Fluorescent Type Patents (Class 362/260)
  • Patent number: 8164407
    Abstract: [Problems to be Solved] To solve a problem that introducing electric appliances such as a transmitter for transmitting micro radio waves such as Bluetooth and RFID, a transmitter for transmitting infrared rays, and a camera for capturing an image into an in-house requires a high cost. [Means to Solve the Problems] Energy is acquired from a magnetic field that is generated by a current for turning on a fluorescent lamp of a lighting equipment so as to drive the electric appliances such as a transmitter for transmitting micro radio waves such as Bluetooth and RFID, a transmitter for transmitting infrared rays, and a camera for capturing an image.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: April 24, 2012
    Assignee: NEC Corporation
    Inventor: Junichi Matsuda
  • Patent number: 8157412
    Abstract: A light emitting diode substrate assembly has a metal substrate, a circuit board, multiple chip strings, an annular wall and an encapsulant. The circuit board is mounted on the top surface of the substrate and has multiple through holes and multiple current conducting lines. The chip strings are mounted on the substrate and respectively in the through hole in the circuit board. Each chip string has at least one light emitting diode chip connected electrically to two corresponding current conducting lines on the circuit board with bonding wires. Accordingly, the heat generating during the operation of the chips can be efficiently dissipated from the substrate.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: April 17, 2012
    Assignee: Shin Zu Shing Co., Ltd.
    Inventors: Shun-Tian Lin, Chao-Tung Chung
  • Patent number: 8142039
    Abstract: A backlight assembly with reduced thickness, a reduced number of parts and a reduced probability of causing environmental contamination includes lamps, each lamp including a lamp tube and a pair of lamp electrodes disposed at ends of the lamp tube, respectively, a lamp-driving printed circuit board (“PCB”) which includes a plurality of conductive pads and a plurality of pairs of first socket-fixing grooves and provides a driving voltage to each of the lamps, sockets, each socket including a conductive body which includes a first guide groove, into which each of the lamp electrodes is inserted, and a pair of first fixing protrusions which is inserted into each pair of the first socket-fixing grooves, and a lower case which accommodates the lamp-driving PCB, the sockets, and the lamps, wherein each of the sockets is surface-mounted on a corresponding conductive pad.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: March 27, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyun-Chul Bae
  • Patent number: 8136958
    Abstract: A modular light fixture includes a fixture body having a frame with a top a bottom. The top defines a ballast channel and the bottom has a reflector formed from a sheet material. A lampholder is mounted to the frame and receives and electrically connects to a fluorescent tube positioned adjacent to the reflector. A detachable power pack is removable from the top of the frame and includes a ballast channel cover that detachably engages the ballast channel on the top of frame, and a ballast mounted to the ballast channel cover and having power input wiring, and ballast output wiring electrically connected to the lampholder. A power input connector has a socket portion mounted to the ballast channel cover and electrically connected to the power input wiring of the ballast, and a plug portion connected to a power supply line to provide electrical power from a power source.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: March 20, 2012
    Assignee: Orion Energy Systems, Inc.
