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公开(公告)号：JP2000319765A
公开(公告)日：2000-11-21
申请号：JP12770299
申请日：1999-05-07
Applicant: SUMITOMO METAL IND , MATSUSHITA ELECTRONICS CORP
Inventor： KITA ISATO , AOKI MASAHIRO , TSUGE SHINJI , ADACHI KAZUHIKO , ARIMOTO NOZOMI
Abstract: PROBLEM TO BE SOLVED: To obtain a metallic material for a shadow mask whose thermal expansion coefficient is smaller than that of low carbon steel, whose cost is more inexpensive than that of an invar alloy, small in the amt. to be plastically deformed at high temp., provided with high strength sufficiently satisfiable even as that of a shadow mask used in the state of high tension and excellent in etching workability as well. SOLUTION: As a metallic material for a shadow mask, a stainless steel sheet-contg. 9 to 20% Cr,
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2.发明专利
公开(公告)号：JPH11355795A
公开(公告)日：1999-12-24
申请号：JP16010998
申请日：1998-06-09
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： OSHIMA YOSHIFUMI , ARIMOTO NOZOMI , MASUDA MITSUYA
Abstract: PROBLEM TO BE SOLVED: To correct mislanding due to a change in the environmental temperature by measuring the environmental temperature of a color cathode-ray tube of a device consisting of a color selection electrode, an electron gun and the color cathode-ray tube to be placed opposite to a fluorescent screen, changing and correcting an electron beam orbit according to the environmental temperature. SOLUTION: A temperature sensor 21 is provided outside, inside the casing to store the color cathode-ray tube 1, in the vicinity of a driving circuit 22 in the casing and the surface of a front panel, etc., on which temperature (the environmental temperature) is reflected. An outputted signal of the measured temperature from the temperature sensor 21 is converted into current by the driving circuit 22. The driving circuit 22 is constituted so that specified outputted current corresponding to the outputted signal from the temperature sensor 21 is outputted by a preliminarily relating specified environmental temperature and current to be outputted at the time based on experimental data. The outputted current from the driving circuit 22 is supplied to a correction coil 23. A specified magnetic field is generated inside the color cathode-ray tube 1 and the electron beam orbit is changed by the correction coil 23.
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公开(公告)号：JPH1074465A
公开(公告)日：1998-03-17
申请号：JP34932496
申请日：1996-12-27
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： CHIKADA MASAHIKO , OMAE HIDEJI , ARIMOTO NOZOMI
IPC: H01J29/48
Abstract: PROBLEM TO BE SOLVED: To reduce the deterioration of the modulation efficiency of an electrode beam path and the heating of an electrode resulting from eddy current generated in an electron gun metal electrode portion in a high frequency magnetic field by using nonmetal material such as ceramic for an electron gun electrode portion in a cathode-ray tube. SOLUTION: By using nonmetal material for an electron gun electrode portion 1a, the occurrence of eddy current resulting from the high frequency magnetic field 9 of a convergence yoke 8 and the like is suppressed, no deterioration of modulation efficiency of an electron beam path is allowed even in a high frequency modulation area, and also the heating of the electrode portion 1a is suppressed. Since the deterioration of the modulation efficiency of the electron beam path by an alternating current magnetic field is little even in a high frequency modulation area exceeding 100kHz, no excess power is required for a deflection yoke, a convergence yoke, a velocity modulation coil, and the like even in the cathode-ray tube of a high grade television and the like in which high frequency modulation is conducted so that the breakage of a cathode-ray tube neck portion resulting from the heating of the electrode portion can be prevented.
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公开(公告)号：JPH0721938A
公开(公告)日：1995-01-24
申请号：JP16686393
申请日：1993-07-06
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： ARIMOTO NOZOMI , NAGAMICHI HIROKAZU
Abstract: PURPOSE:To correct misconvergence caused by Lorentz force generated by electron beams on both outsides of three electron beams generating on the inside of an electron gun of an inline type color cathode-ray tube and earth magnetism in an axial direction of the electron gun. CONSTITUTION:A magnetic substance 13 is installed in an axial direction of an electron gun 12 so that three electron beams 2a, 2b, 2c generating on the inside of the inline type electron gun 12 sealed in a cylindrical neck tube 11 slenderly extending from a funnel glass member 9 are put, in the horizontal direction of a screen, between the magnetic substance 13, and at least parts of magnetic substance face to each other on the outside of the neck tube 11.
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公开(公告)号：JPH04286841A
公开(公告)日：1992-10-12
申请号：JP5224791
申请日：1991-03-18
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： HONDA MASANOBU , ATSUMI TORU , ARIMOTO NOZOMI
Abstract: PURPOSE:To provide a deflection yoke appratus having good convergence properties with a lessened number of parts. CONSTITUTION:In a deflection yoke apparatus installed in a color television picture tube of an in-line-type electron gun, a vertical coil is separated into two coil parts at the intermediate taps 15a, 15b, 18a, 18b drawn out at one site and diode circuit 20, 21 are connected in series with one coil part of them. The diode circuit is composed of two diodes 20, 21 arranged in parallel while their polarities are set reversely.
