| 摘要 |
Provided is a glass substrate having excellent anti-reflection performance. A glass substrate of which at least one surface has multiple concave and convex portions, wherein the Rp representing the size of the convex portion is from 37 nm to 200 nm; a tilt angle ¸p indicating a maximum frequency in the frequency distribution of a tilt angle ¸ of the convex portion is from 20° to 75°; and in a case where ¸ 50 indicates a value showing 50% of a cumulative frequency distribution of the tilt angle ¸, an absolute value of a difference between ¸p and ¸ 50 (¸p - ¸ 50 ) is 30° or less, and the concave and convex portion is such that a surface roughness (Ra) thereof is from 2 nm to 100 nm, a maximum height difference (P-V) thereof is from 35 nm to 400 nm, and an area ratio (S-ratio) thereof, as calculated by dividing an area containing the concave and convex portion by an inspection area, is from 1.1 to 3.0. |
