optical glass

noun

Definition of optical glass 

: flint or crown glass of well-defined characteristics used especially for making lenses

Examples of optical glass in a Sentence

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By the 1960s, the company was known less for military-grade optical glass than for its aspirational cool, thanks to such models as the Balorama, made famous by Clint Eastwood’s Dirty Harry character. Bloomberg, Fortune, "These $500 Ray-Ban Aviators Are Plated in 24K Gold," 16 June 2018 New types of optical glass developed for their microscopes also led the company to branch out into telescopes, projectors, binoculars, and photographic lenses. Allain Daigle, The Atlantic, "How the 50-mm Lens Became ‘Normal’," 13 May 2018 The site includes a collection of structures set among gardens — an art gallery, a stage made of optical glass, a simple tea house, several historic gates. Mary Louise Schumacher, Milwaukee Journal Sentinel, "With Kusama Museum and art-filled islands, Japan is a paradise for art nerds," 27 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'optical glass.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of optical glass

1797, in the meaning defined above

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The first known use of optical glass was in 1797

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More Definitions for optical glass

optical glass

noun

Medical Definition of optical glass 

: flint or crown glass of well-defined characteristics used especially for making lenses

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