Plural Patents (Class 362/217.09)
  • Patent number: 9035549
    Abstract: A light emitting device package is disclosed. The light emitting device package includes a package body, at least one light emitting diode disposed on the package body, a molding layer surrounding the light emitting diode, and a phosphor layer provided on the package body, wherein the phosphor layer extends upward from surface of the package body.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: May 19, 2015
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Jun Hyoung Kim
  • Patent number: 8899778
    Abstract: The present invention provides an optical cavity structure of an LED lighting apparatus comprising a base, a light reflector, LED module, and a light cover. The light reflector can be integrally formed with the base or an independent unit. An optical cavity is constructed by the base, light reflector and light cover altogether, and the LED module is attached to the base received within the optical cavity. The light reflector can be symmetrical with inclined angle or as a conical shape provided on two sides opposing to the direction of light from the LED module. The inner surface of the light reflector is a light reflecting surface. The light cover is attached to the light reflector. As a result, the light from the LED is gathered and reflected by the light reflecting surface via the angle and shape of the light reflector to achieve an enhanced luminance range and illumination.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: December 2, 2014
    Inventors: Mei-Ling Yang, Chin-Chia Chang
  • Patent number: 8794786
    Abstract: The backlight unit 12 includes cold cathode tubes 18, a chassis 14, inverter boards 20, relay connectors 21, and covers 22. The chassis 14 houses the cold cathode tubes 18. The inverter boards 20 are arranged on a side of the chassis 14 opposite from the cold cathode tubes 18. The inverter boards 20 are configured to supply drive power to the cold cathode tubes 18. The relay connectors 21 are mounted to the chassis 14. The inverter boards 20 are connected to or disconnected from the relay connectors 21 in one direction along board surfaces thereof (the X-axis direction). The relay connectors 21 are configured to relay power from the inverter boards 20 to the cold cathode tubes 18. The covers 22 are arranged between the chassis 14 and the inverter boards 20. Each cover 22 includes a movable portion 22b attached to the chassis 14 so as to be movable along the connecting direction and the disconnecting direction of the inverter board 20 to the relay connectors 21 (the X-axis direction).
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: August 5, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shiyoshi Cho
  • Patent number: 8729498
    Abstract: High throughput UV curing systems for mass curing of a plurality of articles without compromising product quality. The systems comprise a plurality of UV banks, each bank comprising a plurality of fluorescent UV lamps, thereby creating a consistent blanket of UV energy. A plurality of coated articles are positioned between pairs of banks such that the UV exposure or dosage is evenly distributed for each article. The fluorescent UV lamps use proportionally lower energy per unit and generate less heat than standard UV lamps, while sufficiently curing the coating on each article. Throughput is increased compared to currently available systems because the systems are easier to maintain requiring less downtime, can cure significantly more articles per cycle, and reduce the number of rejected products.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: May 20, 2014
    Assignee: Harland Medical Systems, Inc.
    Inventors: Kevin A. Fleischhacker, Jonathan D. Anderson, Mark P. Toma
  • Patent number: 8684583
    Abstract: A backlight unit 12 includes a chassis 14, a plurality of cold cathode tubes 18, an optical member 16 and a plurality of support members 20. The chassis 14 has an opening on a light exit side. The cold cathode tubes 18 are light sources arranged in a parallel layout and housed in the chassis 14. The optical member 16 is arranged on the light exit side outer than the cold cathode tubes 18 so as to cover the opening of the chassis 14. The support members 20 are arranged in a parallel layout along a parallel arrangement direction of the cold cathode tubes 18. The support members 20 are formed such that support positions of the optical member 16 are relatively closer to the cold cathode tubes 18 around the center and relatively farther from the cold cathode tubes 18 near the edges. The cold cathode tubes 18 are arranged at relatively smaller intervals around the center and at relatively larger intervals near the edges.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: April 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masashi Yokota
  • Patent number: 8608337
    Abstract: A lighting fixture having a louvered light shield is provided. The louvered light shield has at least one light emitting section with a plurality of alternating ridges and troughs. A plurality of sidewalls connect the ridges and troughs. A plurality of the ridges have a light exit opening therethrough. The light exit opening enables light from a light source of the lighting fixture to exit the lighting fixture.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 17, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Feridoun Nourishad, Jose Adame
  • Publication number: 20130194790
    Abstract: There is provided a light emitting module including: a printed circuit board; a plurality of light emitting diode chips disposed at a distance from one another on a conductive pattern formed on a top of the printed circuit board; and a connector formed on a bottom of the printed circuit board and electrically connected to the plurality of light emitting diode chips. The light emitting diode chips and the connector are optimally arranged to ensure that the light emitting module is suitably utilized as a high-density linear light source including a great number of light emitting diode chips and emits light outward with minimum loss.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 1, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: SAMSUNG ELECTRONICS CO., LTD.
