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Substrate-Patterning Techniques for Nitride Growth

Enhanced control over substrate patterning leads to improvements in material quality and light extraction in nitride materials and LEDs. Although gallium nitride(GaN)and its alloys are widely used in ...

Gertrude Rothschild, Dies at 83

Gertrude Neumark Rothschild,whose research helped improve light-emitting and laser diodes now used in many cellphones,flat-screen televisions and Blu-ray disc players,and who waged a successful ...

The Egle Table Lamp From Artemide

Enlarge This Image The new Egle table lamp can multitask:the diffuser rotates 300 degrees,and the stem rotates vertically and horizontally.The base,which is slightly concave,doubles as a reflector and ...

Implementation of Nine Standards of China LED Lighting Industry ...

Nine Chinese official-led industrial standards were approved by Chinese Ministry of Industry and Information Technology and were fully implemented on January 1st, 2010. The standards include: Semiconductor ...

How to Design LED Streetlamp Driver Circuits

In many consumer applications for lighting the cost of existing technology'namely incandescent light bulbs or fluorescent tubes'is so low that LED lighting's many advantages simply cannot make up for the ...