| Patent application number | Description | Published |
|---|
| 20100254013 | FRESNEL LENS WITH CAVITIES - An exemplary Fresnel lens includes a flat emitting surface and a plurality of annular Fresnel lens elements at an opposite side thereof to the emitting surface. Each of the Fresnel lens elements has a non-lens surface perpendicular to the emitting surface and a Fresnel lens surface adjoining the non-lens surface with an acute angle. Each of the Fresnel lens elements has a plurality of spaced cavities defined in the non-lens surface. | 10-07-2010 |
| 20100289176 | METHOD FOR MAKING MOLD - A method for making a mold, the method includes steps of: providing a substrate and a retaining member, the retaining member being made of polytetrafluoroethylene, and being ring-shaped; engaging the substrate with the retaining member; disposing viscous liquid polydimethyl siloxane containing material on the substrate within the retaining member; rotating the retaining member and the substrate to cause the polydimethyl siloxane containing material to spread out on the substrate and form a polydimethyl siloxane containing layer; press-molding the polydimethyl siloxane containing layer using a stamper to form one or more molding portions on the polydimethyl siloxane containing layer; solidifying the polydimethyl siloxane containing layer with the one or more molding portions; separating the stamper from the polydimethyl siloxane containing layer; and separating the substrate from the retaining member to obtain a mold. | 11-18-2010 |
| 20100301499 | MOLD AND METHOD FOR MANUFACTURING FRESNEL LENS - A mold for manufacturing Fresnel lenses includes a carrying holder, and a mold core including a bottom side surface adjacent to the carrying holder and a top side with a molding structure, wherein the mold core further comprises a number of through holes connected between the molding structure and the bottom side surface, and the carrying holder further comprises a number of pumping holes connected with the through holes. | 12-02-2010 |
| 20100301517 | MOLDING STAMPER AND METHOD FOR FABRICATING SAME - An exemplary method for fabricating a molding stamper includes the following steps. Firstly, a master mold having microstructures spaced apart from each other is provided. Secondly, a patterned layer is formed on the microstructures, the patterned layer having molding surfaces apart from each other, and being made of a flexible organic material. Thirdly, the master mold is removed from the patterned layer. Finally, a hard coating layer is deposited on the molding surfaces to form a molding stamper. | 12-02-2010 |
| 20100302801 | LIGHT GUIDE PLATE AND BACKLIGHT SOURCE HAVING SAME - An exemplary light guide plate includes an light incident surface, an light emitting surface, a number of parallel V-shaped structures, and a Fresnel lens portion. The light incident surface is configured for receiving light beams. The light emitting surface is adjacent to the light incident surface, and configured for emission of the light beams. The V-shaped grooves are defined in the light incident surface and arranged perpendicular to the light emitting surface. The Fresnel lens portion is provided on the light incident surface between each two neighboring V-shaped grooves. | 12-02-2010 |
| 20110017294 | PACKAGE FOR SOLAR CELL CHIP - A solar cell package comprises a ceramic substrate, a light-electricity transformation unit provided on the substrate for transforming solar energy into electricity, and a sealing component covering the light-electricity transformation unit and the ceramic substrate. A Fresnel lens is disposed corresponding to the top of the light-electricity transformation unit, converges and concentrates solar energy onto the light-electricity transformation unit. | 01-27-2011 |
| 20110017295 | PACKAGE FOR SOLAR CELL CHIP - A solar cell package comprises a substrate, a light-electricity transformation unit provided on the substrate for transforming solar energy into electricity, a package component covering the light-electricity transformation unit and the substrate, and a carbon nanotube film. The carbon nanotube film is provided on a surface of the light-electricity transformation unit to increase heat dissipation. A Fresnel lens is disposed corresponding to the top of the light-electricity transformation unit, and converges and concentrates solar energy on the light-electricity transformation unit. | 01-27-2011 |
| 20110132430 | SOLAR ENERGY CONVERSION DEVICE AND MODULE - An exemplary solar energy conversion device includes a substrate, a solar energy conversion chip, and a carbon nanotube layer. The substrate defines a through hole. The solar energy conversion chip is positioned on the substrate and covers the through hole. The solar energy conversion chip includes a light incident surface facing away from the substrate and a heat dissipating surface at an opposite side thereof to the light incident surface. The carbon nanotube layer is formed on the heat dissipating surface. | 06-09-2011 |
