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7400439 |
Uniform illumination system
A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The...
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7380969 |
Planar light source system and light deflecting device therefor
A planar light source system having an LED ( 1 ) serving as a primary light source of substantially point-shaped light source, a light guide ( 2 ) having a light incident face on which light...
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7344282 |
Optical sheet and backlight assembly of liquid crystal display with the same
An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an...
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7338188 |
Light emitting device, method of manufacturing light emitting device, and image display device
A light emitting device includes a light emitting portion provided on a reference plane to supply light, and an optical portion provided on the output side of the light emitting portion to transmit...
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7322733 |
Light guide plate having micro-reflectors
A light guide plate having micro-reflectors is to increase luminance of the light guide plate by changing light route. The light guide plate includes an incidence plane, an illuminating plane, and...
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7312927 |
Head-up display
A straw holder for supporting a drinking straw in the mouth of a bottle is presented. The holder includes a straw support portion dimensioned for placement across the mouth of a bottle. The straw...
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7312839 |
Light guiding plate, liquid crystal display device using the same, and method for displaying pictures thereof
A light guiding plate includes a light incident portion into which light is incident from a light source, a light reflecting pattern to reflect the light provided from the light incident portion,...
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7303311 |
Lens having fresnel lens surface(s) and lighting apparatus using it
A lens comprising a transparent member having at least two surfaces, and a Fresnel lens surface provided on each of the two surfaces of the transparent member, the transparent member including a...
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7303291 |
Illumination apparatus and video projection display system
An illumination apparatus includes: a group of light source segments; a group of condenser lenses arrayed as opposed to the group of light source segments, and a group of rectangular lens elements...
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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...
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7290921 |
Light guide plate including sub-scattering-dots
A light guide plate ( 300 ) includes a light incidence surface ( 310 ) for receiving light beams, a light-emitting surface ( 320 ) for guiding light beams out of the light guide plate, and a bottom...
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7290917 |
Light guide plate with internal light guide elements and backlight module using the same
A light guide plate ( 32 ) for a backlight module includes a light incident surface ( 321 ), a bottom surface ( 323 ), and a plurality of light guide elements ( 320 ) disposed therein. Each light...
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7255458 |
System and method for the diffusion of illumination produced by discrete light sources
The present invention provides a system and method for the diffusion of illumination from discrete light sources such that the illumination is blended and directed in one or more desired...
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7252405 |
LED lantern with fresnel lens
A lighting device having a plurality of LEDs mounted on a heat sink that serves to transfer heat from the LEDs to the outside environment. The lighting device is positioned within a fresnel lens to...
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7241027 |
Illumination system providing light of Gaussian distribution, projection system, and method of forming color image
An illumination system includes a light source, first and second cylindrical lens arrays, and a relay lens. The first cylindrical lens array includes a plurality of cylindrical lens cells which...
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7237924 |
LED signal lamp
An LED signal using a novel optical element to control the light distribution of a small LED light source. Light emitted by the LEDs illuminates the optical element. The optical element has a...
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7234837 |
Light emitting device, light emitting apparatus, and image projection apparatus
A light emitting device, which includes at least one light emitting element, has a light emission portion which emits diffused light, at least one optical element upon which a concave portion is...
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7226197 |
Surface light source device and light guide used therefor
A light guide which guides light emitted from an LED includes a light incident end surface for receiving light, a light outputting surface for outputting a guided light, and a lens forming surface...
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7217006 |
Variation of power levels within an LED array
A lighting device having a plurality of high flux LEDs mounted on a heat sink and surrounded by a diffuser and a power supply that provides independent power to individual sets of the LEDs. The...
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7216999 |
Chemiluminescent illumination device with attached tactile sleeve
A chemiluminescent lighting device having a flexible casing surrounding the source of light. A separate transparent, translucent or opaque sleeve is placed about the casing to improve the gripping...
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7210840 |
Rod-shaped light transmission body, illuminating device, and liquid crystal display device
A rod-shaped light transmission body that has a plurality of prisms and converts light incident from a light source to linear light through the prisms to output the linear light, the prisms...
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7210806 |
High-density illumination system
A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The...
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7204616 |
Spread illuminating apparatus with light controlling means
A spread illuminating apparatus includes at least one light source, a light conductive plate having the at least one light source disposed toward one end surface thereof, and at least one light...
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7198390 |
Reflector, projective display and projector
It is an object of the present invention to provide a reflector made of heat-resistant glass. It is another object of the present invention to provide a projective display which uses the reflector....
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7192166 |
Lens having Fresnel lens surface(s) and lighting apparatus using it
A lens comprising a transparent member having at least two surfaces, and a Fresnel lens surface provided on each of the two surfaces of the transparent member, the transparent member including a...
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7188984 |
LED headlamp array
An LED headlamp array having discrete LED light source modules, where each light source module has an LED light source, optics dedicated to each LED light source, and a faceted reflector.
