Camera tube for thermal imaging

Details Camera tube for thermal imaging Camera tube for thermal imaging

1980-04-04

1982-03-30

Smith, Alfred E.

Radiant energy

Infrared-to-visible imaging

Including image tube-type detector

250330, H01J 3150

Patent

active

043226205

ABSTRACT:
A camera tube for thermal imaging is disclosed comprising an entrance window of an electrically conductive material, a target for converting the thermal image, and an electron beam system for scanning the target. Incident thermal radiation is modulated by means of a mechanical chopper functioning as a modulator directly in front of the entrance window. The entrance window is electrically isolated from the target and is preferably grounded. By so doing, the target is shielded against electrical influences due to the modulator.

REFERENCES:
patent: 3774043 (1973-11-01), Le Carvennec
Watton et al., "Performance of the Pyroelectric Vidicon for Thermal Imaging in the 8-14 Micron Band", IEEE Trans. on Electron Devices, 21 (8), Aug. 1974, pp. 462-469.

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