Shielded helix traveling wave cathode ray tube deflection structure
Various embodiments of a helical coil deflection structure of a CRT are described and illustrated which provide shielding between adjacent turns of the coil on either three or four sides of each turn in the coil. Threaded members formed with either male or female threads and having the same pitch as the deflection coil are utilized for shielding the deflection coil with each turn of the helical coil placed between adjacent threads which act to shield each coil turn from adjacent turns and to confine the field generated by the coil to prevent or inhibit cross-coupling between adjacent turns of the coil to thereby prevent generation of fast fields which might otherwise deflect the beam out of time synchronization with the electron beam pulse. 13 figs.
- Research Organization:
- EG & G ENERGY MEASUREMENTS INC
- DOE Contract Number:
- AC08-88NV10282
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5172029; A
- Application Number:
- PPN: US 7-643304
- OSTI ID:
- 7205097
- Resource Relation:
- Patent File Date: 22 Jan 1991
- Country of Publication:
- United States
- Language:
- English
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Shielded helix traveling wave cathode ray tube deflection structure
Shielded helix traveling wave cathode ray tube deflection structure