Solar collector, preventing energy losses by reflection - in which collector surface is covered by lenses focussing through reflector apertures

摘要

A solar collector comprises an absorber provided with heat transferring and transporting units, and a shielding unit for covering the absorption surface. Above the absorber a large number of collecting lenses are assembled in and/or on a support unit. The lenses are spherical and for pref. cover the surface in honeycomb fashion, or they may be cylindrical and be arranged in rows. Between the absorption surface and the less support unit, a layer for reflecting the radiation is arranged parallel to and close to the support unit. Apertures are provided in the reflecting layer, positioned in such a way that the light rays focussed by the collector lenses, pass through them. Device overcomes the problem of the reflection of energy by the collector and ensures an optimal conversion of the radiation reaching it, without expensive measures.