orthicon

• Veraltete elektronische Bildaufnahmeröhre, die in frühen Fernsehkameras verwendet wurde, bei der die von einer photoempfindlichen Schicht proportional zur einfallenden Lichtintensität emittierten Elektronen auf ein Target fokussiert werden und dort Sekundäremission auslösen.

A now obsolete picture pickup tube used in early television cameras, where electrons emitted from a photoemissive surface in proportion to the intensity of incident light are focused onto a target, causing secondary emission of electrons.

1. Television camera tubeC2formaltechnical

   A now obsolete picture pickup tube in a television camera; electrons emitted from a photoemissive surface in proportion to the intensity of the incident light are focused onto the target causing secondary emission of electrons.

   Orthikon

   • The orthicon was a key component in early television cameras.
   • Engineers replaced the orthicon with more advanced image sensors.
   • The orthicon tube required precise calibration to function correctly.