K9 Optical right-angle prism

Optical right-angle prism 

1.Prism can be used in optical system to achieve the purpose of beam change the light path  directionafter reflection ,  also can realize imaging rotary or inverted.

2.right-angle prism is usually used to achieve beam deviate a light path by 90° or 180° . 

This 90o deviation of the input light makes the right angle prism a suitable alternative for a mirror.

3.The right angle prism can be used as a 180° retroreflector. 180o deviation of the light path is independent of the angle at which the light enters the prism.