Including Straight Surface Patents (Class 362/349)
  • Patent number: 10859238
    Abstract: The present disclosure provides a reflector and a light source module. The reflector is provided with a first end surface and a second end surface opposite to each other; an inner surface of the reflector has a plurality of microstructures, an outer surface of at least one of the plurality of microstructures includes a first surface and a second surface, the second surface is a curved surface, the first surface has a starting edge and an ending edge opposite to the starting edge, the ending edge is connected with the second surface, at least one of the plurality of microstructures is located on a same side of a vertical plane that intersects the starting edge and is perpendicular to the first end surface. The reflector and the light source module can change the uniformity and the beam angle of the light, meanwhile, can ensure the achievability of the processing and manufacturing.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: December 8, 2020
    Assignee: Opple Lighting Co., Ltd.
    Inventor: Wenxue Zhu
  • Patent number: 10222068
    Abstract: A Patio Heater Double Dome Infrared Heat Reflector/Converter is disclosed. The patio heater dome attachment is attachable to a conventional patio heater so that the dome attachment covers the heater's heat shield, while maintaining an air gap therebetween. There are preferably standoff ridges or other features built into the dome attachment to maintain this air gap and to prevent air from flowing freely between the heat shield and the dome attachment. The dome attachment embodies a very low heat load so that very little heat conduction occurs between the heat shield and the dome attachment, such that more of the heater's energy is reflected towards the usage area. Finally, the perimeter edge of the dome attachment extends downwardly at least until it is essentially horizontally planar with the perimeter edge of the patio heater heat shield.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: March 5, 2019
    Inventor: John Bechtold
  • Patent number: 8960958
    Abstract: A light-emitting diode (LED) troffer adopts LED light sources mounted along two lengthwise sides of an LED module that uses a reflecting diffuser and a diffused light exit window to sufficiently average white light emissions from a plurality of LEDs or to properly mix light emissions from white LEDs at correlated color temperature (CCT) of 6,200±300 K with emissions from LEDs having saturated colors for uniform and tunable CCT light outputs having a consistent intensity or color hue within viewing angles. The troffer adopting a retrofittable design enables single person to readily hang and secure the LED module single-ended on top of the troffer for installation, retrofit, and inspection. The troffer uses such an integrated LED module with a power density less than 0.0127 W/cm2, and thus no apparent heat sink is needed.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: February 24, 2015
    Assignee: Lightel Technologies, Inc.
    Inventors: Chungho Hsia, Pai-Sheng Shen, Chunte Yu
  • Patent number: 8939615
    Abstract: A wall notification device described herein can draw a lower current by providing a more efficient reflector configuration. The reflector is designed to be positioned on a wall and provide sufficient light output in each of the requisite directions, as required by the UL 1971 standard. The notification device has a reflector unit having a base having a curved portion centered on the vertical axis and a flat portion extending from the curved portion; a reflective flange extending from a location near a top side of the base; a first and second specular protrusion extending from the curved portion of the base; a third and fourth specular protrusion extending from the base; a fifth and sixth specular protrusion extending from the curved portion of the base; and a sixth and seventh specular protrusion extending form the flat portion of the base.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: January 27, 2015
    Assignee: Cooper Technologies Company
    Inventors: Wei Rong, Joseph Kosich, Crystal Pierz
  • Patent number: 8794800
    Abstract: A lamp shield (1) for coupling to an illuminating device (2) includes a housing (21) and a light source (22) disposed in the housing (21). The lamp shield (1) includes a top wall (11) having a reflecting surface (114) for facing the light source (22), and a surrounding wall (12) connected to the top wall (11). The surrounding wall (12) has a light transmissive portion (121), and an engaging portion (122) respectively proximate to and distal from the top wall (11). The engaging portion (122) has at least one slit (14) extending from a bottom edge (17) thereof toward the light transmissive portion (121), and is for engaging the housing (21). The light transmissive portion (121) includes a plurality of connecting ribs (123) interconnecting the top wall (11) and the engaging portion (121), and a plurality of light-passage holes (124) alternating with the connecting ribs (123).
