Patent ID: 7258908
Filing Date: 2007-08-21
Classification: G02B,Y10S,Y10T

Abstract:
1. An anti-glare film having a rough surface of which R (0) is 1% or less, and R (30 or more)/R (0) is 0.001 or less, wherein R (0) is the regular reflectance along the regular reflection direction against incidence light at any angle from 5 to 30° from the normal line of said anti-glare film and R (30 or more) is the reflectance against said incidence light, along a direction inclined by 30° or more toward said anti-glare film side from said normal reflection direction, and wherein the roughness of the surface is divided into unit cells having a plurality of irregularities, the average value of a minimum distance between peaks of said irregularities is from 14.7 μm to 200 μm, and the irregularities constituting mutual translational symmetry with irregularities in other unit cells.