ガリレイ式しき望ぼう遠えん鏡きょう

noun

Galilean telescope

A refracting telescope design attributed to Galileo, using a convex objective and a concave eyepiece to produce an upright image.

• ガリレイ式しき望ぼう遠えん鏡きょうは、凸とつレンズと凹おうレンズを組くみ合あわせたシンプルな構こう造ぞうです。

  The Galilean telescope has a simple structure combining a convex lens and a concave lens.