单词 | collimate |
释义 | collimatev.Π 1623 H. Cockeram Eng. Dict. Collimate, to leuell or winke with one eye. 1656 T. Blount Glossographia Collimate, to wink with one eye, to level or aim at a mark. 1721 N. Bailey Universal Etymol. Eng. Dict. Collimate, to level at, or aim at a Mark [1731–90 or hit the Mark]. 2. transitive. a. To place or adjust (a telescope) so that the line of sight is in the required position; to place (two telescopes, lenses, etc.) so that their optical axes are in the same line. ΘΚΠ the world > physical sensation > sight and vision > optical skills and techniques > use optical skills and techniques [verb (transitive)] > use other techniques project1865 collimate1868 web1883 vignette1945 track1950 the world > physical sensation > sight and vision > optical instruments > lens > [verb (transitive)] > collimate collimate1868 1868 J. N. Lockyer Elem. Lessons Astron. 244 An instrument with the cross wires perfectly adjusted is said to be correctly collimated. b. To make parallel, as a lens, the rays of light passing through it. Π 1837 Penny Cycl. VII. 349 [Collimator] The cross wires in the supplementary or collimating telescope. Derivatives ˈcollimating adj. Π 1878 J. N. Lockyer Stargazing 394 The little object-glass..or collimating lens, as it is called. This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2021). < v.1623 |
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