The Laser Angle sensor consists of a blockprism and a hologram grating. The principled experiment has been finished by visual measurement of fringes, and is introduced in this paper.
激光角度传感器由立方角棱镜和全息光栅组成，本文完成了目测条纹下的原理性实验。
2
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块镜子来达到相同的目的。
3
The shape of block stones shall be close to straight prism or regular quad or polygons.