Plural Members Patents (Class 362/224)
  • Publication number: 20120268924
    Abstract: A light guide unit provided in this disclosure is used for performing a reversible optical conversion process on a light source. In an embodiment, the light guide unit is used for converting a planar light source into at least a linear light source, and then further to be converted into one point light source, while allowing beams emitted from the point light source to be guided and shot to a specific position by the use of a light-guiding element. Moreover, in another embodiment, the light guide unit is used for converting at least one point light source into at least a linear light source, and then further to be converted into a planar light source for emitting light. The light guide unit can be adapted for various applications, such as optical devices for illumination, entertainment, decoration or ornaments.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 25, 2012
    Applicant: Lattice Energy Technology Corporation
    Inventors: Jong-Woei Whang, Ta-Yi Chien, Hai-Yin Hsu, Kuan-Pei Chen, Fen-Ling Hu, Kuan-Yu Chen, Wei-Yu Lee, Kun-Yi Lee, Yen-Juei Lin
  • Patent number: 8267540
    Abstract: A linear lighting apparatus is disclosed. The apparatus includes an elongated element having a substantially U-shaped cross-section and an LED strip placed longitudinally along a bottom of the elongated element. The apparatus further includes a first flange located on both sides of an exterior of the elongated element and a second flange located on both sides of the exterior of the elongated element. The apparatus further includes a gutter located on both sides of an interior of the elongated element and a first optical element comprising an elongated planar element composed of optical material. The apparatus further includes a rim located on a top of both sides of the elongated element and a second optical element comprising an elongated planar element for placement on top of the horizontal surface of the rim.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: September 18, 2012
    Inventor: Sylwester Kluś
  • Patent number: 8215786
    Abstract: An elongated flexible lighting system according to the present invention comprises an array of light sources that are illuminated by electric power. It further comprises an elongated translucent extrusion of flexible material. The array of light sources is integral to the extrusion with said extrusion transmitting and dispersing the light from the array such that the lighting system gives the appearance that the array of light sources is a continuous light source. The elongated lighting system can be used for many different applications including, but not limited to, the lighting of structural features and illumination of sign features.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: July 10, 2012
    Assignee: The Sloan Company, Inc.
    Inventors: Thomas C. Sloan, Bruce Quaal
  • Patent number: 8201965
    Abstract: A modular light fixture having a construction that enables the same fixture to be used for standard on/off operation under control of a wall-mounted switch in a circuit by itself and/or with other fixtures and to be upgraded in “plug and play” fashion to operate independently of other fixtures in the same circuit and/or for stepped dimming. The modular construction of the fixture also allows for safety and ease of maintenance in that ballasts can be replaced without quickly and conveniently without exposing an electrician or maintenance worker to the internal wires of the fixture. The construction of the fixture also provides temperature management by isolating the temperature-sensitive components of the fixture from high temperatures while placing the lamps of the fixture in an enclosure, or shroud, in which temperature is contained so that the lamps operate efficiently.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: June 19, 2012
    Inventors: Jose Luiz Yamada, Mark E. Lewis, James A. Lewis
  • Patent number: 8109647
    Abstract: A lighting device includes a first lighting module, a second lighting module, a case coupled to the first and second lighting modules, and a power circuit between the first and second lighting modules. Each of the first and second lighting modules includes a plurality of light emitting diodes (LEDs), and bottom surfaces of the first and second lighting modules and the power circuit are aligned on substantially a same plane.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: February 7, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Kim Dong Soo, Kim Yun Ha
  • Publication number: 20120020069
    Abstract: A surface light source device includes a lamp post, a number of light sources distributed in rows on the side surfaces of the lamp post, and a number of first prism sheets and second prism sheets arranged around the lamp post in that order. Each of the first prism sheets and the second prism sheets includes a light incident surface and a light exit surface opposite to the light incident surface. Each of the light exit surfaces includes a number of substantially parallel elongated protrusions, and the longitudinal directions of the elongated protrusions of the first prism sheet and the second prism sheet are substantially perpendicular to each other. The first prism sheets and the lamp post are approximately spaced by a first predefined distance, and the second prism sheets and the first prism sheets are approximately spaced by a second predefined distance.
