Glare protection device
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United States of America Patent
Stats
-
Mar 9, 1999
Issued Date -
N/A
app pub date -
Aug 12, 1997
filing date -
Jul 13, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Electro-optical glare protection device is disclosed for use with protective glasses, protective helmets or protective masks with at least one optical detector, especially a photodiode, with an electro-optical glare protection plate incorporating at least one liquid crystal cell, and with an electronic circuit for the adjustment and setting of the optical transmission of this glare protection plate. The protective device comprises a non-optical detector and a switch connected to the electronic circuit for adjusting the optical transmission of the glare protection plate. The switch links the signals produced by these detectors with each other as an and/or circuit. The electronic circuit generates corresponding switch signals.
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