Cathode

Details Cathode Cathode

1995-03-30

1995-12-12

O'Shea, Sandra L.

Electric lamp and discharge devices

Electrode and shield structures

Indirectly heated cathodes

313411, 313441, 313310, 313346R, 313346DC, 313270, 313409, H01J 2904, H01J 120

Patent

active

054752817

ABSTRACT:
A low-power cathode can be obtained by arranging it on a substrate (1), preferably of silicon, which is entirely or partly removed at the location of the emissive structure (11) by means of, for example, anisotropic etching. Because of its low power, the cathode is particularly suitable for multi-beam applications.

REFERENCES:
patent: 3013328 (1961-12-01), Beggs
patent: 3389290 (1968-06-01), Yoshida et al.
patent: 3495120 (1970-02-01), Knippenbers et al.
patent: 3504220 (1970-03-01), Iofis et al.
patent: 4069436 (1978-01-01), Nakayama et al.

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