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Can't see the blackboard clearly? How to deal with the reflection and glare of classroom lighting?

Can't see the blackboard clearly? How to deal with the reflection and glare of classroom lighting?

2021-11-18

According to the survey, some primary and secondary school students in the school reported that there were problems of reflection and glare on the blackboard in the classroom. They could not see clearly in class, and their eyes were sore after a long time. In addition, the lights in the classroom often flicker. Sometimes they are not too bright, or they are replaced only when they are broken.

Myopia mostly occurs in primary and secondary schools. According to the sampling survey, it is found that fluorescent lamps are mainly used in classrooms and blackboard lamps in most schools: there is a large demand for classroom lighting, and the lighting time is long; The most common problems of classroom lamps are that the blackboard will reflect, the light flashes, the light is too dark, etc; Classroom lighting is basically more than 6 hours a day, excluding bad weather. If the classroom eye protection lamp or classroom blackboard lamp fails to meet the requirements, it is easy to cause the above problems and affect the students' visual health.

In view of the uncomfortable glare and reflection caused by the blackboard lamp when students look at the blackboard, it is also found in the research that many classrooms are not equipped with classroom blackboard lamps, or substandard blackboard lamps are installed. In classroom lighting, the blackboard lamp should not only illuminate the blackboard, but also be uniform without glare to protect vision; The illuminance of blackboard lamp shall be more than 500lx, the illuminance uniformity shall be more than 0.8, and there shall be no blue light hazard, stroboscopic and color rendering index of more than 80.

On the other hand, we need to optimize the layout and light distribution of blackboard lamps and improve the quality of blackboard lamps through professional design. At the same time, the school needs to strengthen classroom lighting management, do a good job in the maintenance of lamps and testing classroom lighting indicators.

Therefore, to solve the problems of reflection and glare of classroom lighting, it is recommended that all primary and secondary schools and institutions (including public school classroom lighting, private school classroom lighting, private school classroom lighting, experimental school classroom lighting, educational institutions), classroom lamp OEM and OEM choose "Huahui lighting"!

As a promoter of Campus Lighting health, Huahui lighting has been deeply engaged in the lighting industry for 26 years. It is the first batch of qualified units for classroom high-quality lighting environment in South China. It is also the "top ten educational lighting brands" in China's lighting industry in 2020. It strictly controls the color temperature, glare, blue light, illumination and other problems in educational lighting to avoid the harm of bad lighting to students' visual health!

Huahui lighting has designed special lighting fixtures for classroom - led eye protection classroom lamp and led eye protection blackboard lamp, which meet the national standard. The average (constant) illuminance of the desk is greater than 300lx and the illuminance uniformity is 0.7; The blackboard maintains an average (constant) illumination of 500lx, and the illumination uniformity is 0.8; The color rendering index is greater than 90, and the color reduction is high; The grid anti glare design is adopted, and the glare value is less than 16, which is not dazzling; The color temperature is 5000K, comfortable and soft; The illumination of the whole classroom is uniform, without stroboscopic and blue light hazards.

The use of Huahui led eye protection classroom lamp and led eye protection blackboard lamp can be combined with Huahui lighting aiot intelligent education lighting overall solution. Through the self-developed intelligent lighting products, equipped with self-developed intelligent boxes (such as intelligent distribution box or intelligent air switch), the lighting mode that meets the needs of teaching can be easily switched by using intelligent full touch screen scene switch, remote control or mobile phone app, Realize the intelligent requirements of constant illumination, one key scene control, curtain linkage, ultraviolet sterilization and so on!

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