| 摘要 |
PURPOSE: A high efficiency sun light concentration system is provided to improve concentrating ability by using a combined lens which utilizes a convex lens and a concave lens. CONSTITUTION: A convex lens (142) is adhered to the inside of pipe. A concave lens (144) is adhered in the lower part of the convex lens with a distance from thereof. The refracting prism (150) is installed in the center of a fixing support ring (200) which has constant radius. The fixing support ring is installed with constant intervals from the concave lens. A protective mesh is adhered in the internal space of the fixing support ring. |
