Darkening filter comprising a non-uniform pattern of switchable shutters
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United States of America
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Nov 26, 2024
Grant Date -
Aug 11, 2022
app pub date -
May 19, 2020
filing date -
May 19, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure relates to darkening filters 10, 10′ which are suitable for selectively darkening an optically transmissive window 20 for protection from light, in particular from high intensity light. The darkening filter 10, 10′ is mounted in a forward-facing optically transmissive window 20 and comprises a non-uniform pattern 30 of switchable shutters 32 capable of being switching to at least a dark state and a light state by a shutter control system 40. The present disclosure also relates to a method of operating such darkening filters 10, 10′. The present disclosure furthermore relates to vision-protective headgears 100, 100′, welding shields 110 and panes 120 comprising the darkening filters 10, 10′ according to the present disclosure.
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