Optical diffuser with uv blocking coating using inorganic...

Details Optical diffuser with uv blocking coating using inorganic... Optical diffuser with uv blocking coating using inorganic...

C - Chemistry, Metallurgy

03

C

C03C 8/14 (2006.01) C03C 17/04 (2006.01) F21V 9/06 (2006.01) G02B 5/02 (2006.01)

Patent

CA 2630257

A diffuser is provided in an illumination system, where the diffuser is capable of blocking significant amounts of ultraviolet (UV) radiation. In certain example embodiments of this invention, the diffuser includes a glass substrate which supports a UV coating(s) that blocks significant amounts of UV radiation thereby reducing the amount of UV radiation which can makes its way through the diffuser. In certain example embodiments, the coating may include inorganic particulate in a frit matrix so that the coating may both diffuse visible light and perform UV blocking.

L'invention concerne un diffuseur utilisé dans un système d'éclairage, ledit diffuseur pouvant bloquer des quantités significatives de rayonnements ultraviolets (UV). Dans certains modes de réalisation de l'invention, à titre d'exemple, le diffuseur comprend un substrat en verre servant de support à un ou plusieurs revêtements anti-UV bloquant des quantités significatives de rayonnements UV, réduisant ainsi la quantité de rayonnements UV pouvant passer à travers le diffuseur. Dans certains modes de réalisation, à titre d'exemple, le revêtement peut comprendre des particules inorganiques dans une matrice frittée, permettant ainsi au revêtement à la fois de diffuser la lumière visible et de bloquer les UV.

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