PROTECTIVE LIGHT FILTER Russian patent published in 1997 - IPC

Abstract RU 2086219 C1

FIELD: electric are welding of metals. SUBSTANCE: protective light filter uses a dimmed glass with one mirror surface and a glass intended for protection of the above dimmed glass fastened in a common frame with a gap preventing the contact of their surfaces. The mirror surface of the dimmed glass is positioned on the side of the radiation source. EFFECT: enhanced reliability. 3 cl

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RU 2 086 219 C1

Authors

Koshin Mikhail Ivanovich

Dates

1997-08-10—Published

1995-08-14—Filed