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Working on a computer for long periods of time can make it difficult to concentrate your eyes, and staring at a screen can reduce the number of blinks you use by about half, resulting in dry, itchy or watery eyes. Remember the 20 20 20 rule, take a 20-second break every 20 minutes in real time, and focus on something 20 yards away from the screen to help relax your eyes.
When you're sitting in a chair, your fingers can easily touch the screen, which means it's too close! Try the 1 3 method to calculate the correct distance: move yourself away from the screen until you just feel blurry, divide by 3 and you'll have the ideal distance.
Avoid facing or facing away from light, and if you are going to use your computer near a window, try adding adhesive filter tape to reduce the impact of light.
When working, it is best to keep the binder on the shelf, which not only keeps the eye level, but also reduces the time when the eyes travel between two different distances for a long time.
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As the name suggests, eye protection lamps are lamps that protect eye vision and relieve eye fatigue. So how to identify eye protection lamps? What is the difference between eye protection lamps and ordinary lights?
I believe that everyone wants to buy eye protection lamps, but I don't know how to choose the right eye protection lamp for myself in a dazzling array of lamps, so let me take you to understand how to identify eye protection lamps? The difference between eye protection lamps and ordinary lights. As the name suggests, eye protection lamps are lamps that protect eye vision and relieve eye fatigue.
So how to identify eye protection lamps? What is the difference between eye protection lamps and ordinary lights? I believe that everyone wants to buy eye protection lamps, but I don't know how to choose the right eye protection lamp for myself in a dazzling array of lamps, so let me take you to understand how to identify eye protection lamps?
The difference between eye protection lamps and ordinary lights.
How to choose an eye protection lamp
1.Don't be greedy The key to buying eye protection lamps is to "protect your eyes", don't buy products that are not eye protection because of factors such as "style", "**", "discount", etc., don't make it a lack of soy sauce at home to buy back vinegar cups.
2.Detection of electromagnetic radiation electromagnetic radiation is invisible and intangible, is to fool customers, in fact, it is very simple an electromagnetic radiation detector can be proven, but many eye protection lamps with no radiation banner are afraid to give consumers detectors, why? There are ghosts in my heart, and based on this, we can know that this kind of eye protection lamp is also unreliable in other indicators.
3.Identify whether there is glare for whether there is glare is very good to identify, where the lamp tube is directly exposed or only a layer of transparent plate is added, there is glare, because the child sits in front of the desk and looks up or raises his head slightly will be stabbed by the strong light, even if the faint light like a flashlight will make people dizzy if you look directly at the lamp beads, not to mention the eye protection lamp, just like such an obvious defect, the seller will also give you an oath that it is anti-glare.
What is the difference between eye protection lamps and ordinary lights?
Let's first compare the difference between eye protection lamps and ordinary lights, so that you can better know how to identify eye protection lamps. Long life color; temperature proximity; Sunlight truly restores the natural color of objects; There will be no flicker.
1.To judge the illuminance value, when purchasing an eye protection lamp, the merchant is required to use an illuminance meter to measure the illuminance value on the irradiated surface under different ambient light conditions. Whether these illuminance values are in line with international lighting standards, if so, the lamp can have eye protection, otherwise not;
2.The greater the difference, the lower the color rendering index, the worse the quality of the light, and the less likely it is to meet the values specified in international lighting standards.
3.Judging the strobe, use a mobile phone or camera to point the camera to the light emitting place of the Mengming quasi-eye protection lamp, if there are grille-like stripes on the screen, it indicates that the eye protection lamp must have a strobe problem, and it definitely does not meet the international lighting standards.
So how to identify the trouser eye lamp? I believe I have explained the difference between eye protection lamp and ordinary lamp, of course, the choice of eye protection lamp is mainly my own experience, not the brighter the better, you should choose the light (brightness, light color) that makes the eyes comfortable, in short, you should choose carefully when choosing eye protection lamp.
