Diffusing Type Patents (Class 362/246)
  • Patent number: 10260720
    Abstract: An area light includes a housing defining a central axis and including a first portion and a second portion, the second portion arranged to emit light. A lens is coupled to the housing, and a light assembly is disposed within the second portion. The light assembly includes a plurality of LEDs arranged to emit light through the lens and in a direction that extends 360 degrees around the central axis. A battery is selectively coupled to the housing and is arranged to provide power to the LEDs to allow for the emission of light at a level of at least 5700 lumens for at least two hours.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: April 16, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Ross McIntyre, Kyle Harvey
  • Patent number: 10215350
    Abstract: The invention provides a luminaire for illuminating a road, comprising a light source (10), a reflector arrangement (12) defining a light entrance window (18) at the top to which light is supplied by the light source (10) and a larger light exit window (20) at the bottom, and an optical plate (22) over the light exit window (20). The optical plate (22) comprises an array of elongate prisms which each extend in a side-to-side direction corresponding to the width direction of the road. The reflector (12) is primarily responsible for control of the light output in the road width direction and the optical plate (22) is primarily responsible for control of the light output in the road length direction.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: February 26, 2019
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventor: Arno Vredenborg
  • Patent number: 10060599
    Abstract: The present disclosure provides a light fixture attached to a wall or a ceiling to illuminate at least a portion of the ceiling. The light fixture can include a light source enclosed within the light fixture and configured to emanate light directionally away from the wall. The light fixture can include a protrusion. The protrusion can extend away from and below the light source. The protrusion can include a bent end that is bent upwards to direct light at a predetermined angle towards a ceiling. The light fixture can include an optic attached above the light source and extending above and externally towards the bent end of the protrusion. The optic can be configured to direct a portion of light towards the bent end.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 28, 2018
    Assignee: Integrated Illumination Systems, Inc.
    Inventor: Mark Alphonse Zampini
  • Patent number: 9671080
    Abstract: The invention relates to a lighting device (1) for a motor vehicle headlight, wherein the lighting device (1) has at least one reflector (10, 11, 12, 13), and assigned to the at least one reflector (10, 11, 12, 13) is at least one light source (20, 21, 22, 23), and light from the at least one light source (20, 21, 22, 23) is radiated into a region in front of the lighting device (1) by means of the reflector (10, 11, 12, 13) in order to form a light distribution or a part of a light distribution. The lighting device (1) has at least one, preferably exactly one reflector support (30), and the at least one reflector (10, 11, 12, 13) is fixedly attached to the at least one reflector support (30), and the at least one light source (20, 21, 22, 23) is arranged on at least one light source support (40, 41, 42, 43), and the at least one light source support (40, 41, 42, 43) is movably mounted on the reflector support (30) and can be fixed in a defined position relative to the reflector support (30).
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 6, 2017
    Assignee: ZKW GROUP GMBH
    Inventors: Christian Seyrlehner, Christoph Zeller
  • Patent number: 9488351
    Abstract: A system and method of converting a light fixture from a conventional light fixture to an LED light fixture. Originally, the light fixture has a sheet metal troffer, a power supply, and receptacles for retaining bulbs. The conversion is accomplished in the following manner. A circuit board assembly is provided that has a plurality of LEDs mounted thereon. An LED power supply is also provided. The original power supply is replaced with the LED power supply. The circuit board assembly is directly mounted to the sheet metal troffer, which acts as a heat sink.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: November 8, 2016
    Inventor: Oliver Szeto
  • Patent number: 9488337
    Abstract: Provided is a diffuser for a backlight and display device having the same. The display device may include a case, a display screen provided in the case, and a backlight provided behind the display screen. The backlight may include a first light panel, a second light panel provided adjacent the first light panel, and a diffuser provided over a boundary between the first and second light panels to diffuse light between the first and second light panels. The diffuser may have light blocking regions arranged in a prescribed pattern to diffuse the light.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: November 8, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jungwoon Park, Jongjin Kim, Youngil Kim, Yongshu Shin
  • Patent number: 9133993
    Abstract: The present invention provides an illumination device having a frame with an upper surface and a pair of opposing walls extending upward from lateral sides of the upper surface, a printed circuit board with a plurality of light emitting diodes that is secured to the upper surface of the device's frame, and an encapsulating material that substantially surrounds the printed circuit board to prevent the printed circuit board from being exposed to moisture and other elements.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: September 15, 2015
    Inventor: Philip Eric Devorris
  • Patent number: 9086592
    Abstract: Embodiments of the disclosed technology provide to a direct illumination type backlight module comprising: a bottom reflecting plate with a upper reflecting surface; a plurality of diffuse reflectors provided on the upper reflecting surface of the bottom reflecting plate, each of the diffuse reflectors having at least one diffusion reflecting surface; a light source array provided on the upper reflecting surface of the bottom reflecting plate and comprising a plurality of light emitting devices, a light emitting surface of each of the light emitting devices facing the diffusion reflecting surface of at least one of the diffuse reflectors so that light from the light emitting devices is scattered upwards by the diffuse reflectors; and a diffuser provided above the light source array. In addition, a bottom reflector and a liquid crystal display are also provided.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: July 21, 2015
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE CHATANI ELECTRONICS CO., LTD.
