The history of light bulbs, but in fact, before Andy was born, many people devoted themselves to the research and development of light bulbs. 180 1 year, British chemist David realized luminescence by electrifying platinum wire. Although it was only a faint light at that time, it was an epoch-making initiative.
Later, in 18 10, David invented the electric candle. Its principle is that a very high voltage difference is formed between two carbon rods, and an arc is generated by current breakdown effect for lighting. The advantage of this lighting method is much higher brightness, but the disadvantage is instability and insecurity.
1854, according to the principle of incandescent lamp, Henry Goebbels used carbonized bamboo filaments to emit light for 400 hours, but Henry did not apply for a patent. As a result, Swan took the patent of carbon filament light bulb at 1878.
At the beginning, Edison actually used carbon filament as filament, and successfully kept the lighting time for nearly 1200 hours. Unfortunately, Swan sued Edison for infringing his patent right, so Edison had to start looking for new materials and finally invented the tungsten filament incandescent lamp.
There is something wrong with the incandescent lamp. When the voltage changes, the filament of an incandescent lamp will burn out soon. Moreover, incandescent lamps emit heat through high temperature, and the tungsten filament will gradually become thinner. Even if nothing happens, incandescent lamps need to be replaced after a period of use.
Chai Laite found this and thought it was a business opportunity. In addition, he entered the electric appliance company in his early years and began to study light bulbs earlier than Edison, so his experience, ability, equipment and materials are not inferior to Edison.
As a result, Chai Laite began to devote himself to the research and development of light bulbs. After a while, he finally developed a carbon filament light bulb and took part in an electrical competition. In this competition, all the inventors of light bulbs took part, including Edison.
One of the competitions is to see whose light bulb can withstand higher voltage. As a result, after pressurization, only Chai Laite's light bulbs became brighter and brighter, and all the light bulbs, including Edison's, exploded, which made Chai Laite very happy, and later began to mass-produce his own light bulbs.
A century-old magic lamp 190 1 year, a fire station in California, USA, installed a carbon filament light bulb of Chai Laite. After being electrified, this light bulb works normally and emits good light, which is about equivalent to the brightness of the current 5-watt incandescent lamp.
Although it seems that the brightness is very thin now, under the conditions at that time, such a light bulb is still quite bright. Besides, this light bulb has been on for more than one hundred years.
Light bulbs with such good quality were naturally popular at first, which also brought a lot of benefits to Chai Laite, so Chai Laite began mass production, but after a period of time, Chai Laite found that his light bulbs could not be sold.
It turns out that the quality of light bulbs produced by Chai Laite is so good that every household doesn't have to change them if they buy a few. When the market was saturated, no one bought the light bulbs produced by Chai Laite, so that the light bulb manufacturers closed down a few years later.
Since then, incandescent lamps have become brighter, fluorescent lamps and other kinds of light bulbs have been invented, and Chai Laite's carbon filament light bulbs have completely withdrawn from the historical stage. Only the light bulb of that fire station is still shining around the clock until now, and there is still no problem after 1 19, so it is also called "magic lamp".
But in any case, Chai Laite's spirit of invention is still worth learning. Edison is known as the king of invention, and he has obtained numerous patents in his life. Tungsten lamp has been used in the world for more than one hundred years, and it is one of the most important inventions in modern world history.