Hi, allow me using English to reply to your enquiry as it's not convenient for me to type Chinese. BG)zkn$ wkx #WC Regarding your question, I would suggest you defining some parameters first before air it out; .JTRFk{W .3jijc j 1. What wavelength(s) are you operating? 1r*yYm' 2. How many components could you use? (any limitation?) 9G"4w` P 3. Do you prefer using off-shelf lens to customised lens? Or do you have budget for customised lens? F_i"v5# P[$idRS& There are some examples in ZEMAX Mn3j6a }}u`*&,g Under Program Files\ZEMAX\Samples\Sequential\Objectives, you should be able to find some examples. I believe that with properly selection of variables you should be able to achieve an optical solution for the performance target you specified. MiKq| M,yxPHlN hope this helps :)