| abstract |
An object of the invention is to provide an optical film having thermochromic properties capable of regulating the near-infrared shield factor depending on the temperature environment, having a low haze value, and having excellent cracking resistance and adhesiveness even if put to use for an extended period of time, and a method for manufacturing the optical film. The optical film of the invention includes, on a transparent substrate, an optically functional layer containing at least vanadium dioxide-containing fine particles and a binder resin, wherein the number average particle size of all the particles including primary particles and secondary particles of the vanadium dioxide-containing fine particles in the optically functional layer is less than 200 nm. |