棱镜

The prism broke the light into all the colors of the rainbow.

棱镜把分解成虹的各种色彩。

The prelude was as iridescent as a prism in a morning room.

这个序曲就象清晨房间里的一块三棱镜一样灿烂辉煌。

A prism disperses light.

三棱镜可使色。

Many parameters are required to describe their performance, which is transmission ratio, extinctivity ratio, angle of view field, splitting angle, etc.

偏棱镜技术参数较多，透射比、消比、视场角、分束角、长孔径比等。

Instead of the solid block of glass of the prism in pentaprism system, here 3 simple mirrors are used to perform the same task.

五面镜不是用一整个玻璃棱镜，而是用3块镜子相同的目的。

Based on the double refraction principle of outgoing beam in the biprism,the displacement method for measuring the small angle of biprism is presented.The error of this method is also discussed.

利用双棱镜引起出射束方向双向偏折的原理,提出了一种位移法测量玻璃双棱镜微小底角的新方法,介绍了测量的基本原理,讨论了测量误差.