30 May '11, 9pm

LED NEWS: Solid-State Lighting: R&D Challenges: Like any new technology, solid-state lighting must demonstrate a...

Light-emitting diodes (LEDs) —semi-conducting devices that produce light when an electrical current flows through them—are based on inorganic (non-carbon-based) materials. Optimizing efficiency in LED lighting will hinge on ongoing improvements to materials and light extraction techniques. Researchers also are pursuing enhanced reliability in LED lighting, encompassing not only the LED itself but the luminaire and electronic components as well. Other research challenges include improving power supply and driver performance, and enhancing color quality and consistency. Organic light-emitting diodes (OLEDs) are based on organic (carbon-based) materials. Unlike LEDs, which are small point sources, OLEDs are made in sheets that provide a diffuse-area light source. While developing rapidly, OLED technology is less mature than LED technology and still some years away from becomi...

Full article: https://www1.eere.energy.gov/buildings/ssl/sslbasics_rand...

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NEXT GEN LIGHTING AN INVESTMENT, NOT A CONSUMAB...

green-energy-news.com 23 May '11, 2pm

Commenting on a planned trip to the lighting show and returning LED technology to reality, Jed Dorsheimer of investment ba...