The full spectrum of sunlight and incandescent lamps has a very high color rendering, but actually contains a lot of spectra that are difficult for the human eye to recognize and harmful to the human eye. High-quality lighting sources need to protect the human eye vision, can be based on the law of the relative visual sensitivity curve of the light source in the human eye is difficult to identify and harmful to the human eye spectrum filtered out. Assuming that the lighting source used to emit only three of the most sensitive spectral lines of the human eye, namely: blue, green, red. This seems to achieve the human eye on the demand for lighting at the same time to prevent the human eye can not be detected and harmful rays on the human eye vision. However, the color rendering of this hypothetical light source would be very 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 vision protection, fluorescent lamps and LED lights emit a spectrum of continuous spectrum with a peak line spectrum, which is more favorable to human eyesight than the full spectrum of sunlight and incandescent lamps.
Overall: LED lights and fluorescent lamps spectrum is more favorable to human eyesight than sunlight and incandescent lamps. And LED lights are a little better