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rcasiodu:yu-xuegang版主的博客中指出光学系统焦深为:4λ(F/#)²,http://blog.sina.com.cn/s/blog_4f4cc4800100vuyr.html eTay/i<- 根据工程光学书中的公式,如果弥散斑直径取为艾里斑直径的话,焦深应该为2*(2.44λ*F/#)*(F/#)=4.88λ(F/#)²,这是为什么啊? (2012-04-10 18:52) *aFY+.;U`