optical flint


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optical flint

n
(General Physics) an optical glass of high dispersion and high refractive index containing lead oxide. They are used in the manufacture of lenses, artificial gems, and cut glass. Also called: flint glass
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Noun1.optical flint - optical glass of high dispersion and high refractive indexoptical flint - optical glass of high dispersion and high refractive index
optical glass - clear homogeneous glass of known refractive index; used to make lenses
References in periodicals archive ?
The Indian company plans to build an integrated unit for extracting and transforming fluorosis acid, a key ingredient for making steel as well as optical flint, especially extra low dispersion lenses used for cameras and telescopes, said the company's Director General Dinesh Sardana.