Hi, allow me using English to reply to your enquiry as it's not convenient for me to type Chinese. * +"9%&? ^c^#dpn Regarding your question, I would suggest you defining some parameters first before air it out; 4dO~C '8!Y D?n 1. What wavelength(s) are you operating? lDYyqG4 2. How many components could you use? (any limitation?) VUPXO 3. Do you prefer using off-shelf lens to customised lens? Or do you have budget for customised lens? zNxW'?0Z? xv(9IEjt0 There are some examples in ZEMAX 1I C~e ^" -likj# Z 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. YQHw1 Ta(Y:*Ri hope this helps :)