  • Patent number: 8425069
    Abstract: A lighting device 12 of the present invention includes a plurality of light sources 17 and an optical member arranged closer to the light-exiting portion 15z than the light sources 17. The optical member 15 includes a prism diffuser plate 15a for diffusing light emitted from the light sources 17 and exiting from a lens sheet 15c arranged closer to the light-exiting portion 15z than the prism diffuser plate 15a. The prism diffuser plate 15a has prisms on a surface located on a side closer to the light-exiting portion 15z. The lens sheet 15c has convex lenses 62 on a surface closer to the light-exiting portion 15z.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: April 23, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shuki Yamamoto, Yasumori Kuromizu, Kaori Yamamoto, Takahiro Yoshikawa
  • Patent number: 8403522
    Abstract: An exemplary LED lamp includes a heat dissipation module, a light source mounted on the heat dissipation module, a cover engaging the heat dissipation module and covering the light source, a reflective layer mounted on the cover, and two connectors secured at two corresponding ends of the cover and the heat dissipation module. The cover has an inner surface and a convex outer surface. The inner surface includes a first concave surface and two second concave surfaces at lateral sides of the first concave surface. The second concave surfaces face the LEDs and configured as light incident surfaces; light emitted by the LEDs incidents onto the second concave surfaces and travels through the cover to an outside for lightening. A part of the light is reflected by the reflective layer before travelling to the outside.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: March 26, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Jen-Tsorng Chang
  • Publication number: 20120320576
    Abstract: An end mounted ballast lighting fixture includes a reflector. The reflector is generally rectangular shaped. A ballast is mounted to the reflector and the ballast has a ballast housing has a pair of sections, namely a top ballast housing section and a lower ballast housing section. The lower ballast housing section is mounted to a side wall of the reflector. A pair of ballast sockets, namely a first ballast top face socket and a second ballast top face socket are mounted on a top face of the top ballast housing section. A pair of florescent light bulbs, namely a first florescent light bulb and a second florescent light bulb are mounted in the reflector. The top face faces toward the pair of florescent light bulbs.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 20, 2012
    Inventors: Brian Wald, Kevin Yang
  • Publication number: 20120320571
    Abstract: An optical semiconductor-based tube type lighting apparatus capable of enlarging light distribution to have improved assembly characteristics. The lighting apparatus includes an elongated light-transmitting tube, and a plurality of optical semiconductor modules arranged along a circumference of the light-transmitting tube and separated from each other in a cross-sectional view of the light-transmitting tube. Each of the optical semiconductor modules is placed on a point, which is not on a central axis line of light emitted from other optical semiconductor modules, so as not to face another optical semiconductor module at an opposite side thereof.
    Type: Application
    Filed: August 21, 2012
    Publication date: December 20, 2012
    Applicant: POSCO LED COMPANY LTD.
