Solar collector

A solar collector comprising:

• a central, elongate conduit for fluid;
• a laterally concave, elongate reflective surface facing the central conduit, the central conduit extending centrally along the laterally concave surface, said surface having a shape to reflect solar radiation onto the channel conduit and two outer, longitudinal edges;
• a central, elongate reflective fin connected to the central conduit and extending away from the laterally concave reflective surface, the central fin having a shape to reflect solar radiation striking the central fin onto the central conduit;
• two side conduits for fluid, each said side conduit extending longitudinally near one said outer longitudinal edge of said laterally concave surface;
• two side reflective surfaces, each said side reflective surface extending away from one said outer edge of the laterally concave surface, facing one said side conduit, and having a concave shape to reflect solar radiation that strikes said each side surface onto one said side conduit;
• and
• two side fins, each said side fin being connected to one said side conduit and extending away from the laterally concave surface, each said side fin having a concave, reflective surface for reflecting solar radiation that strikes each side fin onto said one side conduit.