2009Date of Patent: July 8, 2014Assignee: Everlight Electronics Co., Ltd.Inventors: Shin-Chang Tsai, Chia-Hao Liang, Pei-Husan Chen
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Patent number: 8764230Abstract: A luminous body is described, in particular in the form of a planar lighting device for general lighting or for back-lighting of displays, which luminous body comprises a plurality of light sources (2), for example LED elements, arranged in a housing (10), in particular an optical waveguide plate (1). The optical waveguide plate (1) forms a first optical medium (1) with a first optical scattering power, into which the light of the light sources (2) is coupled. Furthermore, at least one second optical medium (5) with a second optical scattering power is provided, such that the light propagating in the second optical medium (5) is at least substantially coupled in from the first optical medium (1), and the scattering power of at least one of the media is chosen for the purpose of influencing the flow of light in the housing (10) such that a given brightness distribution of the light on the light emission surface (4) is achieved.Type: GrantFiled: January 27, 2005Date of Patent: July 1, 2014Assignee: Koninklijke Philips N.V.Inventor: Horst Greiner
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Patent number: 8764232Abstract: A light-directing apparatus for off-axial preferential-side distribution of light from a light emitter having an emitter axis. The light-directing apparatus includes a shield member within a lens member positioned over the light emitter. The lens member has an outer surface and an inner surface defining an emitter void and a shield-receiving void which is on a non-preferential side of the lens member. The shield-receiving void is different in configuration than the emitter void. The shield member is in the shield-receiving void in position in the path of light emitted toward the non-preferential side.Type: GrantFiled: August 20, 2013Date of Patent: July 1, 2014Assignee: Cree, Inc.Inventor: Kurt S. Wilcox
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Patent number: 8746934Abstract: A lighting assembly that efficiently collects and accurately directs light with a defined asymmetrical light ray angle distribution onto a nearby target surface. The light with the asymmetrical light ray angle distribution illuminates the target surface with a defined illumination profile. In theatrical and architectural lighting, the defined illumination profile is an even illumination profile on a nearly vertical surface. In street lighting, the defined illumination profile is an even illumination profile on a horizontal surface. The lighting assembly includes an LED and a solid reflector optic having a reflective surface shaped to reflect light from the LED in a way that produces the asymmetrical light ray angle distribution at least in part.Type: GrantFiled: November 11, 2011Date of Patent: June 10, 2014Assignee: Rambus Delaware LLCInventor: Brian E. Richardson
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Patent number: 8721115Abstract: A light panel is disclosed. The light panel comprises a circuit assembly, a plurality of light sources, a light reflective structure, and a diffuser layer. The light reflective structure has a plurality of concaves, which are continuously connected to form a plurality of ridges. Each of the concaves has an opening formed on the bottom surface thereof, and each of the light sources is disposed corresponding to each of the openings of the concaves. The diffuser layer is supported by the ridges of the light reflective structure. In some aspects of the present invention, the diffuser layer may have a sloping inner surface or is coated with patterned diffuser coatings on the top surface. Each light source can be added with a lens.Type: GrantFiled: May 10, 2011Date of Patent: May 13, 2014Assignee: Luxingtek, Ltd.Inventors: Wen-Chiun Ing, Wei-Hsin Hou, Zhi-Wei Koh, Chi-Jen Kao
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Patent number: 8721129Abstract: An LED lamp set for enhancing illumination and eliminating ghost images includes a lamp shade, a diffusion membrane and a circuit board. The lamp shade has a plurality of light cups each having a housing chamber to hold at least one LED. The housing chamber has an aperture at the bottom run through by the LED to form electric connection with the circuit board and an opening remote from the aperture to define a light output surface. The diffusion membrane covers the light output surface and is made of a transparent material and includes a plurality of transparent bumps on the surface. The circuit board is located below the lamp shade. Through the concave shape of the light cups and repetitive reflection of the bumps, light can be condensed to avoid scattering and loss. Moreover, as the light is greatly and uniformly condensed, ghost images can be eliminated.Type: GrantFiled: January 26, 2012Date of Patent: May 13, 2014Inventor: Hui-Peng Tseng