The best height of eye protection lamp from the desktop. In recent years, there are many brands of eye protection lamps on the market. Eye protection lamp can protect eyes, but the height of eye protection lamp is also very important. Optimum height of eye protection lamp from desktop.
The best height of the eye protection lamp from the desktop is 1. The best height of eye protection desk lamp is 40-50 cm away from handwriting. Too high and too low are bad for eyes. If the desk lamp is too low, the light range is very small, which is in great contrast with the surrounding light sources and hurts the eyes. If it is too high, the light will shine on the eyes intuitively, causing harm to the eyes, so the height of 40-50 is the best height of the desk lamp. When choosing a desk lamp, you should also pay attention. The desk lamp is not as high as possible, but the right one is the best.
Use skills of led eye protection lamp;
1, the irradiation range is wide enough. It is suggested that led eye protection lamps with irradiation range greater than 60 cm should be selected to cover the main areas commonly used in desks.
2, the light should be uniform enough, if the light is not uniform enough, it is easy to cause reflection. Glare is very strong, which will be higher than the brightness of visible light that human eyes can bear. Strong light leads to accelerated glycolysis of retina, which is prone to eye fatigue, such as eye pain, scalp tension and other uncomfortable feelings, which will lead to long-term vision loss.
3. The brightness and color temperature of 3.led eye protection lamp can be adjusted. It is suggested to choose eye protection lamps with adjustable brightness and color temperature, so that the appropriate brightness and color temperature can be selected according to different working environments and conditions to provide the most suitable light for screen reading.
4. The light source is stable and does not flash frequently, which is a very important cause of eye discomfort. It is suggested to choose LED eye protection lamp without stroboscopic driving chip, which is specially designed to stabilize the LED output light source, which can make the light source stable without stroboscopic.
5. Buy environmentally friendly and harmless led eye protection lamps. It is recommended to choose the ones with lower power, which can save electricity and reduce heat dissipation. In addition, the use of special aluminum alloy in materials is also a good choice, which is light, tough and has good heat dissipation ability.
The best height of eye protection lamp from the desktop 2. The correct use of eye protection lamp is as follows;
1, height: the most ergonomic height of the eye protection desk lamp is 40-50cm away from writing, which not only ensures sufficient reading illumination, but also has a certain brightness in the surrounding environment. If the desk lamp is too low, the range of light irradiation will be too small, and the eyes will be in a tense state of looking only near, which will easily make the eyes tired and accumulate rapidly, resulting in "light source myopia"; And if the desk lamp is too high, the light will directly illuminate our eyes, causing glare; At the same time, the intense light at close range will also cause the light on the retina to stay, which will tighten the eye muscles and accelerate the decline of vision. Therefore, it is best to choose an eye protection desk lamp with a height of 40-50cm.
2. Illumination range: the illumination range should be wide enough to ensure multi-angle projection and uniform distribution. It is best to choose an ultra-wide irradiation range of 60 degrees.
3. When using the desk lamp, turn on the headlights of the room together, which can reduce the gap between the light-using area and the surrounding environment and reduce the irritation to the eyes.
4. It is suggested not to read or write in too dark or too bright light, and take a rest every 1 hour 10 minute to reduce the burden on eyes and visual fatigue.
How to choose eye protection lamp?
1, tricolor fluorescent lamp is preferred.
Natural light is a mixture of seven different colors, suitable for reading. Students' eye protection lamps should also have soft light, not too strong, and use tricolor phosphors, which means that they will form natural light or be close to natural light in a proper proportion.
2, choose the ring light source
Generally speaking, when a single light source is used in home lighting, shadows will appear, which is not conducive to students' homework. The eye protection lamp should use a ring light source, so that the light distribution is more uniform, there will be no blind spots and shadows, and sufficient lighting space will be given to children, which can alleviate visual fatigue and make children's eyes more comfortable when studying.
3. Filter harmful blue light
The light you choose should avoid having too strong a light source and filter out harmful blue light, which will do less harm to your eyes. It is also suggested that the majority of students try not to stare at bright light sources for a long time and not to use their eyes too much.
4. Low energy consumption is the last consideration.
Students have more homework, so the study time is quite long, and the lights will consume more electricity. Parents should also consider whether to save energy and consume more electricity when choosing learning lights for their children. Try to choose those that consume less energy and reduce unnecessary waste.
The best height of eye protection lamp from the desktop 3 How to choose eye protection lamp?
Selection skill
Eye protection performance: Eye protection lamp should play the role of eye protection. Requirements: 1 No strobe and no radiation. It is more suitable to use direct current for eye protection lamp, which can really achieve good color rendering, without radiation 2 tube, and the light color is close to nature.
Poor quality eye protection lamps have low lighting frequency and poor quality, so it is difficult to protect eyes.
Safety performance: it is mainly required that the power cord and internal electronic wires have sufficient conductor cross-sectional area and insulation layer thickness. The minimum distance between the anode and cathode of the circuit board is greater than 2.5MM, with overcurrent protection device, and the lamp holder switch meets the national requirements. Poor quality eye protection lamps can not meet the above requirements, which may lead to fire and child injury accidents.
Non-toxic performance: high-quality eye protection lamp is made of high-quality non-toxic engineering plastics, which can be blended into lighter colors. Inferior eye protection lamps are mostly made of recycled plastic, which may be toxic and affect children's health. Recycled materials are generally dark in color and poor in appearance. Covering methods such as oil spraying are often used to match the appearance color.
After-sales service: brand products produced by large companies with standardized strength, after-sales service is more guaranteed, and customer interests can also be guaranteed.
Matters needing attention
When reading a book with eye protection lights at night, the surrounding environment should maintain a certain brightness, and it is best to make the space within a certain range bright, and the light source should be at the top of the house as far as possible.
So as to avoid "point-to-point" superposition with the light source of eye protection lamp. The brightness of the light source is 30 watts for ordinary bulbs and about 10 watts for energy-saving bulbs.
When using eye protection lamps, you should also pay attention to the direction of light and try to avoid direct light. The light is placed in front of the left side of the eyes, and the light forms an angle of 30 to 60 degrees with the desktop.
In addition, the light intensity of eye protection lamp is strong or weak. Try to choose eye protection lamps with soft light when buying, and don't use lamps with too much power, because too strong light will also hurt your eyes.
Eye protection lamp increases the stroboscopic light to tens of thousands of times per second through high-frequency electronic ballast, and the lamp tube will generate electromagnetic radiation due to high-frequency oscillation, so it is best to reduce the use time of eye protection lamp.
After reading for 40 minutes, relax your eyes and do exercise to prevent eye discomfort caused by excessive visual fatigue.
Of course, even if you use eye protection lamps, it does not mean that you will not be nearsighted, or the degree of myopia will not increase. To prevent myopia, we must pay attention to eye hygiene and prevent excessive use of eyes.