Does the light of the LED tube have any effect on the human body?
The spectrum emitted by fluorescent lamps and LEDs has a peak linear spectrum based on a continuous spectrum, which is different from the full spectrum of sunlight and incandescent lamps. Although sunlight and incandescent lamps with full spectrum have high color rendering, they actually contain many spectrums that are difficult to distinguish and harmful to human eyes. A high-quality lighting source needs to protect the eyesight of the human eye. According to the law of the relative visual sensitivity curve, the spectrum that is difficult to distinguish and harmful to the human eye can be filtered out of the light source. It is assumed that the illumination source used only emits the three most sensitive spectral lines of the human eye, namely: blue, green, and red. This seems to meet the human eye's need for illumination while preventing the human eye from being undetectable and harmful rays from affecting the human eye's vision. But the color rendering of this hypothetical light source will be poor. Therefore, in order to ensure color rendering, our ideal light source still needs to have a continuous background spectrum. Therefore, only from the perspective of protecting eyesight, the spectrum emitted by fluorescent lamps and LED tubes has a peak linear spectrum on the basis of continuous spectrum, which is more beneficial to human vision than full-spectrum sunlight and incandescent lamps.
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