Fresnel lens
Fresnel lens是什么意思、Fresnel lens怎么读
【计】 菲涅耳透镜
Fresnel lens汉语翻译
【计】 菲涅耳透镜
Fresnel lens英语解释
名词 fresnel lens:
- lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length