There are lot, depending on your requirements. Anyway you can try: Fm[?@Z&wP ]mJAKycE% 1, Refractive: an achromatic as positive + plano-convex as negative; Do[ F+Y OR {*5;:QnT 2, Reflective: two parabolic mirrors; ytBxe] 7Hr4yh[j& Both of them affer nice spherical aberration performance. sP8-gkkor NdED8 iRc Reminder: compute the laser beam density, ensure you have enough strong optical coating. @gl%A&a |0vHy7CE 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。 7$d c?K 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。 \SH D 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。 '\E*W!R.] 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, Z=/L6Zb |EEz>ci The following is a link of technical data of optical adhesives, hope it be helpful: BQfAen] F+m4 http://www.lienhe.com.cn/uvadh/NOA60.htm TAXkfj R;-FZ@u/ Double check from your lens vendor waht type of adhesive they use for your cemented doublet. [{!j9E?( Er+3S@sfq, 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. I9j+x]) Ai_|) Again, good luck.
sagl104
2007-03-09 17:47
能不能说中文?!我头晕.
风铃草
2007-04-04 22:47
如果你用的是1064的激光,那么采用双胶合并不是一个明智的方案,除非真正能解决胶的问题,你的能量有大?采用双胶合,你考虑过没有它的可靠性? "E[*rnsLN 如果ZEMAX对系统的公差分析,精度要求控制在1u,那么你就应该放弃这样的方案。 SIBIh- L 这类系统我也做过,没有遇到你这种情况,“要求正向使用(扩束)和反向使用(缩束)时产生的像差相同”-