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本刊于96年第8期刊出“话说视保屏”一文后,收到许多读者来信、来电。现将大家关心的问题,请有关专家解答如下。 1.怎样选购和识别真假视保屏 凡是由阴极发射装置构成的显像管,工作时都会产生电磁波辐射,这种辐射波能穿透非金属物体,当辐射到人身体后能引起人体生物电流波动,并改变生物电流的正常流向,时间长了就会影响人身健康。因此,合格的“视保屏”放在屏幕前能让可见光通过,而把电磁波辐射
The magazine published in the eighth issue of 96, “the words of visual security screen,” a text, received many letters from readers, calls. Now we are concerned about the issue, please answer the following experts. 1. How to buy and identify the true and false visual insurance screen Any cathode-emitting device consisting of CRT, the work will have electromagnetic radiation, the radiation waves can penetrate non-metallic objects, when the radiation to the human body can cause the body’s biological current Fluctuations, and change the normal flow of biological current, a long time will affect the health of people. Therefore, the qualified “screen protector” on the screen before allowing visible light through, and the electromagnetic radiation