| 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 }k.Z~1y 7B66]3v The surface marked R1 is conic surface (aspheric surface) with folowing equation: ysY*k` 5 Y^2=2 R1_0 X - (1- e^2) X^2 where R1_0 = -10.700B0.010 & e^2 = 0.060B0.003 R0*|Lo$6 6.yu-xm The surface marked R2 is conic surface (aspheric surface) with folowing equation: ]:J$w]\ Y^2=2 R2_0 X - (1- e^2) X^2 where R2_0 = 13.698B0.013 & e^2 = 0.106B0.003 "fOV^B jAlv`uB|G" 还有下面这个图 |+D!=
:x R.<g3"Lm> [attachment=34561] b@hqz!)l` #&e-|81H 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? 5'u<iSmBo b^vQpiz 下面的小格子里都是什么意思啊 jq0O22
-R 5L}/&^E#p 谢谢
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