Patent ID: 8208197

Claim:
An optical film comprising: a filmy support that comprises a polymer having an alicyclic structure; an ultraviolet absorbing layer on the filmy support; and a hardcoat layer, wherein the ultraviolet absorbing layer has a beam transmittance of 5% or less in a wavelength region of 200 to 340 nm and comprises at least one ultraviolet absorbent which is a polymer particle, the polymer particle comprises a compound having an absorption capability in an ultraviolet region of 200 to 340 nm, the ultraviolet absorbent has a benzotriazole-based mother nucleus, a benzophenone-based mother nucleus, a phenyl salicylate-based mother nucleus, or a triazine-based mother nucleus, and wherein the alicyclic structure is in a repeating unit of the polymer, and a proportion of the repeating unit having the alicyclic structure in the polymer is 50 mass % or more.