Claims
- 1. An electron gun for a multigun cathode ray tube comprising, three cathodes mounted side by side so as to define a center cathode and two side cathodes, three first electrodes which are generally cylindrical-shaped and are formed with beam emitting apertures mounted so as to respectively, surround said three cathodes, a second electrode formed with three beam apertures mounted adjacent said three first electrodes, a third electrode mounted adjacent said said electrode and having a first portion adjacent said second electrode formed with a center and two side beam apertures and said first portion being curved so that its beam apertures do not lie in the same plane and having a second portion spaced from said first portion add formed with a center and two side beam apertures which are larger than said beam apertures in said first portion and the outer edges of said first and second portions connected together to form an enclosed space and the distance between the center beam apertures in said first and second portions being greater than the distances between said side beam apertures, a fourth electrode mounted adjacent said third electrode and having a planar portion with three beam apertures and a tubular portion attached to said planar portion, a fifth tubular shaped electrode of large diameter adjacent said fourth electrode, a sixth tubular shaped electrode mounted adjacent said fifth electrode, means for applying fixed focusing voltages to said first, second, third, fourth and sixth electrodes, and means for applying a dynamic voltage to said fifth electrode.
- 2. An electron gun according to claim 1 wherein said second portion of said third electrode is planar and said center cathode is spaced further from said second portion of said third electrode than said two side cathodes.
- 3. An electron gun according to claim 2 wherein said three first electrodes comprise a center first electrode and two outer first electrodes which are mounted so that they are not parallel to said center first electrode.
Priority Claims (3)
Number |
Date |
Country |
Kind |
61-153312 |
Jun 1986 |
JPX |
|
61-153313 |
Jun 1986 |
JPX |
|
61-153314 |
Jun 1986 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 067,979, filed June 30, 1987 now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (7)
Number |
Date |
Country |
0013041 |
Jul 1980 |
EPX |
1966566 |
Jan 1983 |
DEX |
19755 |
Feb 1980 |
JPX |
1258337 |
Dec 1971 |
GBX |
1279524 |
Jun 1972 |
GBX |
1289419 |
Sep 1972 |
GBX |
2112564 |
Jul 1983 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
67979 |
Jun 1987 |
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