| hupoke |
2012-02-03 14:53 |
多谢2L回复，您指的应该是这段吧 j-~x==c-;
“On axis, the spot is much smaller than the Airy Disk, while off axis the spot is much larger than the Airy Disk. This indicates the spot diagram is a useful and reasonable indicator of performance off axis only. To compute a more accurate PSF both on and off axis, a consideration of diffraction will be required. Lzr&Q(mL
e> F i
Generally speaking, the spot diagram is useful if the aberrations are large compared to the diffraction limited performance of the system.”
b#uNdq3
#%Hk-a=>)#
我大概晓得了，多谢帮助！待我把您给的这篇看完，有问题再来问：）
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谁给解释一下吧。是不是RMS半径接近艾里斑半径就说明达到衍射极限了呢