An apparatus for separating solar radiation into a longer wavelength component and a shorter wavelength component includes a concentrator of solar radiation, the concentrator having a focal point F.sub.1, and a mirror for selectively reflecting either the longer or the shorter wavelength component of...http://www.google.fr/patents/US5973825?utm_source=gb-gplus-shareBrevet US5973825 - Production of hydrogen from solar radiation at high efficiency
Production of hydrogen from solar radiation at high efficiency
