Patent Application
20100212724
The present invention relates to collecting light; more particularly, relates to obtaining a light-collecting device with a good light-collecting efficiency, an easy mass-production, a low cost, a long life of use and an environmentally friendly effect.
A conventional light-collecting device includes a block of metal with a high reflectivity. On using the device, a lens is provided on a side of the light-collecting device at a proper distance while a solar cell or a photo-sensor is provided on another side of the light-collecting device at another proper distance. Light comes from a light source and reaches the lens. The lens converges the light. The light-collecting device further converges, collects and transfers the light to the solar cell or photo-sensor. Hence, the performance of the solar cell or photo-sensor is enhanced.
Although the conventional light-collecting device is able to collect the light to enhance the performance of the solar cell or photo-sensor, the conventional light-collecting device must include a block of metal with a high reflectivity to enhance the reflection of the light. To further enhance the reflection of the light, a film with a high reflectivity is provided on the block. The film can be provided on the block by coating. Alternatively, a plate is cut into a proper shape, the film is provided on the plate by coating, and the plate coated with the film is attached to the block by gluing. The process of coating and the process of gluing are complicated and expensive. Hence, the prior arts do not fulfill all users' requests on actual use.
The main purpose of the present invention is to obtain a light-collecting device with a good light-collecting efficiency, an easy mass-production, a low cost, a long life of use, and an environmentally friendly effect.
To achieve the above purpose, the present invention is a hollow light-collecting device, comprising a core hollow; a first layer located on and around the core hollow; a second layer located on and around the first layer; and a third layer located on and around the second layer, where the first layer is made of a light-weight transparent material; the second layer is made of a high-reflection metal adhesive material; and the third layer is made of a light-weight transparent material or a high-reflection metal adhesive material. Accordingly, a novel hollow light-collecting device is obtained.
The present invention will be better understood from the following detailed descriptions of the preferred embodiments according to the present invention, taken in conjunction with the accompanying drawings, in which
The following descriptions of the preferred embodiments are provided to understand the features and the structures of the present invention.
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The core hollow 10 is located at center of the present invention 1 and is made in a form of a frustum, such as a circular frustum or a polygonal frustum.
The first layer 11 is located on and around the core hollow 10 and is made of a light-weight transparent material, such as polymethylmethacrylate (PMMA), acrylic, glass, plastic and quartz.
The second layer 12 is located on and around the first layer 11 and is made of a high-reflection metal adhesive material, such as silver glue.
The third layer 13 is located on and around the second layer 12 and is made of a light-weight transparent material, such as polymethylmethacrylate (PMMA), acrylic, glass, plastic and quartz.
Thus, a novel hollow light-collecting device is provided.
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To sum up, the present invention is a hollow light-collecting device, which collects light efficiently, is easily mass-produced at a low cost, is environmentally friendly, and has a long life of use.
The preferred embodiments herein disclosed are not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.
