| sansummer |
2011-06-28 10:55 |
请问谁知道国际光学图纸这个标注什么意思？
Surface quality: 60-40 }"&n[/ 8~
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The surface marked R1 is conic surface (aspheric surface) with folowing equation: _o &,
Y^2=2 R1_0 X - (1- e^2) X^2 where R1_0 = -10.700B0.010 & e^2 = 0.060B0.003 H;TOPtt2
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The surface marked R2 is conic surface (aspheric surface) with folowing equation: %67G]?EXB
Y^2=2 R2_0 X - (1- e^2) X^2 where R2_0 = 13.698B0.013 & e^2 = 0.106B0.003 [Q7->Wo|S:
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还有下面这个图 VeNNsg>&
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[attachment=34561] _q$0lqq~u
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里面的半径公差给了，但是咱们国家标准一般使用光圈来表示，如何换算呢？ ~>N`<S
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下面的小格子里都是什么意思啊 b[{m>Fa+o#
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谢谢
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