In 1801, an English chemist named Humphrey Davy used platinum wire to generate electricity and light in his laboratory.
In 1810, he invented the electric candle, which was illuminated by the electric arc between two carbon rods. This was the earliest form of electric light.
In December 1878, Joseph Swan made a vacuum light bulb which was powered by carbon wire. In 1880, it was patented in The United Kingdom. In 1881, his incandescent light bulb was officially marketed.
In October 1879, Edison finally succeeded in making a carbon fiber filament incandescent bulb, called "carbon cotton filament incandescent lamp".
During this period, he continued to improve the technology, and finally decided to use tungsten wire as a filament, called "tungsten filament lamp", and finalize the use of today, Edison also became recognized as the inventor of the electric light.
ANATOMY坂崎琢磨
