A new solar cell cover comprises a substrate that transmits the spectral region to which the solar cell responds and a multilayer infrared-reflecting coating which incorporates means for suppressing low order reflections. The multilayer coating may also contain ultraviolet or blue coatings and be formed...http://www.google.es/patents/US5449413?utm_source=gb-gplus-sharePatente US5449413 - UV/IR reflecting solar cell cover
