全ぜん反はん射しゃプリズム

noun

total reflection prism

Technical term in optics; a prism that uses total internal reflection to redirect light.

• 全ぜん反はん射しゃプリズムは、光ひかりを90度ど曲まげるのに使つかわれる。

  A total reflection prism is used to bend light by 90 degrees.