    Inventors: Dongsheng Yang, Fei Liu, Zhicheng Na
  • Patent number: 8998448
    Abstract: 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: Grant
    Filed: April 21, 2011
    Date of Patent: April 7, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shao-Han Chang
  • Patent number: 8985811
    Abstract: A LED luminaire includes a body portion having a lighting module and an optical structure formed integrally with the body portion. The optical structure is formed within the body portion and located in a light-projection direction of the lighting module. The optical structure substantially is a sheet-like structure with a first surface and a second surface. The first surface has at least two side portions with a first curvature, and the second surface has a second curvature. The first curvature is greater than the second curvature. Thereby, the view angle of the light is increased as the light generated from the lighting module passes through the optical structure.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: March 24, 2015
    Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
    Inventors: Jen-Min Huang, Chih-Lung Liang
  • Patent number: 8974084
    Abstract: Disclosed is an illuminating system of flexible shape and comprising at least one LED disposed on a flexible carrier material, an optic being provided that permits uniform, directed and/or glare-free light emission.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: March 10, 2015
    Assignee: OSRAM GmbH
    Inventor: Florian Wildner
  • Patent number: 8967843
    Abstract: A vehicle headlight includes at least one stationary reflector and at least one reflector adjustable with respect to the at least one stationary reflector. The headlight includes at least two light sources including at least one LED, wherein each of the reflectors is assigned at least one of the light sources, and an assembly body for fastening the at least one stationary reflector and the at least two light sources. The assembly body includes a main body, on which the at least one stationary reflector is assembled. and an exchange body, on which the at least two light sources are fastened. The main body has a through-opening for insertion of a light source support element from the side facing away from the reflectors. Referencing or positioning means are provided on the exchange body in order to fasten the two bodies to one another in a positionally accurate manner.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 3, 2015
    Assignee: Zizala Lichtsysteme GmbH
    Inventors: Christian Jackl, Irmgard Krenn, Markus Lahner
  • Patent number: 8960967
    Abstract: An intelligent light fixture is shown which allows for hands-free or automatic control of any desired combination of the color of the lighting beam, the focus position of the lighting beam, the movement of the lighting beam and projection of patterns created by the lighting beam. The intelligent light fixture is configured and mounted in such a way that all of the above can be accomplished from a single mounting position on top, or of within, the structure that holds the intelligent light fixture. The intelligent light fixture may be contained within a housing and said housing maybe mounted to a light pole.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 24, 2015
    Inventor: Ronald P. Harwood
  • Patent number: 8956010
    Abstract: A diffusing lens includes a first surface and a second surface facing away from the first surface. The first surface has a first negative Fresnel structure for diffusing light from a point light source. The second surface has a second negative Fresnel structure aligning with the first negative Fresnel structure and for further diffusing the light of the point light source.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: February 17, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Yung-Lun Huang
  • Patent number: 8950895
    Abstract: The present invention relates to a moving head light fixture comprising a base; a yoke connected rotatable to the base and a head connected rotatable to the yoke. The head comprises a number of light sources and a number of light collecting means arranged in the head, where the number of light collecting means collect and convert light from at least one of the light sources into a number of source light beams which are emitted from said head. The head comprises a diffuser cover, which comprises at least one diffuser region. The diffuser region receives and diffuses at least a part of the light and at least a part of the diffuser cover protrudes from the head. The invention relates to a illumination system comprising such a moving head and a diffuser cover protruding from the head of for a moving head light fixture.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: February 10, 2015
    Assignee: Martin Professional ApS
    Inventors: Thomas Vinther, Claus Hansen
  • Patent number: 8950903
