A light source system in which light scattered inside a chamber (2) exits from a hole (3) to provide a light output from the system. The interior wall of the chamber (2) consists of a material which is very efficient at scattering incident light. Light emitted from a light source (1) undergoes at least...http://www.google.se/patents/US6422718?utm_source=gb-gplus-sharePatent US6422718 - Non-imaging light source for uniform illumination applications
