英语词汇“Huygens eyepiece”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	Huygens eyepiece
释义	Huygens eyepiece noun Optics A simple eyepiece consisting of two separate planoconvex lenses, used chiefly in refracting telescopes of long focal length.The Ramsden eyepiece is essentially a Huygens eyepiece with the bottom lens element reversed.... This is a variation on the Huygens eyepiece, and has a two piece achromatised eye lens. The binocular or optional trinocular viewing head is equipped with several Huygens eyepieces and can be rotated to any position and secured with a lock screw.
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