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A high-resolution color CRT for CAD/CAM use

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4 Author(s)
H. Nakanishi ; Mitsubishi Electric Corporation, Nagaokakyo, Kyoto, Japan ; S. Okuda ; T. Yoshida ; T. Sugahara

A 19-V color CRT with 64-kHz scanning was developed for CAD/CAM use. A new gun was designed by a three-dimensional phase space method and with the aid of a three-dimensional beam tracing computer simulation. A newly developed oxide cathode was applied to the gun in order to improve the life performance of cathode emission. The spot size at 2 percent of peak was reduced to 0.8 mm at 200 µA. A significant reduction of misconvergence to 0.2 mm was achieved through the use of a small beam-to-beam gun spacing, a new deflection yoke, and a new frittable getter.

Published in:

IEEE Transactions on Electron Devices  (Volume:33 ,  Issue: 8 )