The invention relates to a composition for the volumetric generation of radiation. The composition comprises a porous substrate loaded with a component capable of emitting radiation upon interaction with an exciting radiation. Preferably, the composition is an aerogel substrate loaded with a component,...http://www.google.es/patents/US5306445?utm_source=gb-gplus-sharePatente US5306445 - Inorganic volumetric light source excited by ultraviolet light
Inorganic volumetric light source excited by ultraviolet light
