Introduction to the invention of electric light 1, the birth of the first electric light.
Nowadays, electric light is very popular and has penetrated into people's lives, so many people are very grateful to the inventor of electric light. When it comes to who invented the electric light, many people will think of Edison. In fact, Edison was not the first person to invent the electric light. In fact, as early as 1800, the Italian inventor Alessandro Volta had invented the first incandescent lamp, but it was unknown at that time.
2. Humphrey David invented the arc lamp.
Was Humphrey really the inventor of the first lamp? David invented the world's first electric lamp in 1802. He piled the volta tower into a carbon electrode. Because the lamp he invented was a bright arc between two carbon rods, it was named arc lamp. Although the electric lamp he invented at that time was not very practical, many principles of the arc lamp he invented were widely used.
3. Warren De? Pull? Another name/surname/rudeness in Shandong Province
1840, British scientist Warren? De? Pull? Lu invented an efficient electric light bulb, which used a circle of platinum wire instead of copper wire. However, due to the high cost of platinum, this light bulb cannot be commercially successful.
4. William condition
Then in 1848, William of England? The country has invented a clock mechanism, which can adjust the movement of the carbon rod that corrodes the bulb rapidly and prolong the service life of the traditional arc lamp. Moreover, the cost of the battery used in this kind of lighting lamp is greatly reduced.
5. Joseph? swan
1850, British chemist Joseph? Swan used carbonized paper fiber instead of platinum light bulb, which solved the cost problem of previous inventors, and obtained a patent in 1878 and Britain. 1879 In February, he showed his work lamp in a speech and redesigned it. Swan filaments are placed in vacuum tubes to minimize their contact with oxygen and prolong their service life.
6. Joseph Swan and Thomas? Edison
Edison realized that the problem with swan design was the filament. 1879,65438+In February, he showed his light bulb. Joseph? Swan improved his light bulb and set up a power company, and then Andy sued for patent infringement. After that, the two inventors finally set up the world's largest light bulb factory together.
Edison was not the first person to invent the light bulb, but he made great contributions to the improvement and popularization of the light bulb. According to the official, because of his repeated experiments and improvements, the electric light can be popularized to the public, so even if he is not the first person to invent the electric light, his contribution to the electric light cannot be ignored.