Low-loss cathode for a television camera tube

Details Low-loss cathode for a television camera tube Low-loss cathode for a television camera tube

1982-11-12

1985-10-15

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313446, 313346DC, H01J 128, H01J 2904, H01J 3138

Patent

active

045476942

ABSTRACT:
By providing the cathode, in a diode electron gun in a television camera tube, with an at least 40 .mu.m high collar extending in the direction of the anode, the anode current is considerably reduced.

REFERENCES:
patent: 2798180 (1957-07-01), Winter
patent: 2810089 (1957-10-01), MacNair
patent: 3831058 (1974-08-01), Van Roosmalen
patent: 3986066 (1976-10-01), Goll
patent: 4215457 (1980-08-01), Kuiper et al.
Broerse, P. H. et al., "An Experimental Light-Weight Colour Television Camera," Philips Technical Review, vol. 29, No. 11, pp. 325-335 (1968).

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