Manufacturer of spherical lens——Types and applications of optical prisms
A piece of glass or other transparent material cut at a precise angle and plane in an optical device, which can be used to analyze and reflect light. Ordinary triangular prism can separate white light into its constituent color, which is called spectrum. Each color or wavelength that makes up white light is bent or refracted, but in different amounts. The shorter wavelength (towards the purple end of the spectrum) bends the most, while the longer wavelength (towards the red end of the spectrum) bends the least. These prisms are used in some spectrometers, in instruments for analyzing light, and in determining the identification and structure of materials that emit or absorb light.
An optical prism refracts light to reflect (reflection prism), disperse (dispersion prism), or split (beam splitter). Prisms are usually made of glass, but any material can be used as long as it is transparent and suitable for the design wavelength. Common materials include glass, plastic and fluorite.
Optical prisms can reverse the direction of light by internal reflection, so they are very useful in binoculars.
Depending on the application, optical prisms can be made in many different forms and shapes. For example, the Polo prism is composed of two prisms, which can invert both images and images, and is used in many optical observation instruments, such as periscope, binoculars and monocycles.
