optical glass
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noun Optics.
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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Nearby words
- optical double star,
- optical effects,
- optical fiber,
- optical fibre,
- optical flint,
- optical illusion,
- optical image,
- optical isomer,
- optical isomerism,
- optical mark reading
Origin of optical glass
First recorded in 1740–50
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for optical glass
You know he was an optical-glass maker by profession, and the best we have ever had.
You know, he was an optical-glass maker by profession, and the best we ever had.
Reviews|Oscar WildeThis procedure is being repeated in the launching of an optical-glass industry; this trade has also been in Teutonic hands.
The War After the War|Isaac Frederick Marcosson
optical glass
noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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