Title:
ELECTRON GUN AND IMAGE RECEIVING TUBE
Document Type and Number:
Japanese Patent JP3800040
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent distortion when making the negative electrode smaller of an electron beam spot in an electron gun provided with an electric field emission negative electrode.
SOLUTION: The negative electrode 15 is that which is provided with an electron discharge electrode 18 installed on a substrate 16, a draw-out electrode 19 to form an electric field between the electron emission electrode 18, and a terminal 20 and a conductor wire 21 in order to apply voltage to the electron discharge electrode 18 and the draw-out electrode 19 respectively, and a shield electrode 5 is further arranged between the negative electrode 15 and the control electrode 6, and the shield electrode 5 has a cylindrical protruding part 10 into which the electron beam passes and which protrudes in the direction of the negative electrode 15.
More Like This:
| JP2684996 | CATHODE-RAY TUBE |
Inventors:
Yamauchi Masahide
Takashi Ito
Koji Fujii
Keisuke Koga
Toru Kawase
Takashi Ito
Koji Fujii
Keisuke Koga
Toru Kawase
Application Number:
JP2001182775A
Publication Date:
July 19, 2006
Filing Date:
June 18, 2001
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01J29/48; H01J3/02; H01J29/04; (IPC1-7): H01J29/48
Domestic Patent References:
| JP8106848A | ||||
| JP7182990A | ||||
| JP10154470A | ||||
| JP9082248A | ||||
| JP10106429A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano
Previous Patent: THERMO-OPTIC TYPE LIGHT ATTENUATOR
Next Patent: INSPECTION APPARATUS AND METHOD OF TIP SECTIONAL SURFACE SHAPE OF WORK
Next Patent: INSPECTION APPARATUS AND METHOD OF TIP SECTIONAL SURFACE SHAPE OF WORK