Will choosing a projector affect my vision? Is the radiation high?
For children or children, frequent computer and mobile phone play can easily lead to vision loss, and cartoons and games are very attractive to children. They often suffer from vision problems due to watching TV and playing games. Parents are noisy, especially at this time when school has not yet started. What should we do? According to statistics, there are currently more than 100 million myopia among primary and secondary school students in the country. Because of this, today’s parents attach great importance to their children’s vision problems. Children's vision problems deserve attention
Generally speaking, the main reason why electronic devices harm the eyes is because the light source of the LCD screen shines directly into our eyes, which is what we call direct light source. Staring for long periods of time can cause eye fatigue and even myopia. Moreover, the LCD screen displays by flashing, but the flashing frequency is very fast, and the human eye cannot recognize it and mistakenly think that the screen is stationary. It is as if there is a camera flashing at your eyes dozens of times per minute or more. You can imagine the fatigue of your eyes after staring at the screen for a long time.
On the other hand, electronic products all use LED backlights, which contain harmful high-energy blue light. When the human eye is exposed to high-energy blue light for a long time, it is easily absorbed by the retinal pigment epithelial cells in the human eye and triggers free radicals. Free radicals can cause epithelial cell apoptosis and fail to support the normal work of photoreceptor cells. In particular, the structural development of children's eyeballs is not fully mature and is extremely vulnerable to damage. They should try to avoid watching electronic screens for long periods of time to avoid damage from blue light and polarized light. To protect eyesight, projectors have become a better choice
From the perspective of imaging principles, projectors can be said to be a display device that is relatively eye-friendly. Here is some popular science for you. The imaging principle of the projector is that the optical machine projects the image onto the wall or curtain, and then diffusely reflects it to the human eye. Compared with the direct light from the backlight of the LCD screen, although the brightness of the diffusely reflected light is attenuated, it is less irritating to the human eye. Therefore, visual fatigue during long-term use will be alleviated.
So does it mean that looking at a projector is not harmful to the eyes? In fact, no, both projectors and LCD TVs emit blue light. On the projector, although diffuse reflection weakens the blue light, it still exists. Therefore, if you do not pay attention to correct eye hygiene, there is still a risk of visual fatigue leading to vision loss. It's just that compared to LCD TVs, this stimulation will be weaker.
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Relevant experimental data shows that projectors can indeed relieve eye fatigue to a certain extent, so as long as we open them all the time When using your eyes, you need to relax your eye muscles in a timely manner. Whether it is a projector or an LCD TV, long-term viewing will lead to visual fatigue. Therefore, we need to focus on avoiding the occurrence of visual fatigue, rather than watching. Don't watch TV shows. Compared with LCD TVs, projectors are indeed more friendly to people's eyes, but it cannot be said that projectors can protect eyes. Equipped with these functions, it is more suitable for children to watch
1. It is compact and can be placed wherever you want
Generally speaking, for young home users, oversized LCD TVs are often Not conducive to installation. And it is not conducive to handling during transportation. Some residential elevators cannot even accommodate large-size LCD TVs. Compared with these projectors, they are smaller and have an audio-visual experience that is not inferior to LCD TVs, so we say that projectors have advantages over LCD TVs in some aspects.
In addition, when installing and using previous projections, it was necessary to lay out audio cables, video cables, etc. in advance, and finally connect the content source and speakers before they can be used. The process is not only cumbersome, but it is best to do it before decoration. Do it well, otherwise the exposed lines will affect the aesthetics of the interior. Today's projectors not only come with rich content sources, but also have built-in internationally renowned sound systems, allowing users to buy them and use them without having to consider other factors. Such a simple and easy-to-use product will naturally attract more users to buy it. For children, wherever the projector is placed, it is a place for entertainment.
2. Equipped with rich UI designs for children
Many projectors are currently equipped with very intelligent systems, and the built-in film and television resources are also very rich.
Even some systems integrate more than two content sources, and there are basically dedicated animation sections and children's sections, so children have a very rich choice. Different permissions are given to different family members through voice recognition. Parents can directly enter or exit the encrypted children's desktop through voice. Children cannot exit the children's desktop through this function. Parents do not have to worry about their children being exposed to harmful information when they are not around. This time, finally You can safely hand over the remote control to your child.