| 摘要 |
PROBLEM TO BE SOLVED: To produce a low-reflection glass having an excellent surface low- reflection function and self-cleaning function capable of maintaining both functions for a long time and capable of keeping the low-reflection by making a soil such as finger mark and sweat always inconspicuous. SOLUTION: A thin film layer having a refractive index (n1 ) of 1.78-2.30 and a film thickness (d1 ) of 20-120nm is formed on at least one side surface of a transparent glass substrate as the first layer on the side of the glass, then the thin film layer having the refractive index (n2 ) of 1.46-1.90 and the film thickness (d2 ) of 40-120nm and dispersed with TiO2 fine particles having an optically active function is laminated on the first thin film layer as the second layer, and the refractive indexes satisfy (n1 )>(n2 ). |
