主要特点：
● 全口径波前最大变形量: 60 μm PV，可修正大尺度波前畸变
● 相邻驱动单元间波前型变量: 3 μm，可修正高空间频率波前畸变
● 速度快: 设置时间可达 0.7 ms within ±5%.
● 线性度高: >97%
规格指标：
| DM69 | DM88 | DM97-08 | DM97-15 | DM241 | DM277 | DM468 | DM820 |
| Number of actuators | 69 | 88 | 97 | 97 | 241 | 277 | 468 | 820 |
| Pupil diameter (mm) | 10.5 | 20.0 | 7.2 | 13.5 | 37.5 | 24.5 | 33.0 | 45.0 |
| Pitch (mm) | 1.5 | 2.5 | 0.8 | 1.5 | 2.5 | 1.5 | 1.5 | 1.5 |
| Mirror best flat (RMS)(1) | 7.0 nm |
| Wavefront tip/tilt stroke (μm PV) | 60 | 35 | 80 | 60 | 25 | 15 | 15 | 15 |
| Wavefront inter-actuator stroke | > 3.0 μm PV |
| Wavefront 3×3 stroke (μm PV) | > 25 | > 15 | > 25 | > 25 | > 25 | > 10 | > 10 | > 10 |
| Setting time (ms @±5%) | 1.0 | 2.0 | 2.0 | 1.0 | 2.0 | 0.7 | 0.7 | 0.7 |
| Bandwidth (Hz)(2) | > 750 | > 400 | > 400 | > 750 | > 400 | > 2000 | > 2000 | > 2000 |
| Typical AO loop frame rate (kHz) | <7.5 | <4.0 | <4.0 | <7.5 | <4.0 | <10.0 | <10.0 | <10.0 |
| Hysteresis error | < 1% |
| Non-linearity error | < 3% |
| Coating(3) | Protected Silver |
| Operating temperature(4) | 10~35°C |
