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| Number | Title | Issue Date |
| 7815346 | Method for calculating out an optimum arrangement pitch between each two LED chip package units A method for calculating out an optimum arrangement pitch between each two LED chip package units, including: providing a backlight module with a predetermined brightness value and a predetermined material information that a customer needs; determining what brightne... | 10/19/2010 |
| 7784958 | Lens sheet, optical sheet, and backlight unit and display apparatus provided therewith The invention provides a novel lens sheet that can control a visual field range with high brightness while reducing side lobe generated in a conventional prism sheet, a low-profile, high-strength, high-display-quality optical sheet in which the lens sheet and a diff... | 08/31/2010 |
| 7744235 | Lighting device and light control member used therefor and image display device using the lighting device and the light control member In a lighting device, suppose a distance between centers of linear light sources is D and a distance between the linear light sources and a light control member is H and a function representing an outgoing light intensity toward a normal direction at a position coor... | 06/29/2010 |
| 7712932 | Light redirecting films having optical elements with curved surfaces The light redirecting films have a thin optically transparent substrate having a light entrance surface and an opposite light exit surface, at least one of the surfaces including a pattern of individual optical elements of well defined shape having two differently c... | 05/11/2010 |
| 7438444 | Light guide lens and light emitting diode package structure having the light guide lens A light guide lens includes a lens body having a light incidence surface and a light emission surface, a plurality of refraction structures formed on the light incidence surface, and a plurality of reflection structures formed on the light emission surface. The refr... | 10/21/2008 |
| 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 |
| 7431491 | Light guide plate and backlight module using the same A light guide plate includes a light input surface and a light output surface adjoining the light input surface. The light output surface defines a first portion adjacent to the light input surface, a second portion connected with the first portion away from the lig... | 10/07/2008 |
| 7378686 | Light emitting diode and side emitting lens The invention is an illumination system that incorporates a light emitting diode and a side-emitting light-recycling lens. The side-emitting light-recycling lens recycles part of the light internally generated by a light emitting diode back to the light emitting dio... | 05/27/2008 |
| 7364341 | Light redirecting films including non-interlockable optical elements The light redirecting films include a thin optically transparent substrate having a pattern of non-interlocking individual optical elements oriented and placed to produce a desired surface coverage of at least one of the surfaces of the transparent substrate of the ... | 04/29/2008 |
| 7360902 | System and method for light source modulation In one embodiment, a method for modulating light in an image display system includes generating a plurality of light beams. The amount of light beams that are received by a modulator is selectively varied, and the modulated light beams are received at the modulator.... | 04/22/2008 |
| 7357511 | Stress birefringence compensation in polarizing beamsplitters and systems using same Some projection systems use a polarization beamsplitter (PBS) for coupling light to and from an image-forming device. The PBS is typically formed with a reflective polarizing layer disposed between glass covers. Stress birefringence in the glass cover lying between ... | 04/15/2008 |
| 7354179 | Prism set and light emitting apparatus using the same A prism unit includes a first prism having a first incident face and a first refraction face that is adjacent to and that cooperates with the first incident face to define a first angle ranging 50° to 70°, a second prism having a second incident face that is gener... | 04/08/2008 |
| 7330315 | Light-redirecting optical structures A plurality of microstructures is provided, with each microstructure having at least a first side and at least a second side terminating at a peak. At least some of the peaks can include an elevated portion to space the peaks away from adjacent optical sheets, surfa... | 02/12/2008 |
| 7267466 | Cargo lamp assembly for vehicles A cargo lamp assembly for vehicles includes a white light emitting diode having an aperture for emitting a light beam in horizontal and vertical planes of about 120°, and a lens for receiving the beam and reducing the beam in the horizontal plane to about 60° and ... | 09/11/2007 |
| 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 |
| 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 |
| 7222994 | Illumination system An illumination system comprising, a) a light source; b) a light-directing assembly (1) in close proximity to the light source and comprising a plurality of microprisms (6), each microprism comprising an input surface (7) that admits light radia... | 05/29/2007 |
| 7217004 | Light emitting diode array module for providing backlight and backlight unit having the same A Light Emitting Diode (LED) array module, which can be used as backlight, includes a bar-shaped Printed Circuit Board (PCB) on which conductive patterns for transmitting power are formed, a base formed on the PCB and made of a heat conductive material, a plurality ... | 05/15/2007 |
| 7191529 | Apparatus and method for controlling a programmable marking scribe A programmable marking scribe having a material displacement stylus movable in three mutually orthogonal axes to displace material from an object being marked and create a two-dimensional matrix of recessed areas formed of grooves and surrounded by ridges, the groov... | 03/20/2007 |
