New Developments In Very High Resolution Vidicons

James K. Fisher

doi:10.1117/12.955332

10 April 1977 New Developments In Very High Resolution Vidicons

James K. Fisher

Proceedings Volume 0099, 3rd European Electro-Optics Conf; (1977) https://doi.org/10.1117/12.955332
Event: Third European Electro-Optics Conference, 1976, Geneva, Switzerland

Abstract

F.P.S. (Focus Projection and Scan) vidicons combine the advantages of electrostatic deflection and magnetic focusing into a unique electron optics design. Recent design modifications have resulted in dramatic improvements in the areas of: limiting resolution and MTF, shading, cathode efficiency, signal handling capability and ruggedization. A new self-aligning electron gun, as well as improvements in electron optics, have combined to reduce the beam spot size to approximately six micrometers. F.P.S. tubes have been quali-fied to Mil-Std-810A (USAF) specifications. The 16 mm F.P.S. tube was recently qualified to modified Mil-Std-810B specifications which included 10 hours of both sinusoidal and random vibration at 22 g, from 50 to 2000 Hz. New F.P.S. vidicons exhibit higher beam efficiencies by virtue of their electron gun improvements. These devices require 1/3 to 1/2 the cathode current to discharge the target, and since cathode life is a primary factor in tube life, this lower current demand may be translated into longer life. Additionally, these devices will provide sufficient beam current, without spot defocusing to discharge very high signal levels at the target. Because of their ruggedness, small size and low power requirements, F.P.S. vidicons have been supplied for several U.S. military systems.

Citation Download Citation

James K. Fisher "New Developments In Very High Resolution Vidicons", Proc. SPIE 0099, 3rd European Electro-Optics Conf, (10 April 1977); https://doi.org/10.1117/12.955332

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