Technical Design-in Guide SLE G6 | 12-2018 | 2.1 | en
Optical Aspects
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Risk group
Evaluation
Actinic UV E (200 - 400 nm)
S
Risk group 0
(1)
Near UV E
(315 - 400 nm)
UVA
Risk group 0
(1)
Blue light L (300 - 700 nm)
B
Risk group 0
(1)
Retina, thermal L (380 - 1,400 nm)
R
Risk group 0
(1)
IR radiation, eye E (780 - 3,000 nm)
IR
Risk group 0
(1)
(1)
The evaluation of eye safety is based on EN 62471:2008 (photo-biological safety of lamps and lamp systems):
The risk depends on the size of the light source and its intensity. The risk increases with smaller light sources and higher light
intensity.
According to the classification of the LED into certain risk groups luminaire manufacturers must consider different requirements:
Necessary measures
RG 0
RG 1
RG 2
RG 3
Indication of risk group in the data sheet of the LED
x
x
x
x
Indication of risk group on the LED module itself
-
-
x
x
Stating at what distance the LED module falls back into risk group 1
-
-
x
x
Positioning of the luminaire so that direct exposure to the light can be prevented
-
-
x
x
Labeling the luminiare with the following symbol:
-
-
x
x
The risk group classification for the luminaire is the same as that of the installed LED module.
Risk-free (risk group 0): The LEDs do not pose any photo-biological risk.
_
Low risk (risk group 1): The LEDs pose a small risk because of normal limitations.
_
Medium risk (risk group 2): The LEDs pose a small risk because of reactions to bright light sources or thermal discomfort.
_
High risk (risk group 3): The LEDs pose a risk even with just momentary or temporary exposure.
_
