Fluorescent Type Patents (Class 362/260)
  • Patent number: 7156540
    Abstract: A luminaire optical system (10) for an indirect light source including a tubular lamp (12) having a longitudinal axis (22), a first reflector assembly (14) extending parallel to and radially spaced directly above said lamp and a second reflector assembly (16) parallel to and radially spaced from said lamp directly below the lamp. Each of the assemblies includes symmetrical reflectors (22; 24; 30; 32) joining in an apex (26; 34) directly below and above the lamp. The bottom reflector (16) further may include two segments (30a; 30b; 32a; 32b) on each reflecting surface, the segments marking a sharp change in reflecting angle. Most such luminaires will typically also include perforations to maintain useful light profiles. The luminaire according to the present configuration increases the lighting efficiency by minimising any reflections passing back into the tube and ensuring an even spread of light throughout an area being illuminated.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: January 2, 2007
    Inventor: Christopher Alan Haines
  • Patent number: 7147346
    Abstract: The invention relates to a multifunctional lighting fixture having at least one fluorescent lamp mounted inside a flat lighting fixture housing comprised of two rectangular frames. Each frame consists of preferably only one lateral wing running parallel to the fluorescent lamp, and front wings situated therebetween, whereby spacer elements and edged spacer edge connectors hold the lateral wings and front wings of both frames at a predetermined distance. The lighting fixture can be combined in many ways both during initial assembly as well as for a subsequent conversion and can be assembled in the form of a built-on lamp or suspended lamp, a vertically or horizontally mounted wall lamp, floor lamp standing lamp or cable lighting fixture without modifying the base body of the lighting fixture. In addition, different light distributing elements can be used in an exchangeable manner so that the light is both directly oriented onto a useful surface as well as deflected in an indirect and preferably colored manner.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: December 12, 2006
    Assignee: Grimmeisen Vertriebs GmbH
    Inventor: Gerhard Grimmeisen
  • Patent number: 7134761
    Abstract: An arrangement for emitting light includes a hermetically sealed casing with a window, a layer of a fluorescent substance arranged within the casing covering at least a major part of the window, an electron emitting cathode arranged within the casing, and an anode. The casing is filled with a gas suitable for electron avalanche amplification. In operation, the cathode and anode are held at an electric potential such that said emitted electrons are accelerated and avalanche amplified in the gas. The layer of the fluorescent substance is arranged to emit light through the window in response to avalanche amplified electron bombardment and/or ultraviolet light emitted from the gas.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: November 14, 2006
    Assignee: Light-Lab AB
    Inventor: Tom Francke
  • Patent number: 7128448
    Abstract: The invention relates to an electric lamp including at least one vessel for producing and emitting visible electromagnetic radiation, a base for securing and making electrical contact with the lamp in a luminaire fitting, and a connecting part which connects the base to one of the remaining parts of the lamp. The connecting part is in the form of a rotationally symmetrical rotary device which allows the remaining parts of the lamp to be rotated with respect to the base, when the base is secured in the fitting, about the axis of the lamp.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: October 31, 2006
    Assignee: Patent-Treuhand-Gesellschaft fur Elektrisch Gluhlampen mbH
    Inventors: Klaus Fischer, Andreas Jakob
  • Patent number: 7125158
    Abstract: A lamp (L) having tubular end contacts (L1) adapted for insertion into opposite lamp holders (P), each lamp holder (P) having a body (S) in an insulating material and a contact element (C) shaped to provide a seat for the lamp contact (L1). In one embodiment, the seat comprises a cylindrical central portion (C1) positioned between flexible opposite arched walls (C2) with two upper divergent flanges (C2a). The lamp end contacts (L1) are positioned between the flexible arched walls (C2) of the contacts (C), in order to receive the cylindrical parts (C1) of the seats of the contact elements (C) inside the end contacts (L1) of the lamp (L). By the rotation of the lamp (L) around the cylindrical parts (C1) of the contact elements (C), an unwanted removal of the lamp (L) from the lamp holders (P) is prevented.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: October 24, 2006
    Inventor: Lino Zonta
  • Patent number: 7125159
    Abstract: A fluorescent adapter having a housing including a tip contact compatible with an electrical socket, a threaded ring contact compatible with the electrical socket, the ring contact surrounding the housing and rotatable with the housing when the housing is rotated in a first direction and not rotatable with the housing when the housing is rotated in an opposite direction, and a fluorescent ballast supported by the housing and having input electrodes in electrical contact with the tip contact and the ring contact, respectively, and output electrodes for removably receiving the contact pins of a fluorescent lamp. The adapter is easily inserted into the socket but is not removable after insertion.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: October 24, 2006
    Assignee: Sea Gull Lighting Products, Inc.
