| 摘要 |
An optical component is produced by forming an anti-reflection film on a surface of a molding of a norbornene resin having a polar group. The anti-reflection film is composed of an equivalent film of which the overall refractive index as calculated according to a prescribed formula is 1.52 to 1.8 and that has an intermediate layer measuring 10 to 50 nm in mechanical film thickness and containing Al2O3, a first high-refractive-index layer, and a first low-refractive-index layer containing SiO2 as a main ingredient, a second high-refractive-index layer measuring 0.4lambd to 0.6lambd (where lambd is 480 to 550 nm) in optical film thickness and containing TiO2 as a main ingredient, and a second low-refractive-index layer measuring 0.2lambd to 0.3lambd in optical film thickness and containing SiO2 as a main ingredient. This ensures that the anti-reflection film adheres to the surface of the molding so strongly as not to exfoliate therefrom.
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