Surface quality: 60-40
&wj Ob jXdn4m/O The surface marked R1 is conic surface (aspheric surface) with folowing equation:
fY `A Y^2=2 R1_0 X - (1- e^2) X^2 where R1_0 = -10.700B0.010 & e^2 = 0.060B0.003
#2dmki"~( Fb*;5VNU. The surface marked R2 is conic surface (aspheric surface) with folowing equation:
[;b9'7j' Y^2=2 R2_0 X - (1- e^2) X^2 where R2_0 = 13.698B0.013 & e^2 = 0.106B0.003
' ZB%McS nQgn^z# 还有下面这个图
J d`NS3;*p c9&
8kq5 
<&NR3^Eq 65}:2l2< 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？
o 1b#q/
W i|.Z/ 下面的小格子里都是什么意思啊
9 (&!>z 4bK Z@r% 谢谢
