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公开(公告)号：NL1007951A1
公开(公告)日：1998-10-20
申请号：NL1007951
申请日：1998-01-05
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： YAMAMOTO TAKASHI , NOHARA HIROSHI , NAKAYAMA SHIKI , SUGIMOTO KOUICHI , TAKEDA KAZUO , ODA SHIGEFUMI , NISHIURA YOSHIHARU
Abstract: A metal halide lamp of the present invention has a ceramic discharge tube and a proximity conductor disposed adjacent to the ceramic discharge tube.
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公开(公告)号：NL1007951C2
公开(公告)日：1998-12-15
申请号：NL1007951
申请日：1998-01-05
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： YAMAMOTO TAKASHI , NOHARA HIROSHI , NAKAYAMA SHIKI , SUGIMOTO KOUICHI , TAKEDA KAZUO , ODA SHIGEFUMI , NISHIURA YOSHIHARU
Abstract: A metal halide lamp of the present invention has a ceramic discharge tube and a proximity conductor disposed adjacent to the ceramic discharge tube.
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公开(公告)号：DE10081618T1
公开(公告)日：2001-08-09
申请号：DE10081618
申请日：2000-05-25
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： ODA SHIGEFUMI , NOHARA HIROSHI , NISHIURA YOSHIHARU , NAKAYAMA SHIKI , YAMAMOTO TAKASHI
Abstract: A discharge tube (1) made of transparent ceramics includes a main tube (17) and slender tubes provided on both sides thereof. In one of the slender tubes, a main electrode lead-in member that is connected to a main electrode (6b) is inserted and sealed. In the other two-hole slender tube, a main electrode lead-in member that is connected to a main electrode (6a) and an auxiliary electrode lead-in member that is connected to an auxiliary electrode (9) are inserted and sealed so as to be isolated electrically from each other. With such a structure, it is possible to achieve highly efficient and stable lifetime characteristics and suppress changes in characteristics during lifetime caused by leaks during an operation and reaction between a sealing material and an enclosed material inside the discharge tube. In addition, it is possible to obtain a high-pressure metal vapor discharge lamp that has stable lamp starting characteristics and allows a free design of the discharge tube.
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4.发明专利
公开(公告)号：DE19743702A1
公开(公告)日：1998-04-09
申请号：DE19743702
申请日：1997-10-02
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： YAMAMOTO TAKASHI , NAKAYAMA SHIKI , NOHARA HIROSHI , NISHIURA YOSHIHARU , ODA SHIGEFUMI
Abstract: The discharge lamp has a discharge tube (1), made of transparent or through shining ceramic material and contains at least one luminescence material. The discharge tube has a main tube (6), a first disc which is arranged at an opening of the main tube (6) and a second disc (16b), which is arranged at the other opening of the main tube. The discharge tube includes several cylindrical narrow tubes made of ceramic material and fixed at the first and second discs. Several lead in parts are provided, which are arranged at the pair of main electrodes (7a,7b) and auxiliary electrodes (8) in the main tube (6). A sealing element is formed integrally with the lead in part, so that the sealing element is so inserted in the cylindrical small tube, that the cylindrical small tube is sealed air tight.
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公开(公告)号：DE19801485A1
公开(公告)日：1998-10-22
申请号：DE19801485
申请日：1998-01-16
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： YAMAMOTO TAKASHI , NOHARA HIROSHI , NAKAYAMA SHIKI , SUGIMOTO KOUICHI , TAKEDA KAZUO , ODA SHIGEFUMI , NISHIURA YOSHIHARU
Abstract: The lamp has a ceramics discharge envelope (4) containing a pair of discharge electrodes (8a,8b) and a metal halogenide as the light-emitting material, with a conductor (9a,10), acting as the current lead for one of the electrodes, extending immediately adjacent the outside of the discharge envelope, or in contact with it. The discharge envelope and the adjacent conductor are contained within a transparent or translucent glass envelope (1) which is evacuated or filled with an inert gas.
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Patent Agency Ranking
公开(公告)号：JP2000353420A
公开(公告)日：2000-12-19
申请号：JP16329399
申请日：1999-06-10
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： KAKISAKA SHUNSUKE , NAKAYAMA FUMINORI , YAMAMOTO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To prevent a dielectric breakdown between a power supply wire and a vapor deposition film from being produced when a discharge lamp is started again right after it is turned off. SOLUTION: This discharge lamp is equipped with a reflector 1 having an opening part 1a on one end part and a conductive vapor deposition film 10 formed on its inner surface, an arc tube 2 provided in the reflector 1, a front glass 3 bonded to the opening part 1a of the reflector 1, a ferrule 4 provided at the other end part of the reflector 1 while having an opening part on the reflector 1 side, and power supply wires 5a, 5b derived from the opening end of the ferrule 4 to supply power to the arc tube 2. The shortest distance (d) from the opening end of the ferrule 4 to the end of the vapor deposition film 10 on the ferrule 4 side satisfies a relationship equation of 3
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公开(公告)号：JP2000113859A
公开(公告)日：2000-04-21
申请号：JP36921098
申请日：1998-12-25
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： NOHARA KOJI , NISHIURA YOSHIHARU , SUGIMOTO KOICHI , KAKISAKA SHUNSUKE , TAKEDA KAZUO , AKIYOSHI KENJI , NAKAYAMA FUMINORI , YAMAMOTO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a high-reliability seal section having a stable optical characteristic during its life, improve luminous efficiency and improve a luminous flux build-up characteristic in the initial stage of lighting. SOLUTION: This metal vapor discharge lamp is provided with an arc tube 1 made of a translucent ceramic, an outer tube 2 surrounding the arc tube 1, and metal wires 3a, 3b fixing the arc tube 1 in the outer tube 2. Nitrogen with the prescribed pressure is sealed in the outer tube 2. The arc tube 1 is provided with a main tube section 5 and fine tube sections 6 provided at both ends of the main tube section 5. A conductive cermet 7 is inserted into each fine tube section 6, and the fine tube section 6 is sealed by glass frit 8. The frit 8 is poured into the gap between the inner face of the fine tube section 6 and the outer face of the conductive cermet 7 until the distance L between the discharge space side end face of the frit 8 and a discharge space end face becomes 7 mm. The temperature on the discharge space side end face of the frit 8 is 800 deg.C at maximum.
