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1. 发明专利

JP2002313256A ELECTRON GUN AND CATHODE-RAY TUBE 失效
公开(公告)号：JP2002313256A
公开(公告)日：2002-10-25
申请号：JP2001118238
申请日：2001-04-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAKAMI FUMIAKI
IPC分类号： H01J29/48
摘要： PROBLEM TO BE SOLVED: To obtain an electron gun, in which appropriate support of the electrodes is realized and surface discharge between the electrodes is avoided, and to provide a cathode-ray tube. SOLUTION: The electron gun comprises a cathode, that emits stream of electrons, a plurality of electrodes which have a passing hole of the electron stream, an electrode support member that protrudes on the same plane from the plural electrodes, and an insulating support body that fixes the electrode supporting member. The cross sections of the electrode support members on the surface of the insulating support body between at least one set of adjoining electrodes are constructed, so as not to be overlapped in the axis direction of the emission of the electron steam.

2. 发明专利

JP2002367532A Electron gun for cathode-ray tube 审中-公开
标题翻译：电子枪用于阴极射线管
公开(公告)号：JP2002367532A
公开(公告)日：2002-12-20
申请号：JP2001175417
申请日：2001-06-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MURAKAMI FUMIAKI
IPC分类号： H01J29/48 , H01J23/34 , H01J25/10 , H01J29/50
CPC分类号： H01J29/48 , H01J2229/70
摘要： PROBLEM TO BE SOLVED: To provide an electron gun for a cathode-ray tube capable of reducing a dispersion in performance among products caused by machining errors.
SOLUTION: The electron gun for a cathode-ray tube includes cathodes 1, 2 and 3, a control electrode 4, an electron-flow extraction electrode 5, a focusing electrode 6, and an anode 7. The electron-flow extraction electrode 5 has first, second and third electron beam holes 11, 12 and 13 arranged in a line. The side of the focusing electrode 6 opposite to the electron-flow extraction electrode 5 has fourth, fifth and sixth electron beam holes 21, 22 and 23 arranged to face the first, second, and third electron beam holes 11, 12 and 13, respectively. The fourth and sixth electron beam holes 21 and 23 in the focusing electrode 6 are shaped to connect the sides of the straight lines of semicircular parts 21b and 23b to one side of each of square parts 21a and 23a, with the square parts 21a and 23a disposed outside and the semicircular parts 21b and 23b inside.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种能够减少由加工误差引起的产品在性能上的分散性的阴极射线管用电子枪。解决方案：用于阴极射线管的电子枪包括阴极1,2和3，控制电极4，电子流引出电极5，聚焦电极6和阳极7.电子流引出电极5具有第一，第二和第三电子束孔11,12和13排成一行。聚焦电极6的与电子流引出电极5相对的一侧具有分别与第一，第二和第三电子束孔11,12和13相对配置的第四，第五和第六电子束孔21,22和23 。聚焦电极6中的第四和第六电子束孔21和23被成形为将半圆形部分21b和23b的直线的侧面与方形部分21a和23a的一侧连接，方形部分21a和23a 设置在外部，半圆形部分21b和23b内部。

3. 发明专利

JP2001143638A MANUFACTURING METHOD OF ELECTRON GUN AND COMPENSATION ELECTRODE 失效
公开(公告)号：JP2001143638A
公开(公告)日：2001-05-25
申请号：JP32083699
申请日：1999-11-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHONO KAZUHIRO , MURAKAMI FUMIAKI
IPC分类号： H01J9/14 , H01J29/48
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of parallel opposed plate electrodes from an electrode material with mitigating their length restriction to increase the designing freedom. SOLUTION: A manufacturing method of parallel opposed plate electrodes comprises the processes of forming a pair of notches in a conductive plate material, drawing or bulging the flat portion between the pair of notches so as to form a projected portion with a plane surface portion parallel to the plate material and plane surface portions vertical to the plate material, and removing the plane surface portion parallel to the plate material by stamping so as to obtain a pair of the opposed plate electrodes protruding from the edges of the opening formed by the stamping.

4. 发明专利

JP2003173748A IN-LINE ELECTRON GUN FOR CATHODE-RAY TUBE 审中-公开
公开(公告)号：JP2003173748A
公开(公告)日：2003-06-20
申请号：JP2001371018
申请日：2001-12-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAKAMI FUMIAKI , SHONO KAZUHIRO
IPC分类号： H01J29/48
摘要： PROBLEM TO BE SOLVED: To provide an in-line electron gun for a cathode-ray tube in which an optimal electron beam track can be easily obtained, without redesigning a first and a second member of the focusing electrode and the final accelerating electrode. SOLUTION: This in-line electron gun for cathode-ray tube comprises a main focusing lens that is composed of a focusing electrode and a final accelerating electrode 2. The final accelerating electrode 2 includes a first member 21 that is opposed to the focusing electrode and has a beam passing aperture 21a of elliptical shape, a second member 22 that is positioned at the back of this first member 21 and has three independent beam passing apertures 22a-22c, and a third member 23 that is positioned at the back of this second member 22 and has three independent beam passing apertures 23a-23c. An overhanging part (field adjustment means) 4 that overhangs from the end face 23d opposed to the end face 22d of the second member 22 toward the main focusing lens and is perpendicular to the plane including the three electron beams 3 is provided at the third member 23. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2001357795A ELECTRODE FOR INLINE ELECTRON GUN 失效
公开(公告)号：JP2001357795A
公开(公告)日：2001-12-26
申请号：JP2000174738
申请日：2000-06-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAKAMI FUMIAKI
IPC分类号： H01J29/48
摘要： PROBLEM TO BE SOLVED: To provide electrodes for the inline electron guns which have easily formed concavities (squeezed form) in the bottom of the cup-shaped electrodes for shape adjustment of the electron beam. SOLUTION: In the bottom, flat plate flange is provided at the periphery where electron beam holes 14a, 14b, 14c are arranged in inline; the first electrode 140, which has electron-beam holes at squeezed-shaped portion 14j formed by contracting the bottom with specific space, and the second electrode 141, which is formed in cup-shape with a flat plate bottom, and which has multiple perforation holes 14g, 14h, 14i at the bottom with the same pitch as the electron-beam holes, are provided; to make each electron-beam hole and perforation hole concentric, the flange of the first electrode 140 and the flat plate bottom of the second electrode part 141 are fixed.

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