| 摘要 |
PROBLEM TO BE SOLVED: To provide an antireflection article related to a moth-eye structure that improves scratch resistance more than before and that also improves optical characteristics.SOLUTION: An antireflection article is provided in which: very small protrusions are closely arranged; and the distance between the adjacent very small protrusions is equal to or lower than a minimum wavelength in a wavelength band of electromagnetic waves prevented from reflecting. The very small protrusions are multi-peak very small protrusions having a plurality of peaks and single-peak protrusions having single peaks. In the distribution of the distances between the adjacent very small protrusions, an average value, a standard deviation, and the total number of samples are respectively P, &sgr;, and Nt. The number of samples is Ns 1, in the case that the very small protrusions are within a range P±&sgr; displaced from the average value by only the standard deviation and at least one of the two very small protrusions related to the distances between the very small protrusions is the multi-peak very small protrusion. The number of samples is Ns 2, in the case that the very small protrusions are out of the range P±&sgr; and at least one of the two very small protrusions related to the distances between the very small protrusions is the multi-peak very small protrusion. In these cases, a ratio Ns 1/Nt is larger than a ratio Ns 2/Nt. |
