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7628514 |
Prism sheet and backlight module using the same
An exemplary prism sheet includes a transparent main body. The main body includes a first surface and a second surface. The first surface is opposite to the second surface. A plurality of elongated...
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7618164 |
Moire reducing optical substrates with irregular prism structures
An optical substrate having a structured surface that enhances brightness and reduces moiré effect. The optical substrate has a three-dimensionally varying, structured light output surface that...
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7593615 |
Optical devices for guiding illumination
Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from...
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7581842 |
Illumination apparatus and image-taking apparatus
An illumination apparatus having a structure which can make the inside of the apparatus hard to be seen from the outside without deterioration of light distribution, and is applicable to...
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7581850 |
Light guide plate and backlight module using the same
A backlight module ( 20 ) includes a light guide plate ( 23 ), a reflecting member ( 21 ) and a plurality of light source ( 22 ). The light guide plate has a light incidence surface ( 231 ) and a...
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7578607 |
Light deflector and light source device
A planar light source device has a primary light source ( 1 ), a light guide ( 3 ) having a light incident surface ( 31 ) on which light emitted from the primary light source ( 1 ) is incident and...
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7575340 |
Light-emitting diode light source system
A light-emitting diode light source system includes a plurality of light-emitting diode modules for providing light beams; a light-combining unit including a plurality of light incident sides and a...
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7575344 |
Lamp fixture
An improved lamp fixture with anti-glare function is disclosed, which comprises: a lamp; a light source; and a light-control unit, composed of a semi-Fresnel microstructure and a light-control...
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7553057 |
Display device and backlight unit for the same
A backlight unit for a display device includes a light guide plate formed with a first prism pattern on one of top and bottom surfaces, a lamp including first and second lamp portions facing first...
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7548376 |
Total internal reflection micro lens array
The invention relates to a total internal reflection micro lens array for a wide-angle lighting system. The micro lens array includes a plurality of Fresnel lens structures formed on a same optical...
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7534024 |
Optical deflector element and light source device
An optical deflector element has a light incoming surface ( 41 ) in which light enters and a light outgoing surface ( 42 ) located opposite the light incoming surface and from which light exits. In...
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7527407 |
Optic film and backlight module using same
An optic film includes a surface on which a plurality of densely distributed rib-like light guides is formed. Among the light guides, some are straight linear, while the others are of a continuous...
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7527416 |
Light guide plate with diffraction gratings and backlight module using the same
A light guide plate ( 12 ) has a light incidence surface ( 121 ) for receiving light, a light emitting surface ( 123 ) for emitting light, and a bottom surface ( 122 ). The bottom surface has a...
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7527401 |
Backlight module
A backlight module is provided. The backlight module includes a frame, a reflector, a plurality of light sources, at least one fan and at least one air vent. The frame has a lateral plate. The...
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7527394 |
Image-displaying apparatus
An image-displaying apparatus comprising a light-emitting diode, a relay lens, a secondary light source-forming prism arranged between the light-emitting lens and the relay lens, and a light valve,...
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7524073 |
Layered periodic structures with peripheral supports
A grating for an optical device. The grating includes a working area comprising a periodic grating structure and a non-working area comprising a support structure for mating with an additional...
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7517130 |
Planar light source unit
A planar light source unit including a light guiding plate ( 1 ) having an anisotropic diffusing surface ( 1 h ) which emits anisotropic diffusion light, and a light emitting source ( 2 ) for...
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7510308 |
Diffusing sheet, surface light source device, and transmission type display
The present invention provides a diffusing sheet, a surface light source device, and a transmission type display, that can attain uniform illumination so that the brightness of light on the display...
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7505205 |
Lighting system enabling combination of several light beams
The invention relates to an illumination system for combining two light beams. A prism bounded by two entrance faces that form a dihedron. An integrator is coupled to an exit face ( 20.3 ) of the...
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7497599 |
Transreflectors, transreflector systems and displays and methods of making transreflectors
The transreflectors may comprise a transparent substrate having reflective surfaces and other light transmissive surfaces for respectively reflecting and transmitting a greater portion of the light...
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7484871 |
Single lens for LED signal light
A lens 10 comprises a first surface 12 and a second surface 14 . The first surface 12 is provided with a plurality of horizontal, linear Fresnel lenses 16 and the second surface 14 is...
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7481562 |
Device and method for providing illuminating light using quantum dots
A device and method for providing illuminating light utilizes quantum dots to convert at least some of the original light emitted from a light source of the device to longer wavelength light to...
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7478913 |
Back-lit displays with high illumination uniformity
A directly illuminated display unit has a display panel and one or more light sources disposed behind the display panel. A diffuser is disposed between the light source unit and the display panel...