    Inventors: Kyung Rye KIM, Jae Young CHOI, Kyoung Onn KIM
  • Patent number: 8303128
    Abstract: A cold cathode tube 15 includes an elongated glass tube 18, which has a primary-seal-side end portion 31 as one end portion thereof and a secondary-seal-side end portion 33 as the other end portion thereof. An electrode 19 is enclosed in each end portion 31, 33 of the glass tube 18. A ferrule 20 is attached to the outer side of each end portion 31, 33, and is connected to the corresponding electrode 19. The ferrule 20A-1 attached to the primary-seal-side end portion 31 and the ferrule 20B-1 attached to the secondary-seal-side end portion 33 differ in color of the entire surface from each other. A plurality of cold cathode tubes are arranged and mounted in a chassis 12, so that adjacent cold cathode tubes 15 lie in the opposite orientation to each other.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: November 6, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshiki Takata
  • Patent number: 8297772
    Abstract: A backlight assembly includes a plurality of lamps, a multi-plate diffusion member, optical sheets and a receiving container. The lamps have a rod shape extended in a first direction, and are arranged along a second direction that is substantially perpendicular to the first direction. The diffusion member is disposed above the lamps and has at least two optical plates. Each of the optical plates includes a plurality of optical patterns on a surface facing away from the lamps. The optical patterns are extended in the first direction and aligned along the second direction. The optical sheets are disposed above the diffusion member to improve optical characteristics of passed through light. The receiving container includes a reflective bottom plate and a sidewall formed on an edge of the bottom plate to receive the lamps, the diffusion member and the optical sheets.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 30, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-Hwa Ha, Jung-Wook Paek, Nyung-Woon Lee
  • Patent number: 8292456
    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: Grant
    Filed: November 14, 2011
    Date of Patent: October 23, 2012
    Inventor: Qin Kong
  • Patent number: 8246196
    Abstract: In an embodiment, a recessed light fixture includes a structural reflector and two end caps that form a light fixture housing. A first, second and third optics areas are provided. At least one first light source type is mounted near the first optics area. A second light source type is mounted near the second optics area and the second light source type is mounted near the third optics areas, the second light source type having a light output level substantially lower than the light output level of the first light source type. A diffuser is configured to sealably mount to the light fixture housing so as to substantially seal an interior portion of the light fixture. In operation, the light fixture can be switch between an ambient mode and an examination mode while providing a cost effective and attractive design.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: August 21, 2012
    Assignee: Focal Point, L.L.C.
    Inventors: Casey Chung, Jill Cody, Brandon Stolte, Marcelino Pena, Michael Thornton
  • Patent number: 8240876
    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: Grant
    Filed: May 5, 2009
    Date of Patent: August 14, 2012
    Inventor: Qin Kong
  • Patent number: 8220954
    Abstract: In a discharge tube, a conductive ferrule is provided on an end portion of a glass tube. The ferrule includes a body that is to be mounted to the outer circumference of the glass tube and has a contact portion to be electrically conductively fixed to a relay connector (or a bearing device). Further included is a conductive portion that extends from the body so as to have elastic contact with an outer lead. The outer lead will not be under load due to the weight of the discharge tube, but the conductive portion solely has elastic contact therewith. Thus, stress concentration on the outer lead can be prevented.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: July 17, 2012
    Assignees: Sharp Kabushiki Kaisha, Japan Aviation Electronics Industry, Limited
    Inventors: Yoshiki Takata, Kenichi Iwamoto, Takaaki Kudo
  • Patent number: 8201978
    Abstract: A luminaire having a box-like luminaire housing for receiving at least one elongate light source and at least one reflector surface arranged—seen from the region to be illuminated—neighboring the light source, the luminaire housing forms a light exit opening which is closed by a light exit element. The light exit element has in a first emission region, located in substance in front of the light source, a first light emission characteristic, and has in a second emission region, separate from the first emission region, a second light emission characteristic different with respect to the first light emission characteristic.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: June 19, 2012
    Assignee: Zumtobel Lighting GmbH
    Inventors: Gerald Ladstätter, Patrik Gassner, Manfred Petschulat
  • Patent number: 8192045
    Abstract: A hinge retaining mechanism for a fluorescent lighting system. A portable fluorescent lighting system which utilizes an extremely lightweight corrugated plastic panel made into 5 subpanels. At each end of the panel a U shaped channel is attached that forms the center panel and the opposing adjacent two panels into a trough or recessed pan. On each of the two remaining panels is attached another U shaped channel. Each of the U shaped channels includes a mechanism for supporting a high-tension mechanical hinge. The mechanical hinge is designed to float freely within the adjacent channel brackets. One part of the hinge is mechanically retained to the channel to prevent inadvertent removal of the hinge.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: June 5, 2012
    Assignee: Kino Flo, Inc.
