目前印刷行业照相光源多采用日光灯、炭精灯、碘钨灯和氙灯等。一架照相机要用几支灯,亮度都很强,而照相又在暗室里,一会儿很亮,一会儿很黑,暗亮变化的幅度相当大,人的瞳孔在瞬息间也要相应地变化,很伤眼睛。有些单位给照相工人配备了防护镜(墨镜或茶镜),能解决问题,不过眼镜摘 At present, the photographic light source used in printing industry mostly uses fluorescent lamp, carbon lamp, iodine tungsten lamp and xenon lamp. A camera to use a few lights, the brightness is very strong, and photography in the dark room, while very bright, while very dark, dark changes in the magnitude of a considerable, people’s pupils in the twinkling of anise must change accordingly, it is Injured eyes. Some units have photographic workers equipped with goggles (sunglasses or tea glasses) that can solve the problem, but pick glasses