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"The best way to predict the future is to invent it"-Alan Kay

The Light Bulb Invention

The formation of the Edison General Electric Company in 1889 was the culmination of many years of arduous laboratory work incorporating the time and contributions of many other inventors all improving on an idea that was fifty years old. Thomas Edison himself was not solely responsible for inventing the light bulb!

How Many Other Inventors Contributed To The Light Bulb Invention?

Many other inventions and improvements on that fifty year-old idea by others, contributed to the final improvement by Edison which entailed the development of seven system elements. All of these efforts and changes led up to the development of the light bulb invention patented in 1875 by Thomas Alva Edison, The Wizard of Menlo Park!

What Seven System Developments Resulted In The Light Bulb Invention?

Edison was responsible for the parallel circuit an improved dynamo, the underground conductor network, devices for maintaining constant voltage, safety fuses and insulating materials, a light socket with on-off switches, and finally, a durable light bulb.

Was There Any One Critical Element Needed To Accomplish The Light Bulb Invention?

Edison worked to insure that the incandescent light was safe, economical and practical. The hardest part of the research seemed to be the discovery of the right kind of filament for the form of electric lighting that was practical for home use that would produce a bulb to burn for many hours. At that time, Edison achieved some success with a filament of carbonized sewing thread that burned for over thirteen hours.

Who Were The Other Contributors To The Light Bulb Invention?

Edward Shepard, Henricg Globel, Herman Sprengel, Henry Woodward, Sir Joseph Wilson Swan, Willis Whitney, and William David Coolidge, who invented an improved method of making tungsten filaments originally patented by General Electric Company. These inventions and improvements were made between 1850 and 1910, even though the patent was granted to Edison in 1889.

Were Any Further Improvements Made Since Edison Received A Patent For The Light Bulb Invention?

Edison himself continued to improve upon the longevity of hours of usage for the burning bulb. General Electric Company patented a method of making tungsten filaments for incandescent bulbs. In 1925 frosted lightbulbs were produced, and Phillips Company invented a lightbulb that lasts 60,000 hours using magnetic induction. The light bulb invention involved many hours of work by many inventors along the way.