Antiglare device to protect eyes during welding and immediately

Details Antiglare device to protect eyes during welding and immediately Antiglare device to protect eyes during welding and immediately

1994-04-06

1995-08-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250205, 2 8, G01J 120

Patent

active

054442320

ABSTRACT:
An antiglare device, as used in the welding and cutting torch technology, comprising an electro-optical protective light filter and a controller. The electronics of the controller is designed in such a manner that in the case of a glare the protective light filter dims as rapidly as possible, but as soon as the source of glare light extinguishes the brightening time can be controlled as a function of the duration and intensity of the glare light.

REFERENCES:
patent: 3575491 (1971-04-01), Heilmeier
patent: 3873804 (1975-03-01), Gordon
patent: 4237557 (1980-12-01), Gordon
patent: 4240974 (1980-12-01), Hornell
patent: 4279974 (1981-07-01), Belgorod
patent: 4293757 (1981-10-01), Niemi
patent: 4694141 (1987-09-01), Hahn
patent: 4701021 (1987-10-01), Le Pesant et al.
patent: 5248880 (1993-09-01), Fergason
patent: 5252817 (1993-10-01), Fergason et al.
patent: 5315099 (1994-05-01), Gunz et al.

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