    Inventors: Neal R. Verfuerth, Ronald E. Ernst, Kenneth J. Wetenkamp
  • Publication number: 20120063140
    Abstract: A lighting fixture includes a reflector reflecting light from a fluorescent lamp to a desired direction, and one or more lamp connectors connecting the reflector to rotatably and detachably coupling with the fluorescent lamp, wherein the reflector is adapted to selectively rotate with respect to an axis of the fluorescent lamp for reflecting light from the fluorescent lamp so as to change a light pattern of the fluorescent lamp towards an opening of the foldable housing. The foldable housing includes two side frames and a retention frame extended between the two side frames to retain a distance therebetween, wherein the side frames are pivotally coupled with the retention frame to fold between an unfolded position to retain the fluorescent lamp in longitudinal position and a folded position to form a compact size for storage and transportation.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 15, 2012
    Inventor: Qin Kong
  • Publication number: 20120051079
    Abstract: A lamp assembly is provided, that utilizes a light source including an LED element without cutting part of light therefrom and capable of forming a luminance distribution where the light with a maximum peak portion can be arranged substantially at (i.e., at or near) the cutoff line, thereby improving light utilization efficiency. The lamp assembly with an illumination direction can include a light source including an LED element with an emission surface, and a projection optical system for projecting an image of the light source in the illumination direction so that a desired light distribution pattern can be formed on a virtual vertical screen. The light source can have a rectangular shape having long sides and short sides, and can be configured to provide a luminance distribution on the emission surface such that a luminance peak portion is provided at or near one of the long sides.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 1, 2012
    Inventors: Tatsuma Saito, Yusuke Yokobayashi, Shigeru Murata
  • Patent number: 8124995
    Abstract: A semiconductor light-emitting device includes a semiconductor light-emitting element emitting light in a region ranging from ultraviolet to visible, and a visible-light luminescent element absorbing light emitted from the semiconductor light-emitting element and outputting visible light. The visible-light luminescent element includes a substrate, a light-reflecting layer formed on the substrate and containing light scattering particles, and a luminescent layer containing phosphor particles. The luminescent layer absorbs light emitted from the semiconductor light-emitting element and output visible light. The luminescent layer further absorbs light that is emitted from the semiconductor light-emitting element, arrives at and is reflected from the light scattering particles, and output the visible light.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: February 28, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasushi Hattori, Shinji Saito, Ryosuke Hiramatsu, Shinya Nunoue, Iwao Mitsuishi, Naotoshi Matsuda
  • Patent number: 8123376
    Abstract: A lighting device comprising first and second groups of solid state light emitters, which emit light having peak wavelength in ranges of from 430 nm to 480 nm, and first and second groups of lumiphors which emit light having dominant wavelength in the range of from 555 nm to 585 nm. In some embodiments, if current is supplied to a power line, a combination of (1) light exiting the lighting device which was emitted by the first group of emitters, and (2) light exiting the lighting device which was emitted by the first group of lumiphors would have a correlated color temperature which differs by at least 50 K from a correlated color temperature which would be emitted by a combination of (3) light exiting the lighting device which was emitted by the second group of emitters, and (4) light exiting the lighting device which was emitted by the second group of lumiphors.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: February 28, 2012
    Assignee: Cree, Inc.
    Inventors: Antony Paul Van De Ven, Gerald H. Negley
  • Patent number: 8112921
    Abstract: A sign comprising a surface having a display, and a plurality of sources of visible light. The sources of visible light are oriented to illuminate at least a portion of the display, and include solid state light emitters and/or luminescent materials. Line segments drawn on a Chromaticity Diagram connecting coordinates of some of the illumination color hues define a shape which encompasses coordinates of the display color hue(s). Also, a sign comprising a surface having a display having a surface area of at least 4 square meters, and at least 100 sources of visible light including solid state light emitters and/or luminescent materials. Also, a sign comprising a white light source and at least one additional source of light. Also, methods of illuminating signs.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: February 14, 2012
    Assignee: Cree, Inc.
    Inventors: Antony Paul Van De Ven, Gerald H. Negley
  • Patent number: 8113683
    Abstract: An HID luminaire includes a single luminaire housing that includes thermally isolated lamp and ballast compartments. At least one HID lamp is disposed within the luminaire housing, and at least one ballast is disposed within the ballast compartment. The lamp and ballast compartments are separated by a chamber that includes a substantially nonconductive member, which prevents heat from the lamp compartment from travelling to the ballast compartment. Thermally isolating the ballast from at least a portion of the heat generated by the HID lamp allows the ballast to be disposed relatively close to the HID lamp without becoming overheated and damaged. A hollow, threaded rod extends between and couples together the lamp compartment and ballast compartment. Electric wires connecting the HID lamp and ballast extends through the threaded rod, providing necessary electrical power in an aesthetically pleasing design.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: February 14, 2012
    Assignee: Cooper Technologies Company
    Inventors: Adrian Thomas Ehresman, Jeffrey Brian Nepple
  • Patent number: 8113684
    Abstract: Apparatus and methods for supporting a lamp. The apparatus may include a ballast, a rigid power distribution unit, and a lamp holder. The lamp holder may be in electrical communication with the rigid power distribution unit. The rigid power distribution unit may include a track that has conducting rails for supplying power to lamp holders. The track may be used to position lamp holders at any desired spacing so the track may be used in connection with fixture designs requiring different center-to-center lamp spacing. In some embodiments, the rigid power distribution unit may include a printed circuit board. The lamp holder may clamp or be soldered onto the printed circuit board and draw power from it. The printed circuit board may have traces from each lamp holder to be plugged into it.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: February 14, 2012
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Robert Quercia, Greg Galluccio, Antony Tufano, Francisco Schapira, Ruel Sarino
  • Patent number: 8111968
    Abstract: Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: February 7, 2012
    Assignee: RPC Photonics, Inc.
