IPC Subgroup
H01J 29/1 Screens on, or from, which an image or pattern is formed, picked-up, converted, or stored
Introduced: September 1968
Last revised: January 2006
Full Title
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group > Electrodes; Screens; Mounting, supporting, spacing, or insulating thereof > Screens on, or from, which an image or pattern is formed, picked-up, converted, or stored
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
5 direct subcodes
Child Classifications
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- H01J 29/12 acting as light valves by shutter operation, e.g. for eidophor
- H01J 29/14 acting by discolouration, e.g. halide screen
- H01J 29/16 Incandescent screens
- H01J 29/18 Luminescent screens
- H01J 29/36 Photoelectric screens; Charge-storage screens