What are uses and Properties of Right Angle Prisms?

Written by cnoptics11

It is believed that no higher secondary study is complete without a practical Science teaching tool calls prisms. Owing to this reason almost every student is aware of this optical component that has amazing refractive properties. Right angle prism is used for the demonstration of total internal reflection or simply splitting a single LASER beam.

What is this Prism Used for?

RAP or Right Angle Prism is used primarily either for bending the image paths or for redirecting light at 90 degree. This type of prism is named so because it is designed with a 90 degree angle. Because of its properties of rotating image and redirecting the input light it is used as a main component for polarizing cube beamsplitters.

Not only this, TIR or Total Internal Reflection in the Right Angle Prisms with AR or Anti-Reflection coatings on both the sides makes them an ideal alternative for 45 degree mirror. Two right angle prisms can be used together for image displacement applications. They are also referred as image reflecting prisms or simply reflecting prims.

What Are Prisms Made of?

Prisms are transparent optical elements with polished and flat surfaces that refract light. Two flat surfaces of the prism should have an angle between them and if it is 90 degree it is a right angle prism. The exact angle between the prisms depends on its application. Primarily it is triangular in shape; it has a triangular base and has rectangular sides. There are certain prisms that are not in the geometrical shape. They can be made of any material which should be transparent to the wavelength of the light they are designed for. Normally, fluorite, plastic and glass are used for its manufacturing.

What is a Dispersive Prism?

This prism is used for splitting white light into a spectrum of seven colors. Moreover, prisms are also used for reflecting and splitting light into components with varying polarizations.

How Prism Works?

Light tends to change its speed when it travels from one medium to another say when it passes from air to glass. This change of the speed of light causes refraction. The degree at which the light gets bend depends on the angle which the incident ray forms with the surface and also on the ratio of the refractive indices. The refractive indices of different material vary with the varying colors and it gets refracted differently and leaves the prism at different angles. This is known as dispersion of light.

Whether you want prisms to use in Science laboratory or want to buy it for making objects like Kaleidoscope, you should make sure to buy it from a reliable and reputed Prisms manufacturer so as to make sure that you get the best deal.

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