With heavy classwork and excessive use of electronic devices, there are more and more "small myopia glasses". Parents, in addition to manipulating children to touch electronic devices as much as possible, are also harsh on the eye-protection lamps they need when they study and train, and eye-protection lamps are gradually becoming favored.

In the lighting market, for LED eye protection lamps, stores have successively produced marketing billboards such as "no flicker", "prevention of myopia", and "protection of eyesight". The styles are various and the prices vary. Parents who want to buy usually feel that Dizzy, unable to find a direction. How to choose the eye protection lamp for children to learn? Does led eye protection light protect eyesight?

Illumination is divided into two levels: A-level and AA-level

What do parents pay attention to when choosing led eye protection lamps such as chromaticity, led color temperature and blue light indicator values mean? In the presence of the sun, the compressive strength of outdoor lighting fixtures can reach more than one hundred thousand lux, and it is likely to be dozens of lux in a room. Lux is an illuminance company. According to the current standard "Hygienic Standard for Daylighting and Lighting in Primary and Secondary School Classrooms", the average illuminance value of the surface of the desks and chairs in the class should be no less than 300 lux.

Illumination is simply whether the light is bright enough. The greater the illuminance value, the better the visual experience of reading and writing skills during work, and the higher the work efficiency. The uniformity of illuminance reflects the condition of the boundary line between light and dark with lighting effects. The pupils of human eyes will be closed due to the difference in light. If the sun is not symmetrically irradiated, the pupils of the eyes will continue to be closed, and human eyes will become fatigued easily. The smaller the scale of illuminance uniformity is, the smaller the brightness and darkness changes from the lamp, and the more comfortable for human eyes. The illuminance is divided into two levels of A-level and AA-level in the regulations of "GB-T9473" (Characteristic Specifications for Reading and Writing Ability Work Eye-protecting Desk Lamps) implemented on April 1, 2021. To achieve 300 lux is A grade, it is the least line, AA grade will be higher, it is 500 lux, AA grade products will be stronger than A grade products.

Blu-ray damage is divided into four levels

Inside the macula of the eye fundus, the light-sensing somatic cells feel blue light after viewing. Too strong blue light or too strong ultraviolet light is not good for human eyes. Blue light is a component of white light, and it is unlikely to be completely eliminated. Only excessive blue light and long-term direct blue light will endanger the safety of the eyes. The key source of blue light is the monitors on TVs and computers.

International lighting fixtures are well studied and experienced many basic scientific researches. The blue light damage of lighting fixtures to human eyes is divided into 4 levels: non-dangerous (RG0), low-risk (RG1), and medium-dangerous (RG2). Category) and high-risk category (RG3 category). The blue light that parents pay attention to is obtained by using a spectrum analyzer to illuminate and statistically analyze the data. The blue light is less than 100, which means it belongs to the zero danger level, which means it is not dangerous. Generally, the eye protection desk lamp is stipulated to be RG0, in other words, it cannot exceed 100. To put it bluntly, RG0 is called no harm. So far, in the specification, RG0 and RG1 are classified as qualified products within the allowable range.