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Market programs and regulations hold back HCL in the US (MAGAZINE)

Stan Walerczyk, principal of Lighting Wizards, describes the challenges of implementing human-centric lighting in the US but also sees opportunity to positively impact our wellbeing. The original version of this article can be found...

CIE should endorse TM-30-15 color rendition metrics post haste

The Illuminating Engineering Society (IES) has published a Technical Memorandum (TM-30-15) defining a new pair of metrics intended to characterize the color rendition of light sources. The original version of this article can be found...

Good intentions yield LED standard for flicker, but questions remain (MAGAZINE)

The Institute of Electrical and Electronic Engineers (IEEE) has published a new LED standard that addresses flicker in solid-state ighting – defining safe levels of flicker by percentage relative to the operating frequency of a light source powered by the AC...

Engineered nanoparticles enable higher packaged LED efficiency and improved color conversion

Ying Li, Bharath Natarajan, Glenn Horner, Linda Schadler, and Robert Karlicek describe a new nano-zirconia-based LED encapsulation material that promises improved packaged LED efficiency and potentially integrated color conversion. The original version of this article...

Illuminating Engineering Society updates LED testing standards (MAGAZINE)

Jianzhong Jiao explains the expanded scope of the new LM-80 LED standard with coverage of color along with white LEDs and test methods defined specifically for DC high-voltage, AC, and other variants of the simple discrete LED. The original version of this article can...

SIL keynotes chart course of LED technology and supply, explore expanding applications (MAGAZINE)

Maury Wright reports on four equally compelling keynote presentations that illuminate the breadth of the Strategies in Light conference, foreshadowing the various directions that SSL industry developments will take. The original version of this article can be found...