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7186004 |
Homogenizing optical sheet, method of manufacture, and illumination system
An optical sheet that accepts light transmitted at or within a specific entrance cone angle that then redirects and transmits the light within an exit cone that is substantially normal to the...
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7175316 |
Searchlight with improved optical density
This invention relates to searchlight type light devices including underwater light devices and automobile headlights. A light device in accordance with the present invention provides light beam...
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7175299 |
Multi-lens zoom system and method for flashlights
An efficient system and method for zooming the light from a flashlight is disclosed. Multiple refractive lenses are translated in unison to allow zooming of the light while reducing the size and...
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7159997 |
Linear lighting apparatus with increased light-transmission efficiency
The present invention provides for a linear lighting apparatus. The apparatus includes a plurality of light emitting diodes, a primary optical assembly, and a secondary optical assembly. The light...
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7156547 |
Light diffusive sheet and area light source element using the same
A light diffusive sheet of the present invention comprises a transparent polymer sheet provided with a light diffusion layer 3 on one side and an uneven surface 4 a having arithmetical mean...
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7154085 |
Object detection method and system
A method and system for monitoring a region of interest are presented. Incident radiation is transmitted towards the region of interest with a certain transmitting angle and with a predetermined...
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7153000 |
Multi-lens light emitting diode
A multi-lens LED has multiple lenses and an intermediate layer interposed between the multiple lenses in order to radiate light emitted from an LED chip in a desired direction and/or at a desired...
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7134769 |
Lantern, preferably for use on board ships, in particular leisure craft
The invention relates to a lantern, preferably for use aboard ships, in particular leisure vessels, which has a housing, at least one illuminant and a light-permeable cover. According to the...
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7134768 |
LED lamp with light guide
Light emitted from a plurality of LED light sources can be introduced into a light guide and inwardly reflected (totally reflected) at a first reflective surface formed on the light guide to form a...
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7123419 |
Collimating and optical elements with reduced mass
A lens for substantially collimating light in one axis and spreading light in an axis substantially perpendicular to the collimation axis including a lens an entry face which is positive and...
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7121693 |
Lamp, especially for illuminating interiors
A lamp assembly having a lens plate covering the opening and spaced from the lamp. The lens plate is provided with a multiplicity of microlenses such that the lens plate and lamp assembly generates...
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7121683 |
Direct backlight module
A direct backlight module for an LCD panel includes a base, a supporter plate and a plurality of films. The base further has a plurality of lamps parallel arranged thereinside. The supporter plate...
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7111961 |
High flux LED lighting device
A lighting device having a plurality of high flux LEDs mounted on a heat sink and surrounded by a diffuser. The heat sink serves to transfer heat from the LEDs to the outside environment. In one...
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7104665 |
Lighting device and display device incorporating the same
An illuminating device comprises a transparent substrate, an area light emitting device and at least one contact terminal for supplying electric power to the area light emitting device. The area...
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7097341 |
Light guide plate and surface light source
A light guide plate ( 32 ) used in a surface light source ( 30 ) for a liquid crystal display includes a light incidence surface ( 321 ) for receiving light beams, an emission surface ( 325 )...
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7072096 |
Uniform illumination system
A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The...
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7052140 |
Illumination device and projector equipped therewith
The illumination device in accordance with exemplary embodiments of the present invention is an illumination device including a light-emitting tube, an elliptical reflector, a parallelizing lens, a...
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7014343 |
Light guide plate with diffusing protrusions
A light guide plate ( 10 ) includes a transparent plate ( 20 ), and a plurality of diffusing protrusions ( 30 ). The transparent plate includes an emitting surface ( 21 ), and a bottom surface ( 23...
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7008099 |
Light source device
A light source device having a light guide ( 3 ) for guiding light emitted from a primary light source and emitting light obliquely from a light emission face ( 33 ) thereof, and a light deflecting...
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7008065 |
Color component aperture stops in projection display system
A projection display system employs one or more color modifying aperture stops, such as apodizing aperture stops, to provide high contrast, balanced color and high throughput. One projection system...
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7004611 |
Light emitting panel assemblies
Optical assembly includes a light emitter and a film through which light passes from the light emitter. The film has a uniform or variable pattern of individual deformities of well defined shape...
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6997589 |
Masking device for automobile vehicle headlights
A device for masking automobile vehicle headlights comprises at least one transparent optical element (B) inserted on the path of light rays between lighting sources and the headlight glass, the...
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6993244 |
Radial type light-guiding plate
A radial type light-guiding plate comprises a light source, a light-guiding plate, and a reflective component. The top face of the light-guiding plate is a light output face, and the bottom face...
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6991358 |
Planar light source unit and display device
A light guide plate has a hologram pattern on a light exit surface. The hologram pattern anisotropically diffuses light in the direction parallel with a light incident surface of the light guide...
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