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7470045 |
Assembly for directed shading of outside lighting
A device for shielding outside lights comprising an essentially cylindrical, transparent shield body with a surface which is provided with a zigzag-shaped profile in a vertical direction in order...
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7470047 |
Lighting device with integration sheet
A light device with integration sheet is disclosed, which comprises: a light source; and at least a sheet, each being disposed at the light emitting end of the light source and comprising a...
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7458696 |
Adjusting structure of a laser indicator of a sawing machine
A laser indicator is secured on a rotating shaft of a sawing machine, on which rotating shaft a saw is fitted; the laser indicator consists of a base, an upper cover, a laser module, and a threaded...
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7452093 |
Prism sheet and display device using the same
A prism sheet for emitting an incident light in an even distribution state of light quantity even in the case of using an irradiating light source such as a point light source having an emission of...
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7448776 |
Brightness enhancement film having curved prism units
A brightness enhancement film includes a substrate and a plurality of curved prism units. The curved prism units are extended in parallel and mounted to a surface of the substrate. Each of the...
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7445361 |
Prism sheet and backlight module using the same
An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface opposite to the first surface, a plurality of elongated waved protrusions formed...
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7422353 |
Light-emitting device for image taking and image-taking apparatus having same
A light-emitting device is disclosed which enables efficient use of luminous flux and achieves a desired light emission characteristic. The light-emitting device has an optical member which has an...
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7419292 |
Illuminating device
An illuminating device includes a light source, an optical waveguide that emits light from the light source through an emission surface thereof, and a prism sheet that is provided on the emission...
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7413335 |
Prism sheet and backlight unit including the same
The present invention relates to a prism sheet having a side which is perpendicular to the normal of a light guiding plate. The prism sheet includes a prism sheet base film and a plurality of...
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7410280 |
Light guide for lighting vehicles, preferably motor vehicles
The present invention relates to a light guide for lighting vehicles, preferably motor vehicles. Light rays emitted from the light source of the light guide are reflected off of reflecting surfaces...
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7401962 |
Light deflection element and light source apparatus using the same
A surface light source apparatus includes a primary light source ( 1 ), an optical guide ( 3 ) for guiding light emitted from the primary light source and having a light incoming surface ( 31 ) and...
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7401967 |
Prism sheet and backlight module incorporating same
A prism sheet ( 10 ) includes a substrate ( 12 ) and a plurality of prism structures ( 14 ). The substrate includes a plurality of diffusing particles ( 122 ) dispersed therein. The prism...
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7377680 |
Light spreading device and backlight module utilizing the same
A light spreading device and a backlight module utilizing the same. The backlight module includes a light guide, a plurality of point lights, and a plurality of light spreading devices. The light...
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7360936 |
Method and system of LED light extraction using optical elements
A light extraction plate can be used with a light emitting diode (LED) to efficiently extract and provide control over the spatial distribution of extracted light in terms of intensity and angle....
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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...
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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...
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7359119 |
Optical arrangement for pre-processing primary illumination light
An optical arrangement for pre-processing primary illumination light is proposed, wherein a provided spectral processing section (P) comprises a multi-prism assembly ( 10 ) consisting of a...
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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...
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7347599 |
Etendue-squeezing illumination optics
In some embodiments, an apparatus for use generating illumination is provided that comprises a reflective base, a first light source positioned proximate the reflective base, and a reimaging...
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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...
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7320538 |
Optical film having a structured surface with concave pyramid-shaped structures
Optical films are disclosed, which have a structured surface including a plurality of concave pyramid-shaped structures, each structure having a base including at least two first sides and at least...
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7316498 |
Faceted optical substrate and method of fabricating a faceted optical substrate and a backlight display comprising the faceted optical substrate
There is provided an optical substrate. The optical substrate includes at least one prism structure. Each of the at least one prism structures has a first surface characterized by a first surface...
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7309149 |
Prism sheet, backlight assembly and liquid crystal display device having the same
A prism sheet, a backlight assembly having the prism sheet, and an LCD device having the prism sheet, the prism sheet includes a first surface, a second surface and a reflecting member. A light is...
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7303323 |
Backlight assembly of liquid crystal display
A backlight assembly of an LCD is provided. The backlight assembly includes a lamp for generating a light, a light guide plate disposed at a side of the lamp, for guiding the light, and a diffusion...
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7292767 |
Light guide plate and back light system using same
A back light system ( 2 ) includes a light guide plate ( 20 ) and light sources ( 21 ). The light guide plate includes an optical output surface ( 203 ), a bottom surface ( 202 ) opposite to the...
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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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7290902 |
Direct-type backlight
The present invention provides A direct-type backlight having: a resin sealing member including at least one resin layer, which has a light reflecting section formed on the outermost surface of the...
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