    Type: Application
    Filed: February 18, 2011
    Publication date: January 26, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Patent number: 8092064
    Abstract: Illumination assemblies, components, and related methods are described. An illumination assembly is provided that comprises a plurality of illumination tiles each having a light emission surface. The plurality of illumination tiles are arranged in a two-dimensional array. The illumination tiles are constructed and arranged so as to provide a substantially contiguous illumination surface comprising the light emission surfaces of the plurality of the illumination tiles. Each illumination tile is illuminated by at least one solid state light-emitting device. A method of local dimming an illumination assembly of a display (e.g., LCD) backlight unit is also provided.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: January 10, 2012
    Assignee: Rambus International Ltd.
    Inventors: Alexei A. Erchak, Robert F. Karlicek, David Doyle, Gianni Taraschi, Michael A. Joffe, Christian Hoepfner
  • Publication number: 20120002410
    Abstract: A light source capable of emitting light of which intensity is uniform throughout its length. A light source (1a) includes a fluorescent lamp (2) including a tube body (21) having a substantially linear shape and discharging electrodes (221, 222) disposed at both ends in an axial direction of the tube body, and a light guiding member (11a) having a substantially transparent color, a length in an axial direction shorter than a length in the axial direction of the tube body, and a linear shape, wherein the light guiding member is attached on an outer surface of the tube body at a section closer to one end in the axial direction of the tube body of the fluorescent lamp such that one end of the light guiding member is disposed close to the discharging electrode 222 at the one end of the fluorescent lamp.
    Type: Application
    Filed: December 24, 2009
    Publication date: January 5, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Ryuhei Kishimoto
  • Patent number: 8038315
    Abstract: A luminaire housing with a printed bottom panel is provided. The luminaire housing has a luminaire housing frame. The printed bottom panel is coupled to the luminaire housing frame and has a first surface generally facing the interior of the luminaire housing. The first surface of the printed bottom panel has an opaque ink layer applied thereto that defines a printed area. The printed area outlines at least one light permeable light passageway.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 18, 2011
    Inventors: Scott R. Santoro, Steven Johns
  • Patent number: 7993026
    Abstract: The invention disclosed a light source, comprising a light tube and a plurality of prism members disposed on an outer surface of the light tube for reducing amount of external lights entering the light tube. According to the invention, the prism members disposed on the outer surface of the light tube can not only focus the light emitting from the light tube, but also increase the possibility of total reflection of the incident light.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: August 9, 2011
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Daekeun Yoon, Chulyoun Kim, Haijun Liu
  • Patent number: 7976184
    Abstract: An illumination system includes an illumination source such as an array of LED's over which is provided a diffuser. The illumination source provides light which, because of light refraction, radiates generally uniformly from edge to edge of the diffuser. The diffuser may be a planar flat piece of may include a hollow, cup like structure formed by a frame with a cover. The illumination system may be scaled up to provide multiple such illumination devices side by side to provide a greater area or strength of illumination. Multiple systems may utilize multiple diffusers or a single diffuser covering multiple illumination sources. The illumination source may be mounted to a backplate or heatsink which is larger than the illumination source to facilitate the addition of further electronic circuitry and or mounting capabilities.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: July 12, 2011
    Assignee: Microscan Systems, Inc.
