Patent · US Expired

Electron-optical image tubes

US3973117A · kind A · utility

8Cited by
10References
2Claims
0Family size

Inventor

Key dates

Filing dateJul 23, 1973
Grant dateAug 3, 1976
Priority date
Expiry dateJul 23, 1993

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J31/44
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An electron-optical image tube is provided which avoids the limitations imposed by photographic and image storage techniques and which enables a direct linear intensity profile of a pulse train to be obtained. The image tube, instead of having a phosphor screen, has a disc with one or more slit apertures therethrough and a photoelectron image is scanned across the aperture or apertures. The time spacing of the light pulses can be adjusted so that the time of the image tube coincides with the fixed aperture or apertures in the disc when a continuous circular scan is used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.