Alexander Nikolayevich Lodygin, known after immigration to US as Alexandre de Lodyguine was a Russian electrical engineer and inventor, one of inventors of the incandescent light bulb. Alexander Nikolayevich Lodygin was born in Stenshino village, Tambov Governorate, Russian Empire. His parents were of a very old and noble family, but of very moderate means. He studied at the TambovCadet School. Then he served in the 71st Belev regiment, and in 1866–1868 studied at the Moscow Infantry School. Soon after graduation from his military school he retired from the military and worked as a worker at the Tula weapons factory.
Timeline
1872: He decided to go toSaint Petersburg to attend lectures at Saint Petersburg Institute of Technology and to start working on an electrical helicopter. The electrical helicopter would need some sort of artificial lighting that would have to be electrical. He decided to start his helicopter work by developing a source of electrical light for it.
1872: He applied for a Russian patent for his filament lamp. He also patented this invention in Austria, Britain, France, and Belgium. For a filament, Lodygin used a very thin carbon rod, placed under a bell-glass.
1884: As a result, he had to emigrate from Russia to France and United States.
1895: He married the German reporter Alma Schmidt, the daughter of an electrical engineer.
1890s: He invented a few types of filament lamps with metallic filaments; some say he was the first scientist to use a tungsten filament. He got a patent for lamps with tungsten filaments and sold it to General Electric, who began the first industrial production of such lamps.
1907: Lodygin returned to Russia. He continued work on a series of his inventions, including a new type of electrical motor, electrical welding, tungsten alloys, electrical ovens and smelting furnaces. He taught at Petersburg Institute of Electrical Engineering and worked for the Petersburg railroad.
He invented an incandescent light bulb before Thomas Edison, but it was not commercially profitable. The lamp with a tungsten filament is indeed the only design used now, but in 1906 they were too expensive. Several Lodygin's ideas were implemented much later, even after his death. In 1871 Lodygin proposed an autonomous diving apparatus that consisted of a steel mask, natural rubber costume, accumulator battery and a special apparatus for electrolysis of water. The diver was supposed to breathe the oxygen-hydrogen mix obtained by electrolysis of water. The invented diving apparatus was very similar to modern scuba equipment His ideas for an electrical helicopter were used many years later by Igor Sikorsky.