    Inventors: Michael C. Messina, Sheila Bergeron Dunn
  • Patent number: 7967479
    Abstract: An LED signal that includes a lens having an optical segment configured to direct at least some of the incoming generally collimated light rays from the sun passing through the lens away from an LED found in the traffic signal.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: June 28, 2011
    Assignee: GE Lighting Solutions, LLC
    Inventor: Eden Dubuc
  • Patent number: 7967477
    Abstract: An optical system includes a cylindrical side emitter lens, a reflector and a cylindrical Fresnel lens to produce a substantially uniformly illuminated exit plane with well collimated light in the forward direction. The cylindrical side emitter lens redirects light from a light source, such as a number of light emitting diodes placed in a straight line, into side emitted light along an optical axis that is parallel with the exit plane. The reflector may be a stepped multi-focal length reflector that includes multiple reflector surfaces with different focal lengths based on the surfaces distance to the light source and height to redirect light from the cylindrical side emitter lens to illuminate the exit plane and collimate the light along one axis in the forward direction. The cylindrical Fresnel lens is used to collimate the light along an orthogonal axis in the forward direction.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: June 28, 2011
    Assignee: Philips Lumileds Lighting Company LLC
    Inventors: Pascal J. H. Bloemen, Emanuel N. H. J. Stassar
  • Patent number: 7967466
    Abstract: A movable light bar assembly includes a primary frame having a side coupled with a secondary frame and an opposite side coupled with at least one lighting element and a battery element. The secondary frame has a surface provided with solar chips and is provided internally with a photoelectric transducer electrically connected to the battery element and the at least one lighting element. Each lighting element is provided with at least one light-emitting body and secured to the primary frame by a lamp cover. The battery element is secured to the primary frame by a battery cover. The primary frame is peripherally provided with at least one rotatable handle which, when angularly offset from the primary frame, serves to support the primary frame. The at least one handle is insertable into a fixing base and connectable with a hanging cord. The primary frame can be positioned at a lamp frame.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 28, 2011
    Assignee: System Photovoltaic Science Co., Ltd.
    Inventor: Ko-Chien Chu
  • Patent number: 7959319
    Abstract: A lamp includes a tube-shaped lamp shade with a space, a first light-emitting diode (LED) light source, a first diffuser, a second LED light source, a second diffuser, and two covers. A spacer extending along the direction of the length of the tube-shaped lamp shade is disposed in the space. The spacer has a first surface and a second surface, and the tube-shaped lamp shade has a first slot and a second slot. The first LED light source is disposed on the first surface. The first diffuser is disposed in the first slot, and a first hole is formed at the first diffuser. The second LED light source is disposed on the second surface. The second diffuser is disposed in the second slot. The two covers are disposed at two ends of the tube-shaped lamp shade respectively, and each cover has a second hole.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: June 14, 2011
    Assignee: Advanced Connectek Inc.
    Inventor: Wen-Hsiang Chien
  • Patent number: 7952656
    Abstract: A backlight assembly generating less noise after power is turned ON or OFF, and a liquid crystal display device comprising the backlight assembly. The backlight assembly includes an alignment plate having a plurality of socket insertion holes each having socket insertion hole sidewalls, wherein at least one projection is formed on an inner surface of a socket insertion hole sidewall. An outer surface of a socket inserted into the socket insertion hole comes into physical contact with the projection.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: May 31, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Min-Ho Ok
  • Patent number: 7931383
    Abstract: An illumination device is provided on a backside of a display panel so as to irradiate a display panel with light, the illumination device including a plurality of rod-like light sources arranged in a planar configuration such that they do not cross each other, and columnar members being respectively provided adjacent to the rod-like light sources, each columnar member including a light incidence plane through which light emitted from a longitudinal direction of the rod-like light sources enters, a first light exit plane arranged to emit the incoming light from the light incidence plane toward the display panel, and a first light reflecting plane arranged to reflect the incoming light from the light incidence plane to the light exit plane. Therefore, with the illumination device applied as a direct backlight, it is possible to reduce luminance unevenness in both a front direction and oblique directions sufficiently, so as to reduce the luminance unevenness of the backlight sufficiently, as a whole.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: April 26, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshiki Takata
  • Patent number: 7914170
    Abstract: Disclosed is a flatly designed interior light which is essentially characterized by a centrally arranged hollow profiled support (1) that is disposed between two final parts (15) and is provided with an interior receiving space (17) and exterior reflective surfaces (18,19,20,21) for two fluorescent lamps (2, 3) which adjoin the profiled support (1) and run parallel thereto, and light guiding chambers (6, 7) that are placed on both sides of the profiled support (1), extend to the lateral border of the light, and are closed by the light emission surface (13) facing the room. Preferably, the height of the light, which reaches a maximum in the region of the central profiled support (1), decreases continuously in the direction of the edges (11) of the light until reaching approximately the thickness of the components (8, 9, 10) that form the light emission surface (13) facing the room.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: March 29, 2011
    Inventor: Hartmut S. Engel
  • Patent number: 7901105
    Abstract: A lighting assembly is provided having a main housing and a lens assembly hinged to the main housing. The lens assembly has a body with end walls with a recess in an upper end of the end walls. The recess in each end wall has a dimension to receive and support a lens for directing light to the target area. The lens has a length greater than the length of the cover so that the ends of the lens extend beyond the outer edge of the end walls of the cover. Stop members are provided on the end walls to limit longitudinal movements of the lens with respect to the body of the lens assembly. A reflector extends from a bottom edge of the cover to an upper edge overlying a portion of the lens. A spring clip is provided to couple the lens to the reflector.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: March 8, 2011
    Assignee: Hubbell Incorporated
    Inventors: Wilton L. Fowler, Jr., Martin C. Werr, Randy K. Lewis
  • Publication number: 20110013387
    Abstract: An apparatus and method for providing a linear light source emitting light in a narrow cone of directions is disclosed. In one embodiment, the apparatus comprises a linear light source and a sheet designed in such a way that light is emanated out in a narrow set of directions. Also disclosed is a directional surface light source using a directional linear light source.
