What is Blu ray? What is the principle of the anti blue protective film?
Anti blue cell phone film is a vision protection film developed for blue light radiation. Blue light cell phone uses blue ray blocking technology to absorb and transform blue light, so that the blue light can be effectively blocked, and the purpose of protecting eyesight can be achieved.
This will bring harm to people's eyes and hands, will stimulate brown pigment, so that the skin produces macular, freckles, will increase the degree of myopia of the eye, resulting in visual fatigue, but also detrimental to normal sleep. Mainly in mobile phones, tablet PCs, computer monitors, fluorescent lamps, digital products, LCD, LED and other light.
Blue light is light with a wavelength of 400~500 nanometers. Blue light is a visible light, blue light wave, short, high energy, can penetrate the crystal directly to the fundus retina. In the smartphone era, people spend more time staring at the phone screen, but the phone screen, LED, and computer screen light produce a lot of blue light,
