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应用于红外测温或红外成像或监控、遥测等光学系统 |
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技术要求 |
公差要求 |
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直径公差 |
16.5-0.1mm |
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厚度公差 |
1.8土0.1mm |
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中心偏差 |
±3´ |
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表面质量 |
60-40 |
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表面精度 |
1.0λ |
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镀 膜 |
8-12μm T >97% |
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倒 边 |
0.1-0.5mm*45° |
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材 料 |
单晶锗 |
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直径mm |
焦距mm |
半径mm |
中心厚度mm |
边缘厚度mm |
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16.5 |
20 |
60 |
1.8 |
1 |
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20/25.4 |
25.4 |
76.3 |
3.1 |
2.0 |
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20/25.4 |
50 |
150.3 |
4.0 |
3.5 |
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20/25.4 |
75 |
225.5 |
4.0 |
3.6 |
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20/25.4 |
100 |
300.7 |
1.8 |
1.5 |
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20/25.4 |
150 |
451.0 |
4.0 |
3.8 |
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20/25.4 |
200 |
601.4 |
4.0 |
3.9 |
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20/25.4 |
500 |
1501.9 |
2.1 |
2.0 |
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20/25.4 |
750 |
2252.9 |
2.0 |
2.0 |
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20/25.4 |
1000 |
3303.9 |
2.0 |
2.0 |
