Tempered glass screen protector repair guides: Like ultraviolet radiation, visible blue light — the portion of the visible light spectrum with the shortest wavelengths and highest energy — has both benefits and dangers. Here are important things you should know about blue light: Blue light is everywhere. Sunlight is the main source of blue light, and being outdoors during daylight is where most of us get most of our exposure to it. But there are also many man-made, indoor sources of blue light, including fluorescent and LED lighting and flat-screen televisions. Most notably, the display screens of computers, electronic notebooks, smartphones and other digital devices emit significant amounts of blue light.
Applying Screen protectors properly without annoying bubbles or dusts for phones and tablets can be the most frustrating job. In this article you’ll get some useful tips on how to put on a screen protector directly to avoid any bubbles or trapped dirts. This methoud apply to different mertials’ screen protecotr for phone and tablets like tempered glass, plastic, PET film, liquid film, etc. After aligning the upper part, slowly adjust the position of the whole screen protector appropriately to ensure the position is correct, and then place the lower half on the screen. Explore more info on how to put on screen protector.
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.
Artificial blue light, the kind associated with LED and screen-based OLED illumination, operates on a different level of the spectrum, in the 380–500 nanometer range. The 415–455 nanometer range is the most harmful — what’s called high-energy visible light, or HEV — and it’s where digital blue light from laptops, tablets and mobile phones operate. Sunglasses are designed to block light in this range — as are welding helmets! But the tech industry has been slow to adjust. “Apple for sure doesn’t build to that standard,” Bill pointed out.
Visible light is much more complex than you might think. Stepping outdoors into sunlight; flipping on a wall switch indoors; turning on your computer, phone or other digital device — all of these things result in your eyes being exposed to a variety of visible (and sometimes invisible) light rays that can have a range of effects. Find additional details on Perfectsight iphone screen protectors.