WO2006022144A1 - ガス放電管 - Google Patents
ガス放電管 Download PDFInfo
- Publication number
- WO2006022144A1 WO2006022144A1 PCT/JP2005/014674 JP2005014674W WO2006022144A1 WO 2006022144 A1 WO2006022144 A1 WO 2006022144A1 JP 2005014674 W JP2005014674 W JP 2005014674W WO 2006022144 A1 WO2006022144 A1 WO 2006022144A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cathode
- anode
- discharge path
- cover
- discharge tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/68—Lamps in which the main discharge is between parts of a current-carrying guide, e.g. halo lamp
Definitions
- the present invention relates to a gas discharge tube, and more particularly to a gas discharge tube such as a deuterium lamp used as a light source for a spectroscope, chromatography, or the like.
- a gas discharge tube is known that includes a cathode part that generates a gas, and a conductive discharge path limiting part that is disposed between the anode part and the cathode part and narrows the discharge path.
- the cathode portion is configured by applying a thermionic emission material to a coil (filament coil) that functions as a heater. Is done.
- Patent Document 1 Japanese Patent Laid-Open No. 7-288106
- Patent Document 2 JP 2002-151008 A
- the present invention has been made to solve such a problem, and it is an object of the present invention to provide a gas discharge tube that can reduce the power consumption of the power source and can be reduced in size. To do.
- a gas discharge tube includes a sealed container in which a gas is sealed, an anode part disposed in the sealed container, and a space apart from the anode part in the sealed container.
- a gas discharge tube comprising: a cathode part that generates a discharge therebetween; and a conductive discharge path limiting part that is disposed between the anode part and the cathode part and narrows a discharge path formed therebetween.
- a ceramic cathode cover that surrounds the portion and has an opening at least on the electron emission side.
- the cathode part is made of ceramics having excellent heat retention properties and is surrounded by the cathode part cover having an opening at least on the electron emission side.
- the heat retention effect of the cathode part is enhanced, the temperature of the cathode part can be easily maintained, and the power consumption can be reduced.
- the cathode part cover specifically includes a configuration in which the opening force is formed in a slit shape and includes a ceramic slit plate part integrated with the cathode part cover. .
- the entire cathode cover is made of ceramics and has the minimum necessary opening, so that the heat retaining effect of the cathode can be further enhanced and the power consumption can be further reduced.
- the cathode part cover covers the cathode part so as to be able to emit electrons, and at the same time, covers the assembly having the anode part and the discharge path limiting part so as to be able to discharge between the anode part and the cathode part. If they are formed integrally with each other, a member for eliminating the unnecessary exposure of the discharge path limiting portion and increasing the discharge efficiency is unnecessary, and the number of parts is reduced.
- the discharge path limiting portion is sandwiched between a portion of the cathode cover covering the assembly and a discharge path limiting portion fixing plate made of ceramics and provided with an opening through which the discharge path passes. If it is determined, the discharge path limiting portion can be easily fixed with a small number of parts.
- a gas discharge tube includes a sealed container in which a gas is sealed, an anode part disposed in the sealed container, and an anode part spaced apart from the anode part in the sealed container.
- a gas discharge tube comprising: a cathode portion that generates a discharge between the anode portion; and a conductive discharge path limiting portion that is disposed between the anode portion and the cathode portion and narrows a discharge path formed between the two.
- a cathode part cover that surrounds the cathode part and has an opening at least on the electron emission side, and a ceramic slit plate part that forms a slit-like opening together with the opening of the cathode part, !
- the cathode part has an opening provided at least on the electron emission side of the cathode part in a slit shape, and has a cathode cover having a ceramic slit plate part. Therefore, the cathode part cover enhances the heat retention effect of the cathode part, facilitates maintaining the temperature of the cathode part, and reduces power consumption.
- the power consumption of the power source can be reduced, and the gas discharge tube including the power source can be downsized.
- FIG. 1 is a longitudinal sectional view showing a gas discharge tube according to a first embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the light emitting unit assembly in FIG. 1.
- FIG. 3 is a longitudinal sectional view showing a gas discharge tube according to another embodiment of the present invention.
