Eye protection device for welding helmets and the like
作者： Arthur L. Berman , Jeffrey K. Fergason , John D. Fergason , James L. Fergason
DOI:
关键词: Eye protection 、 Through-the-lens metering 、 Lens (optics) 、 Welding helmet 、 Engineering 、 Shield 、 Optics 、 Welding
摘要: A welding helmet includes a shield (2) and lens (5) which has both rapid driven to dark state during eye (10) protection is provided welding, clear maximum clarity for viewing through the when not occurring, fail that provides condition protection, example, if power were welding.
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