| 摘要 |
The system has a radiator, and a number of convex lenses. These are arranged so that the focal points or focal planes of the lenses for the sun's rays (30) lie on the outer surface of the radiator or have an adjustable distance from this surface. The lenses are plastics and are installed inside a plate, and with the plate may form a one-piece lens body. The lenses or lens plate are covered on the outside by a protective plate which can be penetrated by the sun's rays. |