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: August 5, 2014
    Assignee: Tsair Yih Industrial Co., Ltd
    Inventor: Yu-Ta Chen
  • Patent number: 8721131
    Abstract: A lighting unit comprises a slender substrate; a plurality of semiconductor light sources arranged in a row in the lengthwise direction on the substrate; and a light reflector disposed along one long side of the substrate, the light reflector has a multi-reflector in which a plurality of small pieces are combined.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: May 13, 2014
    Assignee: Nichia Corporation
    Inventor: Hiroshi Miyairi
  • Publication number: 20130308322
    Abstract: A wall notification device described herein can draw a lower current by providing a more efficient reflector configuration. The reflector is designed to be positioned on a wall and provide sufficient light output in each of the requisite directions, as required by the UL 1971 standard. The notification device has a reflector unit having a base having a curved portion centered on the vertical axis and a flat portion extending from the curved portion; a reflective flange extending from a location near a top side of the base; a first and second specular protrusion extending from the curved portion of the base; a third and fourth specular protrusion extending from the base; a fifth and sixth specular protrusion extending from the curved portion of the base; and a sixth and seventh specular protrusion extending form the flat portion of the base.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 21, 2013
    Inventors: Wei Rong, Joseph Kosich, Crystal Pierz
  • Patent number: 8496363
    Abstract: A wall notification device described herein can draw a lower current by providing a more efficient reflector configuration. The reflector is designed to be positioned on a wall and provide sufficient light output in each of the requisite directions, as required by the UL 1971 standard. The notification device has a reflector unit having a base having a curved portion centered on the vertical axis and a flat portion extending from the curved portion; a reflective flange extending from a location near a top side of the base; a first and second specular protrusion extending from the curved portion of the base; a third and fourth specular protrusion extending from the base; a fifth and sixth specular protrusion extending from the curved portion of the base; and a sixth and seventh specular protrusion extending form the flat portion of the base.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: July 30, 2013
    Assignee: Cooper Technologies Company
    Inventors: Wei Rong, Joseph Kosich, Crystal Pierz
  • Patent number: 8322881
    Abstract: A light emitting diode (LED) lighting fixture includes a base plate having a front side and a rear side. A plurality of lighting strips is mounted on the front side of the base plate. A reflector is mounted to each of the lighting strips and desirably comprises multi-faceted side walls extending away from the light strip. Driver circuitry and control circuitry are mounted to the base plate, and are electrically coupled to a power supply for powering and controlling the plurality of LEDs. Each of the lighting strips includes a plurality of linearly-arranged LEDs, and each of the light emitting diodes has a diode base and a light emitting portion. The multi-faceted side walls of the reflector cause light produced by the plurality of LEDs to be amplified and formed into a bath or wash of light.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: December 4, 2012
    Assignee: Appalachian Lighting Systems, Inc.
    Inventor: James J. Wassel
  • Patent number: 8220941
    Abstract: A solar simulator for testing photovoltaic cells is disclosed herein. The solar simulator includes a housing having an opening through which light is emitted. The solar simulator employs a plurality of concave cylindrical mirrors and a plurality of flat mirrors that reflect and redirect images of an illuminated light source such that an observer at a target area outside the housing will perceive multiple instances of the illuminated light source. The housing also contains a flat top cover mirror and a flat bottom cover mirror that function to reflect additional light through the opening and toward the target area.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: July 17, 2012
    Assignee: The Boeing Company
    Inventor: Douglas Jungwirth
  • Publication number: 20120140488
    Abstract: A wall notification device described herein can draw a lower current by providing a more efficient reflector configuration. The reflector is designed to be positioned on a wall and provide sufficient light output in each of the requisite directions, as required by the UL 1971 standard. The notification device has a reflector unit having a base having a curved portion centered on the vertical axis and a flat portion extending from the curved portion; a reflective flange extending from a location near a top side of the base; a first and second specular protrusion extending from the curved portion of the base; a third and fourth specular protrusion extending from the base; a fifth and sixth specular protrusion extending from the curved portion of the base; and a sixth and seventh specular protrusion extending form the flat portion of the base.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Applicant: Cooper Technologies Company
    Inventors: Wei Rong, Joseph Kosich, Crystal Pierz
  • Patent number: 8113694
    Abstract: A wall notification device described herein can draw a lower current by providing a more efficient reflector configuration. The reflector is designed to be positioned on a wall and provide sufficient light output in each of the requisite directions, as required by the UL 1971 standard. The notification device has a reflector unit having a base having a curved portion centered on the vertical axis and a flat portion extending from the curved portion; a reflective flange extending from a location near a top side of the base; a first and second specular protrusion extending from the curved portion of the base; a third and fourth specular protrusion extending from the base; a fifth and sixth specular protrusion extending from the curved portion of the base; and a sixth and seventh specular protrusion extending form the flat portion of the base.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: February 14, 2012
    Assignee: Cooper Technologies Company
    Inventors: Wei Rong, Joseph Kosich, Crystal Pierz
  • Patent number: 7988309
    Abstract: An illumination device has a light source that supplies illumination light to an object to be illuminated and also has a corner cube member disposed at the opposite side of the light source with respect to the object to be illuminated. With this feature, efficient illumination of the object to be illuminated is achieved without need for high precision in positioning.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 2, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Saitoh, Hiroshi Yoshikawa
  • Publication number: 20110058381
    Abstract: An optical reflector includes a reflector body (1) having a receiving space (11) and an opening (12). The receiving space of the reflector body has a peripheral wall provided with a reflective surface. The reflective surface of the reflector body includes a light splitting zone (14), two light scattering zones (15) and two light gathering zones (16). The light splitting zone of the reflective surface includes an elongate protrusion (141). Each of the two light scattering zones of the reflective surface includes a plurality of elongate arcuate convex portions (151). Each of the two light gathering zones of the reflective surface includes a plurality of elongate arcuate concave portions (161).
