Appropriate eye classroom lamp is good for children's eyesight, and brightness, blue light, the light color temperature is to buy the classroom often can see indicators, but these indicators are what mean?
Standard number to arrive?
Now as to find out together!
1.
According to the current 'standard of primary and middle schools classroom
led lighting and health', value, the average illuminance on the surface of the desks in the classroom should be not less than 300 lux.
The light intensity is high, we stimulated the retina, dopamine, it is can protect the growth of myopia.
2.
Blu-ray harm to the human eye, mainly manifested in myopia, cataracts, and macular degeneration eyes pathological damage and harm body rhythm.
The inside of the retinal photoreceptor cells of inductive blu-ray.
A strong blue light, or too strong ultraviolet ray, is bad for the human eye.
The eyes is the main source of blu-ray TV and computer screens.
According to the international standard, the LED light source products of blu-ray harm security level, from high to low respectively RG0, RG1 and RG2 level, RG0 level best.
3.
Color temperature, color temperature is a method of temperature measurement is commonly used in the field of physics and astronomy, this concept is based on a fictitious black objects, when the temperature of the heated to different different colors of light, the object appears as different colors.
Heating is like iron and iron turn red first, and then the yellow, finally will become white.
<
3000 k (warm
White with a red)
A stable, warm, 3000 -
Among 5000 k (
White)
Frank & gt;
5000 k type of cool and refreshing,
With blue and white)
Cold, then, how can we choose the classroom light that shield an eye?
1.
See 3 c3c authentication of all known as the 'mandatory product certification system', it is the Chinese government to protect consumers' personal safety and national security, enhance product quality management, in accordance with the laws and regulations to implement a product conformity assessment system.
The so-called 3 c Certification, is China Compulsory product Certification system, English name China Compulsory Certification, CCC abbreviations.
2.
See numerical reference to standard written on the product packaging, blu-ray hazard rating, as well as the product of color rendering index, intensity of illumination, uniformity and other values, if any, that are more trustworthy. 3.
Look at and buy lamp, need not too concerned about the wattage, actually but when look at, see if feeling feel dazzling, if the dazzling will choose carefully.
4.
Minimize the blu-ray overflow if it is the classroom of the lamp that shield an eye lamp bead is bare, blu-ray hazard possibility is very large, if it is made some optical processing, the blue light damage, basically can control, so suggest you buy invisible light bead or light bead is not directly exposed to the outside of the classroom lights.
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