Patent ID: 6857426

Claim:
An absorber element for solar high-temperature heat generation, having a light focusing unit, an outer tube composed of a translucent material and an absorber which is arranged in the outer tube and to which solar rays are passed by the light focusing unit, wherein the absorber is surrounded by at least one reflector channel, whose surface has a low emission and absorption capability, and which reflects heat radiation which originates from the absorber back to the absorber; a focal line of the light focusing unit lies on a center axis of the outer tube, and the absorber does not lie on the center axis of the outer tube; an opening gap in the at least one reflector channel lies on the center axis of the outer tube and the solar rays fall on the absorber through this opening gap; and the absorber includes an absorber tube, through which a heat carrier medium circulates, and absorber plates which are mounted on the absorber tube, and with the absorber plates being curved such that they essentially completely absorb the solar rays which are incident on them through the opening gap.