Louvered Or Grid-type Modifier Patents (Class 362/217.03)
  • Patent number: 8632206
    Abstract: A light fixture is configured to provide indirect lighting from a light source through use of a light shield. The light shield blocks a percentage of the light emitted from the light source at a center of the light shield. The light shield decreasing blocks light emitted from the light source along a path between the center and an outer edge of the light shield.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: January 21, 2014
    Assignee: Focal Point, L.L.C.
    Inventor: Casey Chung
  • Patent number: 8622573
    Abstract: The present invention provides LED array systems with which provides for a LED array luminair with reduced color fringing, light spill reduction and beam angle control and LED protection.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: January 7, 2014
    Assignee: ROBE Lighting s.r.o.
    Inventors: Frantisek Kubis, Pavel Jurik
  • 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
  • Patent number: 8251532
    Abstract: A back light module and a flat display device using the same are provided. The back light module includes a reflector, at least two light sources and at least one partition. The light sources are disposed above the reflector. The partition is disposed at a substantially central location between the two light sources and is substantially perpendicular to a line connecting the two light sources. The partition is a plate having a uniform thickness, and surfaces of the partition that face the two light sources are reflective.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: August 28, 2012
    Assignee: Chimei Innolux Corporation
    Inventors: Yuan-Hsu Liao, Wei-Sen Chen
  • Patent number: 8201956
    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: Grant
    Filed: April 29, 2010
    Date of Patent: June 19, 2012
    Assignee: 3M Innovative Properties Company
    Inventor: Kuo-Tai Yeh
  • Patent number: 8109647
    Abstract: A lighting device includes a first lighting module, a second lighting module, a case coupled to the first and second lighting modules, and a power circuit between the first and second lighting modules. Each of the first and second lighting modules includes a plurality of light emitting diodes (LEDs), and bottom surfaces of the first and second lighting modules and the power circuit are aligned on substantially a same plane.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: February 7, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Kim Dong Soo, Kim Yun Ha
  • Patent number: 8092040
    Abstract: The multi-directional lighting fixture includes a lighting fixture having a substantially elongated opaque housing with first and second ends with an open top for emitting light in an upward direction and a longitudinal slot along the bottom surface of the housing extending between the first and second ends. The longitudinal slot includes a shielding material, such as a louver or cover, with a predetermined degree of light translucence. The housing has a substantially elliptical cross section tapering towards one end of the housing. The ends of the housing have elliptical translucent members that can transmit lighting horizontally and radially outward from the interior of the housing. Two or more housings can be coupled together in series.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 10, 2012
    Assignee: Hubbell Incorporated
    Inventors: Arthur Y. Wu, James A. Doerr, Michael D. Garten, David Rector, Virginia L. Broadbooks, Dawn R. Kack
  • Patent number: 8057064
    Abstract: A lighting fixture for improving the luminance of a lamp tube includes a curved reflecting plate and a lampshade. The lampshade has partition plates with arc surfaces, side plates with inclined planes and end plates with curved surfaces. The lamp tube is disposed at a longitudinal axis of the curved reflecting plate. The reflecting plate reflects the light emitted from the lamp tube and the light reflected from the partition plates to the environment. The side plates are inclined with a certain angle for guiding light, and the end plates with curved surfaces are used to enhance the reflecting light. Thus, light output efficiency is improved and glare is reduced.
    Type: Grant
    Filed: October 11, 2009
    Date of Patent: November 15, 2011
    Assignee: Fuyu Electric Co., Ltd.
