单词 | Nicol prism |
释义 | Nicol prism/ˈnɪk(ə)l![]() noun A device for producing plane-polarized light, consisting of two pieces of optically clear calcite or Iceland spar cemented together with Canada balsam in the shape of a prism.The Nicol prism, which is made entirely of calcite, a doubly refracting mineral, isolates one beam cleanly....
OriginMid 19th century: named after William Nicol (died 1851), the Scottish physicist who invented it. |
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