| 20110156291 | METHOD FOR MANUFACTURING FRESNEL LENS - A method for manufacturing a Fresnel lens includes the flowing steps: a. providing a mixture for forming the Fresnel lens; b. providing a lower mold on which the mixture is disposed; c. vacuumizing the mixture on the lower mold; d. providing an upper mold to exert a pressure on a top surface of the mixture; e. vacuumizing the mixture on the lower mold again; and f. heating the mixture on the lower mold to harden the mixture whereby the Fresnel lens can be obtained. | 06-30-2011 |
| 20110176184 | IMAGE SCANNER - An image scanner includes a light-pervious supporting plate, an enclosure, an image sensor, several light sources, and two or four light guide plates. The supporting plate supports an original to be scanned. The enclosure and the supporting plate cooperatively define a receiving space. The image sensor is received in the receiving space, and has a receiving surface. The two, four, or six light sources emit light. The light guide plates each include a light incident surface and an output surface. The light incident surface is configured for receiving light from the respective light sources. The output surface is configured for emission of surface light to scan the original on the supporting plate. In this manner, the surface light is reflected by the original to the receiving surface of the image sensor, thus an image of the original is captured. | 07-21-2011 |
| 20110220722 | RFID TAG ANTENNA AND METHOD FOR MAKING SAME - An exemplary radio frequency identification tag antenna includes a substrate and a patterned carbon nanotube layer. The patterned carbon nanotube layer is formed on the substrate. The carbon nanotube layer consists of a number of carbon nanotube segments. The carbon nanotube segments are connected end-to-end and well aligned. Each carbon nanotube segment includes a number of carbon nanotubes substantially parallel to each other. | 09-15-2011 |
| 20110303144 | APPARATUS FOR MANUFACTURING LIGHT GUIDE FILM - An exemplary apparatus for manufacturing a light guide film having patterns simultaneously formed on two opposite surfaces thereof, includes a first conveyor roller, a second conveyor roller, a imprinting group roller, two coating devices, two solidifying devices, a first template and a second template. The imprinting group rollers are positioned between the first and second conveyor rollers, including a first imprinting roller and a second imprinting roller opposite to the first imprinting roller. The two coating devices are positioned between the first conveyor roller and the imprinting group roller. The two solidifying devices are positioned between the imprinting group rollers and the second conveyor roller. The first template has a first imprinting pattern, and is fixed on a circumferential surface of the first imprinting roller. The second template has a second imprinting pattern, and is fixed on a circumferential surface of the second imprinting roller. | 12-15-2011 |
| 20110309387 | LIGHT EMITTING DIODE AND LIGHT MODULE HAVING SAME - An LED includes an LED chip, a first package configured for packaging the LED chip, the first package including a flat first surface, and a second package including a second surface opposing the first surface. A micro-structure is defined in the second surface and protruding toward the first surface. A gap is maintained between the first and second surfaces. The gap is filled with a filler, and the refractive index of the filler is smaller than that of the first and second packages. Light generated by the LED chip radiates first through the first package, then the gap and the micro-structure, thereafter the second package to finally reach an outside of the LED. A light module including the LED is also provided. | 12-22-2011 |
| 20120019935 | LIGHT RAY CONCENTRATION DEVICE - A light ray concentration device includes a concentrating lens and a base for holding the concentrating lens. The concentrating lens includes a planar surface defining a number of first Fresnel zones and a convex surface facing away from the planar surface and defining a number of second Fresnel zones. The first and second Fresnel zones are coaxial with each other. | 01-26-2012 |
| 20120024829 | LASER MACHINING DEVICE - A laser machining device for forming dots on a substrate includes a light-combining assembly having a first reflection surface and a second reflection surface, a first laser source module, and a second laser source module. The first laser source module emits a first laser beam to the first reflection surface along a first light path. The second laser source module emits a second laser beam to the second reflection surface along a second light path. The light-combining assembly combines the reflected first and second laser beams into a third laser beam to focus on the substrate. The light-combining assembly is moveable between the first laser source module and the second laser source module. The second laser source module is fixed relative to the first laser source module, such that a sum of the length of the first light path and the length of the second light path is maintained constant. | 02-02-2012 |
