LED lighting application discussion and technical research

LED lighting application discussion and technology research LED lighting, namely light-emitting diode lighting, is a kind of originals that use semiconductors to emit light. It has the advantages of high electro-optical efficiency, small size, long life, low voltage, energy saving and environmental protection. Today's society should strengthen its research. To better serve the society. , LED lighting technology research LED is a new type of light source, is the fourth generation of light source after incandescent lamps, fluorescent lamps, high-pressure gas discharge lamps. As early as the century, GE has developed the first visible red LED, and what is truly historical is that in the O century, Dr. Shuji Nakamura from Nichia invented the blue LED through the combination of various chemical materials. , Has obtained the vast market demand. With the successful development and commercialization of white light LEDs at the end of the decade, the application of LEDs in various fields has gradually become widespread and popular. , The working principle and characteristics of LED light-emitting diodes LED is a solid device that can convert electrical energy into light energy. Its structure is mainly composed of PN junction chips, electrodes and optical systems. Its basic working principle is to convert electrical energy into light. The energy process, that is, ultraviolet light, visible light, and infrared light can be emitted when a forward current is applied to the P-N junction. .High luminous efficiency LED luminous efficiency will reach-lumens/watt after improvement, and its light monochromaticity is good, the spectrum is narrow, and it can directly emit colored visible light without filtering. The light effect of incandescent lamps and halogen tungsten lamps is 1 ~ lumens/watt, fluorescent lamps ~ lumens/watt, and sodium lamps ~ lumens/watt. Most of the power consumption becomes heat loss. At present, countries all over the world are stepping up research on improving the luminous efficiency of LEDs. In the near future, their luminous efficiency will be greatly improved, and to a certain extent, they can compete with traditional light sources. .Low power consumption LED single tube power. ~ O. watts, using DC drive, single tube driving voltage. ~. volts, current ~ 1 mA, fast response speed, can be operated at high frequency. In the case of the same lighting effect, the power consumption is one-eighth of incandescent bulbs and one-half of fluorescent tubes. .Environmentally friendly LEDs do not add 'mercury' during the production process, do not need to be inflated, do not need a glass shell, good impact resistance, good shock resistance, not easy to break, easy to transport, very environmentally friendly, and are called 'green energy.