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optical axis 1. a. opticus. 2. the straight line that passes through the centers of the surfaces and the centers of curvature of a lens system. In a spherical system, it is the axis of symmetry, in the eye being the line passing through the center of the cornea and of the lens of the eye; in a simple lens system it is the line perpendicular to both surfaces of the lens, the lens being regarded as a spherical segment.Medical dictionary. 2011.
Optic axis — Optic Op tic ([o^]p t[i^]k), Optical Op tic*al ([o^]p t[i^]*kal), a. [F. optique, Gr. optiko s; akin to o psis sight, o pwpa I have seen, o psomai I shall see, and to o sse the two eyes, o ps face, L. oculus eye. See {Ocular}, {Eye}, and cf.… … The Collaborative International Dictionary of English
Optic axis — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… … The Collaborative International Dictionary of English
optic axis — n. in anisotropic crystals, a direction along which the velocity of light does not depend on the polarization of the light … English World dictionary
optic axis — noun 1. in a doubly refracting crystal, the line in the direction of which no double refraction occurs a crystal may have either one or two optic axes • Hypernyms: ↑axis 2. a line that passes through the center of curvature of a lens so that… … Useful english dictionary
optic axis — optinė ašis statusas T sritis fizika atitikmenys: angl. optic axis; optical axis vok. optische Achse, f rus. оптическая ось, f pranc. axe optique, m … Fizikos terminų žodynas
Optic axis of a crystal — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… … The Collaborative International Dictionary of English
Optic axis of a crystal — For the axis of an optical system, see Optical axis. The optic axis of a crystal is the direction in which a ray of transmitted light suffers no birefringence (double refraction). Due to the internal structure of the crystal (the specific… … Wikipedia
optic axis — noun Date: 1664 a line in a doubly refracting medium that is parallel to the direction in which all components of plane polarized light travel with the same speed … New Collegiate Dictionary
optic axis — Crystall. (in a crystal exhibiting double refraction) the direction or directions, uniaxial or biaxial, respectively, along which this phenomenon does not occur. [1655 65] * * * … Universalium
optic axis — op′tic ax′is n. cry the direction or directions in a crystal along which light is not doubly refracted • Etymology: 1655–65 … From formal English to slang