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1. Traditional fluorescent lamps (fluorescent lamps). The alternating current in China is 50Hz, which is 50 changes per second. However, the traditional fluorescent lamp is emitted by low-pressure gas discharge, the fluorescent afterglow time is very short, and the strobe phenomenon is the most serious after the alternating current is turned on, although such a frequency is not perceptible to the human eye, but studies have shown that these flashes will make long-term users feel eye fatigue, and in severe cases, it will lead to vision loss and so on.
2. Electric heating lamps (incandescent lamps, halogen lamps). Ordinary incandescent lamp is actually a kind of eye protection lamp, because the alternating current first heats the filament, the filament heats up, and then emits light, because the filament has a heat capacity, so when the power supply changes, the filament is still hot, and the afterglow is much longer than that of fluorescent lamps, so that the change of light and shade will not be as fierce as the rise of fluorescent lamps (fluorescent lamps).
3. High-frequency lamp. High frequency, that is, changes tens of thousands of times per second, because the human eye has no time to change with it, and can not feel the change at all, so it can be said that it is "unchanged", to achieve the eye protection of the eye and some upgraded versions of high-frequency lights, considering the impact of light reflection on the human eye, some of the joke brothers have increased the filter, which can effectively increase the required light and reduce the unwanted light, but there is still no way to completely solve the problem of stroboscopy.
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Eye protection lamps are very common in our daily life now, and people have higher and higher requirements for their own health, so there are more and more eye protection lamp products on the market. Next, I will introduce to you what types of eye protection lamps are.
1. Traditional daily calendar lamp (fluorescent lamp). The alternating current in China is 50Hz, which is 50 changes per second. However, the traditional fluorescent lamp is emitted by low-pressure gas discharge, the fluorescent afterglow time is very short, and the strobe phenomenon is the most serious after the alternating current is turned on, although such a frequency is not perceptible to the human eye, but studies have shown that these flashes will make long-term users feel eye fatigue, and in severe cases, it will lead to vision loss and so on.
2. Electric heating lamps (incandescent lamps, halogen lamps). Ordinary incandescent lamps are actually a kind of eye protection lamp, because the alternating current first heats the filament, the filament heats up, and then emits light, because the filament has a heat capacity, so when the power supply changes, the filament is still hot, and the afterglow is much longer than that of fluorescent lamps, so that the change of light and shade will not be as intense as fluorescent lamps (fluorescent lamps).
3. High-frequency lamp. High frequency, is to change tens of thousands of times per second, because the human eye has no time to change, can not feel the change at all, so it can be said to be "unchanged", to achieve the eye protection of the purpose and some high-frequency lamp upgrades, taking into account the impact of light reflection on the human eye, some have increased the filter, which can effectively increase the light needed for sleepy rise and reduce the light that is not needed, but there is still no way to completely solve the problem of strobosis.
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In our family study, many people have a table lamp on the table. The type of desk lamp can have a great impact on the state and efficiency of our learning and work. So today, I will introduce to you a table lamp eye protection lamp.
What are the advantages of eye protection lights? Today I will answer them one by one.
1. What are the advantages of eye protection lamps?
1. From the point of view of light, the color is soft, will not sting the eyes, and the use of LED light source eye protection lamp can also effectively prevent the decline of strength; From the point of view of temperature, the LED eye protection lamp is illuminated for a long time, and the temperature will not be very high, which shows that the LED eye protection lamp has a good heat dissipation effect and high safety, and will not cause safety accidents.
2. Small size LED is basically a tiny chip encapsulated in epoxy resin, so it is small and light.
3. The power consumption of LED is quite low, generally speaking, the working voltage of LED is. The operating current is. This means: it consumes no more than electricity.
5. The eye protection lamp is the use of no flicker, no flicker, no eye fatigue pants, full metal texture, elegant, classic. It adopts high-brightness and low-light attenuation LED patch, low-voltage DC12V switching constant current drive, no flicker, no radiation. The unique polarizing film light guide technology can make the LED light output evenly and directionally, without glare and dazzling, and prevent myopia.