    Inventors: Michael E. Hirsch, Douglas R. Bray
  • Patent number: 7121682
    Abstract: The present invention provides a scanning device including a lamp, an object, and a transparency (or a reflector). The present invention changes the optical path by varying the shape of tube wall of lamp, the transparency or the reflector to compensate the light in the boundary regions of the lamp. Moreover, the present invention is capable of reducing the dimension of the scanning device.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: October 17, 2006
    Assignee: Lite-On Technology Corporation
    Inventor: Hsin-Tang Chien
  • Patent number: 7121681
    Abstract: A fluorescent lamp system is provided that facilitates high-brightness in a compact size needed for liquid crystal displays. The fluorescent lamp system comprises a lamp having a plurality of interdigitated legs arranged in multiple planes. By arranging the interdigitated legs in multiple planes, the lamp system efficiently fills the available space, thus maximizing the lamp surface area in general, and the lamp surface area oriented toward the display in particular, all while maintaining relatively small overall dimensions. The lamp system is thus able to provide the high-brightness needed for displays in a compact size.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: October 17, 2006
    Assignee: Honeywell International, Inc.
    Inventors: Brian D. Cull, Allen E. Harris, Elias S. Haim, Danny Lee Heath, Jr.
  • Patent number: 7121684
    Abstract: The present invention relates to a garage light assembly having a housing with a lamp mounting surface wherein a main high intensity discharge lamp and an auxiliary circular high output fluorescent lamp are mounted. The auxiliary lamp is mounted centrally within the assembly and above the light emitting portion of the high intensity discharge lamp so that the light pattern emitted from the auxiliary lamp is symmetrical and the auxiliary lamp does not shadow the light emitted from the high intensity discharge lamp.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: October 17, 2006
    Assignee: Genlyte Thomas Group, LLC
    Inventors: Claude Barozzini, Robert L. Summerford
  • Patent number: 7114830
    Abstract: The present invention provides several embodiments of an elongate hollow tubular or solid rod lighting device including a plurality of LEDs therewith and appropriate electrical componentry, and serving as a direct replacement for a conventional fluorescent light tube in a conventional fluorescent lighting fixture. The present lighting device includes appropriate connector pins extending from each end thereof, enabling the device to be installed in a conventional fluorescent lighting fixture with no modification to the fixture. The light may include appropriate electrical componentry such as a step-down transformer to provide the required voltage for the LEDs, either integrally within the light, incorporated in an end cap thereof, or installed separately therefrom in the fixture, as desired. The light may be colored or tinted as desired by the use of LEDs providing the desired color output, and/or by installing a tinted sleeve over the tube or rod as desired.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: October 3, 2006
    Assignee: Plastic Inventions and Patents, Inc.
    Inventors: Jonas J. Robertson, Robert M. Currie
  • Patent number: 7108398
    Abstract: A luminaire has a plurality of reflecting lamellae between side reflectors. The lamellae each have an outer edge, an inner surface facing away from the outer edge, and a plane of symmetry through the outer edge and the inner surface. The lamellae have a resin body and a recess in the inner surface, in the plane of symmetry. The recess has a bottom surface transverse to the plane of symmetry and substantially parallel walls along said plane. The recess may widen stepwise from the bottom plane towards the inner surface. The lamellae, as compared with metal lamellae, provide a greater freedom to choose their shape and are less expensive. They nevertheless avoid the occurrence of reflections on the side reflectors, which cause unpleasant bright spots within the cut-off angle of the luminaire. A lamellae grid suitable for the luminaire has strips interconnecting, and integral with, the lamellae.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: September 19, 2006
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventor: Petrus Adrianus Josephus Holten
  • Patent number: 7101069
    Abstract: A direct backlight module. The direct backlight module includes a diffuser, a reflecting plate, an illumination tube and a support. The reflecting plate is disposed under the diffuser. The illumination tube is disposed between the diffuser and the reflecting plate. The support is disposed on the reflecting plate and between the diffuser and the reflecting plate. In addition, the support has a fitting portion into which the illumination tube directly fits. The support supports the diffuser and the illumination tube simultaneously.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: September 5, 2006
    Assignee: Au Optronics Corp.
