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焊接面罩是指在焊割作业中起到保护作业人员安全的工具。是集光学、电子学、人体学、材料学等学科为一体的高科技产品。采用优质的LCD与镀玻璃组合为遮光镜片,镜片上的光感应系统能在瞬间探测到电焊时弧光的产生与消失,迅速驱动液晶体遮光变色等以达到安全有效的过滤有害光,从而保护焊工的眼、面部避免弧光辐射的伤害。根据功能可分为;普通型焊接面罩(根据不同暗度的墨绿色镜片,过滤有害辐射);自动变光焊接面罩(采用LCD光电控制技术,实现迅速的明暗态自动转换,更方便更高效率)