单词	optical glass
释义	optical glass noun : flint or crown glass of well-defined characteristics used especially for making lenses Example Sentences Recent Examples on the Web 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 The lens ball is made from optical glass and goes through multiple quality checks to ensure your pictures remain flawless. Popular Science, 23 Oct. 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 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, 27 Apr. 2018 Word History First Known Use 1797, in the meaning defined above Medical Definition optical glass noun : flint or crown glass of well-defined characteristics used especially for making lenses
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