Surface quality: 60-40
rM'=_nmi G:~k.1y[ The surface marked R1 is conic surface (aspheric surface) with folowing equation:
=c/wplv* Y^2=2 R1_0 X - (1- e^2) X^2 where R1_0 = -10.700B0.010 & e^2 = 0.060B0.003
$5Xh,DOg D6>HN[D" The surface marked R2 is conic surface (aspheric surface) with folowing equation:
$STaQ28C Y^2=2 R2_0 X - (1- e^2) X^2 where R2_0 = 13.698B0.013 & e^2 = 0.106B0.003
{
^cV lC_ >-H {Z{VDd 还有下面这个图
S H! 0NS<?p~_S 
bbrXgQ`s+w 0q&<bV:D 里面的半径
公差给了，但是咱们国家
标准一般使用
光圈来表示，如何换算呢？
.zi_[ u(fm@+$^ 下面的小格子里都是什么意思啊
W[Ls|<Q 28 ?\ 谢谢
