Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use luminance in a sentence
The TV also gets up to 700 nits peak brightness, creating greater luminance and contrast—even in bright rooms.
That meant you’d be spending all night in the lab trying, through trial and error, to find a pattern in a cell’s responses by playing with the location, size, or luminance of the spot.The Accident That Led to Machines That Can See - Issue 107: The Edge | Phil Jaekl | October 20, 2021 | Nautilus
A few fluoros cast wan puddles of luminance on the plastic flooring.The Sensitive Man | Poul William Anderson
Still the whole machine is clear-cut to the smallest wire in their all-exposing luminance.'Green Balls' | Paul Bewsher
The remainder of the big room receded into a grey twilight encircling the patch of luminance.The Lamp of Fate | Margaret Pedler
British Dictionary definitions for luminance
a state or quality of radiating or reflecting light
a measure (in candelas per square metre) of the brightness of a point on a surface that is radiating or reflecting light. It is the luminous intensity in a given direction of a small element of surface area divided by the orthogonal projection of this area onto a plane at right angles to the direction: Symbol: L
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for luminance
The luminous intensity of a light source per unit area. Occasionally the lambert unit is used to measure luminance. Also called photometric brightness
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.