| 单词 | schmidt camera |
| 释义 | > as lemmasSchmidt camera 1. attributive. Designating a telescope used in astrophotography, having a wide field of view and employing a correcting lens (see sense 2) at the centre of curvature of a spherical primary mirror; in Schmidt camera, Schmidt telescope.In a Schmidt telescope, the film or photographic sensor is placed inside the telescope tube, at the focal point of the correcting lens. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > astronomical telescopes stellascope1661 Schmidt camera1934 Schmidt1939 Maksutov–Cassegrain1958 Maksutov1970 Nasmyth–Cassegrain1972 Schmidt telescope1978 Dobsonian1980 1934 Carnegie Inst. Washington: Year Bk. 1933–4 33 152 (heading) A Schmidt camera for nebular spectra in the ultra-violet. 1978 Sci. Amer. Dec. 90/3 The lens of the scallop eye appears to perform much the same function as the corrector plate of the Schmidt telescope. 2004 B. Bunch & A. Hellemans Hist. Sci. & Technol. 509/2 The Schmidt telescope comes to dominate astronomy because it is free from coma, an aberration. < as lemmas |
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