    Inventors: Alejandro Vazquez, Frieder Hochheim
  • Patent number: 8192059
    Abstract: Indexes indicative of the locations of lamp clips are formed on a chassis where lamps are juxtaposed with different juxtaposition pitches. The lamp clips comprise: plate-like bases; holding portions, which are provided at one face of the bases, for holding the lamps; and markers corresponding to the indexes.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: June 5, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masashi Yokota, Tsutomu Tsuji, Takaharu Kikuchi, Masaki Okazaki, Hirotomo Onozaki, Kouichi Fujiwara
  • Patent number: 8189241
    Abstract: An image reading apparatus for reading an original document including: a light source including a sheet-shaped light-emitting section which includes an electroluminescence element, the light emitting section being configured to have a folded plane folded inward or a concave curved surface, and a light emitting surface being arranged inside the folded plane or the concave curved surface; and a reading element which receives light from the original document to read images while the light source illuminates a reading position of the original document along a main-scanning direction of the original document.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: May 29, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Hiroyuki Yamamoto
  • Patent number: 8167451
    Abstract: A fluorescent tube is prevented from being wrongly attached and broken when being attached, and luminance nonuniformity of backlight due to luminance difference generated in the tube axis direction of the fluorescent tube is reduced. In a backlight device (2), a plurality of fluorescent tube sets, each of which is composed of four fluorescent tubes (21) having electrodes (211) at the both ends and a pair of lamp holders (5) storing portions close to the both electrodes at the both ends of the four fluorescent tubes (21), and the fluorescent tube sets are driven by a pair of inverter circuit board.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: May 1, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masaki Shimizu
  • Patent number: 8118446
    Abstract: Discharge tubes, each of which includes a glass tube and a ferrule that has a substantially cylindrical shape and is fitted to each end portion of the glass tube, are supported by a plurality of pairs of relay connectors (or supporting members) provided on the front side of a chassis having substantially a plate-shaped configuration. When a discharge tube is supported by relay connectors, stoppers provided on the relay connectors lock the ferrules so that axial movement of the discharge tube relative to the relay connectors is restricted.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: February 21, 2012
    Assignees: Sharp Kabushiki Kaisha, Japan Aviation Electronics Industry, Limited
    Inventors: Yoshiki Takata, Kenichi Iwamoto, Takaaki Kudo, Naofumi Ikenaga
  • Patent number: 8104918
    Abstract: An exemplary backlight module (20) includes a plurality of linear lamps (21) and a pair of first holders (23). Each linear lamp includes a main body (212) and two electrodes (214) extending respectively from two opposite ends of the main body. Each first holder includes a plurality of cage portions (231), and each cage portion includes at least two parts elastically holding the main body and the electrode at one of the ends of a corresponding one of the linear lamps, at least one of said at least two parts electrically connecting the electrode with the first holder. A liquid crystal display (2) employing the backlight module is also provided.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: January 31, 2012
    Assignee: Chimei Innolux Corporation
    Inventor: Chih-Chung Hsiao
  • Patent number: 8104946
    Abstract: A backlight assembly, in which several parts are unified so as to reduce a number of parts used and simplify an assembly process includes lamps emitting light, first lamp sockets, each of which includes a first connection member coupled with one end of each of the lamps so as to be electrically connected to the end of each of the lamps, and a reflection plate to reflect the light emitted from the lamps, and including socket fixing units formed integrally therewith to respectively fix the first lamp sockets. Each of the socket fixing units includes a socket fixing groove formed on a bottom plane of the reflection plate.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: January 31, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Seok An, Jong Cheol Lee, Dae Hyoun Byoun, Tae Jun You
