The solar absorber is equipped with an absorber body (10) that absorbs incident solar energy (12) and converts it to heat. The absorber body has a selective absorption layer (17) on a side (36) oriented toward the concentrator (13) and another selective absorption layer (18) on an opposite side (38)...http://www.google.fr/patents/US7607428?utm_source=gb-gplus-shareBrevet US7607428 - Solar absorber