    Type: Application
    Filed: March 19, 2009
    Publication date: January 20, 2011
    Applicant: I2IC CORPORATION
    Inventors: Udayan Kanade, Pushkar Apte, Ruby Rama Praveen, Sanat Ganu, Sumeet Katariya, Alok Deshpande, Parag Khairnar
  • Patent number: 7854533
    Abstract: The invention disclosed a light source, comprising a light tube and a plurality of prism members disposed on an outer surface of the light tube for reducing amount of external lights entering the light tube. According to the invention, the prism members disposed on the outer surface of the light tube can not only focus the light emitting from the light tube, but also increase the possibility of total reflection of the incident light.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: December 21, 2010
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Daekeun Yoon, Chulyoun Kim, Haijun Liu
  • Patent number: 7845821
    Abstract: Fluorescent lighting fixture modules for indirect lighting of interior spaces, each module including at least one, and preferably a pair of side-by-side parallel linear indirect fluorescent lighting fixture elements suspended at fixed grid pattern locations beneath the ceiling of the open interior space. Each of the linear indirect lighting fixture elements is preferably no greater than approximately six feet in length with a suitable length being somewhat greater than four feet where a four foot lamp is used. Where the fixture elements are provided in pairs, each is suspended below the ceiling at its fixed grid location by a suitable hanger structure with a preferred overall fixture module width of approximately four feet.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: December 7, 2010
    Assignee: Acuity Brands, Inc.
    Inventors: Douglas J. Herst, Peter Y. Y. Ngai, Michael Trung Tran, Utkan Salman
  • Patent number: 7826008
    Abstract: The present inventions enhances the brightness at a center portion of a display screen in a liquid crystal display device used in a TV set having a direct backlight. Odd-number pieces of fluorescent lamps are used in the inside of the backlight. Using external electrode fluorescent lamps as the fluorescent lamps, electrodes of the respective fluorescent lamps can be connected in common. Further, one fluorescent lamp can be arranged at the center of the display screen. Due to such a constitution, the liquid crystal display device can effectively ensure the brightness at the center of the display screen.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: November 2, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventor: Masashi Baba
  • Patent number: 7771072
    Abstract: A backlight unit and a display device using the same include a light-guiding plate having a plurality of grooves, a plurality of light-emitting lamps in the respective grooves of the light-guiding plate, and a light-diffusion sheet above the light-guiding plate and the lamps.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: August 10, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Hyun Jin So
  • Patent number: 7766503
    Abstract: A ceiling light fixture for medical patient rooms and a method for the same. The fixture comprises a body which defines a middle region and two side regions along opposite sides of the middle region. A cover is movably attached to the body and includes a lens over at least the middle region. A graphics image is associated with the middle region and is substantially parallel to the lens. At least one graphics-light source is within the middle region and configured for illuminated display of the graphics image. At least one exam-light source is located within each of the two side regions.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: August 3, 2010
    Assignee: Kenall Manufacturing Co.
