| 单词 | huygens eyepiece |
| 释义 | Huygens eyepiecenoun Optics.an eyepiece consisting of two plano-convex lenses, the plane sides of which both face the eye. Origin of Huygens eyepieceFirst recorded in 1830–40; named after C. Huygens Words nearby Huygens eyepieceHuxleian, Huxley, Huxley, Aldous, Hu Yaobang, Huygens, Huygens eyepiece, Huygens principle, Huysmans, Huyton-with-Roby, huzzah, H.V. Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for Huygens eyepieceHuygens' eyepiece / (ˈhaɪɡənz) / nounphysics a telescope eyepiece consisting of two planoconvex lenses separated by a distance equal to half the sum of their focal lengths, which are in the ratio of three to one, and oriented so that their curved surfaces face the incident light Word Origin for Huygens' eyepieceC19: named after Christiaan Huygens (1629–95), Dutch physicist Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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