2009-03-23

Unencapsulated light-extraction efficiency of 73% reached by development of Philips

An estimated unencapsulated light-extraction efficiency of 73% has been reached by a photonic-crystal structured blue-emitting LED created by researchers of Philips Lumileds (San Jose, CA) and Philips Research(Eindhoven, The Netherlands).
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Signify, the world leader in lighting, launches Puzzle – the first luminaire of its kind to combine striking, continuous light with office compliance, task-ready performance and a breakthrough in sustainable design using 75% recycled PET... READ MORE

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