Lambert's cosine law
id:
lambert-s-cosine-law-191-13403814
title:
Lambert's cosine law
text:
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; I = I0 cos θ. 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
brand slug:
wiki
category slug:
encyclopedia
description:
Description in optics of the angular dependency of the radiant intensity of a radiant surface
original url:
https://en.wikipedia.org/wiki/Lambert%27s_cosine_law
date created:
date modified:
2024-03-02T01:50:27Z
main entity:
{"identifier":"Q1190146","url":"https://www.wikidata.org/entity/Q1190146"}
image:
fields total:
13
integrity:
14