- FIG. 4 is a longitudinal sectional view showing a gas discharge tube according to still another embodiment of the present invention. Explanation of symbols
- FIG. 1 is a longitudinal sectional view showing a gas discharge tube according to an embodiment of the present invention
- FIG. 2 is an exploded perspective view of the light emitting section assembly in FIG.
- the gas discharge tube 100 is a so-called head-on type deuterium lamp, and is used as a light source for a spectroscope, chromatography, or the like.
- the gas discharge tube 100 includes a glass sealed container 1 and a light emitting section assembly 2 accommodated in the sealed container 1.
- the sealed container 1 includes a cylindrical side tube portion la, a stem portion lb that seals the lower end side of the side tube portion la, and a light exit window lc that seals the upper end side.
- deuterium gas is sealed at a pressure of about several hundred Pa.
- the stem portion lb is formed with a plurality of (nine in this embodiment) openings along a predetermined circumference, and conductive stem pins 9a, 9b to 9i (see FIG. 2) pass through the openings, respectively. Being sealed and fixed.
- the light emitting part assembly 2 accommodated in the sealed container 1 is for generating ultraviolet rays.
- the base part 3, the anode part 4, and the discharge are arranged in order of the lower force.
- a path limiter fixing plate 5, a discharge path limiter 6 and a cathode part 7 are provided, and a cathode part cover 8 covering these is provided.
- the base portion 3 is made of an electrically insulating ceramic force and is formed in a disc shape.
- a plurality of openings are formed in the base portion 3 along the periphery, and the stem pins 9a to 9i are respectively passed through the openings.
- a shallow concave portion 3a having a shape corresponding to the shape of the anode portion 4 is formed on the upper surface of the base portion 3 so as to accommodate and arrange the anode portion 4.
- the anode part 4 is a conductive thin plate, and has a main body part 4a having a substantially disk shape, and a pair of extending parts 4b extending horizontally in two radial directions from two peripheral edges of the main body part 4a. 4c, and is accommodated in the recess 3a of the base portion 3 so that the upper surface thereof is flush with the upper surface of the base portion 3, as shown in FIG.
- the anode part 4 has openings 4d and 4e in the extended parts 4b and 4c, respectively, and stem pins 9c and 9d are passed through the openings 4d and 4e, respectively. Electrically connected to the department! RU
- the discharge path limiting portion fixing plate 5 is formed in a substantially fan shape due to ceramic force, and is placed so as to overlap the substantially central portions of the base portion 3 and the anode portion 4.
- the discharge path restriction portion fixing plate 5 is provided with an opening 5x at the substantially center thereof for exposing the main body portion 4a of the anode portion 4 through which the discharge path formed between the anode portion 4 and the cathode portion 7 passes. It has been.
- the discharge path restriction portion 6 On the upper surface of the discharge path restriction portion fixing plate 5 including the opening 5x on the narrow side (right side in the figure), the discharge path restriction portion 6 should be accommodated and disposed, and a shallow concave portion corresponding to the shape of the discharge path restriction portion 6 5a is formed, and a convex portion 5b for standing the cathode portion 7 is provided on the upper surface of the wide side (left side in the figure).
- An opening 5c is provided at a position on the narrow side of the recess 5a of the discharge path limiting portion fixing plate 5, and a stem pin 9e is passed through the opening 5c.
- a pair of openings 5d and 5e are provided in the convex portion 5b of the discharge path limiting portion fixing plate 5, and stem pins 9a and 9b are respectively passed through the openings 5d and 5e.
- the discharge path limiting portion 6 is a conductive thin plate, and includes a main body portion 6a having a substantially disk shape, and an extending portion 6b extending horizontally in the radial direction from the periphery of the main body portion 6a.
- the upper surface of the discharge path limiting portion fixing plate 5 is accommodated in the concave portion 5a of the discharge path limiting portion fixing plate 5 so as to be flush with the upper surface of the discharge path limiting portion fixing plate 5.
- the discharge path restricting portion 6 has an opening 6c in the extended portion 6b, and a stem pin 9e is passed through the opening 6c and electrically connected to the tip! RU
- the discharge path limiting portion 6 is provided with a recess 6d for forming an arc ball at a position coaxial with the opening 5x of the discharge path limiting portion fixing plate 5.
- the recess 6d accommodates the arc ball produced by the discharge and is formed in a cup shape that is widened toward the light exit window lc in order to efficiently extract light.
