History Of Light Bulbs
The history of light bulbs is important. As the light is a very useful thing in the day-to-day life of the people, the people used different types of sources of light. In these sources, also the lamps came in to the list during the seventeenth century. Many scientists from the world experimented for the development of electric lighting.
The first records are for the electric lighting is available for the Humphry Davy. In 1802, he had built the most powerful battery in the world at that time. He was working at he royal Institution in Britain. In the same year, while his experiments he passed a heavy electric current through a platinum strip. This gave out light. However, this source was not commercially important as the light was not sufficient and the platinum strip did not last long.
However, this was the stepping-stone for the idea of getting light from the electric source. Many scientists took inspiration from this and started working for the development of light that would work on electricity. They tried different things for this but were not practically successful.
In 1809, Davy made an arc lamp. This contained two charcoal rods connected to each other through a battery having 2000 cells. This instrument he demonstrated the Royal Institution the next year. From then onwards it became popular as the Arc lamp.
Then the next important event was the demonstration of the constant electric light in Dundee in Scotland. James Bowman Lindasy did this. He had claimed that this light gave enough light that could enable a person to read a book in when this by keeping this light at a distance of one and a half feet. Then he did not try to improve this and turned his attention wireless telegraphy.
Then in 1840, Warren de la Rue a British, made a lamp that contained a platinum foil in a vacuum tube. This had good efficiency however; the design did not become popular because of the cost of the platinum.
In 1841, Frederick de Moleyns of England made an electric bulb that contained platinum electrodes with the difference that in this he used charcoal powder in between them. He received a patent for this. Similarly, in 1854 an American John Wellington Starr got a patent for a lamp consisting two carbon filaments. However, he died after he received this patent and therefore there is not much information about his work.
In 1872, Alexander Nikolayevich Lodygin made the first incandescent lamp and received a patent for it.
In this way, 75 years passed away after like this. Then in 1879, Thomas Edison created the first electrical lamp, which was practically usable. However, a German-American inventor Heinrich Göbel claimed that long back in the 1850 he had created a bulb similar to the Edison's lamp. However, this claim proved to be false.
Edison had invented an incandescent lamp that contained carbon filament.
However even though the Edison invented a practically usable lamp it took some time to become popular. When Edison got the patent, he established a company along with some other associates. This company started manufacturing bulbs for commercial purpose. Along with this company, one more company the His United States Electric Lighting Company was also another company that started manufacturing lamps.