    Type: Application
    Filed: September 10, 2009
    Publication date: March 10, 2011
    Inventors: Ray Chiang, Jeffrey Huang, Patrick Chen
  • Patent number: 7850342
    Abstract: A luminaire reflector of the type that is dome-shaped and includes a flange at the bottom provides a modified a flange that alters the pattern or other effect of light trapped in the wall of the reflector and exiting through the flange. When the bottom surface of the flange is angled with respect to the horizontal, the light exiting the flange is spread and lifted. In accordance with another embodiment, the flange is provided with a colored layer to provide decorative effects to the light exiting the flange.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: December 14, 2010
    Assignee: ABL IP Holding LLC
    Inventor: Yaser S. Abdelsamed
  • Patent number: 7762694
    Abstract: In a lighting device for a vehicle including a reflector in which an aluminum deposited layer is formed on a surface of a resin member, the resin member is molded through a resin obtained by adding, to a crystalline resin, a filler having a size smaller than a wavelength of a visible light, and a smooth surface and a fine concavo-convex surface are mixed into a surface of the reflector (the resin member) which is molded. The aluminum deposited layer is directly deposited on the surface of the resin, and the smooth surface is formed as a mirror finished surface and the fine concavo-convex surface is formed as a semiglossy surface. As compared with a case in which the reflector is constituted by only the simple mirror finished surface, the semiglossy surface designed to have a proper area is present so that a sense of gloss can be suppressed as a whole and a sense of high quality can be given.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: July 27, 2010
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Toshimasa Ikeda, Takahiro Kohata
  • Patent number: 7717599
    Abstract: A light source module is provided comprising an emitter having at least one light emitting surface and an at least partially hollow integrating optic mounted over the emitting surface; where the index of refraction within the hollowed area is less then the index of the subsequent medium along the optical path. The integrating optic has a proximal end facing the emitting surface and a distal end facing away from the emitting surface. The distal end of the integrating optic is flat and has a rectangular aspect ratio which can differ from the aspect ratio of the emitter. One or more optical films and/or an optical component such as a collection lens can be adhered to the distal end of the integrating optic.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: May 18, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Jennifer L. Grace, Patrick R. Destain, William E. Phillips, III
  • Patent number: 7588345
    Abstract: A lumenaire including a light fixture housing for supporting a lamp and a reflector disposed over the lamp. A diffuser is arranged under the lamp and has a lower arch-shaped portion for supporting a liner with a predetermined pattern for both reflecting and transmitting incident light from the lamp. The diffuser also includes upper end portions comprised of a material for refracting incident light from the lamp.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: September 15, 2009
    Assignee: Arch Lighting Group Inc.