| 7178949 | Lighting equipment The lighting device comprises a light source and an associated hollow reflector of transparent material having an internal surface and an external surface which are close to and far away from the source respectively. The inner surface of the reflector has in cross s... | 02/20/2007 |
| 7154572 | Liquid crystal display device An LCD device has scratch-resistant property without using a protection sheet and can provide enhanced brightness. The LCD device includes a light path regulating member. The member includes a first prism sheet having first prisms of which apex has a round shape. Th... | 12/26/2006 |
| 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 |
| 7090389 | Method of selecting a light redirecting film The method of selecting a light redirecting film or optical panel includes the steps of providing a length of film or substrate having a pattern of optical elements that varies, then selecting an area of the film or substrate that has a pattern of the optical elemen... | 08/15/2006 |
| 7066608 | Lamp reflector assembly A lamp assembly having a reflector (102) holding a lamp element, or burner (104). The reflector (102) typically is an ellipse, with the burner arc positioned at one foci of the ellipse. A reflector extension (108) is designed to mate to t... | 06/27/2006 |
| 7063448 | Backlight assembly and liquid crystal display apparatus having the same A backlight assembly has a light diffusion member including a diffusion layer for diffusing first light emitted from at least one lamp and a light path modulation layer formed on the diffusion layer to modulate the path of the first light, Therefore, the light diffu... | 06/20/2006 |
| 7040773 | Self contained and powered traffic signal using natural and artificial light An traffic light capable of utilizing both natural sunlight and artificial light for illuminating selective traffic signals. Natural light is directed to a natural light router or switch and to a color switch for providing a red, amber or yellow, and a green light f... | 05/09/2006 |
| 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 |
| 7025486 | Outside mirror with blinker light for vehicles A light assembly for a vehicle mirror is provided. The light assembly in one aspect has a light directing arrangement attached to a transparent pane, which directs a light beam into a specified zone, controls a color of the light beam and controls an intensity of th... | 04/11/2006 |
| 7021797 | Optical device for repositioning and redistributing an LED's light An optical device is for spatially displacing the output of a light-emitting diode (LED) and coupling the output to a predominantly spherical emission pattern produced at a useftul height above the LED. The device is made of a transparent dielectric material, such a... | 04/04/2006 |
| 6974234 | LED lighting assembly The present invention provides a lighting head assembly that incorporates a high intensity LED package into an integral housing for further incorporation into other useful lighting devices. The present invention primarily includes two housing components, namely an i... | 12/13/2005 |
| 6964494 | Safety/warning device A safety/warning device having a body adapted to releasably receive therein at least one source of electrical energy, the body having an open upper end in which is received a grommet, the grommet having first engaging means for engaging with second engaging means of... | 11/15/2005 |
| 6951400 | High index coated light management films There is provided an optical structure. The optical structure includes a light source. The optical structure also includes an organic light management film having an index of refraction of less than 1.7 disposed above the light source, and a transparent inorganic fi... | 10/04/2005 |
| 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 |
| 6827467 | Illuminating apparatus An illuminating apparatus having a light source, an optical unit disposed on the object side of the light source having a lens portion having positive refractive power in the central portion thereof, incidence surfaces on which light from the light source is inciden... | 12/07/2004 |
| 6808293 | LED lamp with prismatic cover lens The LED lamp includes a plurality of light emitting diodes and a cover lens arranged so that light emitted by the plurality of light emitting diodes is output through the cover lens. The cover lens has a plurality of prisms including a plurality of first prisms form... | 10/26/2004 |
| 6799859 | Surface illuminant device and prism sheet used therefor A surface illuminant device for illuminating a short-distance observation picture plane, capable of easily being enlarged in area without inviting a non-uniformity in visibility, the device comprising a light guide (12), a light reflection member (18),... | 10/05/2004 |
| 6773126 | Light panel with improved diffraction A light panel that includes a light source and a panel element operatively connected to the light source. The panel element includes a substantially transparent light transmitting material and is operative as a waveguide panel inside which light beams received from ... | 08/10/2004 |
| 6767105 | Planar lighting device A simple and inexpensive planar lighting device realizing a high luminance is provided, including: a light guide plate having a pair of opposite light entry faces, a light emitting face extending perpendicularly to the light entry faces, a plurality of hemispherical... | 07/27/2004 |
| 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 |
| 6726332 | TIR prism for DMD projector A light engine (9) for a projection display is provided which employs: 1) at least one light source (25), 2) at least one TIR prism assembly (13), and 3) at least one digital micromirror device (15), wherein: (a) the illumination path ( | 04/27/2004 |
