Which kind of light is good for children's eyesight

Everyone should know that the myopia rate is gradually increasing in our country. Ah, and myopia not only affects people’s lives, but also has a significant impact on their work and study. The main cause of myopia is not only the frequent use of some electronic products, but also the lighting that people live in for a long time, which can cause certain damage to people's eyes. So many parents have questions, what kind of lighting should children live in to be better for their eyesight?

What are the light sources of children's desk lamps?

At present, there are four main light sources for children's desk lamps on the market: incandescent lamps, energy-saving lamps, fluorescent lamps and LED lamps. The four light sources have their own characteristics and the degree of impact on children's eyesight is also different. I hope everyone can compare their advantages and disadvantages comprehensively and choose the most suitable one.

Introduction to the advantages and disadvantages of four light sources

Incandescent lamp

The advantages of incandescent lamps are high color rendering, no flicker, and the ability to be used in special conditions such as humidity and salt spray. The disadvantages are excessive heat generation, and long-term close-range use can easily cause problems such as dry eyes, fatigue, and brain swelling. The color temperature of incandescent lamps is around 3000K. At this color temperature, the light appears yellow and is not very bright. It is suitable for use in bedrooms and other places where an atmosphere needs to be created. It is not suitable for use as a children's desk lamp as it can easily cause myopia in children.

Incandescent lamp advantages: no flicker, high color rendering.

Disadvantages: high heat generation. (Desk lamps are used for close-range lighting because they are close to the head and last for a long time. When incandescent lamps are used as light sources, the most intuitive reaction is dry eyes and swollen head because of their high heat generation.)

Energy-saving lamps

The advantages of energy-saving lamps are longer life and more energy saving, while the disadvantages are higher color temperature and unstable light source. The color temperature of energy-saving lamps is as high as 6000K. At this color temperature, the light is pure white and very bright. When used as a table lamp at a close distance, energy-saving lamps are prone to dazzle and affect vision. In addition, most businesses now use fluorescent powder as the light-emitting medium of energy-saving lamps. The colors of fluorescent powder are complex and can easily cause damage to children's eyesight. It is recommended that you do not choose them.

Advantages of energy-saving lamps: they save electricity and have a longer lifespan than incandescent lamps.

Disadvantages: unstable light source, high color temperature, easy to dazzle when used as close-range lighting. Fluorescent lamps (although some merchants claim that their desk lamps are three-primary color desk lamps, they essentially use fluorescent powder as the light-emitting medium. The three-primary color is just a gimmick for merchants to promote. In addition, the three-primary color has a lot of light worse than ordinary single-color fluorescent lamps because the fluorescent powder used is colorful, so it is not recommended to use)

Fluorescent lamp

The advantages of fluorescent lamps are good color rendering, high luminous efficiency and long service life. The disadvantage is the problem of mercury pollution. If used as a desk lamp, it may affect the health of children.

Color temperature: There are three main commonly used color temperatures: around 3000K, around 5000K, and around 6000K.

The most common representative of color temperature around 3000K is incandescent lamp. The light is yellow, which makes people feel warmer, but visually the brightness is not sufficient. This kind of color temperature is usually used to create an atmosphere and is more commonly used in rooms to create a warm feeling.

The color temperature is around 5000K, which is the color temperature of sunlight around nine o'clock in the morning. The light is light yellow, bright but not dazzling. With the right brightness, the light will feel very comfortable.

The most common energy-saving lamp has a color temperature of around 6000K. The light is pure white and visually feels very bright. However, if it is used in a table lamp for close-range lighting, people will feel dazzling and uncomfortable due to its pale light.

PS: There are some LED desk lamps on the market that claim to have adjustable color temperature. However, since the color temperature of LED light sources is designed to be fixed, this type of desk lamp uses two different colors of light sources with different brightness ratios to achieve the function of changing the color of the light. This type of desk lamp should be a dimming color desk lamp in the precise sense, not a color temperature desk lamp. Also, due to the mixture of two colors of light, the light is messy and impure, which may cause certain damage to the eyes.

Brightness: Appropriate brightness can make the light softer and more comfortable.

If the brightness is too bright, we will feel dazzled, and if the brightness is too dim, it will be difficult for us to see things, so the right brightness is very necessary. However, since everyone's sensitivity to brightness varies greatly, it is difficult for ordinary desk lamps to meet everyone's personalized needs for light. If you want to achieve the purpose of real eye protection, the right brightness is very necessary, so when purchasing a desk lamp, it is best to buy a dimmable desk lamp. (Dimmable desk lamps refer to stepless dimming. Some graded dimming desk lamps are essentially the same as non-dimmable desk lamps. It is difficult to meet everyone's personalized needs, so they are not suitable.)

Optical processing: Since the light emitted by the desk lamp is mixed with stray light

The light emitted by a desk lamp will be mixed with other light and may cause glare, so reasonable optical processing technology becomes very necessary.

LED lights

The advantages of LED lights are that they are green and environmentally friendly, the light is pure, the color rendering index is high, there is no radiation, there is no flicker and the service life is long. LED lights can be said to be a real eye-protecting light source. According to research, the light of LED lights is very similar to sunlight, and the human eye is most receptive. At present, LED lights have been promoted in countries around the world, especially in some European and American countries, where the use of LED lights has become very common.

LED lights: LED lights are widely promoted by countries around the world due to their long life, environmental protection, and light similar to sunlight. They have now been fully popularized in some European and American countries. Qualified LED lights have pure light, high color rendering index, and long life. Moreover, due to the nature of their light-emitting diodes, they must be powered by direct current to work. This essentially determines that they are radiation-free and flicker-free, making them truly eye-protecting light sources.

The above four light sources have been introduced. In summary, it is not difficult to see that LED table lamps are more suitable for children. When purchasing, try to choose dimmable LED table lamps. Such table lamps can adjust the brightness of the light according to their own needs, which is more conducive to protecting the eyes.