Application and type of optical prism

Optical prism In an optical device, a piece of glass or other transparent material cut at a precise angle and plane can be used to analyze and reflect light. Ordinary Right angle prism can separate the white light into its constituent colors, called the spectrum. Each color or wavelength that makes up white light is bent or refracted, but the amount is different. Shorter wavelengths (wavelengths toward the purple end of the spectrum) bend the most, while longer wavelengths (wavelengths toward the red end of the spectrum) bend the least. This type of prism is used in some spectroscopes, instruments that analyze light and determine the identity and structure of materials that emit or absorb light.

Right angle prism

Optical prisms refract light to reflect, disperse or split light. The prism is usually made of glass, but any material can be used as long as the material is transparent and suitable for the design wavelength. Common materials include glass, plastic and fluorite. Common types of optical prisms are: Dispersing prism, Penta prism, Dove prism, Wedge prism, Right angle prism, etc.

Optical prisms can reverse the direction of light through internal reflection, so they are useful in binoculars.

Depending on the application, optical prisms can be made into many different forms and shapes, and are used in many optical observation instruments, such as periscopes, binoculars, and spotting telescopes.



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