| 单词 | axis of incidence |
| 释义 | > as lemmasaxis of incidence b. axis of incidence: the line passing through the point of incidence perpendicularly to the refracting surface. axis of refraction: the continuation of the same line through the refracting medium. axis of double refraction: the line or direction on both sides of which double refraction takes place, but along which it does not exist. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > refraction > [noun] > double refraction > axis of axis of double refraction1831 1734 Builder's Dict. Axis of Incidence, Refraction. 1796 in C. Hutton Math. & Philos. Dict. I. 178. 1831 D. Brewster Treat. Optics xvii. 147 An axis of double refraction..is not like the axis of the earth, a fixed line within the rhomb or crystal. It is only a fixed direction. 1836 Athenæum No. 448. 381 Like calcareous spar it has one axis of double refraction. axis of incidence angle of incidence: see angle of incidence n. at angle n.2 Phrases 2e. axis of incidence, the perpendicular or normal to the surface at the point of incidence. cathetus of incidence (see quot. 1728 at cathetus n.). plane of incidence, the plane through the line of incidence and the normal to the surface. point of incidence, incidence-point, the point at which the line of incidence meets the surface. †ray of incidence, an incident ray, a ray which falls upon a reflecting or refracting surface.extracted from incidencen.< as lemmas |
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