    Inventors: Chuan-Pei Yu, Han-Chou Liu, Chin-Kun Hsieh
  • Patent number: 7097327
    Abstract: A lever pivot safety stop socket for fluorescent lamps. The device consists of a molded plastic housing which includes electrical contact strips, attached to power leads; and a plastic, levered and slotted rotor. The rotor fits into an opening in the housing face, leaving its lever portion outside, and able to turn the rotor. Both housing top and lever portion include a wide slot, and when the lever is pointing towards the housing top, the slots line up. This is the lamp installation position, allowing lamp terminal end pins to be easily dropped into the housing slot and into the rotor slots. The lamp can then be rotated a quarter turn in either direction by the lever, to make a full connection with the power contacts in the housing. Provision is made so that no more than a quarter turn can be made from the installation position in either direction, avoiding “opens”, arcing and possible damage. A mounting bracket is attached to the housing for mounting the socket.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: August 29, 2006
    Inventor: Daniel W Barton
  • Patent number: 7080922
    Abstract: A parallelepiped lamp frame comprises a support unit comprising a lower case and two support members on two sides of the lower case, each support member having a plurality of lengthwise spaced apertures; and an CCFL assembly comprising a plurality of parallel lamps each supported by a pair of opposite apertures wherein each aperture has an inner diameter larger than an outer diameter of the lamp, and the lamp is divided into a connecting portion projected from the support members, and an illumination portion. It is possible of replacing a malfunctioned lamp without detaching the upper case. Further, high temperature at both ends of the lamps can be reduced significantly by heat convection by exposing the connecting portion, thereby prolonging a useful life of the CCFL assembly.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: July 25, 2006
    Assignee: Zippy Technology Corp.
    Inventor: Chin-Wen Chou
  • Patent number: 7080923
    Abstract: A retrofit unit for a fluorescent lighting fixture having a chamber with a ballast and a plurality of downwardly extending lamp holders for enclosing an existing fluorescent strip light fixture, wherein neither the ballast nor the lamp holders of the existing fluorescent lighting fixture need be removed to receive this retrofit unit.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: July 25, 2006
    Assignee: Genlyte Thomas Group, LLC
    Inventors: Carlton Plunk, Christopher Patrick Warner
  • Patent number: 7077543
    Abstract: A liquid crystal display having a liquid crystal display panel for modulating light to form an image and a back light unit having a plurality of lamp tubes without inside electrodes and which are discharged by outside electrodes disposed along an outer surface of the at least one lamp tube, the back light unit being disposed behind the liquid crystal display panel. One outside electrode disposed at the at least one of the plurality of lamp tubes is electrically connected with another outside electrode disposed at an another adjacent lamp tube.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: July 18, 2006
    Assignees: Hitachi, Ltd., Hitachi Electronic Devices Co., Ltd.
    Inventors: Seiichi Nishiyama, Shigetake Takaku, Yoshiharu Takeda, Shigeo Mikoshiba, Tomokazu Shiga, Koji Hashimoto
  • Patent number: 7070303
    Abstract: A fluorescent light fixture includes a housing having an elongated horizontal top surface with side edges and edges at opposite ends of the top surface. Oblique walls extend from the side edges of the top surface, and flare downwardly and outwardly from the side edges. The end walls extend downwardly from the top surface, the oblique and end walls joining to form a downwardly facing opening in the housing. A plurality of generally downwardly facing reflectors within the housing extend the length thereof. Fluorescent light bulbs are mounted parallel to each other in the housing beneath the reflectors, so that light from the light bulbs reaching the reflectors is reflected generally downwardly. The oblique walls and an end reflector are configured to direct a portion of light from one or more light bulbs under each end reflector in a generally upwardly direction to provide indirect lighting.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: July 4, 2006
    Inventors: Charles E. Kassay, Suzanne M. Kassay, Marc A. Kassay, John P. Kassay
  • Patent number: 7066617
    Abstract: A downward illumination assembly for directing light downward from the ceiling area of a room includes a lamp housing having a closed upper end, an open lower end disposed axially opposite the closed upper end, and a housing wall extending from around a periphery of the upper end to and defining the open lower end. The lower end is positioned adjacent an opening in a ceiling panel. A lamp is supported in a lamp socket within the lamp housing in a position to radiate light through the lower end of the housing and through the opening in the ceiling panel. A module is removably supported on the housing and carries the lamp socket. The lamp socket is removable from the lamp housing with the module to allow the lamp socket and/or associated wiring to be serviced or replaced without removing the lamp housing from the ceiling panel or disconnecting and lowering the ceiling panel from its support structure.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: June 27, 2006
