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公开(公告)号：DE69518045T2
公开(公告)日：2001-03-22
申请号：DE69518045
申请日：1995-08-31
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ITO YOSHINOBU , MATUI RYOTARO
Abstract: A gas discharge tube of the present invention comprises a light-emitting section (2) in an envelope (1) sealing a gas therein, positioned at distal ends of lead pins (4a to 4e) and supported by the lead pins while spaced from an inner side wall of the envelope. The light-emitting section includes a hot cathode (7), an anode (8), a focusing electrode (13), and a discharge shielding member (6) having a front surface which faces to the hot cathode. The front surface of the discharge shielding member is defined by a first surface being in directly contact with the focusing electrode, for defining a position of said focusing electrode, a second surface continued from the first surface, for defining a distance between the focusing electrode and the anode, and a third surface continued from the second surface and being in directly contact with the anode, for defining a position of the anode.
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公开(公告)号：DE69517891D1
公开(公告)日：2000-08-17
申请号：DE69517891
申请日：1995-08-31
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ITO YOSHINOBU , MATUI RYOTARO
Abstract: The present invention is to provide a gas discharge tube which is properly lighted to improve the reproducibility of a satisfactory light emission state. The gas discharge tube includes an envelop (11) for accommodating a hot cathode (25) for emitting thermoelectrons, an anode (24) for receiving the thermoelectrons, a focusing electrode (26) having a focusing opening for converging paths of the thermoelectrons, and a discharge shielding member (21) supporting the focusing electrode and the anode, the discharge shielding member further supporting a cathode box for surrounding the hot cathode while electrically insulated from the focusing electrode. And since a lighting device for the gas discharge tube sets the focusing electrode a zero or negative potential while an electric field generated between the hot cathode and the anode, the lighting device will be certainly turn on.
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公开(公告)号：DE69415966T2
公开(公告)日：1999-07-15
申请号：DE69415966
申请日：1994-09-06
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ITO YOSHINOBU , MATUI RYOTARO
Abstract: A gas discharge tube of the present invention has an envelope for accommodating an anode (24) for receiving thermoelectrons emitted from a thermionic cathode (25), a focusing electrode (26) for focusing a path of the thermoelectrons from the thermionic cathode to the anode, and a discharge shielding plate (21) consisting of a material having electrical insulating properties, the anode being arranged in contact with one end of the discharge plate, and the focusing electrode being arranged in contact with the other end of the discharge shielding plate. Since the anode and the focusing electrode are arranged in contact with both the sides of the discharge shielding plate consisting of an insulating material such as a ceramic, the positions of these electrodes are held at high accuracy, and the electrical insulating properties therebetween are maintained even at a high temperature during long-time continuous light emission. For this reason, a short circuit between the electrodes and variations in length of a discharge path can be prevented. Therefore, a gas discharge tube having a long service life and a high operational stability during long-time continuous light emission can be provided.
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公开(公告)号：DK3534067T3
公开(公告)日：2022-01-10
申请号：DK19158304
申请日：2019-02-20
Applicant: HAMAMATSU PHOTONICS KK
Inventor： MURAYAMA KYOICHI , MIYAMOTO YOSHITERU , KASHIWABARA HIROYA , MATUI RYOTARO
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公开(公告)号：ES2831501T3
公开(公告)日：2021-06-08
申请号：ES19173682
申请日：2019-05-10
Applicant: HAMAMATSU PHOTONICS KK
Inventor： MURAYAMA KYOICHI , MATUI RYOTARO , HAKAMATA YASUMASA , MAEJIMA KOJI
IPC: B01D39/16
Abstract: Un filtro de aire que comprende: una primera porción de uretano (20) hecha de espuma de poliuretano y que tiene permeabilidad al aire; y una segunda porción de uretano (30) hecha de espuma de poliuretano y dispuesta de manera que se solape con una parte (26) de la primera porción de uretano (20), la segunda porción de uretano (30) tiene una densidad más alta que la primera porción de uretano (20), y caracterizado por que, la primera porción de uretano (20) y la segunda porción de uretano (30) están integradas entre sí mediante unión por termocompresión en un estado en el que la segunda porción de uretano (30) está incorporada en la parte (26) de la primera porción de uretano (20).
