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Let Us Take Another Peek At Cheap Light Bulbs And Discover Its Beginnings
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Light bulbs or incandescent lamps are available in various types. Whilst there are traditional ones that we are familiar with, there are likewise those that are produced for a particular purpose. Projector bulbs, for instance, are used for projectors. Then there is the full-spectrum light bulb, which emits a specialized light called white light and are used to cure disorders attributable to inadequate exposure to sunlight.
However, it would be remarkable to know how cheap light bulbs have come to be available. Take note that “cheap” at this point is used to stand for commercial or that any regular consumer can afford. We take this into account because prior to the development of light bulbs, there were a chain of trials and discoveries that happened. Although the creation of the incandescent lamp is generally attributed to Thomas Edison, there are a lot of other scientists that have played a role to what we have now.
It was in 1802 that Humphry Davy of Great Britain made the earliest incandescent light. The current passed through a fine narrow piece of platinum, a metal that has an extremely high melting point. The light may have not been bright enough and did not last lengthy enough, however this demanded for further experiments and discoveries up until the first convenient light bulb was discovered by Thomas Edison in 1879.
Another experiment was from Warren de la Rue, who enclosed a coiled platinum filament in a vacuum tube where electric current went through it. It was an efficient design, but as you know, platinum costs high and, hence, not practical for business purposes. More experiments and designs were produced, and these include those by Frederick de Moleyns (1841), John W. Starr (1845), Jean Eugene Robert-Houdin (1851), and A.N. Lodygin (1872).
More efforts to coming up with practical incandescent lamps were made prior to Edison. Bound by these efforts are Joseph Wilson Swan (1850) and Henry Woodward and Matthew Evans (1874). While Swan worked with carbonized paper filaments in a clear glass bulb, Evans and Woodward created their incandescent lamps with different sizes and shapes of carbon rods placed between electrodes in glass cylinders that were stuffed with nitrogen.
Then there was Thomas Edison, who, in 1879, started to make major study on developing a useful light bulb. He did many experiments with platinum as well as other metal filaments, but eventually, he went back to using a carbon filament. The patent for his work was accorded to him in 1880.
Throughout the years, more developments have been made to incandescent lamps. We nowadays benefit from various types of light bulbs, examples of which include halogen light bulbs, compact fluorescent light bulbs, and other types of light bulbs. Of course, we would not have been using them if not for the great minds behind the creation of practical incandescent lamps.
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