Reflecting apparatus including enhanced aluminum optical coatings

摘要

A multi-reflector lighting apparatus including a reflector having a reflecting layer deposited on a base layer. The multi-reflector lighting apparatus further includes a first oxide layer deposited on the reflecting layer. The multi-reflector lighting apparatus further includes a second oxide layer deposited on the first oxide layer. The multi-reflector lighting apparatus further includes an alternating plurality of a relatively low refractive index oxide layer material and a relatively high refractive index oxide layer material deposited on the second oxide layer.

主权项

1. A reflector lighting apparatus, comprising:
an LED array light source; a reflector having a aluminum reflecting layer deposited on a base layer; and a thin-film layered stack positioned directly adjacent the aluminum reflecting layer, wherein the thin-film layered stack includes an even number of layers of 26 or more layers; the thin-film layered stack comprising:
a first oxide layer deposited on the aluminum reflecting layer;a second oxide layer deposited on the first oxide layer; andan alternating plurality of a relatively low refractive index oxide layer material and a relatively high refractive index oxide layer material deposited on the second oxide layer;wherein the first oxide layer comprises a relatively high refractive index oxide material, and wherein a final layer of the thin-film layered stack comprises a relatively low refractive index oxide material.