JPH04370642A - Heavy hydrogen discharge tube - Google Patents
Heavy hydrogen discharge tubeInfo
- Publication number
- JPH04370642A JPH04370642A JP14712691A JP14712691A JPH04370642A JP H04370642 A JPH04370642 A JP H04370642A JP 14712691 A JP14712691 A JP 14712691A JP 14712691 A JP14712691 A JP 14712691A JP H04370642 A JPH04370642 A JP H04370642A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- cathode
- electron emitting
- emitting material
- 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.)
- Pending
Links
- UFHFLCQGNIYNRP-VVKOMZTBSA-N Dideuterium Chemical compound [2H][2H] UFHFLCQGNIYNRP-VVKOMZTBSA-N 0.000 title abstract 2
- 238000004804 winding Methods 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 41
- 229910052805 deuterium Inorganic materials 0.000 claims description 28
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 8
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 claims description 8
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 7
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 7
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- -1 Hydrogen molecule ions Chemical class 0.000 description 6
- 229910052788 barium Inorganic materials 0.000 description 6
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052712 strontium Inorganic materials 0.000 description 4
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910021523 barium zirconate Inorganic materials 0.000 description 1
- DQBAOWPVHRWLJC-UHFFFAOYSA-N barium(2+);dioxido(oxo)zirconium Chemical compound [Ba+2].[O-][Zr]([O-])=O DQBAOWPVHRWLJC-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、液体クロマトグラフ等
の紫外線光源として用いられる重水素あるいは水素を封
入した重水素放電灯に係り、特にその陰極の改良に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deuterium discharge lamp filled with deuterium or hydrogen, which is used as an ultraviolet light source for liquid chromatographs, etc., and particularly to improvement of its cathode.
【０００２】0002
【従来の技術】重水素放電管の陰極は、特開昭５４−５
８９７７ 号に記載のように、タングステン二重コイル
にバリウム等の酸化物を被覆させた構造になっている。[Prior art] The cathode of a deuterium discharge tube is
As described in No. 8977, it has a structure in which a tungsten double coil is coated with an oxide such as barium.
【０００３】0003
【発明が解決しようとする課題】上記従来の重水素放電
管においては、陰極に塗布された電子放射物質の損耗が
大きく、寿命が短いという欠点が有った。また、従来の
二重コイル陰極においては、光出力の安定性が十分では
ないという欠点があった。SUMMARY OF THE INVENTION The conventional deuterium discharge tube described above has the drawback that the electron emitting material coated on the cathode is subject to significant wear and tear, resulting in a short lifespan. Further, the conventional double-coil cathode has the disadvantage that the stability of the optical output is not sufficient.
【０００４】本発明の目的は、長寿命で、かつ光出力が
安定である重水素放電管を提供することである。An object of the present invention is to provide a deuterium discharge tube that has a long life and stable light output.
【０００５】[0005]
【課題を解決するための手段】上記目的は、少なくとも
金属線を巻まわして一次コイルを形成し、前記一次コイ
ルを巻きまわして二次コイルを形成した二重コイルを使
用し、円筒状の電子放射物質を形成するために、隣接す
る一次コイルの間を埋めるように電子放射物質を被着さ
せたことを特徴とする陰極を少なくとも使用することに
よって達成される。[Means for Solving the Problems] The above object is to use a double coil in which at least a metal wire is wound to form a primary coil, and the primary coil is wound to form a secondary coil, and a cylindrical electronic This is achieved by using at least a cathode characterized in that an electron-emitting material is deposited to form the emissive material between adjacent primary coils.
【０００６】また、少なくとも金属線を巻まわして一次
コイルを形成し、前記一次コイルを巻きまわして二次コ
イルを形成した二重コイルにおいて、概略円柱状の電子
放射物質を形成するために概略二重コイル全体に電子放
射物質を被着させたことを特徴とする陰極を少なくとも
使用することによって達成される。[0006] Furthermore, in a double coil in which a primary coil is formed by winding at least a metal wire, and a secondary coil is formed by winding the primary coil, approximately two coils are used to form an approximately cylindrical electron emitting material. This is achieved by using at least a cathode characterized in that the entire heavy coil is coated with an electron-emitting material.
【０００７】さらに、前記電子放射物質を酸化バリウム
，酸化ストロンチウム，酸化カルシウムの中から選ばれ
た少なくとも一種と、酸化ジルコニウム，酸化スカンジ
ウムの中から選ばれた少なくとも一種との混合物にする
事によって、上記目的はより一層達成できる。[0007] Furthermore, by making the electron emitting substance a mixture of at least one selected from barium oxide, strontium oxide, and calcium oxide and at least one selected from zirconium oxide and scandium oxide, the above-mentioned Goals are more achievable.
