3M Auto-darkening Welding Helmet 10V Instrucciones De Uso página 59

H:1
Transmittance (%)
20
18
16
14
12
10
8
6
4
2
0
200 380
UV
(ultraviolet) radiation
– always blocked
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.
1000 1200
IR
(infrared) radiation
– always blocked
1400
55