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在工矿生产中,常常存在热源和光源,它们地发生着辐射线,如炼钢高炉、电焊作业发生的红外线、紫外线、强光等。这些辐射线对眼睛会产生一定程度的损伤。红外线主要引起白内障和视网膜损伤;紫外线主要引起电光性眼炎、强光主要引起眩晕、视力下降等。为了预防辐射线对眼睛的伤害,生产人员常常需要配戴有一定遮光性能的防护眼镜,使眼睛既能观察到工件和光源的变化情况,又能避免辐射线对眼睛的伤害。有的从事金属切削的车工配载平光防护眼镜,这是为了防止金属屑末溅入眼内。防护眼镜可分吸收式和反射式两种。吸收式防护眼镜主要是在玻璃片中掺入某些金属氧化物。由于加入的成分不同,镜片有茶色、绿色、蓝色等。反射式防护眼镜是在眼镜镜片表面镀上反射膜,可反射掉紫外线、
In industrial and mining production, there are often heat sources and light sources, they occur in the radiation, such as steelmaking blast furnace, welding operations occurred in infrared, ultraviolet, light and so on. These radiation will have a certain degree of damage to the eyes. Infrared rays mainly cause cataracts and retinal damage; ultraviolet light mainly caused by electro-optic ophthalmia, glare caused mainly by dizziness, decreased vision and so on. In order to prevent radiation damage to the eyes, the production staff often need to wear protective glasses with a certain shading performance, the eye can not only observe the changes of the workpiece and the light source, but also to avoid radiation damage to the eyes. Some engaged in metal cutting car workers with flat goggles, which is to prevent metal spilled into the eyes at the end. Protective glasses can be divided into two types of absorption and reflection. Absorption goggles are mainly incorporated in the glass sheet of certain metal oxides. Due to the different ingredients added, the lens has brown, green, blue and so on. Reflective goggles lens is coated with a reflective film on the surface of the lens, which can reflect UV light,