technical
U G R < 19
The UGR (Unified Glare Rating) method in
accordance with CIE 117 is used to assess
and delimit direct psychological glare
created by luminaires.
In order to minimise direct glare from
luminaires, two factors are important: the
screening angle and the arrangement of
the luminaires.
The direct glare expressed by the UGR value
always depends on the surroundings and
the position of the observer.
Reference values of EN 12464-1:
UGR <19 at the workstation