- the bottom surface of the recess 6d of the discharge path limiting portion 6 is provided with a discharge path constriction opening 6e having a small diameter of about 0.5 mm, which makes it possible to create a flat ball-shaped arc ball in the recess 6d. It has become.
- the cathode portion 7 is configured by applying a thermoelectron emitting material, such as barium oxide, to a coil (filament coil) functioning as a heater. As shown in FIG. 2, the cathode portion 7 has both end force of the coil, the opening 5d of the convex portion 5b of the discharge path limiting portion fixing plate 5, It is erected by passing through 5e and is electrically connected to stem pins 9a and 9b passed through the openings 5d and 5e.
- a thermoelectron emitting material such as barium oxide
- the cathode portion cover 8 has a cylindrical shape, an anode side cover portion 8a that covers an assembly such as the anode portion 4 and the discharge path limiting portion 6, and the anode side.
- the upper part of the cover part 8a on the cathode part 7 side is connected so as to communicate with the space in the anode side cover part 8a and protrudes upward.
- the cathode side cover 8b of the cathode cover 8 has a slit 8d for emitting electrons in the slit plate part 8c on the axial center side (electron emission side of the cathode part 7) of the discharge path constriction opening 6e.
- the anode side cover 8a is provided with an opening 8e for passing the discharge path at a position coaxial with the opening 5x of the discharge path limiting portion fixing plate 5 and the discharge path narrowing opening 6e of the discharge path limiting portion 6. It has.
- the opening 8e is set to a size that eliminates unnecessary exposure of the discharge path limiting portion 6 in order to increase discharge efficiency. Further, as shown in FIG.
- the anode side cover portion 8a has openings 8f to 8i, respectively, and the openings 8f to 8i are positioned outside the anode portion 4 and the discharge path limiting portion fixing plate 5 and located upward. Extending! /, The remaining stem pins 9f-9i are passed through, and their tips are connected and fixed. As a result, the cathode cover 8 is fixed, and the anode section 4, the discharge path limiting section fixing plate 5 and the discharge path limiting section 6 are sandwiched between the cathode section cover 8 and the base section 3. It is fixed.
- a predetermined voltage for example, a voltage of about 350 V is applied between the discharge path limiting unit 6 and the anode unit 4 from the trigger external power source (not shown) via the stem pins 9e, 9c, 9d.
- a predetermined voltage for example, a voltage of about 350 V is applied between the discharge path limiting unit 6 and the anode unit 4 from the trigger external power source (not shown) via the stem pins 9e, 9c, 9d.
- the ultraviolet rays extracted from the arc ball are transmitted to the outside through the light exit window lc as extremely bright light.
- the cathode side cover 8b prevents spatter or evaporate from the cathode 7 from adhering to the light exit window lc.
- the cathode portion 7 is made of ceramics having excellent heat retaining properties, and only the electron emission slit 8d is provided as a minimum necessary opening. Since the cathode cover 8b is surrounded by the cathode cover 8, the heat retention effect of the cathode 7 is remarkably enhanced by the cathode cover 8b. For this reason, the temperature of the cathode part 7 can be easily maintained, and the power consumption is reduced. As a result, the gas discharge tube 100 including the power source is downsized.
- the cathode cover 8 is a set in which the cathode side cover 8b covers the cathode 7 so that electrons can be emitted, and the anode side cover 8a includes the anode 4 and the discharge path limiting unit 6. Since it is integrally formed of ceramics so as to cover the three-dimensional object in a dischargeable manner, a member for eliminating the unnecessary exposure of the discharge path limiting portion 6 and increasing the discharge efficiency (the anode side cover portion of this embodiment) A separate member corresponding to the upper part of 8a is unnecessary. For this reason, the number of parts is reduced and the cost is reduced.
- the discharge path limiting portion 6 is a discharge path limiting portion provided with an upper wall portion of the anode side cover portion 8a that covers the assembly of the cathode portion cover 8, and an opening 5x through which the discharge path passes. Since it is sandwiched and fixed between the fixing plate 5, the discharge path limiting portion 6 can be easily fixed with a small number of parts, thereby further reducing the cost.
- the present invention has been specifically described above based on the embodiment.
