General Electric - Prototype Conical Deflectron

The so-called “Deflectron” is an electrostatic deflection system consisting of a cylindrical electrode pattern photo-etched on the interior wall of the tube. An axial magnetic field is provided by an external solenoid.

• Kurt Schlesinger, Internal Electrostatic Deflection Yokes, Electronics Vol. 25 No. 7, July 1952.

See also • Voir aussi • Siehe auch : Vidicon camera tube, prototype

Patents • Brevets • Patente :
• US3319110 K. Schlesinger - Electron Focus Projection and Scanning System
• US3666985 K. Schlesinger - High Resolution Electron Optic System for Camera Tubes
• US4097745 H. Parks - High Resolution Matrix Lens Electron Optical System
• US2937312 K. Schlesinger - Cathode Ray Device

 

Longueur • Length • Länge : 66 mm • 2" 6/10
Diamètre • Diameter • Durchmesser : 12 mm • 1/2" → 22 mm • 9/10"

 

Deflectrons have been considered in the construction of the Motorola "Printoscope", an all-electrostatic character-writing tube:

 

Click to enlarge

Click to enlarge

 

Later, Tektronix has also used a "deflectron" in its scan converter tubes:

 

See patent • Voir brevet • Siehe Patent: US3796910 E. Ritz - Electron Beam Deflection System

 

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