菲涅耳(Augustin Jean,1788-1827,法国物理学家)
网络 菲涅耳; 菲涅尔; 菲涅尔镜
Fresnel lens on the top.
塔顶的菲涅尔透镜。
A method of making the Fresnel lens is described.
本文还描述了制造菲涅耳透镜的方法。
The final testing results of the Fresnel optical lens are given.
给出了研制成功大型菲涅耳透镜的光学检测结果。
In 1818 Fresnel entered a competition sponsored by French academy.
1818年菲涅耳参加了法国科学院主办的一次竞赛。
Fresnel lens on the top. Thickness and quality of the glass are impressive.
塔顶的菲涅尔透镜。透镜的厚度和质量令人印象深刻。