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电大学员在3年的学习期间,平均每天要看4～6小时的电视节目。如此长期长时间的收看电视,对眼睛是否有害?在保健上要注意些什么?这是每个电大学员关心的问题。下面将根据眼睛的生理机能、射线对眼睛的损伤和如何保健用眼提出如下忠告,希望能引起你的注意。一、眼与电视机的直线距离不要小于1.5米。因为①电视机荧光管发射的电子束中含有一部分X射线,而且彩色电视机比黑白电视机产生的辐射更
TVU students in the three-year study period, on average every day to see 4 to 6 hours of television programs. Such a long period of time watching TV, the eyes are harmful? What should pay attention to health care? This is a concern for every TV university students. The following will be based on the physiological function of the eye, ray damage to the eyes and how to care for the eye with the following advice, hoping to attract your attention. First, the linear distance between the eye and the TV not less than 1.5 meters. Because ① TV fluorescent tube emits a part of the electron beam contains X-rays, and color television sets than black-and-white television radiation generated more