ClassID:

205212

H01J37/1413 - CPC Classification

Classification description:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof; Details; Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement; Lenses magnetic; Electromagnetic lenses Means for interchanging parts of the lens, e.g. pole pieces, within the tube

Recent Application in this class: