Hi, allow me using English to reply to your enquiry as it's not convenient for me to type Chinese. hPl;2r tW(E\#!|p< Regarding your question, I would suggest you defining some parameters first before air it out; 6rk/74gI,a v<O \ l~S 1. What wavelength(s) are you operating? 8`*(lKiL 2. How many components could you use? (any limitation?) Vi]D](^! 3. Do you prefer using off-shelf lens to customised lens? Or do you have budget for customised lens? iGR( 8ciLzyrY* There are some examples in ZEMAX f+d{^- 371E S4 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. x x%WIY:} i+2J\.~U#G hope this helps :)