- the present invention is not limited to the above embodiment.
- the cathode side cover portion of the cathode portion cover 8 is provided.
- the force heat insulation effect provided with slits 8d as openings only in the slit plate part 8c constituting the cathode side cover 8b is somewhat reduced compared to the above embodiment,
- Other openings may be provided in the upper wall portion of the cathode side covering portion 8b, the portion of the peripheral wall portion opposite to the slit 8d, the side portion of the peripheral wall portion, or the like.
- the slit plate portion 8c may be a full opening.
- a cathode portion cover 28 which surrounds the cathode portion 7 and has an opening on at least the electron emission side (other openings may be provided besides the electron emission side).
- the cathode side cover portion 28b of the part cover 28 has a slit plate portion 8c made of ceramics and provided with slits 8d for emitting electrons on the electron emission side of the cathode portion 7, and other portions are provided.
- the separate member 28f made of metal or the like may be used and the slit plate portion 8c may be joined. That is, only the slit plate portion 8c of the cathode side covering portion 28b may be made of ceramics. Even if configured in this manner, the heat retention effect can be obtained, which is lower than that of the above-described embodiment but enhanced as compared with the prior art.
- the gas discharge tube according to the present invention is suitable as a configuration of a deuterium lamp or the like used as a light source for a spectroscope or chromatography.
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/660,961 US7781975B2 (en) | 2004-08-24 | 2005-08-10 | Gas discharge tube having cathode cover made of ceramics |
| DE112005001775.3T DE112005001775B4 (de) | 2004-08-24 | 2005-08-10 | Gasentladungsröhre mit leitfähigem Teil zur Verengung des Entladungswegs und einer keramischen Abdeckung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-244283 | 2004-08-24 | ||
| JP2004244283A JP4907852B2 (ja) | 2004-08-24 | 2004-08-24 | ガス放電管 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006022144A1 true WO2006022144A1 (ja) | 2006-03-02 |
Family
ID=35967361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/014674 Ceased WO2006022144A1 (ja) | 2004-08-24 | 2005-08-10 | ガス放電管 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7781975B2 (ja) |
| JP (1) | JP4907852B2 (ja) |
| CN (1) | CN100580867C (ja) |
| DE (1) | DE112005001775B4 (ja) |
| WO (1) | WO2006022144A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112008001832T5 (de) | 2007-07-13 | 2010-06-17 | Hamamatsu Photonics K.K., Hamamatsu | Steuervorrichtung für eine Entladungslampe und Lichtquellenvorrichtung |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008062410A1 (de) * | 2008-12-17 | 2010-07-01 | Heraeus Noblelight Gmbh | Kathodenabschirmung bei Deuteriumlampen |
| US10269530B1 (en) * | 2017-11-29 | 2019-04-23 | Taiwan Semiconductor Manufacturing Co., Ltd. | Ion beam source for semiconductor ion implantation |
| CN113451105A (zh) * | 2021-06-01 | 2021-09-28 | 巨民生 | 一种气体放电管及其封装装置 |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4824284U (ja) * | 1971-07-28 | 1973-03-20 | ||
| JPS4840990B1 (ja) * | 1967-08-25 | 1973-12-04 | ||
| JPH04255662A (ja) * | 1991-02-08 | 1992-09-10 | Hitachi Ltd | 重水素放電管 |
| JPH05217550A (ja) * | 1992-02-03 | 1993-08-27 | Hitachi Ltd | 重水素放電管 |