    Inventors: Scott A. Davis, Mikael Robbins
  • Patent number: 7566146
    Abstract: A backlight unit includes a case; a first reflector on a surface of the case; a light source disposed on the first reflector; and a second reflector having a first reflective portion and a second reflective portion along first and second sides of the case.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: July 28, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Seong Man Jeon
  • Patent number: 7556399
    Abstract: A light reflector assembly for providing selective direct and indirect lighting includes a first section reflecting light from a first light source in a first direction and a second section reflecting light from a second light source in a second direction. The first section and the second section are connected by a central section or by end caps. The first section substantially surrounds a first light source to provide direct lighting for the user, and the second section substantially surrounds a second light source to provide indirect lighting for the user, either at the same time or independently, as desired by the user. The position of the first and second section may be adjusted to control the light dispersed by the light sources as desired by the user, and may further include secondary reflectors or diffusers for adjustment of the light.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: July 7, 2009
    Inventor: Michael L. Bailey
  • Patent number: 7455438
    Abstract: A module for projecting a light beam comprises a light source and a substantially flat support surface on which the source is arranged in a manner such as to emit light from only one side of the surface, and a reflector for reflecting the light emitted by the source. The reflector comprises a curved reflecting surface which extends on one side of the support surface, has a concavity facing towards the support surface, and can reflect the light coming from the source in a principal direction substantially parallel to the support surface of the source. An optical device for a module according to the invention and a vehicle front light assembly comprising a plurality of modules according to the invention form further subjects of the invention.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: November 25, 2008
    Assignee: C.R.F. Societa Consortile Per Azioni
    Inventors: Piermario Repetto, Stefano Bernard, Denis Bollea, Davide Capello
  • Patent number: 7300185
    Abstract: A reflector for focusing light emitted from a light source in a generally planar direction is disclosed. The reflector is matched with the light source that is preferably a light emitting diode (LED) mounted on a substrate. The reflector is mounted over the LED on the substrate. The reflector is made of a clear material. The reflector has a semi-cylindrical front surface and a back surface with an indentation that is compatible with the light source. The reflector has a top reflecting surface divided into two quadrants and a bottom reflecting surface divided into two quadrants. The top quadrants and bottom quadrants are symmetrical in shape and reflect light emitted from the light source in a substantially horizontal plane. The reflecting surfaces may be TIR based or they may be coated with a reflective material in order to focus light from the LED.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: November 27, 2007
    Assignee: Opto Technology, Inc.
    Inventors: Marvin Ruffin, Craig Fields
  • Patent number: 7255461
    Abstract: A lamp comprising a light source (18) and a reflector (26), wherein the reflector is of non-circular cross-section perpendicular to the longitudinal axis of the lamp and comprises several panels (20). Each panel has an undulating surface (22) that diffuses the light and so provides a relatively uniform level of illumination. The reflector panels may be concave and preferably form a hexagonal or square section reflector that is closed by a transparent cover (24). The lamp is provided for use as a recessed ceiling light and is secured by a circlip (44) and a sprung bracket mount (30). Also disclosed is a lamp with a non-circular section reflector formed from concave reflector panels.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: August 14, 2007
    Assignee: Aurora Limited
    Inventor: An Xue Yang
  • Patent number: 7220039
    Abstract: A backlight device for a liquid crystal includes a substrate, a light source including a first plurality of green light emitting diodes, a second plurality of blue light emitting diodes, and a third plurality of red light emitting diodes arranged along a first row direction on the substrate in an offset matrix-type configuration, wherein white light emitting diodes are disposed at both ends of the configuration of the green, blue, and red light emitting diodes.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: May 22, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: In Ho Ahn, Jae Burn Kim, Seung Hoon Yang
  • Patent number: 6988816
    Abstract: An apparatus and method are provided for providing substantially uniform illumination. The apparatus includes an elongate reflector housing with an inner surface having a substantially constant profile in cross section which is generally concave, an optical center being defined at a geometric focus of the profile of the inner surface. In a preferred embodiment, substantially uniform illumination is achieved by providing an elongate light source positioned within the elongate reflector housing such that a geometric center of the light source is situated preferably spaced outwardly from the optical center of the housing, away from the inner surface of the housing.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: January 24, 2006
    Assignee: Manitoba Hydro-Electric Board
    Inventor: Ireneusz Witkowski
  • Patent number: 6989743
    Abstract: A light emitting diode (LED) warning signal light, the warning signal light comprising an array of light sources configured on a light support and in electrical communication with a controller and a power supply, battery, or other electrical source. The warning signal light provides various colored light signals for independent use or use by an emergency vehicle. These light signals may include a stationary light, strobe light, revolving light, an alternating light, a flashing light, and an oscillating light. Additionally, the warning signal light may be capable of displaying symbols, reverse characters, or arrows. Preferably, rotating and oscillating light signals are produced by sequentially illuminating columns of LED's on a stationary light support. However, the warning signal light may also be rotated or oscillated via mechanical means.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: January 24, 2006
    Assignee: 911EP, Inc.
