I found this nicely composed chart for the visible spectrum, with an emphasis on the varying effects of blue light. I can’t find the original source but within the image it is credited to “High Performance Optics”. Continue reading visible spectrum image
Check out this amazing article exploring the current state of knowledge on the science of circadian lighting: “The Age of Enlightenment: The Promise of Circadian Lighting“, by Lynne Peeples on the website Undark.org. Really…this is one of the best examples … Continue reading age of enlightenment: the promise of circadian lighting
As a lighting nerd for close to 20 years, I’m personally disgusted at the lighting industry’s numerous dubious claims for the health benefits of blue light. I’m equally disgusted at the sensationalist claims about blue light’s possible negative health effects … Continue reading blue light decreases suicides on train platforms
According to Lux Magazine: Neuroscientist professor Russell Foster…led the team at Oxford University which discovered the eye’s third photosensitive cells, creating a whole new paradigm in interior lighting. Previously unknown to science, the cells hold the key to our understanding … Continue reading russell foster
For us lighting nerds, a terrific webinar hosted by the US DOE discussing the state of the actual scientific research on street lighting and sky-glow sources, versus the extreme scare-mongering of recent “scientific” publications: Bruce Kinzey of Pacific Northwest National Laboratory … Continue reading US DOE street lighting “get the facts” webinar
The US DOE just issued a fact-sheet addressing the blue-light output of LEDs. It is a very good read for anyone concerned about this topic. The following two images are the crux of the document. The first chart shows the … Continue reading no, LEDs do not produce more blue light, so get over it
