This image is not available for purchase in your country.

Cathode ray tube

Cathode ray tube

T540/0149

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY

Caption

Cathode ray tube. Image 2 of 2. Demonstration showing how a beam of electrons can be deflected by a magnetic field, as seen in television cathode ray tube (CRT) displays. Here, electricity from the wires (left) is heating a cathode to produce a beam (blue) of electrons (also called a cathode ray), which is seen by the ionisation of the gas around it. Helmholtz coils (round) surround the glass tube and are providing the magnetic field to deflect the electron beam. This deflection of an electron beam is used to move the beam to create the images seen on a television CRT screen. See image T540/148 for this electron beam being used to produce green fluorescent light from the phosphor-coated area at right.

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) }}