Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8011812 | Illuminating tower A tower includes a base configured to sit upon a surface. A light source is coupled to the base and is positioned a first horizontal distance from a center of the base. The light source is configured to produce light therefrom when energized. The tower includes a cy... | 09/06/2011 |
| 7993036 | LED device for wide beam generation An apparatus and method is characterized by providing an optical transfer function between a predetermined illuminated surface pattern, such as a street light pattern, and a predetermined energy distribution pattern of a light source, such as that from an LED. A len... | 08/09/2011 |
| 7972039 | Light guiding diffuser A light guiding diffuser used for assembling with a light emitting diode module to form an illuminating light source. The light guiding diffuser includes an elliptical ring-shaped base portion and a convex portion extended from a surface of the base portion and form... | 07/05/2011 |
| 7967478 | Device for redirecting the luminous flux emitted by one or more LED A device redistributes light emitted by one or more LEDs and constitutes a secondary optical component for the construction of sources, lamps, illuminating bodies, and solid state optical signaling apparatuses. In one of its basic forms the device comprises a main o... | 06/28/2011 |
| 7789537 | LED An LED (10) includes a chip with a light-emitting surface (140) and an encapsulation on the chip. The encapsulation has a light output surface (110) facing the light-emitting surface of the chip and has a convex surface (112) surrounding ... | 09/07/2010 |
| 7782513 | Fast variable angle of incidence illumination for a machine vision inspection system A fast variable angle of incidence illumination configuration for a machine vision inspection system, including: a light source that directs a beam along a first optical path portion; a beam steering arrangement that receives the beam and steers it along a second op... | 08/24/2010 |
| 7722224 | Illuminating device incorporating a high clarity scattering layer The present invention provides improved optical elements, such as light diffusing films, plates, and lenses, which can be used in light-emitting devices, such as light fixtures to control the distribution of light projected onto illuminated objects, such as walls, s... | 05/25/2010 |
| 7690819 | External light shielding film and display filter having the same An external light shielding film including a lens pattern formed on a surface of a base substrate and including a plurality of aspheric lenses, and an external light shielding pattern formed on another surface of the base substrate, and a display filter having the s... | 04/06/2010 |
| 7631991 | Brightness enhancement of LED using selective ray angular recycling Light that is emitted from an LED chip at a first angle of incidence or less relative to the LED chip is permitted to leave the LED package. Light emitted from the LED chip at an angle of incidence greater than that is kept from leaving the LED package and is recycl... | 12/15/2009 |
| 7618160 | Near field lens A lens for use with a light emitting source is provided. The lens has a main body with a light-collecting face and a light-emitting face and which defines an optical axis extending through the centers of these two faces. A pocket for receiving light from the light s... | 11/17/2009 |
| 7443609 | Optical lens, optical module having the same, and backlight assembly having the same An optical module includes a point light source device and an optical lens. The point light source device generates light. The optical lens includes an inner curved surface and an outer curved surface. The inner curved surface has a first roughly ellipsoidal shape h... | 10/28/2008 |
| 7438445 | Side-emitting light-emitting element and packaging lens thereof A side-emitting light-emitting element and a packaging lens thereof, wherein the packaging lens comprises an incident surface, a reflective surface, a first refractive surface, and a second refractive surface. The first refractive surface has zigzag surfaces. After ... | 10/21/2008 |
| 7422347 | Planar light source and planar lighting apparatus A planar light source comprises at least one point light source disposed on a supporting substrate, and a cylindrical lens that covers the light emitting observation side of the point light source, wherein the cylindrical lens has a concave lens function in the dire... | 09/09/2008 |
| 7416315 | Faceted reflector, reflector configuration, and method for producing the reflector A faceted reflector includes a plurality of individual reflectors embedded in a carrier, one main area of the carrier being a light entry side, and another main area being a light exit side. The individual reflectors may be cavities in the carrier, which, preferably... | 08/26/2008 |
| 7403691 | Light guide plate having high-density dots A light guide plate (10) includes a pair of opposite incidence surfaces (101, 103), an emission surface (108) and a bottom surface (109) opposite to the emission surface. A plurality of dots (11) is distributed on the bottom surfac... | 07/22/2008 |
| 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 |
| 7372472 | Method and apparatus for graphically defining a video particle explosion effect A software library using a 3D graphics engine to produce a real time 3D particle explosion effect is provided. The particle explosion effect creation tool allows users to create their own particle explosion effect by defining their own shapes in a graphics image dat... | 05/13/2008 |
| 7334920 | Backlight module A backlight module (20) includes a plurality of light sources (24) and an optical sheet (21). The optical sheet includes a light incident surface (211), a light emitting surface (212), and a plurality of inverted rectangular pyrami... | 02/26/2008 |
| 7331693 | Zoom lens and image pickup apparatus including the same At least one exemplary embodiment is directed to a zoom lens which includes, in order from an object side to an image side, a first lens unit with a negative refractive power, a second lens unit with a positive refractive power, and a third lens unit with a negative... | 02/19/2008 |
| 7322706 | Device for adjusting light intensity for discharge lamp projectors The invention relates to a device for adjusting light intensity for discharge lamp projectors with an optical assembly that contains a spherical mirror and a discharge lamp, and a Fresnel lens provided in front of the lamp of the optical assembly. The device is char... | 01/29/2008 |
