3M Speedglas 9100 Series User Manual page 104

E:1
E:2
Transmittance (%)
20
18
16
14
12
10
8
6
4
2
0
200 380
UV
(ultraviolet) radiation
– always blocked
100
780
VISIBLE LIGHT
Light transmission curve
Speedglas welding lters keep the welder
protected from harmful UV and IR radiation.
This protection remains always,in on, o ,
dark and light state.
This is and example of a transmission curve for
3M Speedglas Welding Filter 9100X
1000 1200
IR
(infrared) radiation
– always blocked
1400