    Abstract: The present invention relates to an LED light bulb emitting light rays in a downward direction comprising a lamp cap, a base, a lamp body and a lamp cover, characterized in that, a reflector assembly is arranged in the center of a spherical cavity of the lamp cover; the reflector assembly is composed of a reflector support and a reflector fastened to the reflector support; the reflector support is composed of a small-diameter upper ring, a large-diameter lower ring, a plurality of poles connecting the upper ring and the lower ring, and a fastener at the bottom of the lower ring for fastening the reflector; the reflector is composed of a trumpet-shaped milky cover and a hook fastener arranged on an inner ring surface of an opening at the bottom of the cover for fastening the fastener of the reflector support.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: February 10, 2015
    Inventors: Daisung Moon, Sangpil Moon
  • Patent number: 8920001
    Abstract: A light emitting device includes: a light source that emits light; a reflective unit disposed around a perimeter of the light source and having a reflective surface; and a diffusion unit that is disposed between the light source and the reflective surface and is configured to reflect a partial amount of the light emitted from the light source and transmit another partial amount of the light emitted from the light source toward the reflective surface.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: December 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong Jin Park
  • Patent number: 8919992
    Abstract: An LED lighting device may include an LED support, which is populated with at least one LED on a front side thereof and a rear side of which is fastened to a rest. The front side of the LED support may be overarched by an electrically insulating, light-permeable and diffusely scattering LED cover, and the LED cover may be overarched by a protection cover resting on the support.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: December 30, 2014
    Assignee: Osram AG
    Inventors: Harald Dellian, Thomas Preuschl
  • Patent number: 8922734
    Abstract: An exemplary lens for diffusing light from an LED to a diffusion plate of an LCD module, includes a light-refraction portion and a plurality of legs extending from the light-refraction portion. The light-refraction portion includes a light-incident face facing the LED and a light-emergent face opposite to the light-incident face and facing the diffusion plate. The light-incident face defines a plurality of dots therein. Each dot is a depression and has an inner face concaved from the light-incident face.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: December 30, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: I-Thun Lin
  • Patent number: 8894263
    Abstract: A display apparatus includes a light source, a display panel and an optical plate between the light source and the display panel. The optical plate includes a supporting sheet, a first, a second and a third optical layer. The first optical layer is disposed on a bottom surface of the supporting sheet and has a plurality of first protruding portions on a bottom surface of the first optical layer and has a first refractive index. The second optical layer is disposed on the bottom surface of the first optical layer and covers the first protruding portions. The second optical layer has a second refractive index larger than the first refractive index. The third optical layer is disposed on a top surface of the supporting sheet and has a plurality of second protruding portions on a top surface and has a third refractive index smaller than the second refractive index.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Yeol Yeom, Yongkyu Kang, Seunghwan Chung
  • Patent number: 8894251
    Abstract: A lighting device is provided in accordance with the present invention having reduced luminance and color unevenness. A plurality of solid-state light emitting elements are mounted on a base substrate. An optical member is further mounted on the substrate and arranged so as to cover light emitting surfaces of the light emitting elements, the optical member having a semicircular or semielliptical cross-sectional surface, and gutter-shaped in a longitudinal direction with respect to the substrate. A wavelength converting member covers the semicircular or semielliptical cross-sectional surface of the optical member, and is excitable by light from the solid-state light emitting elements to thereby emit wavelength-converted light. In various embodiments light diffusion members may be further distributed among the light emitting elements.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: November 25, 2014
    Assignee: Panasonic Corporation
    Inventors: Ryoji Yokotani, Keiji Kiba, Kenichiro Tanaka
  • Patent number: 8884786
    Abstract: The invention relates to a light sign (10) for displaying an instruction and/or guidance for ground airplane traffic at an airport, comprising a casing (20) with a transparent display panel (21) for representing an instruction and/or guidance symbol (Z), and a light source arranged inside the casing (20) with at least one luminescent diode (32) for illuminating the display panel (21). A diffusion panel (22) is made for scattering and/or back-scattering incident light, wherein the light source is arranged between the display panel and the diffusion panel. The at least one luminescent diode (32) is aligned on the diffusion panel (22) so that the display panel (21) is not illuminated directly, but indirectly by back-scattering of the light emitted from the at least one luminescent diode by the diffusion panel (22).