  • Publication number: 20110285923
    Abstract: A backlight unit 12 includes a chassis 14, a plurality of cold cathode tubes 18, an optical member 16 and a plurality of support members 20. The chassis 14 has an opening on a light exit side. The cold cathode tubes 18 are light sources arranged in a parallel layout and housed in the chassis 14. The optical member 16 is arranged on the light exit side outer than the cold cathode tubes 18 so as to cover the opening of the chassis 14. The support members 20 are arranged in a parallel layout along a parallel arrangement direction of the cold cathode tubes 18. The support members 20 are formed such that support positions of the optical member 16 are relatively closer to the cold cathode tubes 18 around the center and relatively farter from the cold cathode tubes 18 near the edges. The cold cathode tubes 18 are arranged at relatively smaller intervals around the center and at relatively larger intervals near the edges.
    Type: Application
    Filed: November 17, 2009
    Publication date: November 24, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Masashi Yokota
  • 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
  • Publication number: 20110235317
    Abstract: A lighting device with a throw forward reflector includes a body, at least one light source coupled to the body, and a reflector with an asymmetric cross sectional geometry coupled to the body and at least partially about the light source to project light from the light source at an angle that is non-perpendicular to a plane of the body. A throw forward reflector includes an elongated reflector body formed from a sheet of material and has an asymmetric cross sectional profile, the profile comprising a compound radius having a first curved segment defined by a first radius and a second curved segment defined by a second radius that is greater than the first radius, and a crease extending at least partially along the length of the reflector body and defining an interface between the first curved segment and the second curved segment.
    Type: Application
    Filed: March 26, 2010
    Publication date: September 29, 2011
    Inventors: Neal R. Verfuerth, Kenneth J. Wetenkamp
  • Patent number: 7980724
    Abstract: A lamp guide frame includes a frame body, a plurality of openings and a plurality of lamp socket receiving portions. The frame body guides end portions of a plurality of lamps. The openings extend in a width direction of the frame body. The openings are arranged in a longitudinal direction of the frame body. Each of the lamp socket receiving portions protrudes from a lower face of the frame body partially around an associated opening to form a receiving space receiving a lamp socket inserted into the opening. The lamp socket receiving portions are open in the width direction of the frame body. The frame body and the plurality of lamps socket receiving portions collectively define a single and continuous member. The associated opening and the receiving space of the lamp socket collectively define a continuous opening.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Won Chung, Hyun-Su Park
  • Patent number: 7963662
    Abstract: In an embodiment, a recessed light fixture includes a structural reflector and two end caps that form a light fixture housing. A first, second and third optics areas are provided. At least one first light source type is mounted near the first optics area. A second light source type is mounted near the second optics area and the second light source type is mounted near the third optics areas, the second light source type having a light output level substantially lower than the light output level of the first light source type. A diffuser is configured to sealably mount to the light fixture housing so as to substantially seal an interior portion of the light fixture. In operation, the light fixture can be switch between an ambient mode and an examination mode while providing a cost effective and attractive design.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: June 21, 2011
    Assignee: Focal Point, L.L.C.
