Are eye protection desk lamps useful?
It is important for parents to protect their children's vision health. Therefore, the self-eye protection table lamp has become more and more popular and favored by the majority of parents since its appearance. But is the eye protection table lamp useful? What brand of eye protection table lamp is good? I think many people do not understand, or even know what the eye protection principle of the eye protection table lamp is. The following editor will answer the question of whether the eye protection desk lamp is useful?
Eye protection lamps, as the name suggests, are lamps with eye protection functions, which can prevent the occurrence of myopia, so the main users of eye protection lamps are students. So, is the eye protection lamp useful? What is the working principle of the eye protection lamp?
In fact, there are generally two working principles of eye protection lamps. First, the frequency conversion electronic ballast is used to increase the electric frequency of the lamp to 30-50kHZ, so that the human eyes will not feel stroboscopic during the use of the eye protection lamp, thereby reducing visual fatigue. At the same time, the eye protection lamp also uses three-color phosphors to soften the brightness of the light, reduce the irritation of the light to the eyes, and prevent myopia; the second is to use a DC ballast to convert alternating current into direct current, and then use direct current to light up the eye protection In this way, there is basically no stroboscopic situation, thereby reducing the fatigue of eyesight, and at the same time avoiding electromagnetic interference.
Is the eye protection lamp useful? It can be seen from the above eye protection lamp principle that the eye protection lamp has a certain eye protection effect. It is very suitable for people who need to use their eyes for a long time. Whether the eye protection table lamp can achieve real eye protection, since we have to look at eye protection, we have to look at their optical performance. We will not do in-depth interpretation of the appearance and function that have nothing to do with eye protection. Whether the eye protection lamp is really eye protection, we mainly focus on the following four aspects: 1. Illumination and illumination uniformity 2. Stroboscopic 3. Comparison of CRI, color temperature, fidelity, saturation and other parameters 4. Spectral curve.
