Shanghai da Wei Optical Co., Ltd.

Prism side: the light is called the plane of the incoming and outgoing side. The main section of the prism: the plane perpendicular to the side is called the master section. According to the master-sectional shape can be divided into prism, right angle prism, pentagonal prism. The main section is triangular prism. There are two prism refractive surface, the angle between them is called angle, angle of the plane of the bottom surface. According to the law of refraction of light through the prism, the two deflection to the underside of the outgoing light and incident light angle q is called the deflection angle. Its size is determined by the refractive indices n and the prism angle of incidence i decisions. When i is fixed, the different wavelengths of light have different deflection angles, the deflection angle in the visible violet is the largest, the smallest is red.