【０００８】[0008]
【作用】重水素放電管は、直流で点灯される。従って、
陰極を構成するタングステン線と電子放射物質に、水素
分子イオン，水素原子イオンが陰極降下電圧に相当する
エネルギーで流入する。陰極降下電圧は十数ボルトと高
いので、重水素分子イオン，重水素原子イオンは高エネ
ルギーを有する。従って、電子放射物質上に流入した重
水素分子イオン，重水素原子イオンは電子放射物質であ
る酸化バリウム，酸化ストロンチウム，酸化カルシウム
等の酸化物を還元し、金属状のバリウム，ストロンチウ
ム，カルシウムを生成する。金属状のバリウム，ストロ
ンチウム，カルシウムの蒸気圧はその酸化物に比較し数
桁高いので、蒸発量が著しく増大し、電子放射物質の損
耗が増大し、その結果寿命が短くなる。すなわち、重水
素放電管の寿命が短い理由は、還元性の重水素ガス中で
直流放電を行なう事であると推測される。[Operation] A deuterium discharge tube is lit with direct current. Therefore,
Hydrogen molecule ions and hydrogen atomic ions flow into the tungsten wire and electron emitting material that make up the cathode with energy corresponding to the cathode drop voltage. Since the cathode drop voltage is as high as ten or more volts, deuterium molecular ions and deuterium atom ions have high energy. Therefore, the deuterium molecular ions and deuterium atom ions that flow onto the electron emitting material reduce the oxides such as barium oxide, strontium oxide, and calcium oxide, which are the electron emitting materials, and produce metallic barium, strontium, and calcium. do. Since the vapor pressure of metallic barium, strontium, and calcium is several orders of magnitude higher than that of their oxides, the amount of evaporation increases significantly, leading to increased wear and tear on the electron-emitting material, resulting in a shortened lifetime. That is, it is presumed that the reason for the short lifespan of deuterium discharge tubes is that DC discharge is performed in reducing deuterium gas.
【０００９】少なくとも金属線を巻まわして一次コイル
を形成し、前記一次コイルを巻きまわして二次コイルを
形成した二重コイルを使用し、円筒状の電子放射物質を
形成するために隣接する一次コイルの間を埋めるように
電子放射物質を被着させたことを特徴とする陰極を用い
ると、コイルにだけ電子放射物質を塗布した場合よりも
電子放射物質の量が多くなり、且つ、一次コイル間を埋
めるように塗布された電子放射物質には重水素のイオン
が流入しにくいのでその損耗が少なく、従って、長寿命
が得られる。A double coil is used in which at least a metal wire is wound to form a primary coil, and the primary coil is wound to form a secondary coil, and adjacent primary coils are used to form a cylindrical electron emitting material. If a cathode is used in which an electron emitting material is coated so as to fill the space between the coils, the amount of electron emitting material will be larger than when the electron emitting material is applied only to the coil, and Since deuterium ions are less likely to flow into the electron emitting material applied to fill the gaps, there is little wear and tear, and therefore a long life can be achieved.
【００１０】また、少なくとも金属線を巻まわして一次
コイルを形成し、前記一次コイルを巻きまわして二次コ
イルを形成した二重コイルにおいて、概略円柱状の電子
放射物質を形成するために概略二重コイル全体に電子放
射物質を被着させたことを特徴とする陰極を用いると、
コイルにだけ電子放射物質を塗布した場合よりも電子放
射物質の量が多くなり、長寿命が得られる。[0010] Furthermore, in a double coil in which a primary coil is formed by winding at least a metal wire, and a secondary coil is formed by winding the primary coil, approximately two coils are formed in order to form an approximately cylindrical electron emitting material. When using a cathode characterized by coating the entire heavy coil with an electron emitting material,
The amount of electron emitting material is greater than when applying electron emitting material only to the coil, resulting in a longer life.
