Down Brand | Liaoning downlights | Sidon lighting

Huizhou City Industrial Development Co., Sidon (www.cdn.cc) is located in Huizhou City of Guangdong Huizhou Dongjiang Industrial Zone peaceful outlet Road A17, Contact: Mr. Chen Sidon Huizhou City Industrial Development Co., Ltd. introduced the LED infrared light-emitting diodes infrared light-emitting diode, also known as infrared emitting diodes, it is possible to directly convert electrical energy into infrared light (invisible light), and can radiate out of the light emitting device, and mainly used in light-controlled remote control transmitter circuit. Infrared light-emitting diode structure, principles and common light-emitting diodes are similar, but different semiconductor materials used. Typically use gallium arsenide infrared emitting diode (GaAs), gallium aluminum arsenic (GaAlAs) and other materials downlight brand, all-transparent or light blue, black resin package. Commonly used infrared light-emitting diodes have SIR series, SIM series, PLT series, GL series, HIR series and HG series. Huizhou City Industrial Development Co., Sidon describes the development of the first application of LED type semiconductor PN junction light-emitting principle LED light source made came in the early 1960s. At that time the materials used are GaAsP, fat red (λp = 650nm), the drive current of 20 mA, the luminous flux is only a few lumens per thousand, corresponding luminous efficiency of about 0.1 lumens / watt. Wholesale downlights mid-1970s, the introduction of elements of In and N downlights, LED produces green (λp = 555nm) downlights production, yellow (λp = 590nm) and orange (λp = 610nm), luminous efficiency is also increased to 1 lumen / watt. By the early 1980s, there has been GaAlAs LED light source, making the red LED light efficiency of 10 lumens / watt.