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公开(公告)号：DE69737318T2
公开(公告)日：2007-11-29
申请号：DE69737318
申请日：1997-09-26
Applicant: HAMAMATSU PHOTONICS KK
Inventor： WARASHINA HIDENAGA
Abstract: The ultraviolet detector in accordance with the present invention comprises a sealed vessel enclosing a discharged gas therein, and a metal anode and a metal cathode which are disposed close to each other within the sealed vessel so as to generate therebetween discharge in response to ultraviolet radiation entering the sealed vessel. The anode and cathode are independently secured to the sealed vessel with a plurality (at least three pieces each) of anode pins and cathode pins, respectively. An electrically-insulating spacer is disposed between the anode and cathode so as to fix their relative positions with respect to each other, thereby defining a discharging gap, by which discharge is stably generated between these electrodes. The current resulting from the discharge is observed so as to detect the incidence of ultraviolet radiation. Since the cathode and the anode are independently fixed, they are prevented from coming into contact with each other and malfunctioning even when a shock or vibration is externally imparted to the detector.
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公开(公告)号：AU7937198A
公开(公告)日：1999-01-25
申请号：AU7937198
申请日：1998-07-03
Applicant: HAMAMATSU PHOTONICS KK
Inventor： IKEDA SHIRO , MATSUSHITA KOJI , WARASHINA HIDENAGA
IPC: H01J61/067 , H01J61/09 , H01J61/12 , H01S3/137
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公开(公告)号：DE69727184T2
公开(公告)日：2004-09-02
申请号：DE69727184
申请日：1997-09-26
Applicant: HAMAMATSU PHOTONICS KK
Inventor： WARASHINA HIDENAGA , SHIMAZU YUJI
Abstract: An ultraviolet detector comprises a metal tubular member which hermetically encloses an anode and a cathode therein and is filled with a discharged gas introduced therein from a metal exhaust tube. After the anode and the cathode are enclosed within the tubular member, the ultraviolet detector can be made without being subjected to any glass fusing process. Accordingly, the inside of the sealed vessel V1 can be prevented from being contaminated with fluorine, whereby the ultraviolet detector with stable characteristics can be provided.
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公开(公告)号：DE69727184D1
公开(公告)日：2004-02-19
申请号：DE69727184
申请日：1997-09-26
Applicant: HAMAMATSU PHOTONICS KK
Inventor： WARASHINA HIDENAGA , SHIMAZU YUJI
Abstract: An ultraviolet detector comprises a metal tubular member which hermetically encloses an anode and a cathode therein and is filled with a discharged gas introduced therein from a metal exhaust tube. After the anode and the cathode are enclosed within the tubular member, the ultraviolet detector can be made without being subjected to any glass fusing process. Accordingly, the inside of the sealed vessel V1 can be prevented from being contaminated with fluorine, whereby the ultraviolet detector with stable characteristics can be provided.
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公开(公告)号：DE69737318T9
公开(公告)日：2008-07-03
申请号：DE69737318
申请日：1997-09-26
Applicant: HAMAMATSU PHOTONICS KK
Inventor： WARASHINA HIDENAGA
Abstract: The ultraviolet detector in accordance with the present invention comprises a sealed vessel enclosing a discharged gas therein, and a metal anode and a metal cathode which are disposed close to each other within the sealed vessel so as to generate therebetween discharge in response to ultraviolet radiation entering the sealed vessel. The anode and cathode are independently secured to the sealed vessel with a plurality (at least three pieces each) of anode pins and cathode pins, respectively. An electrically-insulating spacer is disposed between the anode and cathode so as to fix their relative positions with respect to each other, thereby defining a discharging gap, by which discharge is stably generated between these electrodes. The current resulting from the discharge is observed so as to detect the incidence of ultraviolet radiation. Since the cathode and the anode are independently fixed, they are prevented from coming into contact with each other and malfunctioning even when a shock or vibration is externally imparted to the detector.
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Patent Agency Ranking
公开(公告)号：DE69737318D1
公开(公告)日：2007-03-22
申请号：DE69737318
申请日：1997-09-26
Applicant: HAMAMATSU PHOTONICS KK
Inventor： WARASHINA HIDENAGA
Abstract: The ultraviolet detector in accordance with the present invention comprises a sealed vessel enclosing a discharged gas therein, and a metal anode and a metal cathode which are disposed close to each other within the sealed vessel so as to generate therebetween discharge in response to ultraviolet radiation entering the sealed vessel. The anode and cathode are independently secured to the sealed vessel with a plurality (at least three pieces each) of anode pins and cathode pins, respectively. An electrically-insulating spacer is disposed between the anode and cathode so as to fix their relative positions with respect to each other, thereby defining a discharging gap, by which discharge is stably generated between these electrodes. The current resulting from the discharge is observed so as to detect the incidence of ultraviolet radiation. Since the cathode and the anode are independently fixed, they are prevented from coming into contact with each other and malfunctioning even when a shock or vibration is externally imparted to the detector.
