Have you ever heard of the Kruithof Curve? Back in the early 1940's when fluorescent sources were beginning to affect the way we thought about light and color rendering, a scientist that worked for Philips named Arie Andries Kruithof performed some informal tests on how the human eye relates the amount of light in a [...]
Read More CCT, color temperature, CRI, illuminance, kelvin, Kruithof Curve, purkinje effect, scotopic visionDo you know the difference between "luminance" and "Illuminance?" When talking with students, or people who just love light but don't know much about it, there are a few terms that are used sometimes incorrectly – "That table has a high illuminance value," or "you can measure the luminance coming from that light source." Not [...]
Read More illuminance, incident light, Lighting 101, luminance