This invention relates to a light transmitting filter comprising (a) light absorbing layer having a first and second surface, (b) microspheres embedded in the light absorbing layer and (c) an optically clear, substantially uniform, conformable layer covering the microspheres, wherein the microspheres...http://www.google.fr/patents/US6600599?utm_source=gb-gplus-shareBrevet US6600599 - Rear projection screens and light filters with conformable coatings and methods of making the same
Rear projection screens and light filters with conformable coatings and ...