There are lot, depending on your requirements. Anyway you can try: NfS0yQPx =F8uuYX%m 1, Refractive: an achromatic as positive + plano-convex as negative; '-gk))u>) OR "t`r_Aw 2, Reflective: two parabolic mirrors; d*8 c,x esbxx##\ Both of them affer nice spherical aberration performance. k/!Vv#8 VLu_SXlo* Reminder: compute the laser beam density, ensure you have enough strong optical coating. z15(8Y@2] C[? itk! 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。 :#c? `>uV 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。 SM![ yC 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。 Af
^6 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, BAdHGwomh "{qhk{ The following is a link of technical data of optical adhesives, hope it be helpful: r"Pj,}$A 2~ Gcoda http://www.lienhe.com.cn/uvadh/NOA60.htm XV).
cW|.a |C7GI[P Double check from your lens vendor waht type of adhesive they use for your cemented doublet. J>]' {!+ } 9<aX
Y, 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. u)R>ozER NVeb,Pf Again, good luck.