| 单词 | optical axis |
| 释义 | > as lemmasoptical axis optical axis n. (a) the straight line through the centres of curvature of the cornea and lens surfaces; the axis of the eye; (Optics) the line passing through the centres of the entrance pupil and exit pupil of an optical system, on which lie the cardinal points; (b) Crystallography and Mineralogy = optic axis n. (b) at optic adj. and n. Compounds. ΘΚΠ the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > axis optical axis1663 optic axis1664 1663 R. Boyle Some Considerations Usefulnesse Exper. Nat. Philos. i. 96 An eye thus frozen, may be cut along that which Optical Writers call the Optical Axis, and then it affords an instructive Prospect. 1748 Philos. Trans. (Royal Soc.) 45 153 Their Eyes have so great a Liberty in the Orbits, that they are able to turn them any Way,..which..enables them to change or direct their Optical Axis to any designed Place. 1854 J. D. Dana Syst. Mineral. (ed. 4) Introd. 20 A line bisecting the..angle between these optical axes is called a bisectrix. 1966 R. Webster Pract. Gemmol. (ed. 4) x. 100 For the whole condenser to be swung clear of the optical axis of the microscope. 1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) I. xiv. 452/2 One may postulate the existence of an anteroposterior axis of symmetry, which is also the optical axis of the eye. < as lemmas |
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