    Inventors: Stephen H. Chakmakjian, Donald J. Schertler, Tasso Sales, G. Michael Morris
  • Patent number: 8107807
    Abstract: A lighting device including a substrate, and at least three light emitting elements mounted on the substrate, each having an upper light emitting surface in rectangular shape and side light emitting surfaces in rectangular shape. The light emitting elements are positioned to surround a light-gathering region where the light emitting elements are not located, and one of the side light emitting surfaces of each light emitting element is directed to face approximately a central portion of the light-gathering region.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: January 31, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Iwanaga, Akio Amano, Kenji Shimomura, Kazuaki Ootsuka, Hideto Furuyama
  • Patent number: 8100555
    Abstract: It is a lighting apparatus 10 that has a light emitting element 16, a light emitting element housing 15 having a concave portion 28 that accommodates the light emitting element 16, and an optically transparent member 18 that airproofs a space B formed by the concave portion 28 and transmits light emitted from the light emitting element 16. The concave portion 28 is shaped to become wider toward the optically transparent member 18 from the bottom surface 28A of the concave portion 28. The lighting apparatus 10 is provided with a light shielding member 12 for shielding a part of light emitted from the light emitting element 16 is provided on the optically transparent member 18.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: January 24, 2012
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Mitsutoshi Higashii, Kei Murayama, Yuichi Taguchi, Masahiro Sunohara, Akinori Shiraishi
  • Patent number: 8100559
    Abstract: A compact fluorescent lamp luminaire with chambered structure to improve ventilation for controlling the temperature of ballasts and lamp in the luminaire. In such compact fluorescent lamp luminaires a plurality of compact fluorescent lamps is arranged inside a dome structure. The compact fluorescent lamps are powered through ballasts. Heat generated by the lamps is exhausted out of the luminaires without air heated by the lamps from passing through a chamber housing ballasts of the luminaire.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: January 24, 2012
    Assignee: Sportlite, Inc.
    Inventors: Dan Meadows, Kory Schuknecht, William E. Schrader
  • Publication number: 20120008324
    Abstract: A fluorescent lamp is provided that has a plurality of electroded tubes and a plurality of non-electroded tubes. The electroded tubes and the non-electroded tubes each have a proximal end and a distal end. Each proximal end is adjacent a base of the fluorescent lamp. A reflecting mirror is positioned in the proximal end of at least one of the non-electroded tubes or the electroded tubes. The reflecting mirror has a surface reflective of at least some frequencies of visible and ultra-violet light generated by the fluorescent lamp. The electroded tubes can also have a reflecting mirror positioned between the electrode and the end of the tube. In the latter case, an opposite surface of the reflecting mirror can include one or more of an end-of-life composition and/or a runner-up amalgam. A method of placing the reflecting mirror within a tube of a tubular fluorescent lamp is also provided.
    Type: Application
    Filed: May 26, 2011
    Publication date: January 12, 2012
    Applicant: OSRAM SYLANIA INC.
    Inventors: Heinz W. Ito, Robert Y. Pai
  • Patent number: 8087802
    Abstract: A cover for a spiral-type compact florescent lamp includes a cover body and a connector extending from the cover body to the compact florescent lamp and connecting the cover to the compact florescent lamp with the cover body disposed adjacent to the lamp coil structure and covering the lamp coil structure.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: January 3, 2012
    Inventor: David C. Hull
  • Publication number: 20110310612
    Abstract: The method is for directing light in a fluorescent piece. Sequentially placed wedge-shaped pieces (40-48) form a multiple-piece arrangement (38). Each piece has a base surface (12) and a sloping top surface (14) so that there is a first pointed end (20) at one end and a short end surface (18) at a second opposite end thereof. The pieces (40-48) are exposed to light beams that hit fluorescent particles (24) disposed inside the pieces. As a result, the particles emit a fluorescent light that are reflected off the inner surfaces of each piece as long as the light beams do not hit the surface at a perpendicular angle. The light beams (52a-52e) are directed to penetrate the short end of each piece to form a continuous illuminated surface (53).
