- Lambert's cosine law
- the intensity of radiation on an absorbing surface varies as the cosine of the angle of incidence for parallel rays.
Medical dictionary. 2011.
Lambert's cosine law
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Lambert's cosine law — See also: Lambertian reflectance In optics, Lambert s cosine law says that the radiant intensity observed from a Lambertian surface or a Lambertian radiator is directly proportional to the cosine of the angle θ between the observer s line of… … Wikipedia
Lambert’s cosine law — Lamberto kosinuso dėsnis statusas T sritis fizika atitikmenys: angl. cosine law; Lambert’s cosine law vok. Lamberts Kosinusgesetz, n; Lambertsches Kosinusgesetz, n rus. закон косинуса, m; закон Ламберта, m pranc. loi de Lambert, f; loi du cosinus … Fizikos terminų žodynas
Lambert's cosine law — Lam·bert s cosine law (lahmґbərts) [Johann Heinrich Lambert, German mathematician and physicist, 1728–1777] see under law … Medical dictionary
cosine law — Lamberto kosinuso dėsnis statusas T sritis fizika atitikmenys: angl. cosine law; Lambert’s cosine law vok. Lamberts Kosinusgesetz, n; Lambertsches Kosinusgesetz, n rus. закон косинуса, m; закон Ламберта, m pranc. loi de Lambert, f; loi du cosinus … Fizikos terminų žodynas
cosine law — noun : either of two laws of radiation: a. : the radiant flux emitted in a given direction from a given small area of a perfectly diffusing surface varies as the cosine of the angle of emission b. : the irradiation by parallel rays falling on a… … Useful english dictionary
cosine law — Optics. See Lambert s law. * * * … Universalium
Lambert — may refer to*Lambert of Maastricht, bishop, saint, and martyr *Lambert of St Bertin or Lambert of St Omer, medieval encyclopedist *Lambert Mieszkowic, son of Mieszko I of Poland *Lambert McKenna, Irish scholar, Editor and Lexicographer. (1870… … Wikipedia
Law of cosines — This article is about the law of cosines in Euclidean geometry. For the cosine law of optics, see Lambert s cosine law. Figure 1 – A triangle. The angles α, β, and γ are respectively opposite the sides a, b, and c … Wikipedia
lambert's law — noun Usage: usually capitalized L Etymology: after J. H. Lambert, its formulator : either of two laws in physics: a. : cosine law b. : the negative logarithm of the transmittance of a layer of substance is proportional to the thickness of the… … Useful english dictionary
Lambert's law — Optics. the law that the luminous intensity of a perfectly diffusing surface in any direction is proportional to the cosine of the angle between that direction and the normal to the surface, for which reason the surface will appear equally bright … Universalium
