Shielded helix traveling wave cathode ray tube deflection structure

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868597

Norris, Neil J ^[1]; Hudson, Charles L ^[1]

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1. Santa Barbara, CA

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.

• Research Organization: EG & G ENERGY MEASUREMENTS INC
• Sponsoring Organization: USDOE
• DOE Contract Number: AC08-88NV10282
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5172029
• OSTI ID: 868597
• Country of Publication: United States
• Language: English

Related Subjects

shielded
helix
traveling
wave
cathode
ray
tube
deflection
structure
various
embodiments
helical
coil
crt
described
illustrated
provide
shielding
adjacent
threaded
formed
male
female
threads
pitch
utilized
placed
shield
confine
field
generated
prevent
inhibit
cross-coupling
generation
fast
fields
otherwise
deflect
beam
time
synchronization
electron
pulse
cathode ray
ray tube
traveling wave
various embodiments
electron beam
beam pulse
helical coil
deflection structure
field generated
tube deflection
coil deflection
deflection coil
wave cathode
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