Page 465 - Deko-light Catalogue 2022

DAS PERFEKTE ARBEITSLICHT... UGR VALUE

...depends on various factors and changes depending The smaller the UGR value, the more glare-free a luminai-
on the requirements, room and time of day. Basically a re emits its light. Especially in office areas, you should use
commercial luminaire must support the work processes of luminaires with a UGR value of less than 19 in order to avoid
people whether assembling a car or working on a computer disturbing reflections. When determining the UGR value of
at an working at a computer at an office desk. The same a complete room, additional factors such as wall colour[s]
applies for kindergartens, schools and universities – here and surface finishes play a role.
too the light must support long periods of concentration,
without being perceived as a disturbing element. To achieve
this, there are various values and key figures, values and
indicators, some of which have only come into being thanks
to new in the lighting sector. In the following we would like
to present some of them to you. COLOUR RENDERING INDEX RA
The colour rendering index Ra describes the measure of the
correspondence of the perceived light colour between an
existing lighting situation and a reference light source. The
smaller the deviation, the better the colour rendering. A light
source with Ra 100 reproduces all colours exactly. The lower
the Ra value, the less precisely the colours are reproduced.

COMMERCIAL LIGHTS | lighting solution 463