Lambert's law


nounOptics.
  1. 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 from all directions.

Origin of Lambert's law

1
After J. H. Lambert
  • Also called cosine law.

Words Nearby Lambert's law

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024