Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps

Introduced: September 1968

IPC and CPC are identically structured here. All 12 subcodes exist in both systems.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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H01J 3/02 Electron guns +8 CPC IPC+CPC Available in IPC and CPC
H01J 3/04 Ion guns IPC+CPC Available in IPC and CPC
H01J 3/06 two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes (H01J3/07 takes precedence) IPC+CPC Available in IPC and CPC
H01J 3/07 Arrangements for controlling convergence of a plurality of beams since 1974 IPC+CPC Available in IPC and CPC
H01J 3/08 Arrangements for controlling intensity of ray or beam (H01J3/02, H01J3/04 take precedence) IPC+CPC Available in IPC and CPC
H01J 3/10 Arrangements for centring ray or beam (H01J3/02, H01J3/04 take precedence) IPC+CPC Available in IPC and CPC
H01J 3/12 Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses (H01J3/02, H01J3/04 take precedence) IPC+CPC Available in IPC and CPC
H01J 3/14 Arrangements for focusing or reflecting ray or beam (H01J3/02, H01J3/04 take precedence) IPC+CPC Available in IPC and CPC
H01J 3/26 Arrangements for deflecting ray or beam IPC+CPC Available in IPC and CPC
H01J 3/36 Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration IPC+CPC Available in IPC and CPC
H01J 3/38 Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements IPC+CPC Available in IPC and CPC
H01J 3/40 Arrangements for removing or diverting unwanted particles, e.g. for negative ions or fringing electrons; Arrangements for velocity or mass selection IPC+CPC Available in IPC and CPC