Jay Holben During one of my recent lectures, there was a great deal of confusion about how to adjust light intensity and when does light quality and/or color change when altering the intensity.

Eating in the dark isn’t as helpful for flavor enhancement as some may have thought, a new study claims. Researchers at the Netherlands-based Maastricht University looked into how lighting impacts ...

The light intensity curves for LEDs, regardless of whether they are collimated with a lens or reflectors, follow a bell shaped curve (often referred to as a “Lambertian“ curve). The 50% intensity ...

An LED and a semiconductor laser (or laser LED) work in essentially the same way, that is, light is emitted as electrons and holes combine, with emission wavelength dependent upon the materials used.

Walk into a room bathed in cozy, inviting light and you’ll feel instantly at ease. Walk into the same room buzzing with harsh fluorescents, and your teeth may start to grind. In 2014, a Journal of ...

If energy efficiency, lighting quality and utility expense reduction are your business objectives, you might be considering a lighting retrofit. As a founding member of a tech company focused on ...

Last week, NASA released a report whose tone was misleadingly gleeful. Called "NOAA/NASA Satellite Sees Holiday Lights Brighten Cities," it began, “Even from space, holidays shine bright.” The ...

Richard Metcalfe receives funding from The Diabetes Research and Wellness Foundation. Most people probably don’t think of everyday activities – such as hanging out the washing or putting away the ...

The 3-pound LED lamp can separate from its base and fall onto people below, posing a definite impact hazard. GE Lighting is recalling about 35,000 high intensity discharge (HID) LED lamps as there ...