    Inventors: Nathan D. Heiking, James W. Hawkins
  • Patent number: 7753579
    Abstract: In a light guide plate and a display apparatus having the light guide plate, the light guide plate includes an incident face and a first exiting face. The incident face receives a light provided from an exterior. The first exiting face includes a first area and a second area. A first light-controlling pattern is formed in the second area. The first exiting face guides the incident light to the first area by the first light-controlling pattern and exits the guided light.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: July 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jae-Kwang Kim
  • Patent number: 7731391
    Abstract: An illumination system includes an illumination source such as an array of LED's over which is provided a diffuser. The illumination source provides light which, because of light refraction, radiates generally uniformly from edge to edge of the diffuser. The diffuser may be a planar flat piece of may include a hollow, cup like structure formed by a frame with a cover. The illumination system may be scaled up to provide multiple such illumination devices side by side to provide a greater area or strength of illumination. Multiple systems may utilize multiple diffusers or a single diffuser covering multiple illumination sources. The illumination source may be mounted to a backplate or heatsink which is larger than the illumination source to facilitate the addition of further electronic circuitry and or mounting capabilities.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: June 8, 2010
    Assignee: Microscan Systems, Inc.
    Inventors: Michael C. Messina, Sheila Bergeron Dunn
  • Patent number: 7726826
    Abstract: A thin direct-type backlight capable of realizing high brightness uniformity is provided by a specific configuration of the direct-type backlight whereby high light beam utilization ratio is maintained while periodical unevenness of the light emitting surface is suppressed. In a direct-type backlight device having a plurality of linear light sources in parallel, a reflection plate and a light diffusion plate, at least one of main surfaces of the light diffusion plate is provided with a prismatic ridges having a sawtooth-shaped cross-section. The apex angle “y” (degree) of the prismatic ridge of the light diffusion plate, the distance “a” (mm) between centers of the adjacent linear light sources, and the distance “b” (mm) from a center of the linear light sources to a surface of the light diffusion plate facing the light source satisfy the relationship of 80×(b/a)+15<y<180×(b/a)+70.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: June 1, 2010
    Assignee: Zeon Corporation
    Inventors: Kenji Kusano, Masahiko Hayashi, Keisuke Tsukada, Yasunori Takahashi
  • Patent number: 7703936
    Abstract: An illumination device, surface light source device, and an illumination unit are provided that provide increased and uniform emission brightness. The device includes parallel fluorescent lamps between a reflection sheet and light flux control member. A back face of the light flux control member includes recesses and curved surfaces connected to locations corresponding to those of the fluorescent lamps. Each recess and curved surface includes light entering surfaces. An entering surface causes light coming to areas corresponding to the fluorescent lamps, included in the light reaching a light diffusing member, to diverge smoothly. Another light entering surface and convex curved surface causes light coming to areas, which do not correspond to the fluorescent lamps, adjacent to areas corresponding to the fluorescent lamps to have light intensity increased to that of the light coming to the areas corresponding to the fluorescent lamps.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: April 27, 2010
    Assignee: Enplas Corporation
    Inventor: Shingo Ohkawa
  • Publication number: 20100053946
    Abstract: The invention relates to a flush-mounted flashing light for approach guidance of aircraft, having a housing which has a housing pot (10) which can be inserted below ground level (F) and a housing cover (12) which covers this approximately at ground level (F) and having an optical system, which is arranged in the housing for controlled production and directed emission of light flashes, which comprises a light source (20) for production of light flashes and a prism (40) for varying the direction of the beam direction of the light flashes, with at least one light outlet opening (13) being provided in the housing cover (12) for light flashes to emerge from in a predetermined emission direction.
