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light-emitting diode |
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light-emitting diodeElectronic component that converts electrical energy into light or infrared radiation in the range of 550 nm (green light) to 1,300 nm (infrared). They are used for displaying symbols in electronic instruments and devices. An LED is a diode made of semiconductor material, such as gallium arsenide phosphide, that glows when electricity is passed through it. The first digital watches and calculators had LED displays, but many later models use liquid-crystal displays. In 1993 chemists at the University of Cambridge, England, developed LEDs from the polymer poly(p-phenylenevinyl) (PPV) that emit as much light as conventional LEDs and in a variety of colours. A new generation of LEDs that can produce light in the mid-infrared range (300–1,000 nm) safely and cheaply were developed by British researchers in 1995, using thin alternating layers of indium arsenide and indium arsenide antimonide. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The EZ-Color family of HB LED controllers combines with PSoC Express, the industry's first visual embedded design tool to deliver a complete design solution for growing applications such as architectural lighting, general signage, entertainment lighting and more. This decline will not affect all HB LED market segments equally. It is the longest-running and the largest conference in the HB LED industry, and the premier annual forum for presenting current commercial developments in high-brightness LED applications and providing unparalleled networking opportunities for component and equipment suppliers, manufacturers, and end-users of HB LED devices. |
HB LED |
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