    Inventor: John C. Pederson
  • Patent number: 6893143
    Abstract: The invention relates to a lamp, in particular, a lounge, table, or pocket lamp with a lamp head (13), comprising a light source (16), arranged in a hollow reflector (17), which extends with the plug-in, or terminal contacts thereof, through an opening in the rear of the hollow reflector. According to the invention, the light source is a light diode (16). The opening in the hollow reflector (17), lies very close to the outline of the cover of said light diode, such that the light diode is centralised and longitudinally fixed in position, relative to said hollow reflector. The hollow reflector has a reflector piece, surrounding the light emitting chip of the light diode; which is at least essentially conical in shape.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: May 17, 2005
    Assignee: Zweibruder Optoelectronics GmbH
    Inventor: Harald Opolka
  • Patent number: 6863414
    Abstract: A front light module includes a light guide plate having opposite ends and a front surface and an opposite back surface connected to each other by the ends. The front surface forms sets of raised ridges, each raised ridge having opposite inclined faces. The front surface also forms a recessed trough between adjacent sets of ridges. Each trough has opposite inclined faces. A light source is mounted to each end of the light guide plate for projecting a light into the light guide plate. A reflector is arranged adjacent to and spaced from the back surface of the light guide plate for accommodating a display board between the reflector and the light guide plate. The light from the light source is incident onto the inclined faces of the troughs and reflected thereby toward the reflector. The troughs have different depths whereby the inclined faces thereof are of different surface areas for reflecting different amount of light in order to provide a uniform brightness over the whole module.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: March 8, 2005
    Assignee: Quanta Display Incorporation
    Inventor: Yi-Chun Ho
  • Patent number: 6796691
    Abstract: An indicator lamp for a motor vehicle is delimited at least on one side by a partition (22) running along the lamp over a substantial depth and comprises a light source (10), a flux concentrator and/or recuperator element (211), glazing (30), and an auxiliary reflecting area (212) able to direct, towards the glazing in the vicinity of the partition (22), an auxiliary luminous flux the average direction (x′-x′) of which is substantially inclined with respect to the principal axis of emission (x-x). The auxiliary reflecting area comprises a segment of axisymmetric paraboloid focused in the vicinity of the source, and the axis of which is oriented along the said average direction.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: September 28, 2004
    Assignee: Valeo Vision
    Inventors: Valérie Molto, Claude Tribouiller, Jean Rit
  • Patent number: 6568835
    Abstract: The luminaire comprises a concave reflector (1) with an optical center (2) on an optical main axis (3), in an optical main plane (4). A screen (6) extends along the main axis (3) up to a light emission window (5). A panel (7) extends at a first side of the main plane (4) from the screen (6) up to the light emission window (5). The reflector (1) includes a first, faceted reflector portion (10) at the first side of the main plane (4), which extends towards the main plane (4), and which may be parabolically curved, the optical center (2) being its focus and the main axis (3) being its axis. A second, faceted reflector portion (20) is present at the other side of the main plane (4) and may be parabolically curved, which reflector portion has a side axis (22) passing through the optical center (2), and a focus lying in the optical center (2). The side axis (22) is tilted, with respect to the main axis (3), through acute angles in the main plane (4) and out of said main plane (4).
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: May 27, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Hendrik Wijbenga, Jean Paul Entrop, Cornelis Johannes Maria Erkamp
  • Patent number: 6527411
    Abstract: A lamp for emanating light has two or more light units assembled together. Each light unit comprises a light pipe having side surfaces to direct light from a light receiving end to a light exiting end and a light source. Each light pipe has a dedicated light source.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: March 4, 2003
    Assignee: Visteon Corporation
    Inventor: Edwin Mitchell Sayers
  • Patent number: 6527420
    Abstract: An illuminating module includes two spaced-apart light sources, two hemispherical reflectors, two parabolic reflectors and two planar reflectors. Each of the light sources is disposed at a common focal point of one of the hemispherical reflectors and one of the parabolic reflectors. Each of the parabolic reflectors faces a respective one of the hemispherical reflectors in one direction, and confronts a respective one of the planar reflectors in the other direction such that light rays from each of the light sources which radiate toward the respective hemispherical reflector and the respective parabolic reflector are directed to the respective planar reflector so as to be subsequently reflected to travel in parallel lines parallel to an optical axis.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: March 4, 2003
    Assignee: Prokia Technology Co., Ltd.
