Craig DiLouie

Excessive heat generation is one of the main reasons why light-emitting diodes fail. With the Oslon Square, Osram Opto Semiconductors has produced an LED that withstands high ambient temperatures. To ensure that the color point of each LED in a luminaire remains uniform even at higher temperatures, they are measured and binned at 85°C. This [...]

Spanish light artist Roseline de Thélin creates visually stunning holographic light sculptures and installations. Her projects focus on holographic ethereal beings she calls “Homos Luminosos” (luminous beings) as well as organic forms, all using points of light distributed along optical fibers. She uses the relationship between light and dark to create three-dimensional images that are [...]

In April, ELECTRICAL CONTRACTOR published an article I wrote about OLED general lighting. The technology is extraordinary and offers good energy savings potential and unique user experiences, but its development is about seven years behind LED, and significant advances must occur before broader adoption is possible. Read it here.

The National Electrical Manufacturers Association (NEMA) published ANSI C136.12-2014 American National Standard for Roadway and Area Lighting Equipment— Mercury Lamps—Guide for Selection. This standard covers the selection of mercury vapor lamps recommended for use in roadway and area lighting equipment. ANSI C136.12-2014 may be purchased in electronic or hardcopy format for $37 on the NEMA [...]

The California Lighting Technology Center has published a guide to lighting retrofits for California schools, available free here. Developed in partnership with utilities and lighting industry leaders, it covers proven lighting and daylighting strategies that consistently provide excellent long-term energy savings and lighting quality improvements on K–12 and community college campuses. The interactive electronic document [...]

Global Lighting Technologies (GLT) has announced availability of non-linear, edge-lit light guides can be integrated into a variety of products, from overhead lighting and wall sconces to automotive interior/exterior lighting such as dome lights, passenger compartment lighting and daytime running lights, as well as white goods and consumer electronics devices. The curvature of the light [...]

The U.S. Department of Energy’s CALiPER program has released a special report on LED lamps available through the retail marketplace and targeted toward general consumers. The report follows similar reports published in 2011 and 2012. LED replacement lamps are available through many retail outlets, and CALiPER testing offers insights on performance trends from year to [...]

Stan Walerczyk’s new book, LIGHTING & CONTROLS: TRANSITIONING TO THE FUTURE, published by The Fairmont Press, provides a practical guide to recent developments in lighting technology and describes approaches for maintaining and updating existing lighting systems. Click here to learn more.

In his article in the February edition of LD+A, Steve Landau of LED module manufacturer Xicato advises designers to ask luminaire manufacturers 10 questions before specifying LEDs for their projects. Click here to read it.