Patent ID: 7670673

Claim:
A heat-resistant, light-shielding film comprising a heat-resistant resin film base (A) resistant to 200° C. or higher, coated, on one or both sides, with an Ni-base metallic film (B) by sputtering and then with a low-reflectivity film (C) of Ni-base oxide also by sputtering, and having a surface roughness of the low-reflectivity film (C) (arithmetic average height Ra) of 0.1 to 0.7 μm, wherein the resin film base (A) is of at least one species of resin selected from the group consisting of polyimide, aramid, polyphenylene sulfide and polyether sulfone, and has a surface roughness (arithmetic average height Ra) of 0.2 to 0.8 μm, wherein the Ni-base metallic film (B) comprises nickel as the major ingredient incorporated with at least one additive element selected from the group consisting of titanium, tantalum, tungsten, vanadium, aluminum and copper, wherein the Ni-base oxide film (C) comprises nickel as the major ingredient incorporated with at least one additive element selected from the group consisting of titanium, tantalum, tungsten, vanadium, aluminum and copper, and wherein the Ni-base metallic film (B) is 30 to 280 nm thick, and the Ni-base oxide film (C) is 5 to 250 nm thick.