    Type: Application
    Filed: July 28, 2009
    Publication date: December 22, 2011
    Inventor: Kurt Persson
  • Patent number: 8052294
    Abstract: A back light unit for a liquid crystal display device for improving uniformity of the light and dispensing with optical sheets. The back light unit includes a light source having a holographic pattern formed on a surface thereof opposite the display device which is to display a picture, and a reflective plate under the light source.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: November 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Man Hoan Lee, Sung Keun Lee
  • Patent number: 8038317
    Abstract: A lighting device comprising one or more solid state light emitters which emit ultraviolet light, one or more other emitters which emit light in the range of 430 nm to 480 nm and one or more other emitters which emit light in the range of 555 nm to 585 nm, to make a mixture which in the absence of any other light would be within an area defined by coordinates (0.32, 0.40), (0.36, 0.48), (0.43, 0.45), (0.42, 0.42), and (0.36, 0.38). One or more of the other emitters is a lumiphor. One or more of the other emitters can be a solid state light emitter. The lighting device may further comprise one or more 600 nm to 630 nm light emitters, and the lighting device may emit light within ten MacAdam ellipses of the blackbody locus. Also, packaged solid state light emitters and methods of lighting.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: October 18, 2011
    Assignee: Cree, Inc.
    Inventors: Antony Paul Van De Ven, Gerald H. Negley
  • Patent number: 8033688
    Abstract: A luminaire comprising a first hub comprising a first fixed portion rotatably coupled to a first rotor portion, said hub having an internal chamber, accessible through openings on the first fixed portion and the first rotor portion; a first lamp socket coupled to the first rotor portion of the first hub; a light rail affixed to the first rotor portion, said light rail having a bore the length of the light rail; a second hub comprising a second fixed portion rotatably coupled to a second rotor portion; and a second lamp socket coupled to the second rotor portion of the second hub, wherein a first set of one or more power wires is coupled to the first lamp socket, wherein a second set of power wires is disposed in the opening on the first fixed portion and further into the bore and is coupled to the second socket.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: October 11, 2011
    Inventors: Thomas Warton, Scott S. Yu
  • Patent number: 8025423
    Abstract: A system and method are provided for retrofitting a fluorescent lighting system, for example a passenger cabin fluorescent lighting system on a vehicle such as an aircraft. The present system may include at least one LED lighting unit for replacing, in situ, at least one fluorescent light of the fluorescent lighting system, and a control module for replacing, in situ, at least one ballast-type unit of the fluorescent lighting system that illuminates the at least one fluorescent light. The present system may further include a master control module, which may replace, in situ, an inverter of the fluorescent lighting system. The present method may include steps of: replacing at least one fluorescent light, in situ, with at least one LED lighting unit; and replacing at least one ballast-type unit, in situ, with at least one control module configured to control illumination of the LED lighting unit.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: September 27, 2011
    Assignee: B/E Aerospace, Inc.
