With the development of high technology and the popularization of electronic products, the group's eyesight is constantly declining. The rate of myopia in children is increasing year by year, and the degree of myopia in adults is also increasing year by year. The main reason for this phenomenon is the blue light in electronic products.

But what is Blu-ray?

There is no separate white light in nature itself, and blue light is mixed with green light and yellow light to present white light. Green light and yellow light have less energy, less eye irritation, short blue light wavelength, high energy, LED, computer background light artificial light source retains a relatively large amount of blue light, which makes the artificial light whiter and brighter. Some comparisons The bright white light gives people the feeling of being bluish all the time, which is caused by the high proportion of blue light.

The visible light emitted by various new artificial light sources such as computers, TV screens, and energy-saving lamps contains a large amount of short-wave blue light with irregular frequencies. The wavelength is between 400~500nm.

So what are the hazards of blue light to the human eye?

1. It may directly reach the retina, resulting in different degrees of myopia

2. May cause fundus damage after cataract surgery

3. May stimulate brown pigment, which is an important cause of macular and freckles on the skin

4. Blurred vision may have occurred, leading to visual fatigue and VDT syndrome

5. May cause glare

6. It may inhibit the secretion of melatonin, disturb sleep, and increase the incidence of major diseases.

Any advice on the dangers of blue light?

1. The lighting effects of blue light hazard and "enriched blue" are not unique to LED lighting products. Some metal halide lamps and some fluorescent lamps have existed for a long time.

2. Under normal circumstances, only LED lighting products with blue light hazard classification of Class 1 and below can be used indoors.

3. Blue light is an important part of white light, so it is one-sided to say that blue light is filtered out under normal circumstances. It is correct to select the light composition and quality according to the human circadian rhythm.

4. Returning to the basics, simulating the illumination, light color and changes under natural conditions, is a higher level of lighting product design, manufacturing and lighting design and implementation.

For special groups and special occasions, it can adjust the reasonable spectrum and light color that has been proved. In this regard, LED lighting is relatively effective.

Source: Baidu Encyclopedia, Sohu, Changjiang Net

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