Patent ID: 6212004
Filing Date: 2001-04-03
Classification: F21V,G02B,H01J

Abstract:
In a reflector for use with a lamp secured therein, said reflector formed of a transparent substrate having interior and exterior surfaces, said reflector including a first optical interference coating applied to said interior surface, said optical interference coating operable to reflect visible light while transmitting infra-red radiation through said reflector substrate from electromagnetic energy emanating from said lamp, wherein the improvement comprises a second coating applied to a predetermined portion of at least one of said exterior and interior surfaces, said second coating being substantially nontransmissive to infra-red radiation, the reflector including a main body portion and a neck portion each having interior and exterior surfaces, said second coating being applied to at least part of one of said interior and exterior surfaces of said main body portion, and the main body portion being in the shape of a dome, and wherein said second coating is applied in concentric rings about the full circumference of said dome.