The recent recurrence of the epidemic has forced the pace of development in some cities to press the pause button, and many schools still carry out online classes of "suspension of classes and non-stop learning" so that students can continue to learn during the epidemic. Focusing on small screens for a long time is bound to affect children's vision problems, so more and more parents choose projector large screens. With the two huge selling points of "large size + eye protection", projector products have become a new choice for the consumption upgrade of cloud office, online learning and home entertainment.
Why are projectors the first choice?
In fact, since the normalization of the online classroom last year, how to choose the display device of "eye protection and health" has once become the focus of the industry. In that year, the National Health Commission also issued the "Guidelines for the Prevention of Myopia in Children and Adolescents During the Epidemic Period", which pointed out that large-screen electronic products should be selected as much as possible.
At the same time, in response to the problem of how to choose electronic products to better protect children's vision, Wei Wenbin, vice president of Beijing Tongren Hospital and director of ophthalmology, said that the choice of video tools should adhere to the principle of "rather big than small", and the selection order is projection, TV, computer, tablet computer, and mobile phone.
Sonok told the projection era that because the projector uses the principle of diffuse reflection imaging, the non-direct light source can make the viewing picture softer, and it is not easy to fatigue for a long time. Under the boom of healthy eye care, consumers' demand for eye protection for display products has further improved, and projectors have naturally gained favor.
According to Lotu data, in the first half of the epidemic, projector sales and sales of projectors (including laser TVs) increased by 106.9% and 61.5% respectively. In the second half of the year, Sonoke successfully seized the strategic opportunity of "cloud office and cloud learning demand upgrade" under the epidemic situation, launched a popular laser projector product, and stuck the C position of market consumption upgrade. According to Aowei data, Sonok achieved the top 2 brands in China's laser projection market sales.
Protects vision away from blue light! The preferred projector for online lessons
Projectors have become the preferred display device for parents to take online lessons for their children, why can the large screen of online lesson projection become a trend? Sonnock said that in simple terms: eye protection!
Here's a quick overview of the two most important dimensions that affect vision health: blue light wavelength and flicker frequency. In daily life, as large as the sun and lights, as small as mobile phones, computers, tablets, televisions, etc., there are blue lights, but blue light is not all harmful blue light. For example, long-wave blue light with wavelengths between 460-500 nanometers has the effect of adjusting the biological rhythm and is beneficial to the human body. The short-wave blue light with a wavelength between 400 nm and 460 nm with a relatively high energy can penetrate the lens directly to the retina, causing the atrophy or even death of retinal pigment epithelial cells, which will lead to a decrease in vision and irreversible damage.
The diffuse reflection imaging principle of the projector fundamentally reduces the eye damage caused by direct light and flicker, so the blue light hazard is significantly weaker than other display devices.
For how to choose the projector used in online courses, the author reminds you not to buy low-end, cheap, cottage projectors on e-commerce, and should consider comprehensively from many aspects such as enterprise strength, brand influence, user evaluation, after-sales service, etc., such as Sonok, Epson and other brands are trustworthy, especially Sonok P1T.
Sonok P1T mainly portable + touch + smart, it uses 0.3-inch DMD chip, physical resolution of 1280×720, compatible with 1080P Full HD, built-in 7200mAh large-capacity battery, built-in Android 8.1 operating system, comes with Bluetooth 4.0, also supports wireless screen and vertical trapezoidal automatic correction, in addition to the children's mode, you can control the child's viewing content.
Postscript: Nowadays, in addition to paying attention to children's learning, how to protect vision must become the most concerned issue for everyone. It is recommended here that 1 avoid using the projector in a totally dark environment; 2 increase outdoor exercise and strengthen physical exercise; 3 maintain a good reading and writing sitting posture; 4 continuous time is not more than 20 minutes, and every 20 minutes to look at the distance for at least 20 seconds. 5 Choose a regular projector brand to ensure the clarity of the picture.