A prism is a transparent object surrounded by two planes that intersect but are not parallel to each other, used to split or disperse light beams. Prisms are polyhedrons made of transparent materials (such as glass, crystal, etc.). It is widely used in optical instruments. Prisms can be divided into several types according to their properties and uses. For example, in spectroscopic instruments, the "dispersive prism" that decomposes the composite light into the spectrum is more commonly used as an equilateral prism; in periscopes, binoculars and other instruments, the direction of light is changed to adjust its imaging position. "Reflecting Prisms", generally using right-angle prisms. Follow the editor of quality optical prism on sales to learn about its classification knowledge!

Polyhedrons made of transparent materials are important optical components. The plane on which the light enters and exits is called the side surface, and the plane perpendicular to the side surface is called the main section. According to the shape of the main section, it can be divided into triangular prisms, right-angle prisms, pentagonal prisms, etc. The main section of a triangular prism is a triangle with two refracting surfaces. According to the law of refraction, the ray passes through the prism and is deflected twice to the bottom surface. The angle q between the outgoing ray and the incident ray is called the deflection angle. Its size is determined by the refractive index n of the prism medium and the incident angle i. When i is fixed, light of different wavelengths has different deflection angles. In visible light, the larger deflection angle is violet light, and the smaller deflection angle is red light.
The above is the small series of quality optical prism on sales: a brief introduction to the classification knowledge of prisms.