| 摘要 |
PURPOSE:To execute indoor illumination by use of solar light, or to utilize effectively solar head, by using hemispherical glass as a double lens, combining a hemisphere of heat resisting glass in the middle, and filling ion gas in the inside. CONSTITUTION:A biconvex lens 1, a different diameter length band lens 2 of an upper and lower 2-stage stack system, and a protecting glass hemisphere 3 can be divided into 2-4. A space tank between the band lens 2 and the glass hemisphere 3 is filled with gaseous argon. By gaseous argon, strain of ultra-low temperature is prevented. As for the inside floor and the side, the heat loss is prevented by inserting a heat insulating material. By a lens 4, the focus is enlarged. A ring lens 5 is shaped like a triangular cone and the secondary focus is sent to a prism photodetecting globe. A protecting covering material 7 is used so that light does not leak. By a glass rod or a glass fiber 9, light is transferred to a projecting globe 13 and a lens dispersing globe 14. |
