This is a common misconception, that blue light is always artificial and always bad. Blue light, and shades of blue have extremely high amounts of energy and have been shown to not only affect your sleep but to have long term health affects. Now, for the purposes of this article, it’s important to understand that your eye is only sensitive to the visible light portions of the spectrums, colors such as blue, green, yellow, orange and red. The wavelengths are divided into colors and grouped into categories called: So, shorter wavelengths have higher energy, and longer wavelengths have lower energy.
These lengths have an inverse relationship to the energy they produce. Let’s just take a second and talk about what Blue Light is, because not that many people actually understand it.Īll light is made up of electromagnetic particles that travel in waves of different lengths. What is Blue Light and Why Should I Care? Credit: Now let’s break this down, talk about which devices actually emit blue light, and how you can protect yourself from it. Many e-readers that have tablet-like functionality, such as the Amazon Fire tablets emit blue light at all times. However, newer versions of these devices use better filtering for the blue light. So in this article, we’re going to talk about what “blue light is” why you should care, and whether e-readers like the Kindle, Kobo, Nook, and other emit Blue Light.įirst, let’s just answer the briefest version of the question, and then we’ll get a bit more in-depth.ĭo e-readers like the Kindle emit blue light? Yes, most e-readers, even the ones that use e-ink displays like the Amazon Kindle paperwhite do use blue-light spectrums for the backlighting. I was asked this question the other day and didn’t quite know the answer.
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