Patent ID: 7919192

Claim:
A multi-layered film structure, comprising: a resin substrate of a reflector portion; at least one first metal film formed adjacent the resin substrate of the reflector portion; and at least one stainless steel-based material formed adjacent the resin substrate of the reflector portion, wherein the at least one first metal film is composed of an aluminum-based material having a film thickness ranging from substantially 0.7 nm to 20 nm, wherein the at least one stainless steel-based material having a film thickness ranging from substantially 1 nm to 20 nm, wherein the multi-layered film structure, being formed on the resin substrate of the reflector portion, includes alternating layers of the at least one first metal film and the at least one stainless steel-based material and wherein a thickness of the stainless steel-based material is greater than that of the first metal film.