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IPC Subgroup
H01J 3/12

Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses

Introduced: September 1968

Last revised: January 2006

Full Title

Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps > Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

Related Keywords

correcting ABERRATION of particle beams in discharge tubes