[Radiance-general] UDI upper limits

Lars O. Grobe grobe at gmx.net
Mon Dec 10 14:33:41 PST 2012


Hi Rob, Kevin & Radiance folks,

the latest 3K lux limit I found on John's site:

http://climate-based-daylighting.com/doku.php?id=academic:climate-based-daylight-modelling

In this paper, the 2500lx was mentioned:

http://www.thedaylightsite.com/filebank/Tools and Metrics - JM2.pdf (yes, the spaces are included in the URL)

The 2000lx has been used most as far as I am aware. I can understand that the upper limit is not hard (as Kevin said, it can be argued that such a limit does not make sense at all, which is still kind of an open discussion). Still I find it tricky to reference a UDI metric with all these definitions. I tend to use John's climate-based-daylighting.com as a (moving) reference, which would lead me to "latest revision of UDI-e is >3000lx.

Cheers, Lars.


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