| JPH08222185A (ja) * | 1995-02-17 | 1996-08-30 | Hamamatsu Photonics Kk | ガス放電管 |
| JPH08222186A (ja) * | 1995-02-17 | 1996-08-30 | Hamamatsu Photonics Kk | ガス放電管 |
| JPH08236081A (ja) * | 1995-03-01 | 1996-09-13 | Hamamatsu Photonics Kk | ガス放電管 |
| JPH11260316A (ja) * | 1998-01-21 | 1999-09-24 | Imaging & Sensing Technol Corp | 小型重水素ア―クランプ |
| JP2000315417A (ja) * | 1999-04-28 | 2000-11-14 | Hamamatsu Photonics Kk | ポータブル型光源装置 |
| JP2000315418A (ja) * | 1999-04-28 | 2000-11-14 | Hamamatsu Photonics Kk | ポータブル型光源装置 |
| JP2000315419A (ja) * | 1999-04-28 | 2000-11-14 | Hamamatsu Photonics Kk | ポータブル型光源装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1563032A1 (de) | 1966-12-03 | 1970-04-02 | Siemens Ag | Zweischichtige Mehrphasen-,insbesondere Drehstromwicklung,fuer elektrische Maschinen |
| JPS4840990A (ja) | 1971-10-04 | 1973-06-15 | ||
| JPH07288106A (ja) | 1994-04-18 | 1995-10-31 | Hitachi Ltd | 重水素放電管 |
| US5684363A (en) * | 1995-02-17 | 1997-11-04 | Hamamatsu Photonics K.K. | Deuterium gas discharge tube |
| AU1429402A (en) * | 2000-11-15 | 2002-05-27 | Hamamatsu Photonics Kk | Gas discharge tube |
| JP4964360B2 (ja) * | 2000-11-15 | 2012-06-27 | 浜松ホトニクス株式会社 | ガス放電管 |
| JP4907760B2 (ja) | 2000-11-15 | 2012-04-04 | 浜松ホトニクス株式会社 | ガス放電管 |
| JP4255662B2 (ja) | 2002-08-27 | 2009-04-15 | Thk株式会社 | ねじ研削盤 |
-
2004
- 2004-08-24 JP JP2004244283A patent/JP4907852B2/ja not_active Expired - Lifetime
-
2005
- 2005-08-10 US US11/660,961 patent/US7781975B2/en not_active Expired - Fee Related
- 2005-08-10 WO PCT/JP2005/014674 patent/WO2006022144A1/ja not_active Ceased
- 2005-08-10 DE DE112005001775.3T patent/DE112005001775B4/de not_active Expired - Lifetime
- 2005-08-10 CN CN200580024260A patent/CN100580867C/zh not_active Expired - Lifetime
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840990B1 (ja) * | 1967-08-25 | 1973-12-04 | ||
| JPS4824284U (ja) * | 1971-07-28 | 1973-03-20 | ||
| JPH04255662A (ja) * | 1991-02-08 | 1992-09-10 | Hitachi Ltd | 重水素放電管 |
| JPH05217550A (ja) * | 1992-02-03 | 1993-08-27 | Hitachi Ltd | 重水素放電管 |
| JPH08222185A (ja) * | 1995-02-17 | 1996-08-30 | Hamamatsu Photonics Kk | ガス放電管 |
| JPH08222186A (ja) * | 1995-02-17 | 1996-08-30 | Hamamatsu Photonics Kk | ガス放電管 |
| JPH08236081A (ja) * | 1995-03-01 | 1996-09-13 | Hamamatsu Photonics Kk | ガス放電管 |
| JPH11260316A (ja) * | 1998-01-21 | 1999-09-24 | Imaging & Sensing Technol Corp | 小型重水素ア―クランプ |
| JP2000315417A (ja) * | 1999-04-28 | 2000-11-14 | Hamamatsu Photonics Kk | ポータブル型光源装置 |
| JP2000315418A (ja) * | 1999-04-28 | 2000-11-14 | Hamamatsu Photonics Kk | ポータブル型光源装置 |
| JP2000315419A (ja) * | 1999-04-28 | 2000-11-14 | Hamamatsu Photonics Kk | ポータブル型光源装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112008001832T5 (de) | 2007-07-13 | 2010-06-17 | Hamamatsu Photonics K.K., Hamamatsu | Steuervorrichtung für eine Entladungslampe und Lichtquellenvorrichtung |
| US8193740B2 (en) | 2007-07-13 | 2012-06-05 | Hamamatsu Photonics K.K. | Controller for discharge lamp and light source device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4907852B2 (ja) | 2012-04-04 |
| CN1989589A (zh) | 2007-06-27 |
| US20070257618A1 (en) | 2007-11-08 |
| DE112005001775B4 (de) | 2016-08-04 |
| DE112005001775T5 (de) | 2007-07-05 |
| US7781975B2 (en) | 2010-08-24 |
| JP2006066101A (ja) | 2006-03-09 |
| CN100580867C (zh) | 2010-01-13 |
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