Illuminance
id:
illuminance-174-2255160
title:
Illuminance
text:
In photometry, illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted from a surface. Luminous emittance is also known as luminous exitance. In SI units illuminance is measured in lux (lx), or equivalently in lumens per square metre (lm·m−
brand slug:
wiki
category slug:
encyclopedia
description:
Luminous flux incident on a surface per area
original url:
https://en.wikipedia.org/wiki/Illuminance
date created:
2004-07-02T22:43:52Z
date modified:
2024-09-02T20:52:47Z
main entity:
{"identifier":"Q194411","url":"https://www.wikidata.org/entity/Q194411"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/5/52/Illuminance_Diagram.tif","width":1280,"height":720}
fields total:
13
integrity:
16