| 20120069252 | PROJECTOR SYSTEM - A projector system includes a light source module, a light guiding plate, a polarizing beam splitter (PBS) module and a projection lens module. The light source unit includes a red-color light source, a green-color light source and a blue-color light source respectively for emitting red, green and blue light. The light guiding plate optically combines light emitted from the red-color light source, the green-color light source and the blue-color light source. The PBS module is positioned opposite to the light output surface of the light guiding plate and is configured for splitting the combined light into s-polarization light and p-polarization light, reflecting the s-polarization light and converting the reflected s-polarization light into p-polarization light, modulating and outputting the converted p-polarization light using a display information signal. The projection lens module projects light with information onto a screen. | 03-22-2012 |
| 20120069253 | PROJECTION SYSTEM - A projector includes a light source module, a light guide plate, a polarizing splitter (PBS) module, and a reflection device. The light source module is configured for emitting light. The light guide plate includes a light incident surface, a light output surface, and a light reflection surface. The light source is aligned with the light incident surface. The PBS module includes a polarizing splitter and a LCOS panel. The polarizing splitter is aligned with the light output surface and includes a first mounting surface and a second mounting surface. The polarizing splitter reflects s-polarization light and allows p-polarization light to pass therethrough. The LCOS panel on the second mounting surface modulates the s-polarization light into light with display information signal and reflects the light with display information signal to a projection lens. The reflection device on the first mounting surface reflects the p-polarization light into the projection lens for projection. | 03-22-2012 |
| 20120170006 | COLOR WHEEL MODULE FOR PROJECTOR - A color wheel module includes a color disc having a plurality color filter segments, a liquid crystal ring, and a controller. Each border is defined between each two adjacent color filter segments, the borders comprising a reference border. The liquid crystal ring is positioned on the color disc to cover the color filter segments. The controller is connected to the liquid crystal ring. The controller includes a synchronizing module and a shading module. The synchronizing module obtains an central angle of the color disc between a light path perpendicularly radiating on the color disc and the border on the reference border. The shading module obtains the central angle. When the central angle is less than a preset angle, the shading module controls the liquid crystal ring to block light from passing through. Otherwise, the liquid crystal ring is controlled to allow light to pass through the color filter segments. | 07-05-2012 |
| 20120188515 | PROJECTOR HAVING LASER LIGHT SOURCE - A projector includes at least one laser light source and at least one optical component. Each laser light source is configured to emit light beams. Each optical component includes a magnifying element, a homogenizing element, and a Fresnel lens. The magnifying element is positioned adjacent to a corresponding one of the at least one laser light source and configured to magnify the light beams from the corresponding laser light source. The homogenizing element is configured to homogenize the light beams from the magnifying element. The Fresnel lens is configured to condense the light beams from the homogenizing element. | 07-26-2012 |
| 20120188629 | PROJECTION DEVICE - A projection device includes a light source, three digital micromirror devices (DMDs), a projection lens module, and three converging lenses. The light source emits light towards the three DMDs. Each DMD includes a plurality of reflective mirrors. The projection lens module projects light to a screen. Each reflective mirror selectively reflects light to the projection lens module. Each converging lens is positioned between the projection lens module and a respective DMD. | 07-26-2012 |
| 20120188785 | LIGHT GUIDE BODY AND LIGHT SOURCE ASSEMBLY USING SAME - A light guide body has a light guide block having a light incident side and an opposite light emitting side, the light guide block includes an inwardly curved surface, two toothed surfaces at opposite sides of the inwardly curved surface, and a light emitting surface located at the light emitting side. The toothed surfaces each has a number of teeth, with widths of bottom sides of the teeth descending in a geometric sequence with a common ratio greater than 0 and less than 1 in a direction away from the inwardly curved surface. The inwardly curved surface and the toothed surfaces are located at the light incident side. A light source assembly using the light guide body is also provided. | 07-26-2012 |