    Inventors: Gary Hancock, Eric Johannessen
  • Patent number: 7972030
    Abstract: A lighting system comprises at least one excitation source (5), preferably an LED, operable to generate and radiate excitation radiation of a first wavelength (?1); a shade (4) configured to at least in part surround the at least one source (5) and remotely located thereto; and at least one phosphor (16) provided in or on at least a part of the shade (4), wherein the phosphor (16) emits radiation of a different wavelength in response to incident excitation radiation. The phosphor can be provided on a part of an outer or inner surface of the shade. Alternatively, or in addition, the phosphor is incorporated within the shade. The lighting system finds particular application as a hanging, a desk, a floor standing, a wall mountable, a spot, an outdoor or an accent lighting fixture.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: July 5, 2011
    Assignee: Intematix Corporation
    Inventor: Yi-Qun Li
  • Publication number: 20110134644
    Abstract: The present invention provides a reflector cup for a lamp, including a cup body, a cup top having an aperture through which a light source is inserted into the reflector cup, and a cup bottom provided with an opening for outputting lights from the light source. The cup body is provided with a plurality of recesses or protrusions that have a curvature different from that of a surface profile of the reflector cup. In one preferred embodiment, the cup body is provided with a plurality of grid veins arranged in a matrix, in each of the grid veins is formed a protruded or recessed curved surface. The curved surface may be spherical, cylindrical, conical or the like. The invention also provides a LED reflector lamp comprising the reflector cup.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 9, 2011
    Applicant: MASS TECHNOLOGY (H.K.) LIMITED
    Inventor: Onn Fah FOO
  • Patent number: 7950823
    Abstract: A lamp fixing unit capable of simplifying the manufacture of a backlight assembly by eliminating the need for manual procedures is presented. The lamp fixing unit includes a fixing member and a lamp holder. The fixing member includes a fixing body and at least one receiving portion. The lamp holder includes a holder body and a conductive socket. The holder body includes a board insertion portion, a power supply member, and a lamp fixing member. Thus, the power supply member may be easily coupled to and uncoupled from the lamp holder, and the lamp may be easily grounded.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: May 31, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Soo Kwon, Jung-Tae Kang, Jin-Ho Ha, Joo-Yeong Won, Yong-Seok Yang
  • Patent number: 7942545
    Abstract: A hatch is provided for a fluorescent lighting fixture having a continuous reflector covering the central section. The hatch is covered by a cover of compatible contour cut through the reflector underneath the location of the ballast in the housing above the reflector. The hatch cover is finished in the same surface as that of the reflector to minimize any disruption to the intended reflective pattern and to blend visually with the reflector. Two or more preferably quick-connect fasteners attach the hatch cover to the reflector. To gain access to the ballast, the lens or diffuser is removed and then the fluorescent lamp tubes which would interfere with the hatch cover are removed. The hatch cover is then removed to gain unobstructed access to the ballast from the underside of the fixture.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: May 17, 2011
    Assignee: Philips Electronics North America Corporation
    Inventors: Charles E. Kassay, Suzanne M. Pane, Marc A. Kassay, John Peter Kassay
  • Patent number: 7927892
    Abstract: A thermal treatment apparatus having a first light source emitting a first light having light diffusion property, a reflectance measuring unit irradiating a treatment target with the light from plural directions by the first light source and determining a light reflectance of the treatment target, a light irradiation controller adjusting an intensity of a second light of a second light source on the basis of the light reflectance, the second light has diffusion property, and a thermal treatment unit irradiating the treatment target with the second light having adjusted the intensity of the second light by the light irradiation controller.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: April 19, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Tomohiro Kubo
  • Patent number: 7922373
    Abstract: An image display apparatus includes a laser source for emitting ultraviolet or blue display-use laser light having a wavelength of 420 nm or less; and a display unit including a fluorescent light generating section for generating fluorescent light when irradiated with the display-use laser light, wherein the display unit displays an image using the fluorescent light generated by the fluorescent light generating section, wherein the display unit further includes an extraneous light shielding section for shielding an extraneous light which is emitted from a back side of the display unit and which has a wavelength in a range where the fluorescent light is generated so as to prevent the extraneous light from entering in the fluorescent light generating section.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: April 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Kazuhisa Yamamoto, Tetsuro Mizushima, Shinichi Kadowaki
  • Patent number: 7916116
    Abstract: A liquid crystal display comprising the feature that a backlight comprises a cold cathode ray tube disposed on a surface facing a liquid crystal display panel and a chassis for supporting the cold cathode ray tube, and the cold cathode ray tube is set so that a distance from the chassis at an end to which a high voltage is applied becomes larger than a distance from the chassis at an end to which a low voltage is applied.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: March 29, 2011
    Assignees: Hitachi Displays, Ltd., Hitachi Display Devices, Ltd.