| 7314299 | Vehicle lamp and method of manufacturing the vehicle lamp A vehicle lamp includes an inner lens having a rigid structure. The inner lens is elastically fitted into a lamp housing. By securing an outer lens to the lamp housing, the lamp housing is made to have a rigid structure to fix the inner lens thereto. The inner lens ... | 01/01/2008 |
| 7300184 | Planar light source device and display device using the same In a planar light guiding device and a display device, plural light guiding rods are arranged in parallel to one another in a housing having an opening portion serving as a light emission face at the upper surface thereof, and a point light source (LED) 2 is ... | 11/27/2007 |
| 7278762 | Automotive headlamps with improved beam chromaticity Lenses for lamps can improve the quality of the light emitted through lens by interacting with the light bulb. Photoluminescent dyes as well as non-photoluminescent dyes may be incorporated into a polycarbonate lens in order to shift the chromaticity of the light so... | 10/09/2007 |
| 7275849 | LED replacement bulb A LED bulb and light module utilizes a LED light source and directs light therefrom in a manner which improves efficiency and illumination. Ideally, the LED bulb is structured to create a virtual image whereby the efficiency of light directed out of the module is gr... | 10/02/2007 |
| 7271963 | Bi-curvature lens for light emitting diodes and photo detectors A bi-curvature lens for diodes in an infrared wireless communication transceiver is disclosed. Devices having such a bi-curvature lens, such as a light emitting device, a light detecting device, and a transceiver are also disclosed. A method for designing such a len... | 09/18/2007 |
| 7246931 | LED light source A tube type light emitting diode light source including a light source generator, a light guide and a diffuser is provided. The light source generator includes LEDs arranging in a line. The light guide has a grooved light incident surface and a grooved light-guiding... | 07/24/2007 |
| 7234845 | Reflector for an electronic flash device and electronic flash device A reflector used in an electronic flash device that collectively emits direct light emitted from a light source and reflected light that has been reflected by a reflective surface onto a subject, and an electronic flash device that uses such reflector. The reflector... | 06/26/2007 |
| 7234835 | Lens-arrayed backlight module and liquid crystal display device The present invention relates to a lens-arrayed backlight module, consisting of a housing, a plurality of lamps, and a plurality of lens plates. The lamps are disposed in parallel between the housing and the lens plates to provide illuminating rays. The lens plates ... | 06/26/2007 |
| 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 |
| 7217002 | Ambient lighting system In a room lighting system (1; 27), e.g. an architectural lighting system, including two alignedly arranged refractive elements (9, 10) whose centers are substantially located in the beam axis (11) of a light source (7) and one (10)... | 05/15/2007 |
| 7178926 | Illumination device for use in daylight conditions An illumination device for use in daylight conditions includes a light-diffusing member provided with one or more dyes and a light source extending along and positioned adjacent a light-receiving surface of the light-diffusing member, with the light source emitting ... | 02/20/2007 |
| 7175328 | Piezoelectric light-emitting diode and backlight system using the same A light-emitting diode (LED) (10) includes a chip body (103), an encapsulation can (105) surrounding the chip body, and a base (106) supporting the encapsulation can and the chip body thereon. Numerous diffusion structures (1050) a... | 02/13/2007 |
| 7172324 | Internally illuminated light panel with LED modules having light redirecting devices An illuminated sign having front, back and side surfaces. A plurality of first cavities are formed into the back surface of the sign. A plurality of light emitting modules are disposed in the plurality of first cavities. The modules each include a light emitting dio... | 02/06/2007 |
| 7168839 | LED bulb A LED bulb and light module utilizes a LED light source and directs light therefrom in a manner which improves efficiency and illumination. Ideally, the LED bulb is structured to create a virtual image whereby the efficiency of light directed out of the module is gr... | 01/30/2007 |
| 7168840 | Piezoelectric light-emitting diode and backlight system using the same A light-emitting diode (LED) (110) includes a chip body (113), an encapsulation can (115) surrounding the chip body, and a base (111) supporting the encapsulation can and the chip body thereon. A diffraction grating (117) is provid... | 01/30/2007 |
| 7134766 | Lens-arrayed backlight module and liquid crystal display device The present invention relates to a lens-arrayed backlight module, consisting of a housing, a plurality of lamps, and a plurality of lens plates. The lamps are disposed in parallel between the housing and the lens plates to provide illuminating rays. The lens plates ... | 11/14/2006 |
| 7128435 | Luminaire A ceiling-mounted luminaire having a bent lens that has a horizontal portion for directing light downward, and a bent or diagonal portion for directing diagonally light toward an adjacent wall. The luminaire improves the flooding of light onto the wall. An auxiliary... | 10/31/2006 |
| 7104672 | Projection lens for light source arrangement A light source arrangement for substantially enhaning the lighting intensity of the light beams emitted from the light source therefore includes a lens body and an illumination unit. The lens body has an illumination portion defining a light projecting surface and a... | 09/12/2006 |
| 7076147 | Surface light source having light guide plate with polygonal cells A surface light source (100) includes a light guide plate (20) and a pair of point light sources (10). The light guide plate has an incident surface (201) and an emitting surface (202). The point light sources are adjacent the inci... | 07/11/2006 |
| 7048404 | Transparent decorative belt A transparent decorative belt, which has an undulating surface on one side or both sides is provided to be wrapped around a frame of a patterned decoration having a light string wound thereon. The light emitted from the bulb assembly of the light string is refracted... | 05/23/2006 |
