半影发光体(非光源)所发出光线部分被非透明物体阻挡后,在屏幕(或其他物体)上所投射出来的,本影周围较暗的区域。 此处发光体的光线部分被物体阻挡,而有部分乃至微弱的光线到此。

Thumb Thumb

参见

Wikiwand in your browser!

Seamless Wikipedia browsing. On steroids.

Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.

Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.