Edison's filament lamp, 1879.

Image number: 10320636

Edison's filament lamp, 1879.

Made by the American inventor Thomas Alva Edison (1847-1931). Edison's lamp had a single loop of carbon which glowed when a current flowed through it. The glass bulb contained a partial vacuum; there was so little oxygen in the bulb that the filament could get very hot without catching fire. This lamp was presented to the Science Museum by Edison.

Image number:
10320636
Credit:
Science Museum/Science & Society Picture Library
Date taken:
20 October 2003 16:04
Image rights:
Science Museum
 

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