| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material having sufficient antireflection performance with only a single layer of an antireflection film. <P>SOLUTION: A hardened film made of a composition comprising a compound having at least two (meth)acryloyloxy groups in a molecule or its oligomers and porous fine particles is formed on the surface of the transparent base material. As for the porous fine particles, silica fine particles are preferable, or surface-coated silica having a double structure or a compound oxide containing silica is also effective. By forming the hardened film with 1.20 to 1.45 refractive index and 0.01 to 1 μm film thickness, the film functions as an antireflection film. <P>COPYRIGHT: (C)2003,JPO |
