Brief Introduction of LED
LED, as a new and green product, which is the future trend, in twenty-first century it will enter to LED as the representative of the new lighting source era.
LED Light Source Characteristics
The new green light: application of LED cold light, glare, no radiation, utility does not produce harmful substances. The LED low working voltage, DC drive, ultra low power, electric power conversion in 100%, in the same lighting effect than the traditional energy-saving light source above 80%.LED environmental protection benefit are better, no ultraviolet and infrared spectrum, and recyclable waste, no pollution, no mercury element, safe touch, typical of green lighting source. LED as long life solid cold light source, epoxy resin package, shock resistance, light body and no loosening of the components, there is no filament light burning, heat deposition, optical and other shortcomings, service life of up to 60000 -10 million hours, is a traditional light source service life by more than 10 times.the led tube lamp stable performance, can be -30 ? -- 50 ? environment work. LED light source can be varied by red, green, and blue three primary colors principle, under the control of a computer using three color has 256 levels of gray and arbitrary mixing, can produce 256 x 256 x 256 (16777216) colors, forming different color combinations.LED combination of light be the most changeful, can realize the rich and colorful dynamic effect and a variety of image. High-tech and traditional light emitting effect compared to the LED light source is low, smile of electronic products, the successful integration of the computer technology, network communication technology, image processing technology, embedded control technology. The traditional LED lamp used in the chip size is 0.25mm × 0.25mm, and lighting with LEDDE size is 1.0mm × 1.0mm above. The LED bare chip forming the working table structure, inverted Pyramid structure and the flip chip design can improve the luminous efficiency, thus making more light. The LED package design innovations including high conductivity metal block base, flip chip design and bare disc casting type lead frame, by using these methods to design efficient.
 Light Emitting Diodes
LED or light emitting diodes, is a kind of instrument which can be converted into electric energy visible light solid-state semiconductor device, main characteristic is green, energy saving. China energy saving lamp occupy 70% global share, but semiconductor lighting accounted for only 1% of the market, so only energy-saving led tube bulbs a will have a huge space for development. Predict to 2010 our country LED sales output value will exceed 150000000000 RMB, this data is two times that of 2008, and in the 30% annual rate of growth. The next 15 years, China's LED industry market and Chinese export market is expected to achieve 5 trillion RMB.
This article come from:http://www.chinahotelsupply.com.cn/index.php/introduction-of-light-emitting-diodes.htm
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