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Patent Agency Ranking
公开(公告)号：JPS587015B2
公开(公告)日：1983-02-08
申请号：JP4528776
申请日：1976-04-20
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： ARIMOTO NOZOMI
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公开(公告)号：JPS5441750A
公开(公告)日：1979-04-03
申请号：JP10853577
申请日：1977-09-08
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： ARIMOTO NOZOMI
IPC: G02B6/32 , G02B6/02 , G02B6/42 , H01L31/0232
Abstract: PURPOSE:To achieve the increase in the output energies of light emitted from the output end of an optical fiber by bonding other material of a different refractive index in approximately spherical face form to one end face of the optical fiber and providing a luminous body layer to the end thereof.
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公开(公告)号：JPH11288672A
公开(公告)日：1999-10-19
申请号：JP29892598
申请日：1998-10-20
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： KIMURA MASAMICHI , ARIMOTO NOZOMI
IPC: H01J29/07
Abstract: PROBLEM TO BE SOLVED: To provide a color picture tube which is inexpensive and of high reliability by avoiding changes in interval between ribbon-shaped plates caused by the vibration, twisting, etc., of the ribbon-shaped plates, without using gallium materials. SOLUTION: A color picture tube has a face panel having phosphors of plural colors on its inner surface, a shadow mask 16 provided in a position opposite to the inner surface of the face panel and formed by arranging a plurality of ribbon-shaped plates 15 in the form of stripes, and a mask frame 17 where the plurality of ribbon-shaped plates 15 are fixed between a pair of opposite supporting parts 17a, 17b by stretching both ends of each ribbon- shaped plate 15 on the pair of supporting parts 17a, 17b. At the shadow mask 16, the plurality of ribbons-shaped plates 15 and a plurality of bridges 18 connecting the adjacent ribbon-shaped plates 15 together are integrally molded, and the shadow mask 16 is fixed between a pair of the supporting parts 17a, 17b of the mask frame 17 in such a manner that the adjacent ribbon-shaped plates 15 differ in stretching force.
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公开(公告)号：JPH11250835A
公开(公告)日：1999-09-17
申请号：JP4980798
申请日：1998-03-02
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： ARIMOTO NOZOMI , KIHARA ATSUSHI
IPC: H01J29/88
Abstract: PROBLEM TO BE SOLVED: To reduce power consumption by a deflector. SOLUTION: A cathode-ray tube 1 comprises: a face panel 2 with a phosphor screen 2a formed at the inner surface thereof; a funnel 3; an electron gun 5 housed inside a neck 3a of the funnel 3; a deflector 6 disposed at the outer peripheral surface of the funnel 3; and a shadow mask 7 disposed substantially in parallel to the phosphor screen 2a. A first conductive film 10a is formed in a region from the front end of the funnel 3 to the front end of the deflector 6. A second conductive film 10b is formed in a region from the front end of the deflector 6 to the rear end of the deflector 6. The first conductive film 10a is connected to an anode terminal 11 at the outer surface of the funnel 3. The second conductive film 10b is connected to a contact spring 12 of the electron gun 5. A resistor RA is interposed between the first conductive film 10a and the second conductive film 10b. Another resistor RB is interposed between the front end of the electron gun 5 and the ground. Consequently, a voltage Vn defined by an equation expressed below is applied to the second conductive film 10b:Vb =RB.Va /(RA+RB), wherein Va represents a potential of the first conductive film 10a.
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公开(公告)号：JPS63285851A
公开(公告)日：1988-11-22
申请号：JP12195687
申请日：1987-05-19
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： ARIMOTO NOZOMI
Abstract: PURPOSE:To reduce distortion of a raster and mis-convergence by disposing compensation coils wound around a ribbon-shaped core close to the large diameter part of a pair of horizontal deflection coils and connecting them to the rest of deflection coils. CONSTITUTION:Auxiliary coils 5 are disposed at the large diameter part of a horizontal deflection coil 3, that is, the part close to the bent part situated opposing a fluorescent screen. These auxiliary coils 5 are formed in such a way as copper wires are wound around a ribbon-shaped core 6, accordingly, when a current flows through a left side coil 8L and a right side coil 8R formed close to the left and right ends of the core 6, small magnetic fields with the same polarity are generated. The core parts where the coils 8L and 8R mentioned above are situated are formed as thicker than a center core part in order to reduce magnetic resistance. Accordingly, by magnetic field action caused by the supporting coils 5, electron beams are slightly deflected outward at the center upper and lower legs of a raster and also the ends of them are deflected far outward, so that distortion of the raster and also mis-convergence can be reduced.
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