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公开(公告)号：JPH11248531A
公开(公告)日：1999-09-17
申请号：JP5254898
申请日：1998-03-04
Applicant: KOBE STEEL LTD , HAMAMATSU PHOTONICS KK
Inventor： YOKOTA YOSHIHIRO , TACHIBANA TAKESHI , MIYATA KOICHI , WARASHINA HIDENAGA
Abstract: PROBLEM TO BE SOLVED: To obtain a practical sensor insusceptible to sun light, exhibiting high response, excellent in heat resistance and UV detection accuracy by providing a substrate, a UV ray detection layer of diamond film having a specified thickness grown with uniaxial orientation on the substrate by vapor phase synthesis, and at least a pair of electrodes touching the detection layer. SOLUTION: A diamond film 2 is formed on a substrate 1 and a pair of first and second electrodes 3, 4 are formed thereon. When UV-rays impinge on the surface of the diamond film 2, pairs of electron and hole are generated therein. They are detected by means of the first and second electrodes 3, 4 in order to detect UV-rays. The diamond film 2 is grown with uniaxial orientation by vapor phase synthesis and has thickness of 1-40 μm. Since the grain boundary density in the uniaxially oriented diamond film is significantly lower than that in a polycrystalline film of random orientation, electrons and holes generated upon receiving UV-rays migrate smoothly without being trapped resulting in the enhancement of UV-ray detection sensitivity.
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公开(公告)号：JPH10115548A
公开(公告)日：1998-05-06
申请号：JP27077696
申请日：1996-10-14
Applicant: HAMAMATSU PHOTONICS KK
Inventor： WARASHINA HIDENAGA , SHIMAZU TAKESHIGE
Abstract: PROBLEM TO BE SOLVED: To prevent fluorine and silica particles from entering a sealed container and improve reliability, by arranging an anode electrode and a cathode electrode at a position opposite to a window member of glass material shutting an opening part of a side tube of metallic material. SOLUTION: On opening part of a metallic side tube 3 shielding ultraviolet rays is shut by a glass window member 4 in a sealed container V1, and the other opening part is shut by a ring-shaped metallic member 5. An anode electrode 1 is positioned by an upper part of a side wall of the metallic member 5. A cathode electrode 2 is arranged to face a mesh area 1m of a recessed part of the anode electrode 1, having a lead pin 6 extended to penetrate the metallic member 5. A rare gas such as argon or the like is sealed in the sealed container V1. When a voltage is impressed between the electrodes 1 and 2 and ultraviolet rays are projected on the cathode electrode 2 through the window member, generated photoelectrons are accelerated by an electric field, resulting in an electron decay. Many secondary electrons are emitted from the cathode electrode 2. A generated discharge current is detected as a current pulse, whereby the ultraviolet rays are detected.
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公开(公告)号：JPH11354073A
公开(公告)日：1999-12-24
申请号：JP15596198
申请日：1998-06-04
Applicant: HAMAMATSU PHOTONICS KK , KOBE STEEL LTD
Inventor： WARASHINA HIDENAGA , HAYASHI KAZUYUKI , YOKOTA YOSHIHIRO , TACHIBANA TAKESHI
IPC: H01J61/073 , H01J61/54
Abstract: PROBLEM TO BE SOLVED: To provide a flash lamp the stability of light output of which is improved and also provide a trigger probe electrode for the flash lamp. SOLUTION: This trigger probe electrode 12 for a flash lamp is used to control discharge between a positive electrode and a negative electrode installed in a sealed vessel H filled with an inert gas. In this case, the electrode is constituted by providing an electrode base material 18 having a tip part 20 to be arranged between the positive electrode and the negative electrode and a diamond thin film 21, which contains diamond as the main constituent and with which the tip part 20 of the electrode base material 18 is covered. In this case, when the discharge occurs due to the application of a trigger voltage pulse with the tip part 20 arranged between the positive electrode and the negative electrode in the sealed vessel H of the flash lamp, the discharge occurs at a very limited position on the surface of the diamond thin film 21 by virtue of the high electron emission capability of the diamond.
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公开(公告)号：JPH10202218A
公开(公告)日：1998-08-04
申请号：JP566897
申请日：1997-01-16
Applicant: HAMAMATSU PHOTONICS KK
Inventor： KAWASHIMA TOSHIYUKI , WARASHINA HIDENAGA , KURITA NORIO , KATO MASAYOSHI , HIRUMA TERUO
Abstract: PROBLEM TO BE SOLVED: To provide a waste produce treating device for decomposing and gasifying organic matters and converting to substance capable of being reutilized. SOLUTION: This device is constituted so that the organic matters is thermally decomposed and gasified. In this case, this device is provided with a reaction furnace 10 consisting at least a portion of it of a transparent material, and a semiconductor laser 16 arranged at the vicinity of the reaction furnace 10, and the organic matters in the reaction furnace 10 are irradiated with laser light radiated from the semiconductor 16 via the portion of the reaction furnace 10 consisting of the transparent material.
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