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公开(公告)号：JPH11191386A
公开(公告)日：1999-07-13
申请号：JP36082697
申请日：1997-12-26
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： SUGIMOTO KOICHI , NOHARA KOJI , NISHIURA YOSHIHARU , TAKEDA KAZUO , YAMAMOTO TAKASHI , NAKAYAMA FUMINORI
IPC: H01J61/30
Abstract: PROBLEM TO BE SOLVED: To provide a metallic vapor discharge lamp that secures its characteristics in its life and has small variation of its characteristics in relation to the change of the lighting direction by eliminating a disc out of components constituting an arc tube and reviewing the shape of the arc tube. SOLUTION: For a metallic vapor discharge lamp which has a pair of electrodes 17 in its container and has an arc tube in which at least a luminescent metal compound is filled in the container, a structure is so composed that the container has a first cylindrical part 11, second cylindrical parts 12 and third cylindrical parts 13, each of the second cylindrical parts 12 is formed at each of both the ends of the first cylindrical part 11 interposing a tapered part 14, each of the third cylindrical parts 13 is secured on each of the second cylindrical parts 12, the electrodes 17 each run through each of the third cylindrical parts 13 and face each other in the container, the electrodes 17 are attached to the third cylindrical parts 13 by the use of sealing bodies 18, a clearance is provided in between each inside wall of the third cylindrical parts 13 and each of the electrodes 17, the angle formed by the internal surface of each of the tapered parts 14 and the center axis of each of the electrodes 17 is 40-80 deg..
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公开(公告)号：JPH10302725A
公开(公告)日：1998-11-13
申请号：JP11077197
申请日：1997-04-28
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： NOHARA KOJI , YAMAMOTO TAKASHI , NAKAYAMA FUMINORI , TAKEDA KAZUO , NISHIURA YOSHIHARU , SUGIMOTO KOICHI , ODA SHIGEFUMI
IPC: H01J61/54
Abstract: PROBLEM TO BE SOLVED: To provide a stable lamp characteristic during lighting and improve a re-start characteristic by applying the constitution that a radiation source having a cover of alumina and the specific range of a radiation dose is sealed as a starting auxilairy substance into a luminous tube containing metal halide, mercury an rare gas sealed inside. SOLUTION: An outer tube 3 internally has a luminous tube 2 of light transmission alumina with a pair of electrodes 1 inside, and a light transmission cylinder 4 surrounding the luminous tube 2. In addition, a sealed radiation source 8 as a starting auxiliary substance 8, a prescribed amount of mercury, starting rare gas and metal halide are sealed into the luminous tube 2. Also, the sealed radiation source 8 has a radiation dose within the range of 1.0 to 37 MBq, and formed so that a carrier made of alumina is coated with a radiation layer of alumina containing radioactive material, and a thin film of non-radioactive layer of alumina is formed on the radiation layer. In this case, the crystal grain size of the alumina is preferably taken at a value equal to or above 15 μm. According to this construction, a sealed radiation source having a carrier mainly composed of alumina can be put to practical use.
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公开(公告)号：JPH10294085A
公开(公告)日：1998-11-04
申请号：JP10217097
申请日：1997-04-18
Applicant: MATSUSHITA ELECTRONICS CORP
Inventor： NAKAYAMA FUMINORI , YAMAMOTO TAKASHI , NOHARA KOJI , SUGIMOTO KOICHI , TAKEDA KAZUO , ODA SHIGEFUMI , NISHIURA YOSHIHARU
Abstract: PROBLEM TO BE SOLVED: To enable illuminating operation by a low pulse voltage and shorten start and re-start time by constituting a metal halide lamp by a ceramic material, sealing a pair of electrodes and at least a metal halide being a luminous material and disposing a proximal conductor proximal to or in contact with the luminous tube. SOLUTION: At one end of an external lead wire 6a, one end of a proximal conductor 10 is fixed. The other end of the proximal conductor 10 is disposed proximal to a luminous tube 4. The proximal conductor 10 is provided with a given potential by a pulse voltage applied during lighting, and insulation destruction of rare gas in the luminous tube 4 and mercury steam is promoted. By annexing this proximal conductor 10, this lamp reduces a pulse voltage during start and re-start, and time required for start and re-start can be reduced. Further, there is no need for applying an emitter substance to an electrode.
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