    Assignee: Man-D-Tec
    Inventors: Terry R. Mandy, Dalton J. Mandy, Brandon R. Mandy
  • Patent number: 7063439
    Abstract: A backlight module which includes at least a U-shaped fluorescent tube, a first and a second heat-dissipating structure is provided. The U-shaped fluorescent tube includes a curved tube portion, two straight-tube luminous portions and two electrode portions. Of which, each of the two straight luminous sections has one end connected to one or the other end of the curved tube portion while the two electrode portions are correspondingly disposed at the other end of the two straight-tube luminous portions which are of equal length, parallel to each other and situated at the same side of the curved tube portion. The first heat-dissipating structure which envelops the entire or partial of curved tube portion is thermal-conductively connected to the curved tube portion. The second heat-dissipating structure which envelops one of the two electrode portions is thermal-conductively connected to the enveloped electrode portion.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: June 20, 2006
    Assignee: Au Optronics Corp.
    Inventors: Chung Peng, Chih-Kang Wu
  • Patent number: 7055985
    Abstract: A light-source assembly of a backlight module provides light sources to a liquid crystal display. The light-source assembly of the backlight module includes a bottom plate, a driving circuit board and a plurality of light-emitting elements. The driving circuit board is disposed in the middle of the bottom plate. The light-emitting element has two electrodes disposed at two ends of the light-emitting element and a uniform light section disposed on a tube body of the light-emitting element, wherein the electrodes of the light-emitting elements are respectively interlaced and connected to the driving circuit board. Simultaneously the uniform light portions are expanded to two sides of the driving circuit board outside, and the uniform light portion of the adjacent light-emitting elements located at the driving circuit board are also interlaced in parallel.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: June 6, 2006
    Assignee: Zippy Technology Corp.
    Inventors: Chin-Wen Chou, Eddie Cheng
  • Patent number: 7057821
    Abstract: An artificial and natural lighting system placed in the roof of a building that is substantially self-contained and powered. A photovoltaic cell provides electricity stored in a battery to power light emitting diodes. A highly reflective interior coating applied to the light shaft maximizes lighting intensity. A sensor detects illumination intensity and temperature within the light shaft to control the balance of natural and artificial light provided to maintain predetermined illumination intensity. The light shaft is insulated to reduce heat transfer and a thermal collector removes heat from the building. In one embodiment, a Fresnel lens is utilized to focus natural light onto the photovoltaic cell. In another embodiment, conventional fluorescent lighting powered by external line voltage is combined with light emitting diodes powered primarily by a rechargeable battery.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: June 6, 2006
    Inventor: Robert Zincone
  • Patent number: 7052157
    Abstract: A multiple function lighting fixture that uses compact fluorescent lamps (CFL), and circular fluorescent lamps positioned in strategic locations inside a lampshade. A shield within the lampshade divides the area into a primary interior zone and a secondary interior zone. One of the respective lamps is located in each of the respective interior zones. One of the lamps provides for upwardly directed light and the other lamp provides downwardly directed light. The inner and outer surfaces of the shield may have reflective properties. The lampshade may have portions thereof having light transmitting properties. The inner surface of the lampshade may have reflective properties in some areas. LEDs may be mounted in various areas of the respective primary interior zone and secondary interior zones. The light fixture may also have dimmer control switches/sensors and there may be sensors for remote control operation for turning the respective lamps on and off.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: May 30, 2006
    Inventor: Kenneth H. Lau
  • Patent number: 7048410
    Abstract: A support and enclosure structure for fluorescent light bulbs includes an elongated, hollow tube having opposite ends, an outer wall and an inner volume, and at least one ventilation opening extending through the outer wall for permitting air flow between the inner volume of the tube and the surrounding environment for cooling of the fluorescent light bulb held there within. End caps are mounted on opposite ends of the tube, the end caps adapted to engage opposite ends of the fluorescent light bulb and support the fluorescent light bulb within the inner volume of the tube free of contact with the outer wall of the tube. Finally, the tube is constructed of a generally rigid, at least partially translucent materials, such that light emitted by the fluorescent light bulb held within the tube generally radiates through the outer wall of the tube into the surrounding environment.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: May 23, 2006
    Inventor: Murray Kutler
