What is the damage of the blue light? How to install a screen protector perfectly without bubbles and alignment tool ? Warm Tips: Before the installation,please make sure the doors and windows are closed.Try to keep the invironment clean and avoid the occurrence of dust or lint. Take out the new screen protector, wipe it with a cleaning cloth, make sure there is no dust on the outside, then grab the top of the backboard and then tear off the screen protector. Put the upper part on the phone screen, first align the upper part of the screen protectoe with the upper part of phone screen, and compact it slightly.
Without getting into complicated physics, there is an inverse relationship between the wavelength of light rays and the amount of energy they contain. Light rays that have relatively long wavelengths contain less energy, and those with short wavelengths have more energy.
In daily artificial lighting, when the illumination is 100–300lx and the flash frequency is not less than 150HZ, the light is more suitable for the human eyes. When the illumination is too strong, and the flash frequency is insufficient, it is easy to cause eye fatigue, which may cause ametropia in the human eye. When watching the mobile phone for a long time, the glare that is constantly flashing on the screen will cause continuous stimulation to the eyes. When the eyes keep capturing these light and shadows, the eyes will feel tired and cause damage to the tear film on the surface of the eyeball, causing dry eyes and deepen the myopia. Read extra details at anti glare matte screen protector.
Anything above 380 nanometers is not visible to the human eye and cannot be seen. While invisible, these frequencies can still be useful. Some epoxies used in dental work use ultraviolet light to accelerate the chemical process of fixing teeth. Tanning beds use these frequencies to artificially increase tan color (though of course you wouldn’t want to be bathed in it for hours, or you could develop significant health problems).
You may be wondering why using a computer is so much harder on your eyes than reading printed materials like a book or magazine. The main reason is that when we stare at computer screens, we tend to blink less. In fact, while focusing on digital displays, a person’s blink rate can be reduced by a third to a half, which causes their eyes to dry out. Additionally, many of us are not viewing these screens from the optimal distance. In recent years, a popular solution to this problem has been blue light filters; namely, expensive computer glasses. However, these glasses, as well as other blue light filters, are no more effective at reducing the symptoms of eye strain than a neutral filter. Instead of spending money on something that may not help, try these simple and effective tips first.
The eye is not very good at blocking blue light. Anterior structures of the adult human eye (the cornea and lens) are very effective at blocking UV rays from reaching the light-sensitive retina at the back of the eyeball. In fact, less than one percent of UV radiation from the sun reaches the retina, even if you aren’t wearing sunglasses. (Keep in mind, though, that sunglasses that block 100 percent of UV are essential to protect these and other parts of the eye from damage that could lead to cataracts, snow blindness, a pinguecula and/or pterygium, and even cancer.) On the other hand, virtually all visible blue light passes through the cornea and lens and reaches the retina. Find more details at www.perfectsight.co.
