Nowadays, the lighting products are getting more and more abundant, and at the same time, the heavy pressure on the eyes makes many people wear glasses. As people pay more and more attention to eyesight, eye-protection table lamps quickly enter the eyes of consumers and businesses. 
There are more and more eye protection desk lamps, and the merchants are constantly making new ones, but the problems also arise. Ordinary consumers do not have professional knowledge and sophisticated instruments. When choosing a desk Lamp, they are often misled by advertisements, and it is difficult to select products that suit them, and even spend more money to buy low-quality products.
Many eye care products launched by the merchants all claim to adopt new technology, which can protect the eyes and prevent myopia. What kind of basis do these technologies have, and from what aspects to improve the quality of lighting, how to do it in protecting vision, The author will answer you one by one.
Diverse eye protection table lamp function
In order to obtain professional knowledge and scientific practical support, we came to the Beijing Hospital Ophthalmology Department and consulted with Mr. Xia Qun, a physician with more than 30 years of clinical experience and expertise in ophthalmology, and combined with clinical ophthalmic experience to provide us with eye protection. Knowledge of lighting.
We all know that lighting plays a vital role in vision. So what kind of lighting can be considered as eye protection?
Xia Qun Chief Physician (hereinafter referred to as Xia): Hello! The basic requirement for eye protection lighting should be sufficient brightness, stable light and local lighting and ambient lighting. The light color of the lighting should be neutral white.
How does the strobe of the light source affect vision?
Summer: The strobe of the light source brings about the light and dark changes in the lighting environment. The naked eye should constantly adjust to the light in the process of light and dark changes, resulting in muscle fatigue, easy to cause and increase myopia.
Light color corresponding to different color temperature values
At what color temperature is it more appropriate to work and study?
Xia Xiao: The general learning needs white light, which is neutral white. The color temperature of this kind of light is the light color that the human eye can adapt to in the long-term survival and evolution process. At the same time, it has relatively few chromatic aberrations during illumination.
What is the range of illuminance that is more suitable for work and study?
Summer: The working surface (desktop) suitable for learning should be above 500 lux, but the illumination is not as high as possible. Our recommended working surface illumination is between 500 lux and 1000 lux. Users don't have professional tools, so simply look at it, as long as the tabletop is full of light, bright enough, and not glaring, such lighting is appropriate.
Another point to note is that we can't just focus on the illumination of the work surface while studying, and the ambient illumination should also be taken into account. Some users will turn off the ceiling lamps in the room when using the desk lamp. It is not correct to think that this can concentrate attention. Insufficient ambient light, resulting in too much contrast between the working surface and the environment, it is also easy to cause visual fatigue, and the environment is too bright is not conducive to near-field operations. Therefore, pay attention to the ambient lighting when using the desk lamp.
Table lamp should not be placed directly in front
Where should we place the desk lamp when we use the desk lamp?
Xia Xiao: For most people who use right-hand writing, the light source should be placed on the left front so that the working surface can be brightly illuminated, and the shadow of the hand will not be projected in the center of the desktop, which has the least impact on the user. For the same reason, a person writing with his left hand can place the light source to the front right. The light source should be placed outside the line of sight as much as possible. Do not directly illuminate the eye. Otherwise, the glare generated by the light source not only affects the efficiency of the eye, but also easily causes fatigue.
What are the different needs of young people and older people for lighting?
Xia Xiao: The requirements for lighting for young people are basically the same. As long as the stable and bright illumination of the desktop is guaranteed, the elderly will have less light entering the eye due to physiological reasons, less than one-third of the young people, and the brightness of the illumination. The requirements will be higher and it is better to choose a brighter environment.
Led bulb lights
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