  • Patent number: 7049748
    Abstract: A gas discharge tube has a phosphor layer formed and a discharge gas enclosed within an elongated tube which is to serve as the gas discharge tube. The gas discharge tube includes a light-emitting section and a cleaning section for cleaning the discharge gas. The cleaning section is connected to the light-emitting section.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: May 23, 2006
    Assignee: Fujitsu Limited
    Inventors: Akira Tokai, Hitoshi Yamada, Manabu Ishimoto, Tsutae Shinoda
  • Patent number: 7044625
    Abstract: A light-emitting apparatus able to dynamically produce lights of different wavelengths comprises a light source, a lamp holder surrounding the light source and having a notch, and a light-transmitting structure surrounding the lamp holder, wherein the light-transmitting structure can rotate around the lamp holder and includes a first section through which only a light in a first wavelength range is sent out, and a second section through which only a light in a second wavelength range is sent out. The first section and the second section can be rotated in turn to face the notch of the lamp holder, following the rotation of the light-transmitting structure.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: May 16, 2006
    Assignee: Au Optronics Corp
    Inventors: Che-Chih Chang, Chin-Kun Hsieh
  • Patent number: 7042168
    Abstract: A fluorescent-lamp driving apparatus and a compact self-ballasted fluorescent lamp, when a blowout occurs at the electrodes of the arc tube, swiftly and assuredly stop a glow discharge at the electrodes of the arc tube, therefore have heightened security. In the compact self-ballasted fluorescent lamp 1, a switching device (nMOS-FET56) is mounted to the lighting unit 50 so that the entire device main body of the switching device faces the choke coil 52, with the print substrate 51 therebetween. Thus structured lighting unit 50 forms a heat transmission path between the nMOS-FET56 and the choke coil 52, and the heat generated at the choke coil 52 will be swiftly and assuredly transmitted to the device main body of the nMOS-FET56.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: May 9, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroki Kitagawa, Hiroki Nakagawa
  • Patent number: 7036955
    Abstract: A strip lighting housing and fixture assembly (10) is provided. The strip lighting housing and fixture assembly (10) includes first and second housing sections (12 and 14) which releasably engage one another. Sections (12 and 14) are releasably locked to one another by a locking plate (30) and further by a removable connecting member (42). Additionally, a pair of cover members (38, 40) are provided, with the cover members (38, 40) being releasably joined to the respective first and second housing sections (12 and 14). The lighting housing and fixture assembly (10) is collapsible and may be selectively disassembled.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: May 2, 2006
    Assignee: American Power Products, Inc.
    Inventors: Ashfaq M. Kazi, Syed M. Afzal Hussain
  • Patent number: 7038752
    Abstract: An optical interference color display comprising a transparent substrate, an inner-front optical diffusion layer, a plurality of first electrodes, a patterned support layer, a plurality of optical films and a plurality of second electrodes is provided. The inner-front optical diffusion layer is on the transparent substrate and the first electrodes are on the inner-front optical diffusion layer. The patterned support layer is on the inner-front optical diffusion layer between the first electrodes. The optical film is on the first electrodes and the second electrodes are positioned over the respective first electrodes. The second electrodes are supported through the patterned support layer. Furthermore, there is an air gap between the second electrodes and their respective first electrodes.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: May 2, 2006
    Assignee: Prime View International Co, LTD
    Inventor: Wen-Jian Lin
  • Patent number: 7033059
    Abstract: A light guide apparatus for enhancing light source utilization efficiency includes a light guide sheet, a light coupling structure and a light emerging structure. The light coupling structure is arranged on a surface of the light guide sheet and opposite to a light source. The light emerging structure is disposed on a surface of light guide sheet. Lights emitted by the light source enters into the light guide sheet via the light coupling structure and evenly emitted to outer environment via said light emerging structure, thereby enhancing light source utilization efficiency.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: April 25, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Jauh-Jung Yang, Jian-Shian Lin, Po-Hung Yao, Jyh-Chun Chang
  • Patent number: 7018070
    Abstract: A flourescent lamp assembly including a reflector having a cutout, a flourescent lamp and a lampholder. The lampholder includes a base end positioned within the cutout, a socket receiving the flourescent lamp and a first plug-in connector of a first gender for receiving electrical power. The first plug-in connector is positioned at the base end and generally opposite from the socket. The first plug-in connector includes a line conductor and a neutral conductor.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: March 28, 2006
    Assignee: Dekko Technologies, Inc.
