Patent ID: 7435898

Claim:
A solar energy utilization unit comprising a solar radiation concentrating optics and a solar radiation receiver including first and second receiver components, the first receiver component being designed to convert into electric energy radiation in a first part of the solar spectrum, and the second receiver component being designed to convert into electric energy radiation in a second part of the solar spectrum different from said first part, said solar radiation concentrating optics comprising a concave primary reflector and a convex secondary reflector, the primary reflector being adapted to reflect incident solar radiation towards the secondary reflector, the secondary reflector being adapted to reflect radiation in said first part of the solar spectrum into said first receiver component and to transmit radiation in the second part of the solar spectrum into the second receiver component, said primary reflector being formed with a centrally disposed opening via which said first receiver component is adapted to receive the radiation reflected by said secondary receiver, wherein said solar utilization unit further comprises a cover formed with an aperture adapted to receive therein said second receiver component and said secondary reflector, such that said second receiver component extends outwardly from said cover and said secondary reflector extends inwardly from said cover towards said primary reflector.