The current primary and middle school students myopia rate is high, more and more people advocate for vision improvement of the students and the classroom health, especially the parents of students, pay special attention to the classroom, education industry is also out of the relevant standards, so the classroom what is commonly used in lamps to meet the national standards?
From professionals understand that the classroom
light to meet the national standards: light, no glare, high color rendering index, stroboscopic light from harm, colour temperature is moderate, and no harm of blu-ray, a total of six standards;
Education acceptance, is testing the six standards.
So, if education this six standard not standard, what are the dangers?
As a specific to find out together!
A, lower education illuminance what harm?
The primary and secondary school classroom
led lighting and hygiene standards, points out that the classroom should be installed manually, and classroom desks to maintain average illuminance on the surface of the value is not less than 300 lx, the intensity of illumination uniformity should not be lower than 0.
7.
The classroom blackboard should establish local lamp, for its average illuminance value not less than 500 lx, intensity of illumination uniformity should not be lower than 0.
8.
If the classroom is far lower than the standard values, the pupil of the eye will be open to a lot, and in order to absorb enough light, the student's head under can subconsciously, cause the eyes from the book too close, if often so close reading, writing, will make the eyes adjust nervous, forming a myopia.
LED the classroom lamps and lanterns that shield an eye (
The classroom lights with blackboard lights)
The intensity of illumination evenness is greater than zero.
95, classroom desks to maintain average illuminance on the surface of the value of 300 lx, classroom blackboard to maintain average illuminance value is 500 lx, bright the whole classroom environment, effective prevention of myopia.
Second, the education of glare from harm?
In the primary and secondary school classroom lighting and health standard 'pointed out that the classroom unified glare value (
URG)
Should not be more than 19, eyes be blinding light notes for a long time.
LED lamps and lanterns of eyecare classroom through effective optical design, the whole lamp anti-dazzle value & lt;
16, assure the light is downy, not dazzling, it does not hurt the eye.
Third, the education of color rendering index is low harm?
The primary and secondary school classroom lighting and hygiene standards, points out that the classroom light source color rendering index should not be less than 80.
Low color rendering index influencing students' eyes to the color of the object recognition, object cannot show its true colors, if this situation continues, easy to cause students color blindness or color blindness and other problems.
Four, education of stroboscopic light damage?
Stroboscopic light easy to distract students' attention, reduce the efficiency of learning.
The eyes of students in order to adapt to the light frequency change, need to constantly adjust independently, can make eye for a relatively long time to produce extreme fatigue.
Five, the education low color temperature on the high side of the dangers of what?
In the primary and secondary school classroom lighting and health standard 'pointed out that appropriate USES 3300 k - of the classroom
5500 k color temperature of light source.
High temperature white color is too light, easy to cause the students excited, after once hyperactive, result in visual fatigue, decreased attention, reduce the learning efficiency.
LED eye classroom control in 4000 k color temperature of lamps and lanterns --
5500 k promise that move light, close to the sun, will not cause visual fatigue, improve the learning efficiency.
Six, education no harm of blu-ray what harm?
Education referred to in the blue light, it is a kind of high-energy visible light, the shortwave blu-ray has a relatively high energy ray, the wavelength of the blue light will make the eye in the macular area increased amount of toxin, a serious threat to the health of the eye.
Due to the wavelength of the blue light is short, focal point is not at the center of the retina, but from the retina more depend on the location of the point.
Want to see clear, eye of time is in nervous condition, cause eye fatigue.
Classroom, therefore, need to be careful to choose lamps and lanterns of education, recommend the classroom that shield an eye lamps and lanterns, classroom led the lamp that shield an eye, color temperature 5000 k, close to natural light, the light bright and soft, students under this kind of color temperature of light source, speaking, reading and writing, and more comfortable with the eye, is not easy to cause eye fatigue.
In addition to the color temperature, we also adopted the grille of lamps and lanterns of anti-dazzle + back fill light design, good pervious to light, high intensity of illumination and uniform, high color rendering index, good color reducibility, no stroboscopic, no harm of blu-ray, give the classroom bright and comfortable light, and glare influence say bye ~
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