    Inventor: Fu-Ming Chuang
  • Patent number: 6517219
    Abstract: An lamp strip with a heat shrinkage tube provided with portions of different colors is disclosed. The lamp strip includes an elongate bar defining a plurality of bores spaced along the bar. A groove is defined in an outer surface of the bar and coextensive therewith. A light emitting element is received and retained in each bore. Each light emitting element has first and second wires received in and extending along the groove. The second wire of each bulb is jointed to the first wire of an adjacent bulb. The joint can be formed by simply twisting the wires together or by means of a connection element. The jointed portion of the wires is received in the corresponding cavity. The heat shrinkage tube having colorful patterns thereon or constituted by sections of different colors is fit over and encompassing the elongate bar. A light-transmitting outer tube made of plastics is then fit over the heat shrinkage tube.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: February 11, 2003
    Inventor: Hsien-Te Chen
  • Patent number: 6502950
    Abstract: The installation comprises a housing (3) which is assigned to one of the walls (5) of the room (42) which is to be lit. A light-guiding arrangement is provided in the housing (3) and is designed such that it can guide light from the outer end part (38) of the housing (3), through an opening (8) in the wall (5) of the room (42) which is to be lit, into said room. The outer mouth opening of the light-guiding arrangement is covered over with the aid of a sheet-like arrangement (25) which is designed such that it allows light to enter into the light-guiding arrangement. An arrangement for ventilating the room which is to be lit is also provided. One of the mouth openings (36) of said ventilating arrangement is located in the covering arrangement (25). A window (1) is arranged in the opening (8) of the room (42) which is to be lit, said window being designed such that it allows not only the incidence of light but also ventilation of the interior (42).
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: January 7, 2003
    Assignee: Heliobus AG
    Inventor: Rudolf Signer
  • Patent number: 6206549
    Abstract: A light reflector for use in a lighting device including a light bulb having a filament. The reflector includes a cup-shaped body having a parabolic internal reflective surface divided transversely into an inner portion surrounding the light bulb to focus light from the light bulb into a parallel light beam to produce a bright spot and an outer portion adjoining the inner portion. The outer portion is faceted to smooth blurring around the bright spot.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: March 27, 2001
    Assignee: World Hint Limited
    Inventor: Ying Hung Li
  • Patent number: 6079840
    Abstract: There is provided a surface light source device of side light type, which is not reduced in efficiency of illumination light utilization, even if the surface light source device is subjected to fringing such as to trim a luminant portion. For instance, a light shielding layer formed by coating black ink 21A, which absorbs illumination light, by means of printing is provided on a protection sheet 21 arranged as the outermost emission-side additional sheet. The light shielding layer absorbs and shields illumination light L1 tending to be transmitted through a peripheral edge portion of the protection sheet 12, and as a result, provides fringing. A reflective surface is formed by applying a silver tape 21B or the like to a surface facing the light guide plate 6. Since illumination light reflected by the silver tape 21B is used again inside the light guide plate 6, it is possible to avoid a reduction in efficiency of light utilization.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: June 27, 2000
    Assignee: Enplas Corporation
    Inventors: Toshiaki Ono, Manabu Takashio, Nobuhiro Arai
  • Patent number: 5826973
    Abstract: An illuminated display is disclosed, comprising a housing, a reflector and a light source for displaying translucent photographic images. The reflector and the light source are specially designed relative to each other to provide uniform luminance on a plane containing the image being displayed. An interchangeable frame and an adjustable positioning structure are used to make the display as functionally practical and as aesthetically pleasing as a conventional picture frame.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: October 27, 1998
    Inventors: John M. Melzian, Kenneth A. Zuckerman, Margaret S. Zuckerman, Daniel A. Schwartz
  • Patent number: 5825041
    Abstract: An apparatus for projecting electromagnetic radiation onto a curing surface. The apparatus includes a housing containing the curing surface. The housing also includes a source of electromagnetic radiation and an elongate primary concave reflector. The source of electromagnetic radiation is positioned within an expanse defined by the primary reflector. The housing also includes a secondary reflector positioned adjacently exterior to the primary reflector expanse. The primary reflector and the secondary reflector operate to reflect and redirect radiation emanating from said source onto said curing surface.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: October 20, 1998
