Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8186865 | Color light guide panel and liquid crystal display A color light guide panel, suitable for differentiating an incident light into multiple color lights is provided. The color light guide panel includes a substrate and a color light output structure. The substrate has multiple pixel regions, and the color light outpu... | 05/29/2012 |
| 7905646 | Lighting unit and display equipment provided therewith A light-guiding member is provided with two light source groups on its both terminals and the light-guiding board comprises two light mixing areas which have a cross section form which is symmetry for its center line, and a light outputting area between these. The l... | 03/15/2011 |
| 7806578 | Illumination device having light guide body The illumination device is provided with a plurality of light guide bodies, the bottom face of which is given light reflection/scattering treatment, light sources individually connected to the end portions of a plurality of the light guide bodies to radiate the bott... | 10/05/2010 |
| 7654681 | Surface light source device using light emitting diodes A surface light source device using light emitting diodes, the device including: a housing having a top opening to emit light; a light emitting diode board disposed on an inner bottom surface of the housing, the board on which a plurality of light emitting diodes ar... | 02/02/2010 |
| 7597467 | Lighting unit and liquid crystal display device using the lighting unit In a liquid crystal display device using LEDs emitting a plurality of colors as the light sources, diffusion materials are dispersed in a light guide plate. The light guide plate is used to guide and mix the plurality of colors with one another. The diffusion materi... | 10/06/2009 |
| 7553056 | Backlight unit A backlight unit that converts ultraviolet light emitted from light-emitting lamps into visible light is disclosed. The backlight unit also reflects the visible light, thus achieving improved luminance. The backlight unit includes a plurality of light-emitting lamps... | 06/30/2009 |
| 7430355 | Light emissive signage devices based on lightwave coupling A signage device comprising one or more light sources, a waveguide or arrangement of waveguides and photoluminescent features coupled thereto. In one embodiment, a waveguide is adapted to receive light of a first wavelength and the photoluminescent features are adap... | 09/30/2008 |
| 7413331 | LCD with multi-color optical unit and cross dichroic device The present invention relates to a backlight apparatus and a liquid crystal display apparatus, capable of realizing a backlight apparatus having high color reproductivity without color irregularities in a backlight apparatus having a LED device as its light source. ... | 08/19/2008 |
| 7384177 | Light emitting panel assemblies Light emitting assemblies include a tray that forms a cavity or recess containing one or more light sources. A sheet, film or substrate is positioned over the cavity or recess for controlling the light emitted from the assembly. The tray acts as a back, side or edge... | 06/10/2008 |
| 7350955 | Back light source module A back light source module of a liquid crystal device is provided. The back light source module includes a backplate, a light source fixture disposed on the backplate. The back light source module also includes a first light source having a first normal line and dis... | 04/01/2008 |
| 7350952 | Illumination system and display device using the same An illumination system that makes it possible to generate light with less color irregularity with a simple structure while restraining the increase of size is provided. A tube-shaped reflector having a tube-shaped wall whose inner surface is reflective is provided. ... | 04/01/2008 |
| 7347567 | Arrangement for projecting an image onto a projection surface and associated transformation lens system The invention relates to an arrangement for projecting an image, which is made of pixels, onto a projection surface, including at least one light source whose intensity can be altered and which emits a light beam, also including a deflection device which deflects th... | 03/25/2008 |
| 7344291 | Illuminating device and backlight device employing the illuminating device Disclosed is an illuminating device which, as a light source for a backlight device, mixes the colors of light rays of three prime colors radiated by light emitting diodes to emit white light. The illuminating device includes a first light source (22R) radiat... | 03/18/2008 |
| 7338196 | Low profile light panel Low profile, thin panels using a layer of clear cast polymer with a reflective, mirrored backing and edges and a light diffusing face sheet, carrying light sources using fiber optic lenses or diodes on all or any sides thereof. The reflective sides direct the light ... | 03/04/2008 |
| 7322731 | Color mixing illumination light unit and system using same An illumination light unit includes at least two light sources that generate light at different wavelengths. The illumination light unit also includes a reflecting cavity having one or more reflectors and a controlled transmission mirror disposed at an output of the... | 01/29/2008 |
| 7318665 | Corner enhancing device for light guide plate of backlight module A light guiding device to compensate insufficient lighting in a light guide plate's corner areas is provided. The light guiding device is positioned on the inner side of the lamp reflector neighboring to the electrodes at the ends of the lamp. The light guiding devi... | 01/15/2008 |
| 7303309 | Method and apparatus for backlit signs with light emitting diode modules A backlit sign with an LED module, with a housing that includes a top wall having a first length, a bottom wall having a second length, and a pair of opposing sidewalls each having a third length, wherein at least a portion of one of the sidewalls is translucent. On... | 12/04/2007 |
| 7290916 | Field emission light source and a related backlight device A light source (100) provided herein generally includes a substrate (110), a cathode (120), an isolating layer (122), a light-permeable anode (152), and at least one fluorescent layer (154). The substrate has a surface, and ... | 11/06/2007 |
| 7287892 | Light source for back-lit displays A light source having a light pipe and a light generation section. The light pipe includes a two-dimensional sheet of transparent material having a transparent top surface that is substantially parallel to a reflective bottom surface. The light pipe includes light p... | 10/30/2007 |