    Inventors: Kuo-Kuang Yeh, Tsung-Ming Chen
  • Patent number: 8042968
    Abstract: A reflector assembly for a lighting apparatus, the reflector assembly comprising two or more reflector modules configured for associating with one or more light sources, each reflector module comprising one or more reflectors for being located adjacent to a light source when the reflector module is associated with the one or more light sources, the one or more reflectors configured to reflect light from the adjacent light source. The reflector modules may further comprising a cover plate defining a plurality of light source apertures for allowing a light source to protrude through the cover plate, at least a first of the one or more light source apertures disposed adjacent to an overhead reflector and at least a second of the one or more light source apertures disposed adjacent to a lateral reflector.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: October 25, 2011
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, James G. Vanden Eynden, Larry A. Akers
  • Patent number: 7980723
    Abstract: The elongate luminaire for creating colored illumination has a plane of symmetry S in which lamp holders (6,7) are present to accommodate lamps of different colors. A first and a second opposite concave reflector (1,2) have elongate flat facets (11,12,13,14; 21,22,23,24). A third reflector (5) bridging the first and the second reflector (1,2) is present opposite a light-emission window (4). The luminaire is capable of providing evenly colored illumination without the need for a diffuser.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: July 19, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Paulus G. H. Kosters
  • Patent number: 7905636
    Abstract: The luminaire and the lamellae louver (20) have lamellae (10) which enclose an acute angle ? with a main plane S. The lamellae (10) may have a kink (13) in plane S, and additional kinks (14) laterally of the plane S. The lamellae (10) prevent glare in plane S and in surrounding planes and thereby allow the luminaire to meet the Unified Glare Rating.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: March 15, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Paulus Gerardus Henricus Kosters
  • Patent number: 7837347
    Abstract: The present invention provides a luminaire comprising a lamp housing having an upper surface and at least one opposed pair of lamp holders extending downwardly from opposing ends of said housing. The housing includes a plurality of apertures in the upper surface thereof to permit transmission of light therethrough and a reversible reflector capable of being secured to said housing in a plurality of positions having a plurality of apertures therein wherein in a first position the apertures in said reflector are aligned with the apertures in said housing to permit light transmission therethrough and wherein in a second position the apertures in said housing are covered by said reflector to prohibit light transmission therethrough.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: November 23, 2010
    Assignee: Genlyte Thomas Group LLC
    Inventors: Christopher P. Warner, William Thomas Busch, Charles Adrian Phillips, Sr.
  • Patent number: 7828468
    Abstract: A louver assembly is disclosed for use in an overhead lighting system. The louver assembly comprises a series of thin, lightweight stringers and blade ribs arranged perpendicular to one another such that the respective side surfaces of the respective stringers are positioned at an acute angle with respect to a ceiling plane and the reflective faces of the blade ribs are positioned substantially transverse with respect to the ceiling plane.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 9, 2010
    Assignee: Acuity Brands, Inc.
    Inventors: John Thomas Mayfield, III, Stephen Haight Lydecker, Charles T. Faircloth, II
  • Patent number: 7648252
    Abstract: A lighting fixture for use in an environment which requires protection from EMI/RFI emissions. The fixture comprises a body forming a light-emitting opening, lighting components including at least one lamp in the body, a lens covering the opening, and a conductive grid across the opening, the grid being separate from the lens, electrically connected to the body, and positioned between the lighting components and the opening.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: January 19, 2010
    Assignee: Kenall Mfg. Co.
    Inventors: James Hawkins, Glenn Gorsiski
  • Publication number: 20090207603
    Abstract: Retrofit systems for replacing the outdated components of an existing light fixture. The retrofit systems may utilize the previously installed housing of the existing light fixture. The retrofit systems include brackets that are positioned on the ends of the housing. The positioning of the brackets is based off of the ceiling, t-grid, or the bottom of the housing. Lamp sockets with associated lamps, an optional ballast tray with associated ballast, reflector(s), lamps, and a shielding mechanism are all mounted on, and their position in the housing dictated by, the mounting brackets. Thus, regardless of the depth of the housing, the lamps are positioned a uniform distance from the ceiling opening to create consistent light distribution. Moreover, because these components are not directly attached to the housing, their dimensions need not precisely match those of the housing. Rather, the retrofit system can be installed in housings of varying sizes and shapes.
    Type: Application
    Filed: April 1, 2009
    Publication date: August 20, 2009
    Inventors: Stephen Haight Lydecker, John T. Mayfield, III, Mark E. Nicholson, Russell Vern Rouse, Peter M. Schmidt, Stephan Barry McCane