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President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 8075167 | Optical film and illuminating device having the same An optical film and an illuminating device having the optical film are provided. The optical film may include a first surface including a plurality of peaks and valleys formed from the plurality of peaks, a second surface opposite the first surface and a plurality o... | 12/13/2011 |
| 8057073 | Light pipe and illuminating device having the same A light pipe and an illuminating device having the light pipe are provided. The light pipe may include an optical film in a rolled shape to have a hollow conduit and a supporter surrounding a surface of the optical film. The supporter may have at least one of a prot... | 11/15/2011 |
| 7748874 | Light pipe and illuminating device having the same A light pipe and an illuminating device having the light pipe are provided. The light pipe includes an optical film including a plurality of prisms and being rolled to have a cavity extending along a longitudinal direction of the prisms; and a supporter surrounding ... | 07/06/2010 |
| 7401948 | Near field lens having reduced size A near field lens for an automotive light assembly which has a reduced thickness. Generally, the near field lens includes a main body of light transmitting material. A pocket is formed in the main body for receiving light from a light source. The pocket is defined b... | 07/22/2008 |
| 7306351 | Lens for side emitting LED device A light emitting device includes an LED package bases, an LED chip disposed on the LED package base, and a lens disposed on the LED package base. The lens includes a frustum shape having an inclined outer peripheral surface, and having a relatively smaller lower por... | 12/11/2007 |
| 7296910 | Light fixture and lens assembly for same A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned; a housing defining at least one selectively enclosable ballast enclosure; and a b... | 11/20/2007 |
| 7261435 | Light fixture and lens assembly for same A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such... | 08/28/2007 |
| 7229192 | Light fixture and lens assembly for same A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such... | 06/12/2007 |
| 7207700 | Near field lens with spread characteristics A near field lens is for an automotive light assembly, generally comprising a central body positioned between opposing side bodies. The central body extends in a vertical direction, while the side bodies are positioned on horizontal sides of the central body. The op... | 04/24/2007 |
| 7101062 | Headlight employing a combined mirror and deflection element with a non-flat light beam cut-off line The present invention relates to a headlight device comprising in particular a light source, a mirror exhibiting a reflecting surface and a transparent optical deflection element positioned in front of the mirror, the mirror being capable of interacting with the lig... | 09/05/2006 |
| 7046905 | Blacklight with structured surfaces A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structure... | 05/16/2006 |
| 7025476 | Prismatic reflectors with a plurality of curved surfaces A substantially bell-shaped light fixture component for use with a lighting fixture, the light fixture component having upper and lower openings and curved or undulating segments on the light fixture component body that diffuse light from the light source used in co... | 04/11/2006 |
| 6997591 | Synchronized flashing lighting device A flashing lighting device, most specifically designed for mounting inside and outside an automobile, is comprised of a housing and, within in, a circuit for storing at least one flashing sequence signal. At least one first array of light-emitting elements is close ... | 02/14/2006 |
| 6974235 | Prismatic structures having shaped surfaces Prismatic structures having at least certain conventionally linear surfaces thereof configured in a non-linear fashion to control the direction of light exiting said structures, the invention functions to reduce light losses in a luminaire or the like while facilita... | 12/13/2005 |
| 6974236 | Illuminating apparatus This specification discloses an illuminating apparatus having a light source and an optical unit disposed forwardly on the object side of the light source, the optical unit being provided with an incidence surface on which light from the light source is incident, a ... | 12/13/2005 |
| 6908219 | Optical element for a high mounted stop lamp with an LED light source An optical element for use in a high mounted stop lamp is formed with an LED light source mounted on a backing plate. The LED faces in a first direction to emit light towards a field to be illuminated. A light transmissive dome encloses the LED light source, the dom... | 06/21/2005 |
| 6899451 | Optical system for a fresnel lens light, especially for a spotlight or floodlight The optical system for the Fresnel lens light has an ellipsoidal reflector (1), a light source (2) and a Fresnel lens (3). The distance (a) between the Fresnel lens (3) and the reflector (1) is changeable but is related to the chan... | 05/31/2005 |
| 6883934 | Light source device, illumination device liquid crystal device and electronic apparatus A light source device 41A, 41B or 41C comprising a lens 44A, 44B or 44C which receives light from a light emitting device 43 such as LED. The lens 44A is a lens having the property that the directivity of exiti... | 04/26/2005 |
| 6866405 | Variable intensity illuminator lens A variable intensity illuminator lens may comprise a generally elongate transparent body having a first converging power at a first position on the generally elongate transparent body and a second converging power at a second position on the generally elongate trans... | 03/15/2005 |
| 6863420 | Anti-dazzling transparent screen for illuminants An anti-dazzling transparent screen for elongate illuminant bodies which covers the illuminant body over the length thereof for the purpose of anti-dazzling of a radiating sector of the illuminant body, has a surface formed by elongate prisms extending approximately... | 03/08/2005 |
| 6796686 | Color-corrected hollow prismatic light guide luminaire The color temperature of light emitted by a luminaire having a hollow prismatic light guide is varied to counteract aesthetically undesirable reddening gradient of the emitted light. Reddening is caused by the light guide's dielectric material, which absorbs blue li... | 09/28/2004 |
