Mr. Qin: I majored in mechanical design engineering, which is related to the business [audiovisual] I am currently involved in. I like to delve into the product structure and production process. Now our projection technology has been developed and updated very quickly. More importantly, its visual application is always based on reflected light rather than direct light.
Today, many people, especially children and students, suffer from myopia and amblyopia because they always look directly at the TV and LED/LCD. In fact, they stare at the lamp panel, which weakens the optic nerve and causes eye problems. Projection screens using reflected light projection techniques and based primarily on diffuse reflection imaging principles do not harm the eye.
In schools, electronic teaching platforms (video-based teaching) have been widely promoted, which solves the problem of teachers passively inhaling chalk dust. However, most of the screens used are not resistant to ambient light, and there is a problem that the display is unclear. Their resolution and contrast are very low, so students sitting in the back seat in class can't see the screen.
The Chinese government has promulgated a policy to prevent myopia. As an enterprise dedicated to the audio-visual business, we should focus on public eyesight protection by developing low-gain (<1.0) audiovisual front projection technology.