We know that the body of primary and secondary school students is still in the development stage, the elasticity of the eye development space is relatively large, and the vision is in an undefined development period, which is greatly affected by external forces.
And now the TV, computer and mobile phone these products generally use LED backlight, we browse the screen content, the backlight is directly into the human eye, which leads to the screen for a longer time, the greater the stimulation of the eyes, over time, the eyes are vulnerable to damage.
Then there is the fact that when we focus on using the eyes, the number of blinks will be reduced to half or one-third of the original, such as watching TV and playing mobile phones for a long time, the eyes feel dry, and the vision becomes blurred, which has a lot to do with the reduction of the number of long-term blinks.
Therefore, it is necessary to choose a more eye-protective projector to take online lessons, as for the reason, it is nothing more than that the current projector is more seen by the human eye through diffuse reflection, and the light is not directly into the human eye, but is projected onto the curtain or wall before it is seen. The whole process is similar to reading a book in natural light, the light that enters the human eye is the reflected sunlight rather than the light that looks directly at the sun, so compared to the TV, computer, and mobile phone, the projector is more eye-catching.
In addition, the picture projected by the projector is larger than that of ordinary TELEVISION, computer, and mobile phone, which can maintain a long viewing distance and achieve healthy eyes.
Different from the current projection products, Lingying's upcoming E01 is equipped with a special learning mode while maintaining eye protection, and after entering this mode, children can learn on it. Built-in learning software, the child's learning curriculum according to the grade classification, and then in the form of animation display, the course content with reference to primary, junior high, high school textbooks, synchronized with the teaching materials, the latest test points and important knowledge points as the core of the explanation, convenient for children to consolidate learning.
After exiting the mode, parents can project games normally, use both machines, learn and entertain, which is a good thing for children and parents.
Use a home projector to learn, the large screen experience is better, relatively more eye-protecting, but the premise must be to cultivate healthy eye habits, otherwise what products to use, the harm to the eyes is not small.
Finally knock on the key points: we should pay attention to when purchasing, although the projector blue light harm is small, but still to be vigilant about the brightness effect, too dark too bright products are also not good for vision, online lessons are recommended to choose the flow brightness of about 1000ANSI, the resolution as far as possible 1080p, high color reproduction of the machine, suitable for the real environment is the best choice. Remember to eliminate vanity brightness, low resolution of the cottage projector.