| 6755556 | Indicator light comprising an optical piece fulfilling an indicating function autonomously The invention proposes an indicator light, in particular for a motor vehicle. The indicator light includes a central optical axis, a light source and a solid optical piece. The solid optical piece includes at least (1) an input face whose generatrix lies in a direct... | 06/29/2004 |
| 6749313 | Plate-type luminaire Plate-type luminaire comprising a prism plate with a smooth upper plate surface and a prism lower surface formed by a plurality of longitudinal ribs; a cover plate made of translucent material resting on the prism surface; and an optical-waveguide plate on the smoot... | 06/15/2004 |
| 6698908 | Lighting fixture optical assembly including relector/refractor and collar for enhanced directional illumination control An improved optical assembly includes a reflector/refractor device and a reflector collar provided for enhanced directional illumination control. The reflector/refractor has a predefined shape and has a plurality of reflector/refractor prisms on an exteri... | 03/02/2004 |
| 6607286 | Lens and lens cap with sawtooth portion for light emitting diode A lens mounted to a light emitting diode package internally redirects light within the lens so that a majority of light is emitted from the lens approximately perpendicular to a package axis of the light emitting diode package. In one embodiment, the ligh... | 08/19/2003 |
| 6575601 | Lighting fixture optical assembly including relector/refractor and shroud An optical assembly enables improved optical control of an uplight illumination component and a downward illumination component. The optical assembly includes a reflector/refractor and a shroud carried by the reflector/refractor. The reflector/refractor h... | 06/10/2003 |
| 6568822 | Linear illumination source Shaped refractive articles having compound curved surfaces enable a light source to provide substantially uniform illumination of a linear or planar target. The refractive articles can comprise an input edge or face and an output edge or face, the input e... | 05/27/2003 |
| 6565239 | Flush luminaire with optical element for angular intensity redistribution A luminaire flush with a horizontal surface and comprising a housing, an optical window, a light source, and an optical element. The housing has an internal cavity disposed beneath the horizontal surface and defines an opening disposed adjacent the horizo... | 05/20/2003 |
| 6554451 | Luminaire, optical element and method of illuminating an object A luminaire comprising a set of light sources, in particular LEDs, which are arranged predominantly in a first plane, and a set of substantially identical optical sources arranged predominantly in a second plane extending parallel to the first plane. The ... | 04/29/2003 |
| 6554441 | Lighting installation, in particular as a danger light, and wind rotor installation with lighting installation The invention relates to a lighting installation, in particular as a danger light, obstruction light or day and night marker, having at least one luminaire, with at least one lighting means (13) being arranged in a housing. According to the invention, the... | 04/29/2003 |
| 6530679 | Light emitting device There is provided a light emitting device in this invention comprises a light source for supplying light, and plural light scattering devices disposed in front of the light source so as to be opposite to the direction of the light. Each of the light scatt... | 03/11/2003 |
| 6494596 | Reflector with textured inner surface and prismatic outer surface A reflector for a lighting fixture comprising a substantially bell shaped reflector wall with top and bottom openings and a substantially parabolic cross-section. The reflector wall includes an inner surface having a first top portion that is textured for... | 12/17/2002 |
| 6485166 | Plastic globe for use in lighting applications and method of making same An automated method as system for verifying end-to-end connectivity in a broadcast network such as an xDSL network including a plurality of elements such as ATM switches coupled to a subscriber modem. The method and system includes determining each of the... | 11/26/2002 |
| 6481873 | Lens for a warning light A convex lens for a warning light is provided with a plurality of prism-shaped prismatic elements projecting from the lens concave inner surface. The configuration and angular orientation of each prismatic element is selected to compensate for the curvatu... | 11/19/2002 |
| 6416210 | Headlamp for a vehicle An upwardly deflecting prism lens element is formed horizontally across a front-side surface of a focusing lens. The light-dark ratio of a borderline in a low-beam luminous intensity distribution pattern is reduced by upwardly deflecting a light beam, whi... | 07/09/2002 |
| 6340239 | Indicator light with uniform illuminating surface for a motor vehicle An indicator light comprises a source, an optical plate adapted to straighten out the incident light towards an average direction generally parallel to an optical axis, and a flux-distributing and recuperating cup interposed between the source and the pla... | 01/22/2002 |
| 6273591 | Indicator lights for motor vehicles An indicator light for a motor vehicle has a point source, an intermediate screen which receives the light directly from the source, and a cover glass outside the screen. The intermediate screen comprises a series of optical cells, each of which has, on a... | 08/14/2001 |
| 6250777 | Double-focus lens and vehicle lamp A double-focus lens is disclosed in which double-focus lens cuts (for example, cuts in which elements of the lens cuts formed on one of the surfaces of the lens include convex cuts in a first direction and concave cuts in the direction substantially perpe... | 06/26/2001 |
| 6129447 | Automobile lamp An automobile lamp comprising a light source, a shade covering the light source, a reflector having an aperture, an outer lens covering the aperture, and an inner lens arranged vertically between the shade and the outer lens, wherein the reflector has a c... | 10/10/2000 |
| 6116757 | Decorative illumination system An illumination system with a light source and a surrounding cylindrical array of refracting elements producing spokes of light on adjacent surfaces.... | 09/12/2000 |
