| abstract |
PROBLEM TO BE SOLVED: To provide an optical element provided with a low refractive index antifogging antireflection film having a self-cleaning effect capable of decomposing and removing adhered dirt without touching the film. An optical element having an antireflection film on a substrate surface, wherein the antireflection film has at least one nanoporous silica film, and the nanoporous silica film has a photocatalytic action with organically modified silica. An optical element comprising: and a method for manufacturing the same. [Selection] Figure 1 |