    Inventor: Phillip A. McCoy
  • Patent number: 7018074
    Abstract: A reflector mounting for fluorescent light fixtures in which a rectangular reflector sheet is formed and held in a trough shape by a series of bracket clips hooked to side edges thereof, the bracket clips having a hole receiving the light tube to thereby hold the reflector in the light fixture.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: March 28, 2006
    Inventors: Bruce R. Raby, Fredrick R. Raby, Sr.
  • Patent number: 7004605
    Abstract: An illumination device comprising, in combination an elongated housing, an elongated lamp or lamps extending in the housing, a magnetic ballast or ballasts carried in the housing to selectively energize the lamp or lamps, and switch means carried by the housing to control energization of said ballast or ballasts, the housing having a forward illumination portion, a rearward grip portion and an intermediate portion. A cushioning cover is receivable over two of said housing portions.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: February 28, 2006
    Assignee: National Electric Manufacturing Corporation
    Inventor: James M. Galvez
  • Patent number: 6994453
    Abstract: An illumination device is provided, which includes, in series, a fluorescing radiation source, a light selective filter, and a light source. The light selective filter is relatively transmissive of fluorescing radiation and relatively reflective of light. The light source is preferably a fluorescable phosphor. The illumination device further includes in series after the light source, a fluorescing radiation selective filter which is relatively transmissive of light and relatively reflective of fluorescing radiation. The illumination device may be one of several specific devices, such as a fluorescent lamp assembly, a flat panel display backlight assembly, or a white light-emitting diode assembly.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: February 7, 2006
    Inventor: Randall D. Blanchard
  • Patent number: 6984056
    Abstract: A lighting device according to an embodiment of the present invention includes a pair of sockets 22 made of a soft and elastic conductor and arranged facing each other, with which electric power is supplied to EEFL lamps 21. A plurality of lamp inserting holes 220 is provided along the longitudinal direction of the socket 22. External electrodes 214 at the both ends of EEFL lamps 21 are pressed into each of the lamp inserting holes. These sockets 22 are supported and coated by socket holders 23 made of an insulator having higher rigidity than the sockets 22 respectively.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: January 10, 2006
    Assignee: Harison Toshiba Lighting Corporation
    Inventors: Mamoru Amano, Shuho Yamasaki
  • Patent number: 6979101
    Abstract: A bent fluorescent lamp for backlighting a display providing uniform illumination. A fluorescent lamp is made from a tubular glass envelope having right angles formed therein. The right angles provide improved illumination of a plane surface for backlighting a liquid crystal display. The right angles eliminate dark regions in the illuminated surface. A right-angled bend is also formed at the ends of the fluorescent lamp. An electrode is positioned sufficiently far from a central portion of the lamp so that any dark spaces in the gas discharge of the fluorescent lamp, such as the Faraday dark space associated with a cathode of a lamp are not formed within the central portion. As a result, the central portion of the fluorescent lamp has a uniform brightness or intensity providing improved illumination for backlighting a liquid crystal display. The resulting more uniform illumination with less dark regions results in a more legible display and more accurate information being displayed.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: December 27, 2005
    Assignee: LCD Lighting, Inc.
