From foundation fading to uneven texture, discover how blue light skin effects may influence makeup longevity and which ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...

With the overwhelming prevalence of screens, blue light is everywhere, all the time. Unfortunately, that's not a good thing, ...