What impact will the classroom lighting environment have on the eyes?
It is rare to see students without glasses on campus now. Although there are many causes of myopia, there are mainly two kinds of genetic factors and non-genetic factors. Among the non-genetic factors, there are students' eye hygiene problems, such as incorrect sitting posture, heavy study load, and excessive time watching electronic devices such as computers/mobile phones, etc., but poor classroom lighting environment is also the main reason for students' vision loss one.
What impact will the classroom lighting environment have on the eyes?
1. The illuminance and illuminance uniformity of the desk are generally lower than the national standard (national standard: the illuminance of the desk must be greater than 300 lux, and the illuminance uniformity is greater than 0.7). If students are in low illumination for a long time, and the illumination received by different desks in the same classroom is uneven, some students will struggle to read, read and write, which will easily cause visual fatigue.
2. No special blackboard lamps are used, or even blackboard lighting is not arranged, causing the average illuminance of the blackboard to be much lower than the national standard (national standard: blackboard illuminance ≥ 500 lux, uniformity greater than 0.8), and some students cannot see the text on the blackboard easily and are prone to visual fatigue cause myopia.
3. Most of the classrooms are directly installed with exposed fluorescent tubes. The light directly hits the students' eyes and produces glare, which distracts the students' attention, thereby reducing the learning efficiency, causing visual fatigue and inducing myopia. In addition, fluorescent lamps are generally equipped with magnetic ballasts, which have serious optical stroboscopic effects. In order to adapt to frequency changes, students' visual systems will frequently adjust themselves, causing visual fatigue.
4. The color rendering index is too low. The color rendering index of fluorescent lamps used in most classrooms is around 70 (national standard: the color rendering index of the light source should not be less than 80), resulting in color distortion, especially in art, chemistry, handicraft and other professional classrooms. Affects the correct judgment of the color of the object by the eye, so that the object cannot truly present its color, and over time will cause vision problems such as color blindness and color weakness.
5. High color temperature (6500K) fluorescent tubes are generally used in most classrooms (national standard: 3300-5500K color temperature light source should be used in classrooms), which has blue light hazards, blue light will cause irreversible damage to the retina, and vision is greatly threatened. High color temperature can easily cause students to be excited and easily fatigued because the light color is too white.
BENWEI LED educational lights, in line with national standards. The light-transmitting back panel of the classroom lamp is designed with fading curved surfaces on both sides, with anti-glare treatment, which can effectively prevent the eyes of teachers and students from dizziness, visual fatigue and improve the overall comfort of classroom lighting; the blackboard lamp has a separate lens and anti-glare baffle. The design makes the light source emitted by the lamp beads anti-glare and more uniform, effectively protecting the eyes of teachers and students. Create a bright and comfortable classroom light environment, so that children can learn more relaxed and at ease.