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: November 11, 2014
    Assignee: ADB BVBA
    Inventors: Martijn Beukema, Pierre Tremouroux
  • Patent number: 8878423
    Abstract: Disclosed is a light-emitting device, including an LED light source and a light diffusion element. The light diffusion element, covering at least a part of the LED light source, is composed of a first polymer, a second polymer, or a blend of them. The first polymer has a larger crystal diameter than that of the second polymer. The first polymer is made of polypropylene or ethylene-propylene copolymer. The second polymer is made of polyethylene, polypropylene, or ethylene-propylene copolymer. A blend of certain ratios of the first and second polymer gives rise of an excellent material that has improved light diffusion. This material can be widely adopted to current light fixtures for its evenly distributed lighting and great brightness.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: November 4, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Pei-Ying Chang, Shi-Ing Huang, Tien-Fu Huang, Chen-Dao Shiao
  • Patent number: 8833983
    Abstract: An LED lamp including a first light source device and a second light source device is provided. The first light source device has a light exiting surface and a connection portion, and is used for emitting a first illumination light through the light exiting surface. The light exiting surface surrounds the connection portion. The second light source device is connected to the connection portion, and is used for emitting a second illumination light.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: September 16, 2014
    Assignee: Young Lighting Technology Inc.
    Inventors: Wen-Chiao Chang, Fang-Ru Ye, Yao-Cheng Lue, Chen-Wei Chu, Udo Custodis
  • Publication number: 20140254155
    Abstract: According to an embodiment, a luminaire includes a plurality of light source units having mutually different characteristics; and a plurality of diffusing units configured to diffuse light emitted from the light source units and have mutually different characteristics.
    Type: Application
    Filed: August 29, 2013
    Publication date: September 11, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hirokuni HIGASHI, Shouta Koga, Tomoko Ishiwata
  • Patent number: 8804070
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight including a diffusion medium located between lamps and a diffusion plate to diffuse light. The diffusion medium includes an external band of square type diffusion medium and a plurality of ribs formed of the diffusion medium connected to both sides of the external band of square type diffusion medium. The ribs include a plurality of first ribs which are directly located over the lamps, a plurality of second ribs which are located between the first ribs, and a third rib which connects each of the ribs to each other.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: August 12, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong Min Moon, Eun Ju Kim
  • Publication number: 20140211469
    Abstract: A diffusing lens includes a first surface and a second surface facing away from the first surface. The first surface has a first negative Fresnel structure for diffusing light from a point light source. The second surface has a second negative Fresnel structure aligning with the first negative Fresnel structure and for further diffusing the light of the point light source.
    Type: Application
    Filed: June 24, 2013
    Publication date: July 31, 2014
    Inventor: YUNG-LUN HUANG
  • Patent number: 8770774
    Abstract: A ventilation fan with lights includes an exhaust fan, a lid, and an illumination apparatus. The lid covers an entrance of the exhaust fan. The lid has plural exhaust gratings and an opening. The exhaust gratings are arranged at least adjacent to opposite sides of the opening. The illumination apparatus is embedded in the opening of the lid. The illumination apparatus includes a lamp housing, a lamp plate, plural light emitting diodes (LEDs), a lampshade, and plural scattering microstructures. LEDs are arranged on the lamp plate. The lampshade covers the lamp housing. The lampshade and the lamp housing cooperate to define a lamp chamber therebetween. The lamp plate and the LEDs are disposed in the lamp chamber. The scattering microstructures are disposed on an inner surface of the lampshade facing the lamp chamber.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: July 8, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Long-Sing Ye, Yueh-Shan Lin, Wen-Hsiang Lin, Te-Chung Liu
  • Patent number: 8770806
    Abstract: A light emitting diode (LED) lighting module is provided including an LED array, and at least one of a diffusing portion and a reflecting portion. The LED array, equipped with at least one LED, may include a side wall which surrounds the at least one LED. The diffusing portion may be detachably coupled to the LED array and may include a diffusion plate which diffuses light emitted from the at least one LED The reflecting portion may be detachably coupled to one of the LED array and the diffusing portion and may reflect light emitted from the at least one LED. The LED array may be selectively coupled with the diffusing portion, the reflecting portion, or both the diffusing portion and the reflecting portion.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: July 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Hoe Koo, Chul Park, Yun Seok Woo, Il Seok Lee, Dong Il Lim, Deok Hee Hee Han
  • Patent number: 8764230
    Abstract: 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: Grant
    Filed: January 27, 2005
    Date of Patent: July 1, 2014
    Assignee: Koninklijke Philips N.V.
