| 摘要 |
PROBLEM TO BE SOLVED: To provide a clock windshield, which has high abrasion resistance and which is less likely to be damaged, even if a clock is mounted for a long period and to provide a structure for the clock using the clock windshield. SOLUTION: In the clock windshield, first oxide layers having a crystal structure and second oxide layers having a crystal structure are laminated alternately repeatedly, and a laminated thin film in which their respective lamination cycles is 1 to 20 nm is formed.
|