    Inventors: Masashi Baba, Yoshikazu Nakada
  • Patent number: 7914177
    Abstract: A component with a yellow pigment that absorbs light wavelengths in the range 500 to 380 nm is provided for transparent or translucent components of a vehicle in order to protect healthy eyes, pseudophakic eyes, and eyes with macular and retinal degeneration from harmful ultraviolet rays. The component may be in the form of a filter that is applied on or within these transparent or translucent components of the vehicle.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 29, 2011
    Assignee: Universidad Complutense de Madrid
    Inventor: Celia Sanchez Ramos
  • Patent number: 7909476
    Abstract: A light source module of light emitting diode includes a substrate having circuits, a light-converted component, and several of light emitting diodes. The light-converted component includes a transparent substrate and a fluorescence material layer positioned on the transparent substrate. The fluorescence material layer is divided into a central region and several of surrounding regions surrounding the central region. The central region has a greatest concentration of fluorescence material. The concentration of fluorescence material in the surrounding regions decreases from the center to the outer periphery of the fluorescence material layer. The light emitting diodes form an array and are positioned on the substrate between the substrate and the fluorescence material layer. Each of the light emitting diodes is electrically connected to the circuits.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: March 22, 2011
    Assignee: Foxsemicon Integrated Technology, Inc.
    Inventors: Chun-Wei Wang, Hung-Kuang Hsu
  • Publication number: 20110063846
    Abstract: A light source includes an extended light source, a first optical element, and a second optical element. The first optical element is coupled to the extended light source. The second optical element is coupled to the first optical element. The second optical element has a central reflective member and a refractive member surrounding the central reflective member.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 17, 2011
    Inventors: Alexander Rizkin, Robert Tudhope, Keith Scott
  • Patent number: 7901111
    Abstract: A lighting device, comprising a solid state light emitter and a light filter. At least a portion of light emitted by the light emitter contacts the filter, and at least part of the light passes through the filter. Also, such lighting devices further comprising lumiphor, in which at least some of the first part of the light is absorbed by the lumiphor, which then emits light, and at least a portion of any light emitted by the lumiphor directed toward the filter is reflected by the filter. Also, a method of lighting, comprising illuminating a solid state light emitter in such devices. Also, a lighting device, comprising a solid state light emitter; a lumiphor and filter means for allowing at least a portion of light emitted by the light emitter to pass through and for reflecting a second portion of light emitted by the lumiphor after the lumiphor is excited.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 8, 2011
    Assignee: Cree, Inc.
    Inventors: Gerald H. Negley, Antony Paul Van De Ven, Paul Kenneth Pickard
  • Patent number: 7891830
    Abstract: There is explained a back light unit and a liquid crystal display using the same for improving brightness characteristic and difference of the color sense of a liquid crystal display having a direct-below-type back light. The back light unit and the liquid crystal display using the same according to an embodiment of the present invention includes a back light unit having a lamp housing, a plurality of lamps respectively having a first electrode and a second electrode and arranged in the lamp housing so that the first electrode and the second electrode are alternately disposed in one side of the lamp housing, a diffusion plate disposed on the lamp housing, and an optical sheet disposed on the diffusion plate; and a liquid crystal panel disposed on the back light unit having a plurality of liquid crystal cells arranged in a matrix form to thereby increase the brightness and minimize right/left difference of the color sense and improve picture quality.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: February 22, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Jun Han, Seong Hyun Yun
  • Publication number: 20110032705
    Abstract: Retrofitting lighting fixtures (e.g., HID based lighting fixtures) using a pin mounted PL style fluorescent based energy efficient light assembly and methods of installing retrofitting lighting fixtures are disclosed.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 10, 2011
    Applicant: Groom Energy Solutions
    Inventors: John F. Troller, Jonathan Guerster, Robinson J. Kirby, Mark Wedell
  • Publication number: 20110026257
    Abstract: A light-emitting device comprises a light source adapted to emit light of a first wavelength range; a reflective body comprising a reflective layer; a wavelength converting layer comprising a wavelength converting material adapted to absorb light of said first wavelength range and to emit light of a second wavelength range, said wavelength converting layer and said light source being arranged mutually spaced apart; and light-scattering elements adapted to scatter light of at least said first wavelength range; wherein at least part of said light-scattering elements are arranged in the path of light from said light source to said wavelength converting layer. The light-emitting device according to the invention provides improved uniformity in colour and also improved brightness uniformity.