    Inventor: Horst Greiner
  • Patent number: 8764244
    Abstract: A light module may include a base having a first side and a second side, and a light source on the first side of the base and having a light emitting diode (LED) to emit light in a direction away from the base. A plurality of cooling fins may be provided on the second side of the base, the plurality of cooling fins including a first set of fins having a first height and a second set of fins having a second height, wherein the first height is less than the second height. A driving circuit may be provided on the first set of cooling fins having the first height, wherein the first set of cooling fins are provided between the driving circuit and the second side of the base.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: July 1, 2014
    Assignee: LG Electronics Inc.
    Inventors: Yongseog Jeon, Yongjin Kim, Jeongsoo Lee, Youngjae Cho, Moonsung Cho
  • Patent number: 8754778
    Abstract: The present invention relates to an exit sign retrofit lighting system kit including a low profile switch mode power supply contained in internal and external enclosure and use Light Emitting Diodes with long life. The system is powered by a high energy efficient switch mode power supply with low power consumption. The height of this lighting system is very close to half of one inch or less. This kit can be used to save energy in existing Exit Sign fixtures using Tungsten filament lamps or linear fluorescent lamp or compact fluorescent lamp. This kit can be also used with Box type and Edge lit Exit Signs. The long life time of Light Emitting Diodes makes it practically maintenance free, in addition to saving considerable energy.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: June 17, 2014
    Inventors: Jeffrey Winton, Joseph Nowik, Andrew Rybarski, Sri Sridharan
  • Patent number: 8746924
    Abstract: An apparatus for an illumination system including a concentric light source providing a quantity of light; a diffusion shield to diffuse the light and produce a diffused illumination where the diffused illumination is provided to a component positioned in an interior portion of the diffusion shield; a support structure where the diffusion shield is mechanically coupled with the support structure at a first base portion of the diffusion shield and where the concentric light sources are mechanically coupled with the support structure and positioned radially outward from the first base portion of the diffusion shield; and a harvesting shield where the harvesting shield is mechanically coupled with the support structure and positioned radially outward from the concentric light sources and where the harvesting shield redirects at least a portion of the quantity of light from the concentric light sources towards the diffusion shield.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: June 10, 2014
    Assignee: Rolls-Royce Corporation
    Inventors: Amir Shirkhodaie, Robert Moriarty, Kong Ma
  • Patent number: 8733969
    Abstract: Disclosed is a lighting fixture that provides approximately even illumination across a planar surface. Also enclosed is an LED light for producing the same. In one embodiment, the light fixture includes a plurality of hollow gradient diffusion globes; each diffusion globe is affixed to a planar reflector that forms an outer illumination surface of the light fixture. Each diffusion globe surrounds a light-emitting portion of an LED or LED cluster. The hollow gradient diffusion globe can include a wall defining by the interior and exterior boundary of the diffusion globe. The wall includes diffusing-particulate homogenously distributed within the wall that in combination with varying thickness of the wall creates continuously varying diffusion. The relative spacing of the diffusion globes on the planar reflective surface in combination with the continuous variable diffusion property of each globe produce approximately even illumination across the outer illumination surface of the LED light fixture.
    Type: Grant
    Filed: January 22, 2012
    Date of Patent: May 27, 2014
    Assignee: Ecolivegreen Corp.
    Inventors: Leonard C Bryan, Paul L. Culler
  • Patent number: 8721116
    Abstract: An LED panel assembly includes a circuit board having a plurality of LEDs. An LED seal louver is coupled over the circuit board. The LED seal louver includes a substrate and a pliable seal membrane. The substrate includes one or more substrate cavities. The pliable seal membrane is coupled with the substrate, and the pliable seal membrane includes a pliable material partially extending across the one or more substrate cavities. One or more LED passages extends through the pliable material adjacent to the substrate cavities. Each of the LED passages is sized and shaped to receive a single LED. Bulbs for one or more of the plurality of LEDs are correspondingly received within the LED passages, and the pliable material seals around each bulb with an interference fit. The bulbs are directly visible through the LED seal louver while the pliable seal membrane is sealed around the bulbs, and the circuit board is concealed by the LED seal louver and isolated from an environment exterior to the LED panel assembly.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: May 13, 2014
    Assignee: Daktronics, Inc.
