A light diffusing tip is provided. The light diffusing tip comprises a housing and a monolithic light scattering medium disposed within the housing. The monolithic light scattering medium comprises a first scattering region at a first position, the scattering region having a first scattering property...http://www.google.ca/patents/US7274847?utm_source=gb-gplus-sharePatent US7274847 - Light diffusing tip
