H01J31/50 - CPC Classification Index

ClassID:

205142 ⎘

H01J31/50 - CPC Classification

Classification description:

Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output

Sub-classes:

H01J31/501 » {with an electrostatic electron optic system } 5
H01J31/503 » {with an electromagnetic electron-optic system } 3
H01J31/505 » {flat tubes, e.g. proximity focusing tubes} 1
H01J31/506 » {tubes using secondary emission effect} 13
H01J31/508 » {Multistage converters} 3
H01J31/52 » having grid-like image screen through which the electron ray or beam passes and by which the ray or beam is influenced before striking the luminescent output screen, i.e. having "triode action" 0
H01J31/54 » in which the electron ray or beam is reflected by the image input screen on to the image output screen 0
H01J31/56 » for converting or amplifying images in two or more colours 3

Recent Application in this class:

20250284111

2025-09-11

SEMI-TRANSPARENT DETECTOR ARRAY AND SPATIALLY TUNABLE FILTER ARRAY

20250246392

2025-07-31

DESIGN OF LATTICE MATCHED PHOTOCATHODES FOR EXTENDED WAVELENGTHS

20250140505

2025-05-01

ELECTRONICALLY ADDRESSABLE DISPLAY INCORPORATED INTO A TRANSMISSION MODE SECONDARY ELECTRON IMAGE INTENSIFIER

20240170248

2024-05-23

PARTICLE BEAM SYSTEM

20240170247

2024-05-23

Lattice matched photocathodes for extended wavelengths

20230305285

2023-09-28

SEMI-TRANSPARENT DETECTOR ARRAY AND SPATIALLY TUNABLE FILTER ARRAY

20220342097

2022-10-27

Neutron imaging system having neutron shield

20220268697

2022-08-25

ELECTRO-OPTICAL SEMI-TRANSPARENT PHOTONIC UP-CONVERTER

20210335566

2021-10-28

Electronically addressable display incorporated into a transmission mode secondary electron image intensifier

#10

20200309973

2020-10-01

Neutron imaging system having neutron shield

#11

20200194211

2020-06-18

Digital shutter control for bright flash recover in night vision equipment

#12

20190189408

2019-06-20

Photocathode assembly of vacuum photoelectronic device with a semi-transparent photocathode based on nitride gallium compounds

#13

20190164733

2019-05-30

Dual-spectrum photocathode for image intensification

#14

20190164659

2019-05-30

Phosphor screen for MEMS image intensifiers

#15

20190066962

2019-02-28

Photocathode including silicon substrate with boron layer

#16

20190019646

2019-01-17

Image intensifier for night vision device

#17

20180095029

2018-04-05

Biology-based enhanced vision using light amplification and adaptable to thin films

#18

20170219812

2017-08-03

Night vision apparatus and methods

#19

20170089671

2017-03-30

Optoelectronics system and methods

#20

20170074726

2017-03-16

Mounting system and method for night vision tubes

#21

20170069455

2017-03-09

Photocathode including silicon substrate with boron layer

#22

20150228439

2015-08-13

Electron tube

#23

20140368728

2014-12-18

Methods and apparatus for high speed camera

#24

20140367558

2014-12-18

Methods and apparatus for high speed camera

#25

20140285085

2014-09-25

Streak tube with connection lead to reduce voltage propagation differences

#26

20140211033

2014-07-31

MULTIPLE SPECTRAL SINGLE IMAGE SIGHTING SYSTEM USING SINGLE OBJECTIVE LENS SET

#27

20140063502

2014-03-06

Image intensifier tube design for aberration correction and ion damage reduction

#28

20140034816

2014-02-06

Photocathode including silicon substrate with boron layer

#29

20140027622

2014-01-30

Microplasma night vision device

#30

20130293091

2013-11-07

Thick-film resistorized ceramic insulators for sealed high voltage tube electrodes

#31

20130229561

2013-09-05

Multiple spectral single image sighting system using single objective lens set

#32

20130161535

2013-06-27

Fibre optic phosphor screen comprising an angular filter

#33

20130114158

2013-05-09

Systems and methods for utilizing imperfectly manufactured image intensifier tubes in night vision systems

#34

20120320182

2012-12-20

ELECTRO OPTICAL IMAGE-MAGNIFYING DEVICE

#35

20120306349

2012-12-06

Image intensifier

#36

20120069433

2012-03-22

Image intensifier tube with a mounting surface

#37

20120043470

2012-02-23

X-RAY IMAGING APPARATUS

#38

20110101224

2011-05-05

Power supply and night vision device using the power supply

#39

20110042550

2011-02-24

Image sensor cell for night vision

#40

20100253218

2010-10-07

Photocathode, electron tube, and photomultiplier tube

#41

20100116993

2010-05-13

RADIOGRAPHY MEASURING APPARATUS AND RADIOGRAPHY MEASURING METHOD

#42

20100102204

2010-04-29

Active optical limiting semiconductor device and method with active region transparent to light becoming opaque when not biased

#43

20100025583

2010-02-04

Multiband infrared imaging device

#44

20090273281

2009-11-05

PHOTOCATHODE AND ELECTRON TUBE HAVING THE SAME

#45

20080245966

2008-10-09

Long-wavelength infra-red night vision goggles

#46

20080073492

2008-03-27

Correction of the distortion of an image intensifier electron tube

#47

20070228259

2007-10-04

SYSTEM AND METHOD FOR FUSING AN IMAGE

#48

20070176160

2007-08-02

Electron tube

#49

20070160335

2007-07-12

Absorptive clad fiber optic faceplate tube

#50

20070090291

2007-04-26

Method and system for modulating frequency in a night vision system power system

#51

20070040106

2007-02-22

Imaging device with focus switching means for day and night vision

#52

20060284121

2006-12-21

Cold electron emitter

#53

20050174052

2005-08-11

Transmission type photocathode including light absorption layer and voltage applying arrangement and electron tube

#54

20050104527

2005-05-19

Transmitting type secondary electron surface and electron tube

#55

20050098738

2005-05-12

Phosphor screen and imaging assembly

#56

20050051709

2005-03-10

NIGHT VIEWER ACCOMODATING MULTIPLE IMAGE TUBE TYPES

#57

14179089

2016-08-23

Second imaging device adaptable for use with first imaging device and method for using same

#58

12871142

2014-10-07

Indicating desiccant in night vision goggles