Luminance or Illuminance ?

Started Mar 28, 2013 | Discussions thread
Tom Axford
Contributing MemberPosts: 942
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Re: Luminance or Illuminance ?
In reply to GeorgianBay1939, Mar 28, 2013

The definitions I have seen distinguish between the brightness of a surface (luminance) and the amount of light incident on a surface (illuminance). I'm not sure how widely recognised this distinction is, but using google produces some confirmation:

http://www.jimonlight.com/2008/12/18/lighting-101-luminance-vs-illuminance/

http://www.kodak.com/cluster/global/en/consumer/products/techInfo/am105/am105kic.shtml

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