Automatically focusing field emission electrode

Electric lamp and discharge devices – Discharge devices having a multipointed or serrated edge...

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313308, 313336, 313351, 156644, 427 77, 445 24, 445 46, H01J 130, H01J 902

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active

048749818

ABSTRACT:
Several embodiments of a thin film field emission cathode array are described which automatically shape the beams of emitted particles, without the addition of shaping or other electrode structure. A potential field pattern is established to control the trajectory of the emitted particles, by controlling the electromagnetic interaction of the conductive structures responsible for the particle emission.

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Spindt et al.; "Recent Progress in Low-Voltage Field Emission Cathode Development"; Dec. 1984, Journal de Physique, Compendium C9, Supplement to vol. 45, No. 12, pp. 269-278.

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