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Fail-Safe Darkening
When you pick up an unenergized Speedglas filter,
it is in an intermediate dark shade; you must turn it
ON to make it go into the light state. If anything
catastrophic happens to the filter, it simply defaults
back to the darker intermediate OFF shade.
As mentioned above, UV/IR protection is
always present.
Meets ANSI Z87.1-2003
American National Standard Institute for
eye and face protection.
Constant UV/IR Protection:
This filter provides the same UV/IR filtration protection as a
traditional, non-auto-darkening welding filter (as regulated by
USA and Canadian welding safety standards).
How It Works
Each Speedglas filter is a laminate of seven different
layers: a UV/IR filter, three polarizers, two liquid
crystal elements and a cover glass. The UV/IR filter
continually blocks harmful radiation, whether the
filter is ON, OFF, light or dark. Aided by surface-
mounted electronics, the proprietary liquid crystal
elements act as shutters that detect and react to the
welding arc by instantly shading the filter.
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AUTO-DARKENING FILTERS
Independent arc-detectors instantly sense the
welding arc, immediately triggering the
Speedglas filter to change from the light state
to the dark state.
Safety Products That Help Increase
Your Performance
Now welders can see their work, at comfortable
light levels, with constant eye and face protection.
Speedglas filters turn dark the moment an arc is
struck and transparent again when welding
stops–all the time with full UV/IR protection.
Auto-darkening eliminates the neck-strain of
“helmet nodding” while helping increase the
accuracy of electrode placement.
This, in turn, reduces the need for grinding and
rework. In addition, welders can get into tight,
cramped spaces with full protection and have a
clear view, making extremely awkward welds a
lot easier.
Introduction to
Auto-Darkening
Welding Filters (ADF’s)
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