This image is not available for purchase in your country.

Coloured X-ray of an electric light bulb

Coloured X-ray of an electric light bulb

T194/0430

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

GUSTOIMAGES / SCIENCE PHOTO LIBRARY GUSTOIMAGES / SCIENCE PHOTO LIBRARY

Caption

Light bulb. Coloured X-ray of an electric light bulb. At upper centre, the coiled filament can be seen inside the glass envelope. The filament is doubly coiled. A fine tungsten wire (about 0.01mm thick) is wound into a helical coil, and then wound into a larger diameter helical coil. Tungsten is ideal for a filament as it is strong and has a high melting point (3410 degrees Celsius). The glass bulb is filled with an inert nitrogen/argon mixture to prevent oxidation. As the bulb runs, however, small amounts of tungsten deposit onto the glass. Eventually, this results in a break in the filament and the bulb "blows". The average life of such a bulb is 1,000 hours.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}