1) circular blur effect
环状暗斑效应
1.
Light field circular blur effect on liquid surface and refraction index measurement;
液体表面光场环状暗斑效应及折射率测量
2) ring scotoma
环状暗点
3) urban dark island effect
暗岛效应
4) dulling effect
暗晦效应
5) dimming effect
暗淡效应
6) twilight efficiency
昏暗效应