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发明名称
一种防护面罩
摘要
一种焊工用防护面罩,其视区分为有色和无色上、下两个部分。焊工用面罩通过有色镜6的上下滑动变化,调节无色区发生大、小变化,直止变为可视间隙5。不焊时调节使5变大,可清晰看见工件及现场。焊接时使5变为小缝隙。低头时视线经过5直达焊点,让焊条对准焊点,再抬头开始焊接,这时强光必须经过有色镜方可进入眼睛。通过5的强光则直射到固定带上,从而保护了眼睛,解放了手,提高了工效。
申请公布号
CN2341169Y
申请公布日期
1999.09.29
申请号
CN97239870.8
申请日期
1997.09.16
申请人
李锋
发明人
李锋
分类号
G02C7/10
主分类号
G02C7/10
代理机构
代理人
主权项
1.一种保护视力的防护面罩,其特征在于:视窗为双层镜片组成,无色镜片覆盖整个视窗、有色镜片(6)在无色镜片内,上下方向覆盖小于无色镜片,在视窗上部留有一个可调节高低的无色间隙(5)。
地址
710500陕西省西安市蓝田县体育路检察院家属区
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