Edison (1847 ~ 193 1) is a world-famous American electrician, scientist and inventor, and is known as the "king of inventions in the world". In addition to his inventions and contributions in phonograph, electric light, telegraph and film, he also has many famous creations and opinions in mining, architecture, chemical industry and other fields. Edison and his employees had about 2,000 inventions in their lifetime, which made great contributions to the progress of human civilization. Edison was also a great entrepreneur. 1879, Edison founded "Edison Electric Lighting Company". 1880, incandescent lamps went on sale. 1890, Edison merged its various businesses into Edison General Electric Company. 189 1 year, Edison's thin filament and high vacuum incandescent bulb were patented. 1892, Tom Houston Company and Edison Electric Lighting Company merged to form the General Electric Company, and from then on, GE began its hegemony in the field of electrical appliances for a century. Edison is also known as "the father of light", "Prometheus in reality" and "the king of invention". He holds more than 0/000 invention patents of incandescent lamp, phonograph, carbon particle telephone receiver, film projector, etc.