EA: ILLUMINANCE_DIRECT_FROM_PRINCIPAL_SOURCE
Status:
STD 2005/06/07
Code:
493
Concept definition:
The <<
ILLUMINANCE_DIRECT
>> from the principal source of illumination (for example: the <
SUN
> and/or an illumination flare).
Attribute value type:
REAL
Unit equivalence class label:
RADIANT_ENERGY_FLUENCE
Reference type:
Reference:
Supplemental references:
Group membership:
EM_PHENOMENON
LIGHTING_AND_VISIBILITY
SPACE
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