6.Rugged, LEDs are completely encapsulated in epoxy resin, which is stronger than light bulbs and fluorescent tubes. There are no loose parts in the lamp body, which makes the LED not easy to damage.
DC drive, ultra-low power consumption (single tube watt) electro-optical power conversion is close to 100%, and the same lighting effect is more than 80% energy-saving compared with traditional light sources.
Second, how to choose an eye protection lamp.
1. Watch the strobe.
A good eye protection lamp should have no stroboscopy, because learning under the light source of strobe for a long time will damage the optic nerve due to excessive fatigue of the retina, so it is the most ideal light source to say that the strobe of the lamp is zero. Of course, if the strobe increases to a certain level per second, it will not be visible to the naked eye, and the eyes will feel relatively comfortable.
2. Look at the brightness and design.
The brightness of a good eye protection lamp should be reasonable and not dazzling. It is best to choose a trichromatic lamp because its light is soft and neither white nor harsh. In addition, the overall design of the eye protection lamp is also very important, especially the lampshade, if the lampshade uses a professional optical design, it will minimize the contrast between the lighting area and the non-lighting area, so that your eyes feel very comfortable.
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With the increase in children's learning intensity, an eye protection lamp is very important to help relieve the fatigue of learning and protect eyesight. Next, PCHOUSE will talk to you about the characteristics of eye protection lights.
1. The light is continuous and uninterrupted, there is no change in brightness and darkness in a short time, and there is no flicker.
2. The color temperature is about 4000 4600K, the color temperature is moderate, the light is soft and a little yellow, which is more suitable for reading needs; The color temperature is around 4700 5500K, the color temperature is high, and the light is dazzling and white. The color temperature of sunlight at dusk is 2000k-3000k, and the color temperature is low and yellow; At noon, the color temperature of sunlight is close to 7000K, and the color temperature is too high, too bright and too dazzling.
3. It is scattered light, with a large illumination area and no strong contrast shadow.
4. Spectral continuity: mixed light composed of a variety of visible light in a certain proportion, non-monochromatic light.
5.Direct sunlight and natural light near windows are usually strong (illuminance values of several thousand to tens of thousands of lux), and it is not suitable for reading and writing for long periods of time in this light.
The above are the characteristics of eye protection lamps, and those who need them can consider purchasing. I hope you find the above helpful.
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What isEye protection lamp?Eye protection lamp is one of the most common household lamps in people's daily life and learning, auspicious defeat eye protection lamp is really called healthy, green, environmentally friendly, and can protect the eyes of the lamp. So how to choose an eye protection lamp?
Let's follow us to find out.
How to choose an eye protection lamp?
Ordinary consumers do not know so much about eye protection lamps, and they are often dazzled when purchasing, and sometimes they have to choose by **, style and color, which has a certain blindness. In fact, when buying an eye protection lamp, you only need to pay attention to the following points:
1. Look at the light: (1) The brightness is stable and there is no flicker; (2) Soft light and eye protection lamp; (3) The light is relatively uniform, and it is not a very small point light source; (4) Lamps and lanterns The lampshade design is reasonable, there is no glare (the bright spot that the eye can see), and some lampshades have built-in lattice-like reflectors, which effectively reduces the contrast between the lighting area and the non-lighting area.
2. Look at the certificate: the product certificate and safety certificate should be complete, and there should be the national dust pure safety compulsory certification mark CCC, which is often called the "3C" certification mark. These documents are actually the methods of the special agencies to check the consumer.
4. Easy to replace the lamp head: The lamp head must be replaceable, and it is best to use the commonly used standard interface (such as E27-thick spiral lamp head, E14-thin spiral lamp head), so that in case the lamp head is broken, it is easy to replace the lamp head.
The above is for you, what is an eye protection lamp? How to choose an eye protection lamp? All of it.
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