北京市劳动保护科学研究所最近试制成功一种在镜片上镀制金属膜的新型防护眼镜──北劳高反射式防护眼镜。 金属有高反射的本领,能把大部分光波反射回去。北劳高反射式防护眼镜,在镜片上镀制了三层金属反射膜(底层为铬,二层为铜,三层仍为铬),膜层表面用无规聚丙烯胶合透明玻璃 Beijing Institute of Labor Protection, a successful trial recently made a new type of protective film on the lens plate coated with protective glasses ─ ─ North Lao high reflective safety glasses. Metal has a high reflective ability to reflect most of the light back. North Laoguo high reflective protective glasses, the lens coated with a three-layer metal reflective film (the bottom of the chromium, the second layer of copper, the three is still chromium), the film surface with random polypropylene transparent glass