    Type: Application
    Filed: October 9, 2006
    Publication date: March 4, 2010
    Inventors: Guy Laenen, Michel Vanderen, Jean-Claude Vandevoorde, Louis Villems
  • Patent number: 7637641
    Abstract: In a backlight assembly and a display device having the same, the backlight assembly includes a receiving container, a light source, a reflecting member and an optical member. The receiving container includes a bottom plate and a sidewall protruded from a side of the bottom plate. The light source is received in the receiving container. The light source generates light. The reflecting member is interposed between the bottom plate and the light source. The reflecting member has a protruded portion protruded upward to support the light source. The optical member is on the light source to improve optical characteristics of the light generated from the light source.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: December 29, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Sik Choi, Dong-Lyoul Shin
  • Patent number: 7611260
    Abstract: A light emitting diode (LED) lamp tube structure includes a tube, a circuit board, a plurality of LED lamps, two electric connectors and a protecting cover. The tube includes a plurality of heat dissipating holes. The circuit board is installed in the tube. The LED lamps are installed on the circuit board and electrically coupled to the circuit board. The two electric connectors are connected to both ends of the tube and electrically coupled to the circuit board. The protecting cover is installed onto the LED lamp tube and includes a board, and through holes disposed on the board and corresponding to the heat dissipating holes. Therefore, the LED lamp tube structure achieves a good heat dissipating effect and enhances the life of the LED lamp tube.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: November 3, 2009
    Assignees: Cpumate Inc., Golden Sun News Techniques Co., Ltd.
    Inventors: Kuo-Len Lin, Chen-Hsiang Lin, Ken Hsu, Chih-Hung Cheng
  • Patent number: 7592750
    Abstract: An external-electrode fluorescent lamp has two external electrodes disposed on its ends, wherein each external electrode has an extended portion flattened to form two substantially flat circumferential areas. With such flattened circumferential areas, the electric contact made to the conductive strip can be improved. For mounting a row of external-electrode fluorescent lamps, a mounting base with two electrically conductive strips are used. Each electrically conductive strip has a plurality of curved sections to fit the extended portion of the external electrode. The curved section has two substantially sidewalls to make contact with the flat circumferential areas of the extended portion of the external electrode. The extended portion can also be slightly tapered.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: September 22, 2009
    Assignee: AU Optronics Corporation
    Inventors: Yu-Chuan Lin, Kuo-Chih Lee
  • Patent number: 7588364
    Abstract: A spread illuminating apparatus includes a plurality of lighting units each of which includes a light conductor plate having a light outlet surface and a light inlet surface, and a light source disposed at the light inlet surface, and which are arranged two dimensionally with a predetermined distance provided between every two adjacent lighting units. The spread illuminating apparatus further includes a plurality of light transmissive members each of which is provided with means to reflect and diffuse light from the light source, and each of which is disposed at the light outlet surface side of the lighting unit. Leakage light from the light source is reflected and disused by the light transmissive member thereby reducing stray light, and at the same time the light transmissive member receives the leakage light and emits it from the outlet surface as effective light thereby enhancing the overall brightness in a uniform manner.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: September 15, 2009
    Assignee: Minebea Co., Ltd.
    Inventors: Atsushi Kitamura, Shigeyuki Adachi
  • Patent number: 7581845
    Abstract: In a backlight assembly and a liquid crystal display apparatus, the backlight assembly has lamps parallel to each other to emit a light, a receiving container having a bottom portion and a side portion to receive the lamps, and a mold member coupled to the receiving container to cover the ends of the lamps. The mold member has a reflecting face having a diffusion pattern that reflects the light from the lamps and an upper face extending from the reflecting face in a plane substantially parallel to the bottom portion. Thus, a shadow portion of the backlight assembly may be removed, to thereby enhance image display quality of the liquid crystal display apparatus.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: September 1, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jae-Sang Lee
  • Publication number: 20090154151
    Abstract: A lighting device is disclosed. The lighting device can include a base, a first light source housing, and a second light source housing. The first and second light source housings each can include a lighting element (e.g., a light-emitting diode). The first and second light source housings can be independently moveable relative to the base. For example, the first light source housing can be rotatable relative to the base around a first axis and a second axis, the first axis being substantially perpendicular to the second axis. Similarly, the second light source housing can be rotatable relative to the base around a third axis and a fourth axis, the third axis being substantially perpendicular to the fourth axis. The base can include a battery compartment and wires electrically connecting the battery compartment to the first and second light source housings.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Inventor: Jonathan E. Levine
  • Patent number: 7534007
    Abstract: A backlight module is disclosed. The backlight module includes a back plate, a diffuser and a supporter. The diffuser is disposed over the back plate. The supporter is disposed between the back plate and the diffuser and includes a seat and a fixing member. The fixing member has one or more protrusions formed thereon and the seat and fixing member are adapted to fix a light source.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: May 19, 2009
    Assignee: AU Optronics Corp.
