Lambert's law

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noun 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 from all directions.

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Also called cosine law.

Origin of Lambert's law

After J. H. Lambert

Words nearby Lambert's law

lamb down, lambency, lambent, lambert, Lambert conformal projection, Lambert's law, Lambeth, Lambeth Conference, Lambeth degree, Lambeth Palace, Lambeth Quadrilateral

How to use Lambert's law in a sentence

Unless there is a court decision that changes our law, we are OK.
Jeb Bush’s Unseen Anti-Gay Marriage Emails|Jackie Kucinich|January 9, 2015|DAILY BEAST
Submission is set in a France seven years from now that is dominated by a Muslim president intent on imposing Islamic law.
Houellebecq’s Incendiary Novel Imagines France With a Muslim President|Pierre Assouline|January 9, 2015|DAILY BEAST
A few days later, Bush replied, “We will uphold the law in Florida.”
Jeb Bush’s Unseen Anti-Gay Marriage Emails|Jackie Kucinich|January 9, 2015|DAILY BEAST
To those who agreed with him, Bush pledged that the law against same-sex marriage would remain intact.
Jeb Bush’s Unseen Anti-Gay Marriage Emails|Jackie Kucinich|January 9, 2015|DAILY BEAST

In Israel, however, a new law took effect January 1st that banned the use of underweight models.
How Skinny Is Too Skinny? Israel Bans ‘Underweight’ Models|Carrie Arnold|January 8, 2015|DAILY BEAST
We should have to admit that the new law does little or nothing to relieve such a situation.
Readings in Money and Banking|Chester Arthur Phillips
He that seeketh the law, shall be filled with it: and he that dealeth deceitfully, shall meet with a stumblingblock therein.
The Bible, Douay-Rheims Version|Various
To Harrison and his wife there was no distinction between the executive and judicial branches of the law.
The Bondboy|George W. (George Washington) Ogden
Now this setting up of an orderly law-abiding self seems to me to imply that there are impulses which make for order.
Children's Ways|James Sully
These schools became affiliated Universities, but never equalled the Law University in importance.
The Mediaeval Mind (Volume II of II)|Henry Osborn Taylor