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| red5468863 | 2019-02-26 10:28 |  
| 关于红外准直,请各位前辈指点一下小白
刚刚开始学习,老师让做一个20m的红外准直,波段在3.7~8 um,要求准直光线全程直径不超过6~10 mm uM_# 现在我这做出个样子,但是不知道透镜厚度怎么取,mtf感觉看着也很怪,希望各位前辈给点建议,多多指教 bKrhIU[
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