optical prism(redirected from Prism, Optical)
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|Noun||1.||optical prism - optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image|
biprism - an optical device for obtaining interference fringes
erecting prism - a right-angled optical prism used to turn an inverted image upright
optical device - a device for producing or controlling light