H01J29/50 - CPC Classification Index

ClassID:

205029 ⎘

H01J29/50 - CPC Classification

Classification description:

Details of cathode-ray tubes or of electron-beam tubes of the types covered by group; Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement; Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube

Sub-classes:

H01J29/503 » {Three or more guns, the axes of which lay in a common plane} 13
H01J29/506 » {guns in delta or circular configuration} 0

Recent Application in this class:

20170213685

2017-07-27

X-ray tube including hybrid electron emission source

20150117617

2015-04-30

X-ray tube

20060125403

2006-06-15

Display device having an electron gun with pre-focusing lens portion