Solar energy collecting apparatus

摘要

A non-tracking elongated evacuated tube solar energy collector employing compound parabolic reflectors. An energy absorber is positioned at the focal points of the parabolas and is supported by one or more support members along its length. Each support member is a length of resilient wire in the form of a coil encircling the energy absorber with arms extending from each side of the coil. Each arm bears against the inner walls of the evacuated tube at two spaced-apart contact regions.