Edison's filament lamp, 1879.

Image number: 10315472

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 was evacuated so that there was so little oxygen in the bulb that the filament could get white hot without burning.

Image number:
Science Museum/Science & Society Picture Library
Date taken:
20 October 2003 14:53
Image rights:
Science Museum

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