    Inventors: Ching-Kun Lai, Chung-Te Lee
  • Patent number: 7513640
    Abstract: A light tube holder includes two internal sockets, an external socket and a plug. The internal sockets of the light tube holder can receive two pair of pins of a light tube. The external socket of the light tube holder can receive the plug of another light tube holder so that the light tube holders are connected to each other.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 7, 2009
    Assignee: Omnilux Lighting, LLC.
    Inventor: Westerveld Johannes Hendrikus
  • Publication number: 20090073682
    Abstract: The invention disclosed a light source, comprising a light tube and a plurality of prism members disposed on an outer surface of the light tube for reducing amount of external lights entering the light tube. According to the invention, the prism members disposed on the outer surface of the light tube can not only focus the light emitting from the light tube, but also increase the possibility of total reflection of the incident light.
    Type: Application
    Filed: May 29, 2008
    Publication date: March 19, 2009
    Inventors: Daekeun YOON, Chulyoun KIM, Haijun LIU
  • Publication number: 20090073683
    Abstract: A light guide plate includes a plurality of light guide units each including a light exit surface, a bottom surface, a first side surface and a second side surface. The first and the second side surfaces respectively include a first oblique surface and a second oblique surface. The first and the second oblique surfaces are opposite to each other and both adjoining the bottom surface. The first side surface of one of the each two adjacent light guide units is joined with the second side surface of the other one and thereby the light exit surfaces of the light guide units cooperatively form a substantially flat surface. The light guide units define a plurality of receiving cavities spaced apart from one another by the first and the second oblique surfaces thereof. In addition, a direct-type surface light source device using the light guide plate also is provided.
    Type: Application
    Filed: June 20, 2008
    Publication date: March 19, 2009
    Inventors: Chien-Hsiang Chen, Ming-Dah Liu
  • Publication number: 20090059121
    Abstract: An illumination device has at least one fluorescent tube, a lower frame supporting the fluorescent tube, a light diffusion plate which opposes the lower frame with the fluorescent tube being interposed therebetween for forward diffusion of output light of the fluorescent tube, a reflection sheet disposed along the fluorescent tube side of the lower frame for reflecting the fluorescent light toward the light diffuser plate, and an upside reflector covering an electrode of the fluorescent tube for reflecting the light toward the light diffuser. When letting a direction along a length of the fluorescent tube be a horizontal direction, a distance between the fluorescent tube and the reflection sheet at at least one of nearby portions of right and left ends of the illuminator is greater than such distance at a central portion thereof. A liquid crystal display (LCD) apparatus using the illuminator is also disclosed.
    Type: Application
    Filed: August 14, 2008
    Publication date: March 5, 2009
    Inventors: Akitoyo Konno, Yoshifumi Sekiguchi, Makoto Tsumura, Ikuo Hiyama, Daisuke Kajita
  • Publication number: 20090052169
    Abstract: The luminaire and the lamellae louver (20) have lamellae (10) which enclose an acute angle ? with a main plane S. The lamellae (10) may have a kink (13) in plane S, and additional kinks (14) laterally of the plane S. The lamellae (10) prevent glare in plane S and in surrounding planes and thereby allow the luminaire to meet the Unified Glare Rating.
    Type: Application
    Filed: February 27, 2007
    Publication date: February 26, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N V
    Inventor: Paulus Gerardus Henricus Kosters
  • Patent number: 7465072
    Abstract: A backlight unit includes: at least one lamp; and a plurality of optical sheets on the at least one lamp, the plurality of optical sheets having a micro-lens sheet.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: December 16, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Tae Hong, Sang-Yun Lee, Sung-Keun Lee
  • Patent number: 7465073
    Abstract: A backlight unit of an LCD device is provided. The backlight unit includes a light emitting unit, a light guide plate, a reflection plate and a light scattering unit. The light emitting unit has a passive light emission lamp that generates green light and a self-light emission lamp that generates red and blue light. The light guide plate is disposed between the passive light emission lamp and the self-light emission lamp. The light guide plate mixes the red and blue light emitted from the self-light emission type lamp and guides the mixed light to an upper side thereof. The reflection plate is disposed below the self-light emission lamp. In addition, the light scattering unit is disposed above the passive light emission type lamp.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 16, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Sun-Hwa Lee, Deuk-Su Lee
  • Publication number: 20080285267
    Abstract: A light control device implemented as a luminaire exhibits an ultra-wide batwing luminous intensity distribution in an upper hemisphere that provides substantially uniform illumination of a ceiling surface, even when the luminaire is mounted very close to the ceiling. Luminous side panel diffusers facilitate blending the luminaire with the ceiling surface as they create a batwing luminous intensity distribution in a lower hemisphere to evenly illuminate a work plane.