    Inventor: Nathan Lane Nearman
  • Patent number: 8721115
    Abstract: 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: Grant
    Filed: May 10, 2011
    Date of Patent: May 13, 2014
    Assignee: Luxingtek, Ltd.
    Inventors: Wen-Chiun Ing, Wei-Hsin Hou, Zhi-Wei Koh, Chi-Jen Kao
  • Publication number: 20140119001
    Abstract: A lamp with uniform illumination pattern is used for continually illuminating an illuminated area and includes at least one light module. The at least one light module includes two light sources respectively having different light intensity and arranged orderly. Two extension cords of two optical axes of the two light sources have one crossover point. Light emitted from the light source with less light intensity illuminates the illuminated area which is closer to the light module, while light emitted from the light source with greater light intensity illuminates the illuminated area which is farther to the light module. Light emitted from the light source, which is father to the illuminated are, can make up the intensity losses of attenuation since light emitted from the light source which is father to the illuminated area have greater light intensity. As a result, the lamp has uniform illumination pattern.
    Type: Application
    Filed: July 3, 2013
    Publication date: May 1, 2014
    Applicants: NINGBO SELF ELECTRONICS CO., LTD., NINGBO HI-TECH PARK COIL ELECTRONICS CO., LTD., NINGBO HI-TECH PARK SELF ELECTRONICS CO., LTD., SELF ELECTRONICS USA CORPORATION
    Inventor: Wanjiong Lin
  • Patent number: 8696156
    Abstract: A LED light bulb (10, 110, 210) having at least one LED (30a-d, 230). Light output from the LED is directed toward an offset scattering optics structure (50, 150, 250) that intersects and scatters the light output. The LED may optionally be paired with a narrow beam optical piece (32a-d, 132a-d, 232) to focus and direct the light output of the LED toward the scattering optics structure. A mounting structure (40, 140, 240a, 240b) may support the scattering optics structure and offset the scattering optics structure from the LED.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 15, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Chuan Yuan, Yun Li, Mo Shen, Zhigang Pei, Ye Liu
  • Patent number: 8678605
    Abstract: A two-component light fixture that includes a passive component and an active component is disclosed. In some embodiments, the active component is recessed within a ceiling or wall and the passive component is positioned below the active component. The active component emits light towards the passive component, which includes an optical element that can redirect the light by scattering, reflection, refraction, diffusion, total internal reflection and/or dispersion.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: March 25, 2014
    Assignee: ABL IP Holding LLC
    Inventor: Kevin Franklin Leadford
  • Patent number: 8664891
    Abstract: A white light LED-based lighting device configured for direct form, fit, and function replacement of existing incandescent and fluorescent devices is provided. The white light LED-based lighting device comprises a group of solid state light emitting diodes, electronics to activate the light emitting diodes, and an encapsulating housing configured for direct form, fit, and function replacement of existing devices.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: March 4, 2014
    Assignee: LED Bulb L.L.C.
    Inventors: Troy R. Broitzman, Steven C. Furlong
  • Patent number: 8657469
    Abstract: A traffic light assembly includes at least one light module, at least one lens located in front of the at least one light module, a housing enclosing the at lest one light module and the at least one lens therein, and a foldable cover located in front of the at least one lens and connected to the housing. A cleaning device is located on an outer surface of the foldable cover to clean snow and dust accumulated on the outer surface of the foldable cover.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: February 25, 2014
    Assignee: Advanced Optoelectronic Technology, Inc.
    Inventors: Chi-Wei Liao, Wen-Liang Tseng, Min-Tsun Hsieh, Chih-Yung Lin, Ching-Lien Yeh
  • Patent number: 8657467
    Abstract: An illumination apparatus is disclosed in the invention. The illumination apparatus includes a cavity with a diffusion surface, a light source, a light-spreading device, and at least one optically-conditioning surface with a wave-like array formed thereon. The light-spreading device and the optically-conditioning surface spread the light generated by the light source. The light-spreading device includes a wing-shaped protrusion part, a light incident surface, a recess located away from the light incident surface, and an optically-conditioning surface including a wave-like array, wherein the wave-like array has a wavefront direction.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: February 25, 2014
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chou-Chih Yin, Chun-Chang Chen, Jen-Shui Wang, Chia-Fen Tsai, Yi-Ming Chen
  • Patent number: 8651685
    Abstract: Provided are solid state backlight devices and methods for forming the same. A solid state backlight unit according to some embodiments of the invention includes a housing having a major surface and multiple LEDs on a first surface of the major surface. The solid state backlight unit also includes a specular reflector proximate to the first surface of the major surface and oriented substantially perpendicular to the first surface of the major surface.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: February 18, 2014
    Assignee: Cree, Inc.
