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Development Of Led Energy-saving Lamps
Dec 05, 2018

   The basic knowledge of the ability of semiconductor materials to produce light was known in the 1960s. The first commercial diode was born in 1960.

LED is the abbreviation of English light emitting diode. Its basic structure is an electroluminescent semiconductor material placed on a leaded shelf and then sealed with epoxy resin to protect the inner core. The role, so the LED's seismic performance is good.

   Originally used as an indicator light source for instrumentation, LEDs of various light colors have been widely used in traffic lights and large-area displays, resulting in good economic and social benefits. Take the 12-inch red traffic light as an example. In the United States, a long-life, low-efficiency 140-watt incandescent lamp was used as the light source, which produced 2000 lumens of white light. After passing the red filter, the light loss is 90%, leaving only 200 lumens of red light. In the newly designed lamp, Lumileds used 18 red LED light sources, including circuit losses, to consume 14 watts of electricity, which can produce the same light effect. Automotive signal lights are also an important area for LED light source applications.

For general lighting, people need a white light source. In 1989, white LEDs were successfully developed.