| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical member in which a contamination matter is hard to be visually recognized, and the contamination matter is easily wiped away, even when the contamination matter such as a finger print residues. <P>SOLUTION: An optical member 3 includes a transparent substrate 1, and a protection layer 2 that covers the substrate 1. The protection layer 2 contains hardened matters of an acrylic resin and SiO<SB POS="POST">2</SB>particles having average particle sizes of 50 to 500 nm and dispersed in the hardened matters. The ratio of the SiO<SB POS="POST">2</SB>particles to the protection layer 2 is in a range of 5 to 50 mass%. The thickness of the protection layer 2 is 0.5 μm or more. The contact angle of the surface of the protection layer 2 to oleic acid is 20° or less. The surface roughness Ra of the protection layer 2 is in a range of 20 to 100 nm. The optical member 3 has a haze of 1.0% or less. <P>COPYRIGHT: (C)2013,JPO&INPIT |