    Inventors: Christian Sauska, Arpad Pirovic
  • Patent number: 6979102
    Abstract: A liquid crystal display device includes a liquid crystal display panel, a plurality of fluorescent lamps formed below the LCD panel extending along a first direction at first fixed intervals along a second direction perpendicular to the first direction, a case for supporting the plurality of fluorescent lamps, a plurality of wires attached to the case for absorbing and dissipating heat generated by the plurality of fluorescent lamps, and wire fixing plates for fixing the plurality of wires on the case.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: December 27, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Dong Jae You
  • Patent number: 6976763
    Abstract: A margin highlighter is fixed to a strip curtain-holding apparatus and positioned adjacent to one of the lateral or upper margins. The margin highlighter including a luminescent agent in sufficient concentration to provide a visible light emission in the event of lighting failure, the luminescent agent having a color in the range of about 500 to 650 nm.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: December 20, 2005
    Inventor: Edward S. Robbins, III
  • Patent number: 6976780
    Abstract: A light source device for preventing a light guide plate from being discolored due to a light supplied by a lamp is disclosed. At least one masking film that is made of a transition metal oxide is disposed in a pathway of the light that is emitted by the lamp and transmitted to a display unit to display images in order to cut off ultraviolet rays having particular wavelengths capable of discoloring the light guide plate. Accordingly, it is possible to prevent the light guide plate, which is made of polyolefin resin composition to make it lightweight, from discoloring in yellow.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: December 20, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ik-Soo Lee, Keun-Woo Lee, Meen-Woo Kwak, Jeong-Hwan Lee, Sang-Hyuck Youn
  • Patent number: 6974221
    Abstract: A backlight assembly for a liquid crystal display panel, including a lamp housing; a lamp; a diffuser plate; and a plurality of supports. The supports each has first and second members. The first member has a body and a groove formed in the body for holding the lamp and attaching the lamp to the lamp housing. A ring-shape member may be disposed about a section of the lamp for providing cushioning between the lamp and the first member. The second member has an elongated body for supporting the diffuser plate when it attempts to sag or distort.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: December 13, 2005
    Assignee: Au Optronics Corporation
    Inventors: Chih-Kang Wu, Ming-Fa Wang
  • Patent number: 6971766
    Abstract: An aperture lamp system that facilitates improved reliability and performance in a display system is provided. The aperture lamp system provides improved reliability by providing a second lamp coupled to a first lamp through a coupling aperture. When the first lamp fails, the second lamp can be used to provide illumination to the display. Specifically, light from the second lamp passes through the coupling aperture to the first lamp, where it can exit the first lamp and illuminate the display. Thus, by coupling the first and second lamps together through a coupling aperture, a lamp system is provided where either the first lamp or second lamp can be used to provide illumination for the display. Thus, the first and second lamps provide redundancy, with this redundancy used to improve the reliability of the display system.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: December 6, 2005
    Assignee: Honeywell International Inc.
    Inventors: Brian D. Cull, Elias S. Haim, Allan E. Harris, John F. Schmidt
  • Patent number: 6971763
    Abstract: The invention relates to an adapter (1) having an integrated ballast and starting arrangement for annular fluorescent lamps (2) having a pin base (3) for connecting them to conventional incandescent lamp sockets. The adapter (1) has a cuboidal housing and has at each end a holder which partially encloses the pin base (3) of the fluorescent lamp (2) or the discharge vessel (12) of the fluorescent lamp (2). The first holder in this case also contains a socket for accommodating and making electrical contact with the pin base (3) and the other holder contains a sliding apparatus for locking the lamp (2).
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: December 6, 2005
    Assignee: Patent-Treuhand-Gesellschaft fur Elektrisch Gluhlampen mbH
    Inventors: Lorenzo Baldo, Moreno Marton
  • Patent number: 6962425
    Abstract: A light fixture including a housing formed by a pan having parallel side walls terminating in mounting phalanges formed with O-ring rungs and further including retainer rails which engage the opposite side of a flexible lens to hold the lens against an O-ring in the O-ring runs to maintain a moisture resistant seal.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: November 8, 2005
    Assignee: Thin-Lite Corporation
    Inventor: Shin W. Rhee
  • Patent number: 6960003
    Abstract: A lighting apparatus includes a lighting tube 10, a socket 20 and an adapter casing 30. The lighting tube 10 has a lighting tube main body 11, a seating portion 12 provided at a basal end portion of the lighting tube main body, electrode terminals 14 provided at the seating portion, and a connecting portion cover 40 covering a connecting portion formed between the lighting tube main body and the seating portion in a hermetically sealed manner. The adaptor casing 30 and the connecting portion cover 40 are detachably connected in a state in which the socket 20 into which the seating portion 12 of the lighting tube 10 is inserted is accommodated in the socket accommodation space 31, whereby the socket 20 and the seating portion 12 of the lighting tube 10 are hermetically sealed by the adaptor casing 30 and the connecting portion cover 40.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: November 1, 2005
    Assignee: Kabushiki Kaisha Tominaga Jyushi Kogyosho
    Inventor: Yoji Takano
  • Patent number: 6960001
    Abstract: Dissipation of heat generated by a luminescent source, such as a fluorescent lamp, of a backlight apparatus and an LCD therewith is enhanced by providing a proximity section in a holder, making the hottest part the closest to the holder for efficient heat conduction.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 1, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Eiji Nitto, Koshu Yonemura, Hiroyoshi Takahashi, Seiji Hayashimoto, Hirofumi Miyamoto
  • Patent number: 6939020
    Abstract: A back light includes a first case having a plurality of first and second support members, the first support members at ends of the case and the second support member at a center portion of the case and a plurality of luminescent lamps having tubes supported by the first and second support members, having electrodes at both ends of the tubes. The luminescent lamps are arranged alternately at left and right sides of the second support member.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: September 6, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Moon Jong Lim
  • Patent number: 6932493
    Abstract: An adaptor (2) for fitting a fluorescent tube (80) to a fluorescent tube housing. The adaptor includes a body portion (6) for attachment to an end of the fluorescent tube (80), a pair of contact and arm assemblies and a lid portion (8). Each contact (10, 12) in the pair of assemblies is electrically connectable to a power source. Each arm (14, 16) in the pair of assemblies is adapted for electrical connection to a respective contact (76, 78) of the fluorescent tube (80) so as to provide power from the power source to a fluorescent tube (80).
