| Milbond | |
1# | 2# | |
Surface figure error before bonding (λ) | 0.013 | 0.015 |
Surface figure error one month after bonding (λ) | 0.035 | 0.036 |
Surface figure error after 24 h vacuum deflating at room temperature (λ) | 0.034 | 0.034 |
Surface figure error after three thermal cycles test (λ) | 0.085 | 0.097 |