How to choose a cell phone screen protector?

Posted by Marian Vasilescu on April 4, 2020 in Technology

The Importantce of Blue Light Filter Glasses 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.

On the other end of the visible light spectrum, blue light rays with the shortest wavelengths (and highest energy) are sometimes called blue-violet or violet light. This is why the invisible electromagnetic rays just beyond the visible light spectrum are called ultraviolet (UV) radiation.

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. Explore a few more details on anti glare screen protector.

Your glasses and contacts: Talk with your optometrist about purchasing eyeglasses or contact lenses with HEV filters already built in. It’s a good idea if you plan to use your devices all day, without many breaks. You can also wear special computer glasses. TrueDark is an eyewear company that sells blue-light blocker glasses that look just like regular glasses. The company just announced two clear-lens blue-light filter glasses that block around 40% of high energy visible light. TrueDark also produces special night-time glasses that filter out all high energy visible light that you can wear over your glasses to block out 100% of blue light caused by LED lights, devices, and streetlights an hour before bedtime for optimum sleep.

Avoid dry eyes. As stated above, the primary reason staring at a computer screen is so harmful to your eyes is that you tend to blink less. To combat dry eyes, keep artificial tears nearby and use them when necessary. Other factors that can cause dryness include humidity-controlled offices that pull moisture out of the air and, during the winter, heaters. A desktop humidifier can help introduce moisture into your environment and give your eyes some relief.

Because short-wavelength, high energy blue light scatters more easily than other visible light, it is not as easily focused. When you’re looking at computer screens and other digital devices that emit significant amounts of blue light, this unfocused visual “noise” reduces contrast and can contribute to digital eye strain. Research has shown that lenses that block blue light with wavelengths less than 450 nm (blue-violet light) increase contrast significantly. Therefore, computer glasses with yellow-tinted lenses may increase comfort when you’re viewing digital devices for extended periods of time. The lens in the adult human eye blocks nearly 100 percent of the sun’s UV rays. As part of the normal aging process, the eye’s natural lens eventually blocks some short-wavelength blue light as well — the type of blue light most likely to cause damage to the retina and lead to macular degeneration and vision loss. Explore a few more info on this website.