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 ?b,x;hIO Ocp`6Fj The surface marked R1 is conic surface (aspheric surface) with folowing equation: q; n Y^2=2 R1_0 X - (1- e^2) X^2 where R1_0 = -10.700B0.010 & e^2 = 0.060B0.003 W[R^5{k` FD*)@4<o The surface marked R2 is conic surface (aspheric surface) with folowing equation: qx;8Hq(E[ Y^2=2 R2_0 X - (1- e^2) X^2 where R2_0 = 13.698B0.013 & e^2 = 0.106B0.003 JK/VIu&! vTk\6o q 还有下面这个图 M#CYDEB gAPD
y/wM [attachment=34561] Y;uQq-C P OBm#E} 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? "rJJ~[Y 1v
M'yr$ 下面的小格子里都是什么意思啊 EG&97lb 9()d7Y#d/` 谢谢
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