Photo by picjumbo.com on Pexels.com My wife and I have just moved into our new-old home. We have spent almost a year restoring and reinvigorating a mid-century ranch that will deliver a more carefr…| Lighting by Jeffrey
In my last blog post, I explained the recent recommendation by the CIE (International Commission on Illumination) to move away from CRI and replace it with Rf, CIE General Color Fidelity Index. Almost immediately, I was asked why. It’s a good question. On the surface, they appear to be very similar. This last point is […]| Lighting by Jeffrey
Photo by Alexander Grey on Pexels.com You may have heard that the CIE (International Commission on Illumination) has finally agreed with numerous illumination and color of light experts to abandon …| Lighting by Jeffrey
A friend of mine is doing a substantial amount of research of interurban transportation of the early 1900s. To aid in his efforts, he has acquired many years of the trade publication, Electric Rail…| Lighting by Jeffrey
Photo by Annisa Nuriddar on Pexels.com My last blog was on ultraviolet light, now one on infrared. Do we detect an “unseen” pattern here? Here’s an interesting twist that few people saw coming. The…| Lighting by Jeffrey