    Assignee: Loctite Corporation
    Inventors: Ronald E. Belek, Robert Burger
  • Patent number: 5816694
    Abstract: A lighting fixture having an integrally formed reflector for distributing a substantially square pattern of light and a light source extending along the reflector axis between first and second ends. The reflector has a side wall which includes four similarly shaped quadrants, each quadrant having four distinctly shaped sub-quadrants. Each of the four similarly shaped quadrants has a first sub-quadrant for distributing light from the light source toward a corner portion of the substantially square pattern of light, a second sub-quadrant for distributing light from the light source toward a side portion of the substantially square pattern of light, and third and fourth sub-quadrants for distributing light from the light source toward interior portions of the substantially square pattern of light.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: October 6, 1998
    Assignee: General Electric Company
    Inventors: Barton K. Ideker, Omer E. Murray
  • Patent number: 5743634
    Abstract: In brief, the objects and advantages of the present invention are achieved by a reflector for an ornamental luminaire. The reflector includes a member formed of a metal material, the metal member having a predetermined thickness and being perforated with spaced apart apertures of a selected diameter and selected density. The metal member has a predefined reflector shape with the spaced apart apertures and the predefined reflector shape arranged to provide control of both an upper illumination distribution and a lower illumination distribution. The reflector metal member includes a plurality of positioning portions arranged for press-fit engagement within the ornamental luminaire. A hydroforming technique is used to form the metal member into the predefined reflector shape. The reflector is trimmed via a stamping process to a desired diameter and to provide the plurality of positioning portions in a precompression state.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: April 28, 1998
    Assignee: Lexalite International Corporation
    Inventors: Ronald L. Sitzema, Joel E. Robinson, Robert D. Towne, Jr.
  • Patent number: 5733030
    Abstract: A light reflector comprised of a plurality of facets (16). Facet (16) has a reflective interior surface that concentrates and directs the light emitting from a light-stick (18). Facets (16) have exterior surfaces that can be imprinted with information. The plurality of facets (16) creates a large aperture (10). The concentrated and directed light travels through the large aperture (10). The light reflector has at a point end (12) an acceptance means and a holding means to position light-stick (18). The acceptance means is a plurality of slits (24) and a plurality of slit stops (22). The holding means is the frictional property of the reflector material. The holding means can be enhanced by the addition of an encircling band (20). The light reflector is a foldable, flexible, compactable device that can be repeatedly bent and manipulated without fracturing and separating along a plurality of facet edges (14).
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: March 31, 1998
    Inventors: Michael Cohn, David Zeidman
  • Patent number: 5730521
    Abstract: A luminaire especially suited for sports and roadway applications. The reflector of the luminaire has a modified parabolic shape wherein a true parabolic curve has been tipped inwardly to produce a tipped parabolic reflector having a circle of focal points centered on the focal point of the original true parabolic curve. The lamp comprises a double-ended arc lamp which is positioned transversely of the central axis of the reflector with the arc of the lamp generally tangent to top dead center of the focal point circle. The luminaire further includes a vertical black partition positioned within the reflector below and forwardly of the lamp and a specular insert in the upper front region of the reflector.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: March 24, 1998
    Assignee: International Sports Lighting, Inc.
    Inventors: Kenneth M. Spink, Thomas M. Lemons
  • Patent number: 5676455
    Abstract: Disclosed herein is a light unit for narrow hallways A reflector housing is provided to project light from a vertically extending bulb in an indirect manner, so as to provide a substantially laterally extending light pattern. The reflector has internal reflecting surface surrounding the longitudinal axis of the bulb.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: October 14, 1997
    Assignee: SPI Lighting, Inc.
    Inventors: Dennis E. Johnson, Dean R. Smith
  • Patent number: 5676458
    Abstract: A cylindrical luminaire is provided whose components align easily, for quicker assembly, despite the lack of intrinsic preferred relative orientation in circular components. Circular end plates affixed in a desired alignment to the end of an elongated reflector have slots to receive a baffle and notches for alignment of a part-cylindrical cover. The reflector, cover and baffle are thereby assembled in proper alignment.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: October 14, 1997
    Assignee: Sylvan R. Shemitz Designs, Inc.
