optical glass
noun
: flint or crown glass of well-defined characteristics used especially for making lenses
Examples of optical glass in a Sentence
Recent Examples on the Web
Crafted by master artisans in Japan, these high-style shades are made of optical glass that is clarified through platinum and then polarized.
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Air Mail, 5 Apr. 2025
Its researchers, engineers, and technicians had designed gunsight lenses for fighter planes in World War I. Before World War I, the best-quality optical glass came from Germany, and other nations regarded its creation as a trade secret, leading the US to engineer its industry on its own.
—Kelsey D. Atherton, Popular Science, 20 July 2023
Nearby, studio assistants maneuvered a large device that looked as if it had been designed by da Vinci or Galileo, and attempted to catch sunlight in a prism of optical glass, to project a rainbow on a canvas (which Sugimoto photographed).
—Emma Allen, The New Yorker, 12 Dec. 2022
More lucrative was the manufacture of optical glass for telescopes and searchlights.
—IEEE Spectrum, 31 May 2019
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, 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, 13 May 2018
The box is basically a set of prisms made from high-quality optical glass that bend light around any object in the enclosure around which the prisms are arrayed, the researchers describe in a paper posted on the online repository arXiv.
—Philip Ball, Scientific American, 11 June 2013
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Air Mail, 5 Apr. 2025
Its researchers, engineers, and technicians had designed gunsight lenses for fighter planes in World War I. Before World War I, the best-quality optical glass came from Germany, and other nations regarded its creation as a trade secret, leading the US to engineer its industry on its own.
—Kelsey D. Atherton, Popular Science, 20 July 2023
Nearby, studio assistants maneuvered a large device that looked as if it had been designed by da Vinci or Galileo, and attempted to catch sunlight in a prism of optical glass, to project a rainbow on a canvas (which Sugimoto photographed).
—Emma Allen, The New Yorker, 12 Dec. 2022
More lucrative was the manufacture of optical glass for telescopes and searchlights.
—IEEE Spectrum, 31 May 2019
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, 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, 13 May 2018
The box is basically a set of prisms made from high-quality optical glass that bend light around any object in the enclosure around which the prisms are arrayed, the researchers describe in a paper posted on the online repository arXiv.
—Philip Ball, Scientific American, 11 June 2013
Cite this Entry
“Optical glass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optical%20glass. Accessed 30 Oct. 2025.
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