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- Lambert's_cosine_law abstract "In optics, Lambert's cosine law says that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle θ between the observer's line of sight and the surface normal. The law is also known as the cosine emission law or Lambert's emission law. It is named after Johann Heinrich Lambert, from his Photometria, published in 1760.A surface which obeys Lambert's law is said to be Lambertian, and exhibits Lambertian reflectance. Such a surface has the same radiance when viewed from any angle. This means, for example, that to the human eye it has the same apparent brightness (or luminance). It has the same radiance because, although the emitted power from a given area element is reduced by the cosine of the emission angle, the apparent size (solid angle) of the observed area, as seen by a viewer, is decreased by a corresponding amount. Therefore, its radiance (power per unit solid angle per unit projected source area) is the same.".
- Lambert's_cosine_law thumbnail Lambert_Cosine_Law_1.svg?width=300.
- Lambert's_cosine_law wikiPageID "41306".
- Lambert's_cosine_law wikiPageRevisionID "585423819".
- Lambert's_cosine_law hasPhotoCollection Lambert's_cosine_law.
- Lambert's_cosine_law subject Category:3D_computer_graphics.
- Lambert's_cosine_law subject Category:Photometry.
- Lambert's_cosine_law subject Category:Radiometry.
- Lambert's_cosine_law comment "In optics, Lambert's cosine law says that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle θ between the observer's line of sight and the surface normal. The law is also known as the cosine emission law or Lambert's emission law.".
- Lambert's_cosine_law label "Lambert's cosine law".
- Lambert's_cosine_law label "Lambertsches Gesetz".
- Lambert's_cosine_law label "Legge di Lambert".
- Lambert's_cosine_law label "Prawo Lamberta".
- Lambert's_cosine_law label "Wet van Lambert".
- Lambert's_cosine_law label "Закон Ламберта".
- Lambert's_cosine_law label "余弦辐射体".
- Lambert's_cosine_law sameAs Lambertsches_Gesetz.
- Lambert's_cosine_law sameAs Legge_di_Lambert.
- Lambert's_cosine_law sameAs Wet_van_Lambert.
- Lambert's_cosine_law sameAs Prawo_Lamberta.
- Lambert's_cosine_law sameAs m.0bbcc.
- Lambert's_cosine_law sameAs Q1190146.
- Lambert's_cosine_law sameAs Q1190146.
- Lambert's_cosine_law wasDerivedFrom Lambert's_cosine_law?oldid=585423819.
- Lambert's_cosine_law depiction Lambert_Cosine_Law_1.svg.
- Lambert's_cosine_law isPrimaryTopicOf Lambert's_cosine_law.
