Refractor-reflector radiation concentrator - uses components in co-operation to focus solar radiation from linear echelon and obtain high heat flux

摘要

The small-area focus solar concentrator comprises a linear echelon refractor and a linear echelon reflector. The increments of the refractor are crossed at approximately 90 deg. to the increments of the reflector. The refractor and reflector cooperate to focus solar radiation incident on the front surface of the refractor to a small area focus in front of the refractor. The refractor-reflector structure permits relatively low cost, high power concentrators using refractor-reflector matrices. Also, the structure can be used to focus normal or non-normal incident radiation outside the path of the radiation to reduce or eliminate blockage of the radiation by an absorber located at the focus.