    Inventors: Casey Chung, Jill Cody, Brandon Stolte, Marcelino Pena, Michael Thornton
  • 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: 7905625
    Abstract: A fluorescent lamp includes a fluorescent tube, a thermal electron, a first cover electrode and a second cover electrode. The fluorescent tube has a discharge space. The thermal electron emitting part is disposed in the discharge space. The first cover electrode is disposed at an end portion of the fluorescent tube, and is electrically connected to a first end portion of the thermal electron emitting part. The second cover electrode is spaced apart from the first cover electrode disposed at the end portion of the fluorescent tube, and is electrically connected to a second end portion of the thermal electron emitting part. The thermal electron emitting part is electrically connected to the first cover electrode and the second cover electrode.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: March 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jin Kim, Seok-Hyun Nam, Sang-Hyuck Yoon
  • 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: 7832885
    Abstract: The present invention provides a patterned wavelength converting structure comprising a frame, a light source, a substrate, a film, a wavelength converting layer and a pattern disposed on the film. The pattern and the wavelength converting layer can be one piece. The configuration, for example, the distribution of diffusion particles, the location, the shape or the thickness, of the pattern is configured to reduce the mura or affect the desired uniformity of a lighting area.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: November 16, 2010
    Assignee: Kismart Corporation
    Inventors: Chun-Chung Hsiao, Hsin-Tao Huang
  • Patent number: 7817223
    Abstract: The present invention provides a display device of high brightness which can eliminate brightness irregularities on a display surface while preventing the degradation of display quality attributed to an undesired electric field generated at the time of performing inverter driving of the cold cathode fluorescent lamps of a backlight. In a liquid crystal display device, a plurality of cold cathode fluorescent lamps of a backlight unit is arranged along a short axis of the display device. The cold cathode fluorescent lamp has a high-voltage electrode thereof connected to an inverter circuit and a ground electrode thereof connected to a ground. Further, the plurality of cold cathode fluorescent lamps arranged along the short axis have electrodes thereof arranged alternately between the high-voltage electrode and the ground electrode.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: October 19, 2010
    Assignees: Hitachi Displays, Ltd., Hitachi Display Devices, Ltd.
    Inventors: Sakae Watanabe, Hiroshi Kurihara, Seiichi Nishiyama
  • Patent number: 7810943
    Abstract: The present invention relates to a lamp support capable of stably and firmly mounting a lamp, and a backlight assembly and a liquid crystal display including the lamp support unit. The lamp support unit includes a socket housing, a socket terminal disposed in the socket housing gripping a lead of a lamp and a supporting member installed to the socket housing and supporting a lamp tube of the lamp.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: October 12, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Rok Ko, Jae Hwan Chun, John Seung Han, Young Jae Lee, Hyun Su Park, Joo Young Kim
  • Patent number: 7802893
    Abstract: In one embodiment, a backlight assembly comprises: a bulb having a bulb first side and a bulb second side located on a side of the bulb opposite the first side, a reflector plate disposed on the bulb first side, and a front bulb reflector disposed over the bulb second side. The front bulb reflector has a partially reflective member capable of reflecting greater than or equal to 60% of light from the bulb toward the reflector plate, and an inner surface on a reflector second side located opposite the reflector first side. The overall geometry of the front bulb reflector is concave on the reflector second side and convex on the reflector first side.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: September 28, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: John Frederick Graf, Dennis Joseph Coyle
  • Patent number: 7784966
    Abstract: A light fixture includes a raceway, a lampholder, and a power pack. The raceway includes an aperture and a locking aperture. The lampholder is electrically connected to a lampholder connector. The power pack includes a power pack cover and a ballast. The power pack cover includes a latching end. The ballast includes a power input connector adapted to electrically connect to a power cord and a ballast output connector adapted to electrically connect to the lampholder connector. The latching end includes a flange adapted to mate with the aperture of the raceway and a locking protrusion adapted to mate with the locking aperture of the raceway such that the power pack is detachably mountable to the raceway.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: August 31, 2010
    Assignee: Orion Energy Systems, Inc.
