单词 | Huyghenian |
释义 | Huyghenian, a.|haɪˈgiːnɪən| [f. Huyghen-s (see prec.) + -ian.] Of or pertaining to Christiaan Huygens, a Dutch mathematician and astronomer (1629–95). Huyghenian eyepiece, a negative eyepiece of an optical instrument invented by Huygens, consisting of two plano-convex lenses, with their plane sides towards the eye.
1704J. Harris Lex. Techn. s.v. Satellites, The..Hugenian Satellite, as 'tis called, because discovered first by Mr. Hugens, revolves round Saturn, in about 16 Days. 1837Goring & Pritchard Microgr. 95 The pictures formed by deep achromatic triplet object-glasses acting with Huyghenian eye-pieces. 1867J. Hogg Microsc. i. ii. 50 The Huyghenian eye-piece..is the best for merely optical purposes. |

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