H01J29/48 - CPC Classification Index

ClassID:

205022 ⎘

H01J29/48 - 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

Sub-classes:

H01J29/481 » {Electron guns using field-emission, photo-emission, or secondary-emission electron source} 160
H01J29/482 » {Electron guns using electron multiplication} 9
H01J29/484 » {Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission } 8
H01J29/485 » {Construction of the gun or of parts thereof } 24
H01J29/487 » {Replacing parts of the gun; Relative adjustment of the electrodes } 0
H01J29/488 » {Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes} 30
H01J29/50 » Two or more guns in a single vacuum space, e.g. for plural-ray tube 3
H01J29/51 » Arrangements for controlling convergence of a plurality of beams {by means of electric field only} 10

Recent Application in this class:

20250343019

ULTRAVIOLET CATHODE RAY TUBE

20210305003

X-ray generation apparatus

20190341217

Optically addressed, thermionic electron beam device

20190272969

Triode electron gun

20190074154

Multi-grid electron gun with single grid supply

20180269024

Low work function electron beam filament assembly

20180033582

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, and rotary vacuum seal

20180033581

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal

20180033580

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal

20180033579

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal

20180019093

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal

20180019092

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal

20180019091

Emitter, electron gun using emitter, electronic apparatus using electron gun, and method of producing emitter

20170265293

Hybrid linear accelerator with a broad range of regulated electron and X-ray beam parameters includes both standing wave and traveling wave linear sections for providing a multiple-energy high-efficiency electron beam or X-ray beam useful for security inspection, non-destructive testing, radiation therapy, and other applications

20160064174

Electron gun supporting member and electron gun apparatus

20160020058

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal

20150241335

Electron gun abnormality detecting device and electron gun abnormality detecting method

20150144800

Device for producing an electron beam

20130134324

Compact high-voltage electron gun

20080211376

Electron gun, electron beam exposure apparatus, and exposure method

20070063631

Cathode ray electron gun with an improved beam formation structure

20070046959

Printable pixel structure with carbon fiber emitters

20060232191

Gate-controlled electron-emitter array panel, active matrix display including the same, and method of manufacturing the panel

20060202602

Electron gun for cathode ray tube

20060202601

Electron gun for cathode ray tube and cathode ray tube with the same

20060043868

Electron gun assembly and cathode ray tube with the same

20050258731

Color cathode ray tube apparatus

20050248253

Cathode ray tube

20050225225

Cathode ray tube having magnetic pieces at predetermined locations within the electron gun components

20050218779

Electron gun assembly for cathode ray tube

20050057178

Flat panel display device including electron beam sources and control electrodes

20050023953

Resistor for electron gun assembly, electron gun assembly, and cathode-ray tube