Source: wikibot/grism
= Grism
{wiki=Grism}
A grism is an optical component used in spectroscopes and other imaging devices to disperse light into its constituent wavelengths. It combines the functions of a grating and a prism: it consists of a transparent optical element, typically made of glass, that has a diffraction grating etched onto one of its surfaces. The grism operates by diffracting light into different wavelengths, allowing for spectroscopic analysis.