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 US Department of Energy (DOE) has released another Caliper report, this time focused on OLED luminaires available on the commercial market. The study documents photometric performance, product design considerations, and lifetime reliability through accelerated testing. The four solid-state lighting (SSL) products tested revealed pleasing optical performance, but energy efficiency, lifetime, reliability and cost remain issues.