    Type: Application
    Filed: March 30, 2009
    Publication date: February 3, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Petrus Adrianus Josephus Holten, Vincent Fabriek, Giorgia Tordini, Rene Theodorus Wegh, Bart-hendrik Huisman
  • Patent number: 7874707
    Abstract: A lighting fixture comprising a reflector 100 and a double-ended elongate lamp 200, the reflector body comprising a casing (110) with a specular cavity having an apex and an aperture rim, wherein the lamp end portions (220, 220?) of the double-ended lamp are enclosed in slots (131, 131?) located in the casing at opposite sides of the aperture rim and substantially flush with the aperture rim, is extremely flat and slim and therefore useful as a recessed down-light in a shelf, a ceiling, or a wall panel.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: January 25, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Oliver Boehme, Bruno Thoennessen
  • Patent number: 7862201
    Abstract: A lighting device comprises a serpentine shaped CCFL, a driver driving the CCFL, a connector that allows the device to connect to and receive power from conventional power sockets, and a fixture that connects them into a single device. Such device can be used for general lighting purposes and replaces incandescent and other fluorescent lamps in current use without having to change electrical sockets. The fixture mechanically connects the CCFL, the driver and the connector to form an unitary mechanical structure. Preferably an air gap is maintained between the CCFL and the driver.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: January 4, 2011
    Assignee: TBT Asset Management International Limited
    Inventors: Shichao Ge, Victor Lam
  • 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: 7841748
    Abstract: The diffractor has a profile defined by first, second and third parabolic segments, and continuously tapering facets for improved lighting performance. Different diffuser geometries are provided to generate differing light distribution patterns, including a conical diffuser, and a diffuser having a fresnel lens portion and an angled flange portion. Equal numbers of facets and/or facets of similar geometrical profile may be provided on the diffuser and on the diffractor.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: November 30, 2010
    Assignee: RLR Industries, Inc.
    Inventors: David D. Rodstein, Stewart B. Lewis
  • Patent number: 7832903
    Abstract: A device is provided for the treatment and prophylaxis of healthy eyes, pseudoaphakic eyes and/or eyes suffering macular and retinal degeneration that comprises a yellow filter applied to a conventional illumination system to protect them from short wavelengths of the visible spectrum under 500 nm and preferably in the range of 350 nm to 500 nm. This device the difficulties and risks of existing ways of protecting eyes undergoing cataract surgery and prevents or improves the degeneration of healthy eyes and those suffering neurodegeneration by the simple application of a protective filter to any lighting system. Embodiments of the invention comprise combining a conventional light source with a conventional yellow filter that absorbs wavelengths of light shorter than 500 nm so that the filter completely covers the illumination source.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: November 16, 2010
    Assignee: Universidad Complutense de Madrid
    Inventor: Celia Sanchez Ramos
  • Publication number: 20100284172
    Abstract: A lighting device having a reduced size. The lighting device has a support member (9) installed on an installation section (4c) of a backlight chassis (4), a power source substrate (6) placed behind the backlight chassis (4), and an insulation sheet (7) bonded to a bottom section (4a) of the backlight chassis (4). The installation section (4c) does not project rearward from the bottom section (4a) but projects forward. The support member (9) is installed so as not to project rearward from the bonding surface between the bottom section (4a) and the insulation sheet (7).
    Type: Application
    Filed: November 19, 2008
    Publication date: November 11, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Masashi Yokota
  • Patent number: 7828460
    Abstract: A lighting device comprising first and second groups of solid state light emitters, which emit light having peak wavelength in ranges of from 430 nm to 480 nm, and first and second groups of lumiphors which emit light having dominant wavelength in the range of from 555 nm to 585 nm. In some embodiments, if current is supplied to a power line, a combination of (1) light exiting the lighting device which was emitted by the first group of emitters, and (2) light exiting the lighting device which was emitted by the first group of lumiphors would have a correlated color temperature which differs by at least 50 K from a correlated color temperature which would be emitted by a combination of (3) light exiting the lighting device which was emitted by the second group of emitters, and (4) light exiting the lighting device which was emitted by the second group of lumiphors.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: November 9, 2010
    Assignee: Cree, Inc.
