A rectangular prism can also be used as a 180° backward mirror, as shown in video 2 at the bottom right. When the input light is incident from the inclined plane of the prism, the light will have a total internal reflection at the glass/air interface of the rectangular plane. A second total internal reflection occurs as it passes through the next right-angled plane and finally emerges from the inclined plane in a direction parallel to the incident beam. Like a backward reflector, the 180° deflection produced by the optical path is independent of the incident Angle.
An optical prism is used to redirect light at a specified Angle. Optical prisms are ideal for light deflection or image orientation adjustment. The design of an optical prism determines how light interacts with light. When light enters an optical prism, it reflects off a single surface or surfaces before leaving, or refracts as it passes through the substrate. Prism is widely used in laser research, laser optical system, optical imaging, machine vision, life science, biomedical and other fields or products.
MAP optics offers a wide range of optical prisms with substrate or coating. Including rectangular prism, pentagonal prism, Daway prism, roof prism, Angle mirror, wedge prism. Anti-reflective coatings include MgF 2, UV-VIS, UV-AR, VIS 0°, VIS-NIR or multiple laser line options.