There are lot, depending on your requirements. Anyway you can try: AN@Vos
Cu ^ ;a[v^&9 1, Refractive: an achromatic as positive + plano-convex as negative; s6B@:9 OR c,@6MeKHq 2, Reflective: two parabolic mirrors; gA6C(##0 H<
j+-u4b Both of them affer nice spherical aberration performance. a;K:~R+@, tz,FK;8 Reminder: compute the laser beam density, ensure you have enough strong optical coating. S~T[*Z/m Y*Pr Good luck.
mywing
2007-01-29 15:48
多谢。因为后面要做干涉用,所以要求双向的像差都小于0.1倍波长。 B !XT:.+ 我用两组小气隙双分透镜得到了很好的结果,但是应该如何保证双分透镜之间的气隙的精度呢?zemax里面显示这个气隙的误差必须小于0.01mm,几乎不可能实现。 ]arP6iN+ 现在考虑用两个双胶合透镜做,据说激光对这种胶的损伤阈值比较低,不过幸好我这里用的激光也是比较弱的。 ,O}zgf*H; 哪位知道双胶合透镜上用的这种胶对应1064nm激光的损伤阈值是多少?
mang2004
2007-01-29 19:54
Hi, rZLMYM 0^+W"O The following is a link of technical data of optical adhesives, hope it be helpful: i|t$sBIh W/ERqVZR] http://www.lienhe.com.cn/uvadh/NOA60.htm m*1=-"P C<3An_Dy Double check from your lens vendor waht type of adhesive they use for your cemented doublet. ^#nAS2w7U 'G&w[8mqY It is OK to use the spaced doublet design as a backup, if so, please pay a lot attention on the opto-mechanical design and assembling. b{A#P? FGC[yz1g: Again, good luck.