    Inventors: John K. Roberts, Chenhua You
  • Patent number: 8651695
    Abstract: A high intensity LED based lighting array for use in an obstruction light with efficient uniform light output is disclosed. The high intensity LED based lighting array has a ring assembly having a plurality of reflectors and light emitting diodes. The ring assembly has a planar surface mounting each of the plurality of primary reflectors in perpendicular relation to a respective one of the plurality of light emitting diodes. A secondary diffuser is positioned on the ring to mix light from the light emitting diodes to create a uniform light emission in a range of azimuth angles.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: February 18, 2014
    Assignee: Excelitas Technologies Corp.
    Inventors: Craig Fields, Ken Kochman, Kevin Brennan, Tom Papanek
  • Patent number: 8654068
    Abstract: Disclosed embodiments relate to techniques for enhancing luminance resolution in a backlight unit. A backlight unit may have light-emitting diode (LED) light sources arranged in strings. In one embodiment, a backlight controller provides enhanced luminance resolution by drive each LED string at either first or second consecutive luminance values corresponding to first and second duty cycles of a pulse width modulation (PWM) signal. The outputs of the LED strings are optically mixed to achieve intermediate luminance values between the first and second luminance values.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: February 18, 2014
    Assignee: Apple Inc.
    Inventor: Andrew P. Aitken
  • Patent number: 8632215
    Abstract: In various embodiments, an illumination device includes a housing, a power connector for connecting the illumination device to a power socket and receiving input power, a light emitter for direct illumination disposed within the housing, a circuit for regulating the input power and providing the regulated power to the light emitter, and a decorative illumination element for providing decorative illumination.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: January 21, 2014
    Assignee: TerraLUX, Inc.
    Inventors: Anthony Catalano, Daniel J. Harrison
  • Patent number: 8608350
    Abstract: A lighting device is provided to include a plurality of lens bodies. The connecting portion connecting the plurality of lens bodies includes a first major surface and a second major surface opposite to the first major surface. The first major surface is in contact with the lateral portion at a first contact under an outer edge of the leading lens. The second major surface is in contact with the lateral portion at a second contact located below the first contact. The first contact is located outside of a point of intersection along the first major surface with respect to the center of each lens body, the point of intersection at which an extraction of the first major surface intersects with an extension of a ray of the emitted light which is incident on the light incident surface and is projected on the second contact.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: December 17, 2013
    Assignee: Sanken Electric Co., Ltd.
    Inventor: Koji Otsuka
  • Patent number: 8596818
    Abstract: An optical member includes; an incident surface on which light is incident, an exit surface which is disposed substantially opposite the incident surface and from which the light exits, a prism pattern disposed on the exit surface, and a diffusion pattern which is aligned with the prism pattern and is disposed in a total internal reflection region in which the light incident on the incident surface is totally internally reflected by the prism pattern and output through the incident surface.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang-Woo Lee, Seung-Mo Kim, Jin-Sung Choi
  • Patent number: 8596829
    Abstract: A light flux controlling member has a flange projecting outward of a radial direction of a light controlling emission surface and leg parts arranged within a range of area width L in a back surface and on the reference optical axis side of the boundary between the flange and the light controlling emission surface, and L is given by L=t×tan(???), where: t is the thickness of the flange or the height from the back surface to the outermost rim part; ? is an angle of incidence of a light parallel to the reference optical axis and incident on the light controlling emission surface in the outermost rim part; and ? is an angle of emission, from the light controlling emission surface, of a refraction light generated when the light parallel to the reference optical axis is incident on the light controlling emission surface from the outermost rim part.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: December 3, 2013
    Assignee: Enplas Corporation
    Inventor: Masao Yamaguchi
  • Patent number: 8585237
    Abstract: A lighting module may be provided that includes a first and a second light sources, both of which are disposed opposite to each other; a first case including the first light source; a second case including the second light source; and an optical plate of which one side is connected to the first case and the other side is connected to the second case and on which light from the first and the second light sources is incident, wherein at least the first and/or the second light sources includes a light emitting diode (LED).
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: November 19, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Han Gyoul Kim, Young Kuk Kwak, Sang Jun Hong, Young Sik Kim