| 7278766 | LED based light guide for dual mode aircraft formation lighting A lighting device (1) includes one or more diode light sources (32), which are configured to emit light into the peripheral edges of a light guide (20). The light guide (20) includes a set of diffusing elements (22) for scattering ... | 10/09/2007 |
| 7270461 | Backlight unit and liquid crystal display utilizing the same A backlight unit for a liquid crystal display. The backlight unit in a liquid crystal display includes a light source having a plurality of basic cell structures. Each basic cell structure consists of three unique colors of first, second, and third light emitting di... | 09/18/2007 |
| 7256914 | Optical scanner An optical scanner for scanning a document includes a housing, a glass platform, an optical scanning module and a heat dissipating member. The glass platform is disposed on the housing for placing thereon the document to be scanned. The optical scanning module is di... | 08/14/2007 |
| 7246932 | Data display device A data display device including a light-guide element made of an optically transparent material having at least two polished surfaces faced to one another, whereby at least one surface contains at least one gravure forming a diffuse-reflective character, and a light... | 07/24/2007 |
| 7241040 | Backlight assembly and liquid crystal display apparatus having the same A backlight assembly includes a light supplying part and a light guide plate. The light supplying part includes a white light source and a monochromatic light source that generates a monochromatic light. The white light source generates a white light responsive to a... | 07/10/2007 |
| 7228052 | LED light pipe structure An LED light pipe structure includes a light pipe, a light refraction plate, and a light emitting diode which are integrally formed into one body, so as to enable the light emitting diode inside the light pipe to generate a visible light for illumination, through a ... | 06/05/2007 |
| 7226188 | Stage lighting methods and apparatus Spot illumination apparatus and methods are described. According to one implementation a spot luminaire includes a light source for emitting a beam of light and a projection lens configured to project the beam of light towards a distant target. A first field stop, t... | 06/05/2007 |
| 7220040 | LED light engine for backlighting a liquid crystal display An edge-lit backlighting system for liquid crystal displays employs a number of light strips in the form of thin, light weight sections of a thermally conductive substrate each of which mounts a plurality of light engines having an array of densely packed, primary c... | 05/22/2007 |
| 7220041 | Planar light source device Disclosed is a planar light source device comprising a light generation device comprising at least two light-emitting elements; a light-mixing device for mixing a generated light from the light generation device to generate a mixed linear light; and a planar light g... | 05/22/2007 |
| 7221416 | LCD Backlight unit and LCD having the same An LCD backlight apparatus includes a light guide plate placed under an LCD panel of the LCD to guide light to the LCD panel. The light guide plate has an even upper surface and a scattering pattern formed in a bottom surface. A plurality of monochromatic light sour... | 05/22/2007 |
| 7213939 | Hue adjusting lighting system This disclosure describes a lighting apparatus comprising a light hue modulating device that generates compensating light to adjust the light to a desired hue within a space regardless of the hue of the ambient light within the room. ... | 05/08/2007 |
| 7202920 | Liquid crystal display device Light-emitting elements can be accurately directly opposed to the entrance surface of a light guide at an accurate distance therefrom, and can be mounted on a single side of a printed circuit board together with other electronic components, whereby the number of man... | 04/10/2007 |
| 7186013 | Large size backlight apparatus reduced in thickness In a backlight apparatus used in an LCD, in which upper and lower reflective plates are installed under upper and lower transparent plates, respectively. The lower transparent plates and the lower reflective plates introduce light generated by lower light sources in... | 03/06/2007 |
| 7178965 | Light emitting panel assemblies having LEDs of multiple colors Light emitting panel assemblies include a hollow light emitting panel member having a sheet, film or substrate attached or positioned against one or both sides thereof to produce a desired effect. A pattern of deformities or disruptions may be provided on or in the ... | 02/20/2007 |
| 7140763 | Light distribution system Improved light distribution means comprising light distribution means constructed of material such as plastic, transparent metals and the like, which is strong enough to be used as permanent or mobile structural components of buildings, sidewalks, streets and the li... | 11/28/2006 |
| 7121708 | Illuminated logo unit with light guide plate An illuminated logo unit (300) includes an image panel (301), and an underlying illuminating device (310) transmitting light beams to the image panel. The illuminating device includes an inner discoid light guide plate (312) fitted into a... | 10/17/2006 |
| 7123796 | Light emissive display based on lightwave coupling A light emissive display having a specular waveguide that propagates short wavelength light and photoluminescent features adjacent to the waveguide that fluoresce, for example, in visible red, green, blue, and mixed colors when selectively coupled with the short wav... | 10/17/2006 |
| 7122812 | Leak detection lamp A light source for examining sites in heating, ventilating, and air conditioning systems for leaks using a fluorescent dye is described. The light source can include a low voltage lamp or a low heat generating lamp. ... | 10/17/2006 |
| 7121692 | Backlight module A backlight module includes a plurality of point light source generators, a diffusing plate installed on the plurality of point light source generators for scattering the light generated by the plurality of point light source generators, and a diffusing sheet instal... | 10/17/2006 |
| 7114840 | Exit sign illuminated by selective color LEDs An exit sign comprising a housing and a plurality of red and green color LEDs having the capability of being selectively activated to produce either red light or green light. The plurality of LEDs are mounted in a mutual lighting association in the housing. A switch... | 10/03/2006 |
| 7108414 | Light emitting panel assemblies Light emitting panel assemblies include one or more light emitting panel members each having at least one pattern of optical deformities that may be varied in size, shape, density, placement, angle, rotation and/or type to obtain at least one light output distributi... | 09/19/2006 |
