flint glass

American  

noun

Optics.

1. an optical glass of high dispersion and a relatively high index of refraction, composed of alkalis, lead oxide, and silica, with or without other bases, sometimes used as the diverging lens component of an achromatic lens.

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flint glass British  

noun

1. another name for optical flint flint

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Etymology

Origin of flint glass

First recorded in 1665–75

Example Sentences

Rosé, chardonnay, sauvignon blanc and pinot gris are all typically bottled in flint glass.

From New York Times • Jul. 7, 2022

At what incident angle must 470 nm light enter flint glass to have the same angle of refraction?

From Textbooks • Aug. 12, 2015

An optical fiber uses flint glass clad with crown glass.

From Textbooks • Aug. 12, 2015

The coefficients of linear expansion per degree F. of some other materials used in making pendulums are as follows: white deal, .0000024; flint glass, .0000048; iron, .000007; lead, .000016; zinc, .000016; and mercury, .000033.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various

For general purposes flint glass is vastly superior to the soft soda mentioned above.

From On Laboratory Arts by Threlfall, Richard