concave-lens

英 ['kɒŋkeɪvl'enz] 美 ['kɒŋkeɪvl'enz]

• 凹透镜

concave-lens的英文翻译是什么意思，词典释义与在线翻译：

英英释义

名词 concave lens:

1. a lens such that a parallel beam of light passing through it is caused to diverge or spread out