    Type: Application
    Filed: April 9, 2008
    Publication date: November 20, 2008
    Applicant: Ledalite Architectural Products, Inc.
    Inventor: Scott Santoro
  • Publication number: 20080273321
    Abstract: Disclosed is a light (1) comprising means (3a) for retaining and electrically connecting at least one elongate light source (2) and a light-influencing element (10) which is located next to the light source (2) and is composed of several individual elements (15). Said elements (15) that form the light-influencing element (10) can be swiveled or rotated independently of each other about an axis that extends substantially parallel to the longitudinal axis of the light source (2).
    Type: Application
    Filed: February 16, 2006
    Publication date: November 6, 2008
    Inventors: Anton Mundle, Gerald Ladstatter
  • Patent number: 7445358
    Abstract: A light guide plate of the invention has a plurality of unit light guide plates that are formed of a transparent resin material and which are joined together. Each of the unit light guide plates has a flat rectangular light exit surface and a back surface that is opposite the light exit surface and which has a parallel groove formed in generally a center and parallel to a side of the rectangular light exit surface. The light guide plate is used with a linear light source fitted in the parallel groove, satisfying the inequality (L0/280)2·k(14T2+710T)·(?0.65 log S+1.9)?10, where L0 is the length (mm) of the light guide plate, k is the linear expansion coefficient [/° C.] of the resin material, Ts is the surface temperature [° C.] of the linear light source that has become stable, S is half of the cross-sectional area [mm2] of the unit light guide plate as it is cut through a plane perpendicular to the parallel groove, and T=Ts ?25.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: November 4, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Motohiko Matsushita
  • Patent number: 7419278
    Abstract: A lamp guide holder includes a horizontal part that has a front surface and a rear surface, a fixing part that extends from the rear surface, and at least one lamp holding part on the front surface and having a ring shape. The lamp holding part has at least one protrusion on an inner surface thereof. The lamp guide holder further comprises a supporting part that extends from the front surface.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: September 2, 2008
    Assignee: LG. Display Co., Ltd
    Inventor: Sung-Yong Park
  • Patent number: 7401942
    Abstract: This invention is for electric power line attachment apparatus to hanging luminaire including fluorescent tube luminaire assembly, and includes a female connector attached to the luminaire and a power line connector cord male segment plugged into the female segment attached to the luminaire and the female segment and male segment of the connector cord is preferably a UNIVERSAL MATE-N-LOK insulated connector which is a trademark of AMP CO., a division of Tyco Co. of Harrisburg, Pa.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: July 22, 2008
    Assignee: Orion Energy Systems, Inc.
    Inventors: Neal R. Verfuerth, Michael J. Potts
  • Publication number: 20080151536
    Abstract: A glass wall (1) has two parallel wall elements (3), at least one of which consists of a material made of glass or a similar material, which is transparent to light, and behind which LEDs, with which the transparent wall element (3) can be lit translucently, are arranged in rows as illuminating devices. To achieve illumination of the glass wall (1) over the largest possible areas, provisions are made for LED light sources (7) to be arranged in a small number of illuminating groups on plate-like carriers (17) in the area of the front-side end of a narrow, elongated light chamber (6). A plurality of such light chambers are arranged separated by transverse walls (4, 4?, 5) in the vertical position next to each other or in the horizontal position one on top of another to form the glass wall (1). Each light chamber (6) has at least one translucent wall element (3) with an inner surface having a refractive and reflecting structure.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 26, 2008
    Inventor: Jurgen HESS