Zöllner illusion
/ˈtsɔːlnə/plural noun
- an optical illusion in which long parallel lines appear to diverge or converge when crossed by rows of short oblique lines策尔纳视错觉（在与数排短斜线交叉时, 长平行线看似不再平行的视错觉）。
词源
late 19th cent.: named after Johann K. F. Zöllner （1834-82）， German physicist.