Children at this stage of primary and secondary school students, their vision is still in the stage of development, and they are susceptible to external factors. Therefore, children of this age should pay special attention to the protection of vision, pay attention to healthy eye habits and ensure adequate rest, and reasonably control the time of using electronic products.
So back to the question itself, for 11-14 year olds, is learning with a projector helpful in protecting vision? The answer is yes. As for the reason, where does it start? Read on to find out.
Now there are many learning tools, you can learn with mobile phones, you can also use computers to learn, you can also use TV to learn, but these products for primary and secondary school students' vision protection is relatively weak, if you want to arrange a sequence, the projector > TV> computer > mobile phone.
Because the projector adopts the principle of diffuse reflection, that is, the light is directly shot through the lens to the screen for imaging, and then reflected by the curtain into the human eye, so that the light after secondary transmission is relatively soft. Since light does not shine directly into the human eye, it is more conducive to protecting the child's eyes.
Compared with TVs, computers, mobile phones, the screen projected by the projector is larger, and the user can maintain a long viewing distance, at the same time, the blue light hazard of the projector is also significantly weaker than that of the TV and mobile phone, which also has a certain protective effect on vision.
But in fact, in the end, scientific eye habits are the best way to protect vision, look at the screen time for a long time, may wish to move outdoors, or exercise, or look at the flowers and plants are good adjustment.
Finally, the key point is that everyone should pay attention to when purchasing. Although the projector blue light harm is small, but still to be vigilant about the impact of brightness, too dark too bright products are also not good for vision, learning then it is recommended to choose stream brightness of about 1000ANSI, resolution as far as possible 1080p or more, color selection high degree of reduction of the machine, fit the real environment is the best choice. Remember to put an end to the use of lower and lower brightness, low resolution cottage projectors.