    Inventors: Sylvan R. Shemitz, David B. Miller, Gregory L. Moler
  • Patent number: 5659410
    Abstract: A wedge shaped parallelized light flux element made of a light scattering guide of an emitting directionality has a specified ranged effective scattering irradiation parameter and correlation distance "a". A light incident into the parallelized light flux element from a fluorescent lamp arranged facing a light incident surface of the parallelized light flux element is emitted from a light output surface as a parallelized light flux G1 by composite factors including forward scattering of the inside, repeated reflection on wedge shaped two sides, critical angular condition and boundary face transmittance for the light output surface. A total amount of parallel light flux G1 emitted from the parallel light flux emitting section F is reflected on a two side prism surface of two prism reflection element PR thereby being converted into sectional area enlarged light fluxes G2 and G3. They are incident on a liquid crystal panel LP through a light diffusion plate DF, and utilized as a backlight.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: August 19, 1997
    Assignee: Enplas Corporation
    Inventors: Yasuhiro Koike, Takayuki Arai
  • Patent number: 5539622
    Abstract: A strobe device is provided, including a light source and a reflector which reflects part of the light emitted from the light source. The reflector is provided with a reflecting surface that is shaped to form virtual images of the light source behind the reflecting surface.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: July 23, 1996
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Tuyoshi Ishikawa
  • Patent number: 5539623
    Abstract: A lighting device (32) is provided to illuminate indicia (18) of an EXIT sign (10) having a sign housing (12) defining an enclosure (22) therein and having a primary electrical power source. The lighting device is provided with a reflector (40) having a shallow V-shaped contour (43,44,45) defining a centrally located valley in the reflector and a source of illumination (42) positioned in the valley of the reflector and powered by the primary power source, the source of illumination including two rows of LEDs (65), each row having a plurality of LEDs, and the rows being separated from one another and positioned on either side of the valley. The LEDs are positioned on either side of the valley (44,45) a sufficient distance from the valley to illuminate the edges of the sign parallel to the valley while preventing areas within the valley from having dark and/or unilluminated spots. The rows of LEDs are mounted on opposite edges of a printed circuit board (70) positioned in the valley of the reflector.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: July 23, 1996
    Assignee: General Signal Corporation
    Inventors: Alan J. Gurz, James J. Burns, Hilaro S. Costa
  • Patent number: 5430630
    Abstract: For recessed lighting fixtures, particularly those mounted in ceilings, the present invention provides an easily attached removable accessory device for deflecting a portion of the light path in a selected direction that differs from the original direction, e.g. deflecting downwardly directed light to a substantially horizontal direction. A mirror assembly, typically having two round flat reflecting surfaces, one on each side, is supported by a wire hanger element via an axle portion passing diametrically through the mirror; the hanger element has a pair of hooks at the upper ends of two side wires that engage the recessed light fixture at any desired orientation around the axis of the fixture. The mirror can be tilted to any angle, and is retained at the selected tilt angle by friction of the wire axle being clamped between of a pair of resilient pads.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: July 4, 1995
    Assignee: Engineered Lighting Products
    Inventors: Ralph W. Swarens, Anatoly Kudishevich
  • Patent number: 5416683
    Abstract: A lighting fixture for overhead mounting to produce a generally-rectangular, outwardly and downwardly directed light illumination over a broad areal expanse. The fixture includes a pair of back-to-back arranged reflectors depending from a supporting overhead housing and defining arcuate, generally-parabolic sections flaring outwardly horizontally of one another from opposite sides of a lamp of the fixture. A refractor of polymeric organic composition overlying and protectively capping the lamp and the reflectors diffuses, distributes and directs illumination from the lamp, from the parabolic reflectors and from a reflector plate located above the reflectors to provide an expansive, essentially rectangular-beam light pattern of uniform illumination. Physically faceted upper sections constituting flattened areas of the parabolic reflectors enhance the distribution of light to ensure more even illumination patterns and eliminate "dark" zones.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: May 16, 1995
    Assignee: Kenall Manufacturing Co.
    Inventor: Charles A. McCarthy
  • Patent number: 5414604
    Abstract: A reflector for a fluorescent fixture having an elongate generally cylindrically concave inner surface defining a cavity shaped so that all portions of a fluorescent lamp along the reflectivity axis are within the cavity. The inner surface of the reflector includes a specularly reflective major central portion that reflects a major portion of light emitted from the lamp generally normal to an imaginary plane across an outlet side of the cavity to illuminate an area beneath the fixture, and opposite reflective signal portions adjacent opposite sides of the reflector that each direct a minor portion of the light emitted by the lamp across the open side of the cavity and past the opposite edge of the inner surface to indicate to persons spaced from the illuminated area that the fluorescent lamp is emitting light.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: May 9, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Roger M. Anderson