Compared with the real edge generated when parallel beam illuminates an object, the virtual edge between bright and dark areas in the phenomenon of total reflection is more complex.

和平行光照射遮光物体产生的实边缘相比，全反射现象中半明半暗视场的分界线处的虚边缘情况更为复杂。

youdao

Compared with the real edge generated when parallel beam illuminates an object, the virtual edge between bright and dark areas in the phenomenon of total reflection is more complex.

和平行光照射遮光物体产生的实边缘相比，全反射现象中半明半暗视场的分界线处的虚边缘情况更为复杂。

youdao