Four points of high-quality light source

1. The light from the light source is full-color light. The so-called full-color light, that is, the spectrum is continuously distributed in the visible range of the human eye, and the vision is not easy to fatigue.

2. There should be no ultraviolet or infrared light in the spectral composition of the light.

Because of the long-term excessive exposure to ultraviolet light, it is not only easy to cause keratitis, but also damage the lens, retina, choroid and so on. Infrared rays are easily absorbed by water, and excessive infrared rays are absorbed in a large amount when the lens of the human eye is concentrated. Over time, the lens will be denatured and cause cataracts.

3. The color temperature of light should be close to natural light.

Color temperature is a quantitative indicator of the color of light by temperature. Because people live under natural light for a long time, the human eye has strong adaptability to natural light and good visual effect. The test proves that the visual contrast sensitivity under natural light conditions is higher than 5%-20% of artificial light.

4. The light is a flashless light.