Edison's electric carbon filament lamp

Made:
1879 in United States and Menlo Park
maker:
Thomas Alva Edison
and
Ludwig K Boehm
Certificate signed by Thomas Alva Edison stating that the lamp Certificate signed by Thomas Alva Edison stating that the lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Early carbon and rod filament incandescent electric lamp 1878-9 Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp Original incandescent electric carbon filament lamp

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Certificate signed by Thomas Alva Edison stating that the lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Certificate signed by Thomas Alva Edison stating that the lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Early carbon and rod filament incandescent electric lamp 1878-9
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Original incandescent electric carbon filament lamp, by Thomas Alva Edison, Menlo Park, New Jersey, United States of America, with bulb made by Ludwig K. Boehm, Menlo Park, New Jersey, United States of America, 1879

Very early incandescent electric lamp made by Thomas Alva Edison (1847-1931), this lamp has a single loop of carbon which glowed when a current flowed through it. The glass bulb (made by the glass blower, Boehm) was evacuated so that there was so little oxygen in the bulb that the filament could get white hot without burning.

The first practical electrical incandescent lamps were invented independently in the late 1870s by Joseph Swan in England and Thomas Edison in the USA. Advances in filament design, vacuum technique and glass-blowing led to the rapid refinement of the lamps and ultimately to the ubiquity of electric lighting. Edison himself supervised the installation of the world's first permanent, commercial central power system, which became operative in September 1882, to power electric light.

Parts

Edison certificate of lamp life

Edison certificate of lamp life

An Edison certificate of lamp life, for the original incandescent electric carbon filament lamp. The certificate states "This lamp was lighted 1390 hours and gave a light of 13 candles. Thomas A Edison, Menlo Park, Sept 15 1880."

Materials:
paper (fibre product)
Object Number:
1880-70/2
type:
certificate