- plane of incidence
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a plane determined by a given ray, incident on a surface, and the normal at the point where the incident ray strikes the surface.[1825-35]
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Universalium. 2010.
plane of incidence
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plane of incidence — a plane containing an incident line (as a ray of light) and the normal to a surface (as of a mirror) at the point of incidence * * * Optics. a plane determined by a given ray, incident on a surface, and the normal at the point where the incident… … Useful english dictionary
Incidence (geometry) — In geometry, the relations of incidence are those such as lies on between points and lines (as in point P lies on line L ), and intersects (as in line L1 intersects line L2 , in three dimensional space). That is, they are the binary relations… … Wikipedia
Incidence structure — In combinatorial mathematics, an incidence structure is a triple :C=(P,L,I)., where P is a set of points , L is a set of lines and I subseteq P imes L is the incidence relation. The elements of I are called flags. If :(p,ell) in I,we say that… … Wikipedia
Incidence matrix — In mathematics, an incidence matrix is a matrix that shows the relationship between two classes of objects. If the first class is X and the second is Y, the matrix has one row for each element of X and one column for each element of Y. The entry… … Wikipedia
Plane at infinity — In projective geometry, the plane at infinity is a projective plane which is added to the affine 3 space in order to give it closure of incidence properties. The result of the addition is the projective 3 space, P^3 . If the affine 3 space is… … Wikipedia
Plane mirror — A plane mirror is a mirror with a planar reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. Thus a collimated beam of light does not spread out after reflection from a plane mirror,… … Wikipedia
incidence — /in si deuhns/, n. 1. the rate or range of occurrence or influence of something, esp. of something unwanted: the high incidence of heart disease in men over 40. 2. a falling upon, affecting, or befalling; occurrence: The incidence of murder that… … Universalium
plane — 1. A two dimensional flat surface. See planum. 2. An imaginary surface formed by extension of a point through any axis or two definite points, in reference especially to craniometry and to pelvimetry. SYN: planum. [L. planus, flat] Addison … Medical dictionary
incidence — Angle An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where … The Collaborative International Dictionary of English
incidence — /ˈɪnsədəns / (say insuhduhns) noun 1. the range of occurrence or influence of a thing, or the extent of its effects: the incidence of a disease. 2. the falling, or direction or manner of falling, of a ray of light, etc., on a surface. 3. a… …
