optical glass

American  

noun

Optics.

1. any of several types of high-quality, homogeneous, color-free glass, as flint or crown glass, having specified refractive properties, used in lenses and other components of optical systems.

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optical glass British  

noun

1. any of several types of clear homogeneous glass of known refractive index used in the construction of lenses, etc See optical flint optical crown

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Etymology

Origin of optical glass

First recorded in 1740–50

Example Sentences

See Examples For:

optical glass

This method also does away with the expensive optical glass cover.

From New York Times ● Oct. 12, 2022

In his book, he recalls doing nearly 30 jobs, including underwater filmmaker, optical glass fitter, bar owner, and in-country mechanic for the Royal New Zealand Air Force.

From Los Angeles Times ● May 7, 2017

Kao figured out how to transmit light over long distances in optical glass fibers.

From Scientific American ● Jan. 5, 2011

For the bar, designer Tokujin Yoshioka made a table and bench out of slabs of optical glass.

From Architectural Digest ● Apr. 1, 2010

The next and most important forward step in the progress of optical glass manufacture was initiated by Ernst Abbe and carried out jointly by him and O. Schott at Jena in Germany.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 1 "Gichtel, Johann" to "Glory" by Various