How to adjust the eyes?How does it affect reading?Tips for table lamps →

With the opening season

The children are going to start doing homework again

While picking the lamp night battle, while writing the book,

It is always inseparable from the guardian of a table lamp

How to adjust the table lamp?

The color temperature can be simply understood as the temperature of the color. When the color temperature is about 3000K, it is yellow, a bit dim; it is blue when it exceeds 5000K and starts to be dazzling.

For table lamps that can adjust the color temperature, when used at night, it is best to adjust the color temperature to 4000K.

GB/T 9473-2017 The "Requirement Requirements Requirements for Reading and Writing Works" stipulates that the color temperature is not adjusted, and the nominal related color temperature is higher than 4000K LED lamps, and there should be warnings including the following content: this lamp is not suitable for night use.

The illumination is the brightness of the light source to the desktop. If the illuminance is too low or the illuminance is uneven, it will be bright and dark, which will easily cause visual fatigue.

GB/T 9473-2017 "Reading the Performance Requirement Requirement Reading" is divided into two grades of Class A and AA levels. The AA standard requires a fan-shaped read and write area with a central half meter.

AA proves that table lamps have stronger lighting capabilities, but if they are too bright, it will also affect vision. We need to pay attention to two points when using AA -level table lamps.

• Low the flat sources or slightly higher than the eyes of children, so that the light should not be shot directly as possible;

• Low the brightness to make the child's eyes comfortable and avoid reflex light too bright and dazzling.

General reading and writing assignments are clearly required to "talk about" eye protection "again"

GB/T 9473-2017 "Reading the Performance Requirement Requirements Reading and Writing Operations" for the shading of the table lamp. When the height is 400mm from the desktop, the horizontal level is 600mm from the optical vitamin geometric center The brightness should not be greater than 2000cd/m².

According to the table lamp lighting test in the standard, some experts have suggested that the positioning of the table lamp should be slightly under the level of sight to avoid direct lighting of the eyes to cause visual fatigue.

However, the height of the child's eyes may be lower than the height of the desktop. Therefore, the height of the table lamp should be adjusted according to the actual height of the child's eyes.

How to put the table lamp?

Should the table lamp be placed on the left or right? Or is it directly? The desk lamp is not right, it is easy to reflect the glare on the book, affecting the reading effect.

The "Iopia Prevention and Control Guidelines such as preschool, elementary school, middle school, etc." issued by the Ministry of Education advocated that "when the light is insufficient, the dual -light source lighting should be performed through table lamps, and the table lamp should be placed on the opposite side of the writer."

In order to avoid reading, the table lamp should be placed on the slope of the usual hand, so that the shadow is projected into the back side of the usual hand.

The angle of the lampshade should also pay attention to let the lights be shined directly to books and screens instead of shooting on the face. If you can easily see the glare of the bulb and the periphery of the lampshade, it means that the angle needs to be adjusted.

Can't the bedroom light turn on?

If you turn off the headlights, the entire room is only bright around the table lamp. This kind of bright and dark differences can cause uneven illumination within the eye range, causing the lighting tissue of the eyes -the pupils, to keep adjusting the size and inducing eye fatigue.

Experts suggested that when using table lamps at night, the main lighting light should be turned on to ensure sufficient light brightness, avoiding too much contrast between the bright light spots and the surrounding areas in the reading area, causing eye fatigue.

Regulating our table lamps can create a more comfortable eye environment, but relying on table lamps cannot protect our vision. It is important to do homework, but it is also necessary to combine and rest, ensure sufficient sleep every day, and participate in outdoor activities.

Edit: Wang Jiaxin

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