Title:
ELECTRON GUN FOR CATHODE-RAY TUBE AND CATHODE-RAY TUBE
Document Type and Number:
WIPO Patent Application WO/2002/031855
Kind Code:
A1
Abstract:
A multi-beam electron gun for a cathode-ray tube for projecting electron beams onto a fluorescent screen to bombard phosphor crystals of the same color of the cathode-ray tube and a cathode-ray tube having such an electron gun are disclosed. Electron beams (SB1, SB2) are emitted for the phosphor of the same color of a cathode-ray tube. Electron beam passing holes common to the electron beams (SB1, SB2) are formed in the front-stage lens (PL) and the main lens (ML). The electron beams (SB1, SB2) cross each other between the front-stage lens (PL) and the main lens (ML). The spot size of the multi-beam electron gun is small, and the electron beams do not deviate from their paths even the drive voltage fluctuates. Thus, a high-resolution cathode-ray tube producing a favorable picture is realized.
Inventors:
ENDO NARUHIKO (JP)
OUCHI YOSHIHIRO (JP)
ASAKI REO (JP)
SANTOKU MASATAKA (JP)
OUCHI YOSHIHIRO (JP)
ASAKI REO (JP)
SANTOKU MASATAKA (JP)
Application Number:
PCT/JP2001/008822
Publication Date:
April 18, 2002
Filing Date:
October 05, 2001
Export Citation:
Assignee:
SONY CORP (JP)
ENDO NARUHIKO (JP)
OUCHI YOSHIHIRO (JP)
ASAKI REO (JP)
SANTOKU MASATAKA (JP)
ENDO NARUHIKO (JP)
OUCHI YOSHIHIRO (JP)
ASAKI REO (JP)
SANTOKU MASATAKA (JP)
International Classes:
H01J29/48; H01J29/50; (IPC1-7): H01J29/50
Foreign References:
| JP2000123757A | 2000-04-28 | |||
| EP0734583B1 | 1999-12-22 | |||
| JP2000048737A | 2000-02-18 |
Attorney, Agent or Firm:
Matsukuma, Hidemori (8-1 Nishishinjuku 1-chome Shinjuku-ku, Tokyo, JP)
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