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Patent Agency Ranking
公开(公告)号：DE69829077D1
公开(公告)日：2005-03-24
申请号：DE69829077
申请日：1998-12-22
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ADACHI KOUZOU , ITO YOSHINOBU , MATUI RYOTARO
Abstract: In a gas discharge tube in which a sealed envelope at least a part of which transmits light is filled with a gas, and electric discharge is generated between anode and cathode sections disposed within the sealed envelope, so as to emit predetermined light outside from the light-transmitting part of the sealed envelope, the anode section is mounted on an insulating anode support member, an insulating electrode support member having an opening for exposing the anode section is mounted on a surface surrounding the anode section, a focusing electrode having a focusing opening projecting toward the anode section is further mounted at the front face of the opening, and the cathode section is disposed on the anode support member or focusing electrode support member so as to be spaced from the focusing opening.
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公开(公告)号：DE69816484T2
公开(公告)日：2004-05-27
申请号：DE69816484
申请日：1998-12-22
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ADACHI KOUZOU , ITO YOSHINOBU , MATUI RYOTARO
Abstract: In the gas discharge tube of the present invention, for elongating the life of the discharge tube 1 itself while lowering the assembling temperature, a side tube 14 itself is formed from glass, and a metal is employed in a joint between a stem 4 and the side tube 14. Namely, a metal-made first peripheral portion 15 provided in the stem 4 and a metal-made second peripheral portion 16 provided in the side tube 14 are utilized in the joint. As a result, the discharge tube 1 itself can be made smaller.
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公开(公告)号：DE69812428T2
公开(公告)日：2003-10-30
申请号：DE69812428
申请日：1998-12-22
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ADACHI KOUZOU , ITO YOSHINOBU , MATUI RYOTARO
Abstract: While high heat is generated in the anode section 6 in the gas discharge tube 1 in accordance with the present invention during its use, the heat is transmitted to the stem 4 by way of the anode support plate 5 due to a configuration in which the anode support plate 5 abuts against the stem 4, and is released outside from the stem 4, whereby the cooling efficiency of the anode section 6 is improved. Since the anode section 6 employs not a floating structure including stem pins 10 interposed therein but a configuration in which it is seated on the stem 4 by way of the anode support plate 5, the anode section 6 is stabilized on the stem 4, whereby the resistance to vibration improves. Also, for assembling the anode section 6 into a sealed envelope 2, it will be sufficient if the anode support plate 5 is mounted on the stem 4, which contributes to improving the easiness in assembling the gas discharge tube 1.
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公开(公告)号：DE69627410D1
公开(公告)日：2003-05-22
申请号：DE69627410
申请日：1996-02-16
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ITO YOSHINOBU , MATUI RYOTARO
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公开(公告)号：DE69620936T2
公开(公告)日：2002-11-07
申请号：DE69620936
申请日：1996-02-16
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDO TOMOYUKI , ITO YOSHINOBU , MATUI RYOTARO
Abstract: A gas discharge tube comprises an envelope (11) for sealing a gas, lead pins (13-16) and a light-emitting assembly (20). The light-emitting assembly includes: a focusing electrode support member (21) of a conductive material; a hot cathode (31) for emitting thermoelectrons; an anode (24) for receiving thermoelectrons; a focusing electrode (29) for converging paths of thermoelectrons; a first spacer (50a) of an insulator being arranged between the focusing electrode support member and the anode; a second spacer (50b) of an insulator being arranged at an opposite side to the first spacer through the anode; and an anode support member (22) of a conductive material for pushing the anode onto the focusing electrode support member through the first and second spacers. A gas discharge tube having a long service life and capable of improving the operational stability during long-time continuous light emission can be provided.
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