Hi, allow me using English to reply to your enquiry as it's not convenient for me to type Chinese. #=R) s0 j" =t l[?6 Regarding your question, I would suggest you defining some parameters first before air it out; 'Omi3LXfDT N m- {$U 1. What wavelength(s) are you operating? yv4ki5u` 2. How many components could you use? (any limitation?) ]B0 >r^ 3. Do you prefer using off-shelf lens to customised lens? Or do you have budget for customised lens? haW8zb0z /E(H`;DG There are some examples in ZEMAX ~,yHE3B\G UwY <3ul 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. B M{GSX YMP:T?vMVh hope this helps :)