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

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

Below it, a Noh stage with a platform of translucent optical glass appears to float over pale cypress legs that are jointed using traditional Japanese carpentry.

From New York Times ● Apr. 3, 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

Nevertheless, disks of optical glass, both crown and flint, have been produced up to 39 in. in diameter.

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