    Inventors: Neal R. Verfuerth, Anthony J. Bartol, Kenneth J. Wetenkamp, Troy M. Johnson
  • Patent number: 7780310
    Abstract: A light fixture includes a raceway, a lampholder, and a power pack. The raceway includes an aperture and a locking aperture. The lampholder is electrically connected to a lampholder connector. The power pack includes a power pack cover and a ballast and a deployable sensor. The deployable sensor includes a sensor head, a conduit and pivotable coupling that permits movement of the sensor between a deployed position and a stowed position. The power pack cover includes a latching end. The ballast includes a power input connector adapted to electrically connect to a power cord and a ballast output connector adapted to electrically connect to the lampholder connector. The latching end includes a flange adapted to mate with the aperture of the raceway and a locking protrusion adapted to mate with the locking aperture of the raceway such that the power pack is detachably mountable to the raceway.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: August 24, 2010
    Assignee: Orion Energy Systems, Inc.
    Inventors: Neal R. Verfuerth, Kenneth J. Wetenkamp, Ronald E. Ernst, Troy M. Johnson, Donald C. Heimerman
  • Patent number: 7740372
    Abstract: A backlight unit includes a plurality a plurality of lamps, each having a first electrode and a second electrode. An alternating current (AC) signal having a high voltage is intermittently applied to the first electrode and the second electrode is connected to a ground. The backlight unit also includes: a pair of lamp guides comprising a first lamp guide and a second lamp guide, wherein the first lamp guide supports the lamps and is disposed to cross the lamps near the first electrodes, and the second lamp guide is disposed to cross the lamps near the second electrodes; a bottom cover for accommodating the lamps and the lamp guide pair; and a plurality of shock-absorbing holes formed in a bottom surface of the bottom cover near the first electrodes, a length of each shock-absorbing hole extending parallel to a corresponding one of the lamps.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 22, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Jeongwoo Sohn
  • 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: 7677757
    Abstract: A lamp holder includes a mounting portion, a lamp holding part which is connected to the mounting portion, and includes an end capable of surrounding a peripheral surface of a lamp, and is capable of being elastically opened and deformed with attaching and detaching of the lamp. The present invention also includes a recessed portion positioned at an opposed surface to the lamp in the lamp holding part and in a position between an end portion and a connecting region to a mounting portion, such that the recessed portion allows the lamp holding part to bend so that the end portion displaces in a direction to be away from the peripheral surface of the lamp.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: March 16, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiki Takata, Tatsuya Kudari
  • Patent number: 7674004
    Abstract: Cold cathode fluorescent tubes of the first group are aligned widthwise in one side of an enclosure which is divided into two areas at a centerline running widthwise. Cold cathode fluorescent tubes of the second group are aligned widthwise in the other side of the enclosure. All of the cold cathode fluorescent tubes are symmetrically-placed with respect to the centerline running widthwise. The cold cathode fluorescent tubes positioned outside widthwise are inclined at ?2 so that the distance between each of the tubes and the aperture plane gradually decreases lengthwise from an edge toward the center of the enclosure. The cold cathode fluorescent tubes positioned inside widthwise are inclined at ?1 so that the distance between each of the tubes and the aperture plane gradually decreases lengthwise from an edge toward the center of the enclosure. The inclined angle ?1 is made greater than the inclined angle ?2.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: March 9, 2010
    Assignee: Funai Electric Co., Ltd.
