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SSL Annex announces interlaboratory comparison for goniophotometer measurements of LED luminaires

Intended as a technical study and proficiency test for laboratories, the 2017 Interlaboratory Comparison will document the equivalence of different types of goniophotometers and variations in laboratory procedures and capabilities. The original version of this article...

DOE documents OLED photometric performance in Caliper report

OLED panels produce soft diffuse light with essentially a Lambertian distribution that is inherently pleasing, but efficacy remains a challenge and elevated ambient temperature can drastically reduce lifetime. The original version of this article can be found...

DOE issues research on LED downlights and on OLED lighting

OLED lighting still holds potential, according to a US Department of Energy report on available products and promised improvements, while a Snapshot Caliper report on LED downlights reports lower levels of performance improvement relative to other SSL luminaire types....

Risk group determination characterizes photobiological safety in LED lighting (MAGAZINE)

Expanding on a prior series of articles focused on the photobiological safety of LED-based lighting, Leslie Lyons further details risk group classifications and methodologies that come into play with extended sources such as LED arrays. The original version of this...