| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical disk in which an adhesive can be surely cured by increasing the transmitted amt. of UV rays and durability of the film thickness can be improved. SOLUTION: Reflection films 2, 2 are formed on two transparent substrates 1, 1 having signals. The substrates 1, 1 with the signals are laminated with an adhesive 4 with the reflection films 2, 2 facing each other. The reflection film 2 consists of an aluminum alloy and is formed to have the thickness >425 Åand <500 Å. |