    Inventor: Masaharu Oka
  • Patent number: 7674007
    Abstract: A backlight assembly includes a receiving container, lamps, a diffusion plate and a lamp-fixing member. The receiving container includes a bottom plate and sidewalls together providing a receiving space. The lamps are arranged substantially parallel to each other on the bottom plate. The diffusion plate is disposed over the lamps. The lamp-fixing member includes a body portion extending substantially perpendicular to the lamps, a buffer protruding upwardly from the body portion, a diffusion plate supporting portion protruding from the buffer to support the diffusion plate and a lamp-fixing portion formed at the body portion to fix the lamps. Therefore, the buffer having elasticity is formed at an area at which the diffusion plate supporting portion is formed, so that rubbing between the diffusion plate and the diffusion plate supporting portion may be reduced.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 9, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Sun Han, Jae-Hwan Chun, Jong-Ho Won, Hyun-Chul Jeong, Won-Ju Kim, Young-Nam Kim
  • Patent number: 7674005
    Abstract: In an embodiment, a recessed light fixture includes a structural reflector and two end caps that form a light fixture housing. A first, second and third optics areas are provided. At least one first light source type is mounted near the first optics area. A second light source type is mounted near the second optics area and the second light source type is mounted near the third optics areas, the second light source type having a light output level substantially lower than the light output level of the first light source type. A diffuser is configured to sealably mount to the light fixture housing so as to substantially seal an interior portion of the light fixture. In operation, the light fixture can be switch between an ambient mode and an examination mode while providing a cost effective and attractive design.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: March 9, 2010
    Assignee: Focal Point, LLC
    Inventors: Casey Chung, Jill Cody, Brandon Stolte, Marcelino Pena, Michael Thornton
  • Patent number: 7670025
    Abstract: A backlight module comprising a back bezel, at least one light emitting device, a first circuit board, and a second circuit board is provided. The light emitting device, which has an electrode, is disposed on the side of the back bezel, while the first circuit board is disposed on the edge of the back bezel. An elastic clip is used to electrically connect the first circuit board directly with the electrode of the light emitting device, while the second circuit board is electrically connected to the first circuit board.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: March 2, 2010
    Assignee: AU Optronics Corp.
    Inventors: Kuo-Chih Lee, Sheng-Chieh Chen, Chia-Hung Sun, Huang-Ti Lin
  • Patent number: 7600895
    Abstract: A light display unit includes a display fixture and a light strand. The display fixture includes an elongated support and a plurality of receptacles coupled to the support. The support defines a chamber. Each of the receptacles defines an aperture. The light strand includes an electrical cord having an end configured to be coupled with an electrical power source. Each of a plurality of bulb groupings is in electrical communication with the electrical cord. The plurality of bulb groupings comprises at least two different combinations of light bulbs. The electrical cord is at least partially housed in the chamber of the support and extends into each of the plurality of receptacle of the display fixture through the apertures of the receptacles such that each of the plurality of bulb groupings is positioned within one of the plurality of receptacles of the support. Light strands, fixtures, and methods provide additional advantages.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: October 13, 2009
    Assignee: Target Brands, Inc.
    Inventors: Laura L. Hawkins, Donna L. Lein
  • Patent number: 7575342
    Abstract: A backlight module including a light box and a plurality of lamps in the light box is provided. The light box includes a bottom plate and an opening above the bottom plate. The lamp is disposed at an angle to the bottom plate of the light box. A liquid crystal display including the above backlight module and a liquid crystal panel is further provided. The backlight module provides the plane light source for display.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: August 18, 2009
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Yi-Wen Lin, Chih-Chie Chen, Ea-Si Lee
  • Patent number: 7556397
    Abstract: A lamp assembly for a controlled environment chamber comprises a frame, a plurality of fluorescent lamps supported on the frame and spaced apart from one another and a plurality of sleeves. Each sleeve is disposed about a respective fluorescent lamp at a distance therefrom to form a space between said sleeve and said respective fluorescent lamp, said sleeve being sealed about said respective fluorescent lamp to prevent air from outside said sleeve from reaching said respective fluorescent lamp. The sleeves are spaced apart to allow airflow therebetween. With the space between each sleeve and the respective lamp being fluidly isolated from air surrounding the sleeve, the light intensity output of the lamp is not as susceptible to reduction under temperature fluctuation in the chamber interior outside the sleeves, while said air remains free to flow between the lamps from one side of the lamp assembly to the other.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: July 7, 2009
    Assignee: Biochambers Incorporated
    Inventors: Bruce Kettner, Roger Peters