32results about How to "No light loss" patented technology

Disclosed herein are a microlens array sheet using micro machining and a method for manufacturing the same. The microlens array sheet comprises a microlens array having a convex and concave surface including curved portions and boundary grooves formed between respective neighboring microlenses via laser micro machining, and a void filler layer stacked on the microlens array. The microlens array sheet can be manufactured with a reduced number of process steps using laser micro machining, whereby improved productivity as compared to a conventional sequential semiconductor process can be accomplished. Using the laser micro machining, also, enables the manufacture of a desired three-dimensional micro shape. Therefore, the microlens array sheet is applicable as an optical sheet of a display system requiring a delicate surface shape.

The present invention provides a negative C-plate type optical anisotropic film having negative birefringence along the thickness direction. In particular, the present invention provides a film comprising cycloolefin addition polymer, which is prepared by addition polymerizing norbornene-based monomers, a method for preparing the same, and a liquid crystal display comprising the same. The film of the present invention can be used for optical compensation films of a variety of LCD (liquid crystal display) modes because the refractive index along the thickness direction can be controlled by the kind and amount of functional groups introduced to the cycloolefin addition polymer.

The object of the invention is to give a coloured, temperature-dependent appearance to the water flowing out of a hot-water fitting. For that purpose, three temperature ranges are formed and a colour is associated with each of the temperature ranges. The three ranges correspond to too cold, too hot and desired temperature ranges. A lever (4) is actuated to cause a water jet (20) to flow out of the fitting. Depending on the position of the lever (4), only cold water, only hot water or mixed proportions of cold and hot water flow into the mixing chamber (7). Depending on the temperature measured in the mixing chamber (7), a control block (13) drives diodes (17) arranged at the outlet of the hot-water fitting and having a colour which corresponds to the temperature range in question, causing the diodes to emit light. The water jet (20) flowing past the diodes (17) is illuminated with said colour. The user of the fitting can recognise the water temperature from the coloured appearance of the water jet (20) and if necessary correct it by actuating the lever (4).

The invention provides a light source device, which can prevent surfaces of an electric discharge lamp and a reflecting mirror from producing white spots caused by siloxane, inhibit light quantity decline, and maintain service life of the lamp. The light source device is provided with the electric discharge lamp and the reflecting mirror, wherein a pair of electrodes is arranged in an illuminating part, and sealing parts are formed at two ends of the illuminating part; the reflecting mirror comprises a reflecting part and a head projecting from a central bottom, the interior of the head is provided with a narrow part beginning from the reflecting part and a communicating hole formed by a concave part connected with the narrow part, one sealing part of the electric discharge lamp is inserted into the communicating hole and fixed by adhesive filled at the concave part, a lateral surface connecting the narrow part and the concave part forms an abutting surface vertical to a tubular axle of the electric discharge lamp, and the lateral surface comprises a first gasket inserted into the sealing part and abutted with the abutting surface and a second gasket inserted into the sealing partand abutted with the first gasket, wherein the inside diameter of the first gasket is the outside diameter of the sealing part, the outside diameter is smaller than the diameter of the concave part, the inside diameter of the second gasket is larger than the outside diameter of the sealing part, and the outside diameter is diameter of the concave part.

A light-emitting diode chip ( 1 ) comprises a GaN-based, radiation-emitting epitaxial layer sequence ( 3 ), an active region ( 19 ), an n-doped layer ( 4 ) and a p-doped layer ( 5 ). The p-doped layer ( 5 ) is provided, on its main surface ( 9 ) facing away from the active region ( 19 ), with a reflective contact metallization ( 6 ) comprising a radioparent contact layer ( 15 ) and a reflective layer ( 16 ). Methods for fabricating LED chips of this type by thin-film technology are provided, as are LED components containing such LED chips.

The invention relates to the field of diffusion plates, in particular to a foamed light diffusion plate and its preparation method and application. The present invention uses supercritical fluid for foaming to prepare the light diffusion plate. Compared with chemical foaming agents, no toxic substances will be left. At the same time, the prepared light can be diffused by controlling the feed rate of supercritical fluid. The board has excellent optical performance, can evenly light the gathered point light sources, has excellent haze, up to 99.6%, can achieve soft and uniform lighting effects, and has high light transmittance, the highest It can reach 52.6%, without causing excessive light loss; in addition, it also effectively reduces the quality of the light diffusion plate, reduces the amount of raw materials used, and reduces production costs, while maintaining excellent mechanical strength and good impact resistance Performance, successfully passed the IK03 test, and has broad application prospects.

The invention comprises a transparent base layer and a prism layer containing multi prisms and located on said transparent base layer. It features the following: multi micro lenses are located on the surface of the prism; by passing through the micro lenses, the light projected on the prism will be outputted in a direction more trending to the optical axis so as to increase the brightness of the optical film.

A light-emitting diode chip ( 1 ) comprises a GaN-based, radiation-emitting epitaxial layer sequence ( 3 ), an active region ( 19 ), an n-doped layer ( 4 ) and a p-doped layer ( 5 ). The p-doped layer ( 5 ) is provided, on its main surface ( 9 ) facing away from the active region ( 19 ), with a reflective contact metallization ( 6 ) comprising a radioparent contact layer ( 15 ) and a reflective layer ( 16 ). Methods for fabricating LED chips of this type by thin-film technology are provided, as are LED components containing such LED chips.

Provided is a three-dimensional image capturing lens system having a structure in which left and right image sensing lenses are provided, and light is synthesized to form an image on a single CCD (charge-coupled device) in order to prevent loss of light intensity.