Quick-acting electron-optical lenses

Details Quick-acting electron-optical lenses Quick-acting electron-optical lenses

1978-11-21

1981-01-13

Dixon, Harold A.

Radiant energy

With charged particle beam deflection or focussing

Magnetic lens

250311, 250396R, 315382, G21K 108

Patent

active

042451590

ABSTRACT:
An electron-optical lens arrangement for electron beam apparatus having a static and a dynamic focussing lens system, in which the dynamic focussing lens system is situated inside the static focussing lens system.

REFERENCES:
patent: 2220303 (1940-11-01), Tingley
patent: 2664521 (1953-12-01), Schlesinger
patent: 2973433 (1961-02-01), Kramer
patent: 3100260 (1963-08-01), Wilska
patent: 3852597 (1974-12-01), Yanaka et al.

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