| 摘要 |
An anti-glare film which has concave-convex parts in its surface, has a reflectance R (30) at a reflection angle of 30° of 0.04 to 0.2%, a reflectance at a reflection angle of 40° of 0.005 to 0.02% and a reflectance at a reflection angle of 50° of 0.0015% or less for a 30° incident light, and satisfies any one of the following requirements (1) to (7): (1) the R(35)/R(30) ratio is 0.4 to 0.8 wherein "R(35)" represents a reflectance at a reflection angle of 35°; (2) the concave-convex surface has an arithmetic average height Pa of 0.09 to 0.21 µm; (3) the concave-convex surface has a maximum section height Pt of 0.5to 1.2 µm; (4) the concave-convex surface has an average length PSm of 12 to 20 µm; (5) the peak in an elevation histogram for individual points on the concave-convex surface lies within the range of ±10% from the height 50% as the center; (6) there are 150 to 350 convex parts per area of 200 x 200 µm; and (7) a polygon of Voronoi tessellation which has the top of the convex part defined as a site has an average surface area of 100 to 300 µm<SUP>2</SUP>. |
