Can LED eye protection device really protect eyes?
2022-09-27
People can choose desk lamps only when reading and writing, and desk lamps are indispensable lighting tools in modern families. It mainly focuses light on a small area, which is convenient for work and study. According to statistics, Chinese students spend an average of 2-3 hours under the desk lamp every day, and the distance between the brain and the desk lamp is only 30-40 cm. According to a test report from the World Health Organization, the radiation value of high-frequency eye protection lamps is 40 UT to 400 UT.
This is much higher than the national standard of 0.12 UT. This is equivalent to three hours a day and nearly 1,000 hours a year. In particular, experts point out that teenagers’ brains are not yet fully developed, which may lead to mental disorders in the long run. However, because primary and secondary school students have too much homework, they need to write for a long time, which will aggravate eye fatigue and promote vision loss. According to statistics, 66% of Chinese primary and secondary school students have myopia to varying degrees, so if we want to protect our eyesight, what kind of desk lamp should we choose is the first problem we have to face.
Second, we should know how to judge a desk lamp.
The first element is illumination, which requires the brightness of the light source to be moderate, neither too bright nor too dark.
The second element is color. The most important thing about color is its definition. It’s better to be close to sunlight, so that we can see objects more clearly.
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