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: August 23, 2005
    Inventors: Peter Giannopoulos, Brett Andrew McGinnes
  • Patent number: 6926424
    Abstract: A device for rapid installation of a lamp provides easy connection for a plurality of fluorescent tubes to a connecting box. Each of the fluorescent tubes is mounted into a base frame where a slide rod on a sliding track thereof secures the insertion of a fluorescent tube. As a fluorescent tube is inserted into the base frame, a slopped upper surface at the end thereof pushes the slide rod inward and upward. The slide rod, pushed by the fluorescent tube to the higher end of the sliding track, departs from a higher side of the slopped upper surface, slides back to the lower end of the sliding track, and thereby steadily holds the fluorescent tube. To unplug a fluorescent tube, the slide rod is pushed over the higher end of the sliding track so that the base frame and the fluorescent tube are unlocked.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: August 9, 2005
    Inventor: Wen-Chang Wu
  • Patent number: 6919974
    Abstract: The image reading device of the present invention reads images by using a visible light and an invisible light that are generated by a single light source. The fluorescent lamp is provided with a pair of internal electrodes and a pair of external electrodes. It generates a visible light with a higher intensity than an infrared light when switching a feeder circuit on to generate a discharge between the external electrodes. On the other hand, it generates an infrared light with a higher intensity than a visible light when switching another feeder circuit on to generate a discharge between the internal electrodes. Therefore, the fluorescent lamp has a reading mode using the visible light, and a reading mode using the infrared light. And, a lamp controller selectively switches the emission mode of the fluorescent lamp.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: July 19, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirokazu Ichikawa, Hidekazu Imai, Yoshiya Imoto, Michio Kikuchi
  • Patent number: 6916102
    Abstract: A direct backlight apparatus for a Liquid Crystal Display (LCD) panel includes a lamp housing and a lamp. The lamp housing accommodates a support structure disposed on the bottom of the lamp housing wherein an open end is defined by one side of the lamp housing. The lamp, supported by the support structure, is installed in the lamp housing and is further attached to a holding structure at one end of the lamp, for holding the lamp. The lamp is removed from the lamp housing through the open end by moving along a direction of the support structure when a force is exerted on the holding structure.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: July 12, 2005
    Assignee: Chi Mei Optoelectronics Corp.
    Inventor: Kuan-Li Lin
  • Patent number: 6914369
    Abstract: A quick temperature-raising structure of cold cathode fluorescent lamp comprises a cold cathode fluorescent lamp, a soft electric heating component, an insulating tube and two insulating components. The soft electric heating component adheres onto the surface of the cold cathode fluorescent lamp. The insulating tube is slipped onto the surface of the cold cathode fluorescent lamp. The two insulating components are slipped onto the joint portions at two sides of the cold cathode fluorescent lamp, the soft electric heating component and the insulating tube. Grooves are formed on the insulating components so that an external power source can provide the working power for the soft electric heating component and the cold cathode fluorescent lamp via conducting wires. The soft electric heating component can heat in advance to quickly raise the ambient temperature of the cold cathode fluorescent lamp when the cold cathode fluorescent lamp is driven.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: July 5, 2005
    Assignee: ADO Optronics Corporation
    Inventor: Shu Wei Liao