    Inventors: Antony Paul Van De Ven, Gerald H. Negley
  • Patent number: 7828471
    Abstract: An exemplary lamp assembly includes a light guide member, a light reflective member and a light source. The light guide member includes a light-emitting surface, a concave surface opposite to the light-emitting surface, and a light incident surface connected between the light emitting surface and the concave surface. The light reflective member includes a reflective surface opposite to the concave surface of the light guide member. The light source is arranged adjacent to the light incident surface of the light guide member. The light source includes a circuit board, a plurality of light emitting diodes, and two contact pins. The light emitting diodes are electrically mounted on the circuit board and face toward the light incident surface. The contact pins are electrically connected to the circuit board and extend in a direction away from the light incident surface for electrical connection to a power source.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: November 9, 2010
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: I-Thun Lin
  • Publication number: 20100277888
    Abstract: A task lighting apparatus produces glare-free illumination of a work area. The apparatus includes a shade defining a cavity having an opening, a light source positioned to emit light into the cavity, and a glare control member disposed within the opening wherein the diffuser comprises a louvered array of dual brightness enhancement film.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 4, 2010
    Inventor: Kuo-Tai YEH
  • Patent number: 7821188
    Abstract: To provide a lighting device capable of a substantial color adjustment and unlimited control of spectral components, a lighting device of the present invention puts a first transparent plate in which a phosphor layer dispersed with a first phosphor is formed in places and a second transparent plate in which a phosphor layer dispersed with a second phosphor is formed in places in a path of light from a light source, and stacks the first transparent plate and the second transparent plate on top of each other. The second phosphor differs from the first phosphor. How much in terms of area the phosphor layers overlap with each other is made variable, and the color tone of the lighting device can thus be controlled. The lighting device uses a blue light source as its light source, a green phosphor as the first phosphor, and a red phosphor as the second phosphor.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: October 26, 2010
    Assignee: Seiko Instruments Inc.
    Inventors: Makoto Kurihara, Masashi Ono
  • Patent number: 7810981
    Abstract: The present invention relates to a backlight for a liquid crystal display (LCD). The backlight can comprise a back cover including a bottom plate and side covers, a light guide plate disposed on the bottom plate, and cold cathode fluorescence lamps (CCFLs) located on the sides of the light guide plate and enclosed by the side covers. The CCFLs can be disposed on four sides of the light guide plate. The CCFLs can be two lamps in L shape or four lamps in a straight line shape disposed on the sides of the light plate, with high voltage ends of one CCFL adjacent to the low voltage ends of another CCFL, thus allowing the LCD lighter, slimmer and more compact in structure.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: October 12, 2010
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Yan Chen, Mili Fang
  • Patent number: 7811672
    Abstract: A LED lampshade suitable for mass production and characterized by extended LED working life is disclosed having a plastic lampshade body made by means of injection molding or pressure casting, and an in-mold decoration film directly bonded to the plastic lampshade body during the injection molding or pressure casting process. The in-mold decoration film comprises a base layer, a release layer covered on the base layer, a printing layer of a fluorescent substance or ink of a predetermined color, and an adhesive layer covered on the printing layer for bonding to the plastic lampshade body. The LED lampshade can be used with a blue LED to produce white light. The printing layer can be printed with different color inks for producing light of different colors.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: October 12, 2010
    Assignee: ULT Technology Co., Ltd.
    Inventor: Sheng-Li Hsu
  • Publication number: 20100253226
    Abstract: An energy-saving lighting fixture includes a light transmissive tubular enclosure including an inner tube defining an inner compartment therein, and an outer tube disposed around and spaced apart from the inner tube to define an outer compartment therebetween. As such, the tubular enclosure has a double-tube structure. A lamp assembly includes at least one lamp device disposed fixedly in the inner compartment of the tubular enclosure.
    Type: Application
    Filed: August 26, 2009
    Publication date: October 7, 2010
    Inventor: Isamu OKI
  • Patent number: 7802894
    Abstract: A back light unit for a liquid crystal display device for improving uniformity of the light and dispensing with optical sheets. The back light unit includes a light source having a holographic pattern formed on a surface thereof opposite the display device which is to display a picture, and a reflective plate under the light source.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: September 28, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Man Hoan Lee, Sung Keun Lee