50 years
ago, people have to understand semiconductor material can generate a
basic knowledge of light, the first commercially produced in 1960 in
mid-diode. LED light distribution in English diode (light-emitting
diode) acronym, and its basic structure is an electroluminescent
semiconductor material, placed in a wire rack, and then sealed with
epoxy resin four weeks, played the role of protecting the internal core
wire Therefore, a good seismic performance LED. |