Equilateral Prism

Equilateral prisms are normally used for the dispersion of light into its different colors. Light incident at an oblique angle to the first face is dispersed according to its wavelength and emerges as a spectrum from the opposite face. We offer these prisms made from BK7 optical glass.

60° Dispersion Equilateral Prism

Betensh Optics specializes in manufacturing custom equilateral prisms, which are triangular optical prisms with three identical side lengths and three 60° apex angles. These prisms are commonly used for dispersive purposes, such as separating a white light source into a spectrum of multiple colors. Depending on the substrate materials, equilateral dispersive prisms can be selected to break up different spectral regions. They function similarly to a diffraction grating but offer better brightness, greater endurance to power, and fewer issues with higher orders.

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