【００１１】従来の二重コイル型陰極における陰極輝点
は、二次コイル半ターン程度に渡って形成されており、
陰極輝点部分の電子放射物質の消耗に従って順次移動し
ている。しかし、陰極輝点部分に隣接する二次コイルを
形成する一次コイルも高温度になるので、陰極輝点が移
動する際に放電電流の一部は隣接する二次コイルにも分
流する現象が生じ、放電が揺らぎ、これが光出力の不安
定の一つの原因になっていた。しかし、本発明のように
、少なくとも金属線を巻まわして一次コイルを形成し、
前記一次コイルを巻きまわして二次コイルを形成した二
重コイルを使用し、円筒状の電子放射物質を形成するた
めに隣接する一次コイルの間を埋めるように電子放射物
質を被着させたことを特徴とする陰極、あるいは概略円
柱状の電子放射物質を形成するために概略前記二重コイ
ル全体に電子放射物質を被着させたことを特徴とする陰
極を用いると、コイルにだけ電子放射物質を塗布した場
合と異なり電子放射物質が空間的に連続的に存在するの
で、陰極輝点の移動が連続的にスムースに起こるので、
放電の揺らぎが生じにくく、従って光出力が安定化する
。The cathode bright spot in the conventional double coil cathode is formed over about half a turn of the secondary coil.
They move sequentially as the electron emitting material in the cathode bright spot is consumed. However, because the temperature of the primary coil that forms the secondary coil adjacent to the cathode bright spot also becomes high, when the cathode bright spot moves, a part of the discharge current is shunted to the adjacent secondary coil. , the discharge fluctuated, which was one of the causes of instability in the light output. However, as in the present invention, at least a metal wire is wound to form a primary coil,
A double coil formed by winding the primary coil to form a secondary coil is used, and an electron emitting material is deposited so as to fill the space between adjacent primary coils to form a cylindrical electron emitting material. When using a cathode characterized by the following characteristics, or a cathode characterized by having an electron emitting material coated on approximately the entire double coil to form an approximately cylindrical electron emitting material, the electron emitting material is applied only to the coil. Unlike the case where the electron emitting material is applied spatially, the cathode bright spot moves continuously and smoothly.
Fluctuations in discharge are less likely to occur, and therefore optical output is stabilized.
【００１２】酸化ジルコニウム，酸化スカンジウムは、
高温度において、酸素の欠陥を介して電気伝導を有する
様になる事が知られている。前記電子放射物質を酸化バ
リウム，酸化ストロンチウム，酸化カルシウムの中から
選ばれた少なくとも一種と、酸化ジルコニウム，酸化ス
カンジウムの中から選ばれた少なくとも一種との混合物
にすると、重水素という還元性のガス中であるので酸化
ジルコニウム，酸化スカンジウムの高温度における電気
伝導率上昇の割合が良くなるので、陰極輝点部分の面積
が広くなって放電が安定し、陰極降下電圧も低下するの
で、安定で高効率の重水素放電管が得られる。Zirconium oxide and scandium oxide are
It is known that at high temperatures, it becomes electrically conductive through oxygen defects. When the electron emitting substance is a mixture of at least one selected from barium oxide, strontium oxide, and calcium oxide and at least one selected from zirconium oxide and scandium oxide, it Therefore, the rate of increase in electrical conductivity of zirconium oxide and scandium oxide at high temperatures is improved, so the area of the cathode bright spot becomes wider, stabilizing the discharge, and the cathode drop voltage decreases, resulting in stable and high efficiency. A deuterium discharge tube is obtained.
【００１３】[0013]
【実施例】図１は、本発明の一実施例である重水素放電
管の横断面図である。紫外線透過窓５を有する放電容器
６内に陰極１，陽極２および遮蔽囲い４が設けられてお
り、重水素ガスが封入されている。遮蔽囲い４は、陰極
１と陽極２をそれぞれ取り巻くような構造をしており、
陽極２と紫外線透過窓５との間の隔壁には放電を狭窄す
るための小孔３が設けられている。陰極を囲んでいる隔
壁にもスリット７が設けられている。従って、放電は、
陰極１からスリット７，小孔３を経て、陽極２の間で発
生する。小孔３による狭窄放電によって発生した紫外線
は、紫外線透過窓５から取り出される。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a cross-sectional view of a deuterium discharge tube which is an embodiment of the present invention. A cathode 1, an anode 2, and a shielding enclosure 4 are provided in a discharge vessel 6 having an ultraviolet-transmitting window 5, and deuterium gas is sealed therein. The shielding enclosure 4 has a structure that surrounds the cathode 1 and the anode 2, respectively.
A small hole 3 is provided in the partition wall between the anode 2 and the ultraviolet-transmitting window 5 to constrict the discharge. A slit 7 is also provided in the partition wall surrounding the cathode. Therefore, the discharge is
It is generated between the cathode 1, the slit 7, the small hole 3, and the anode 2. The ultraviolet rays generated by the constricted discharge caused by the small holes 3 are extracted through the ultraviolet transmitting window 5.
【００１４】本発明の重水素ランプに使用した二重コイ
ルは従来のものと同等であり、図２に示したように、金
属線２０を巻きまわして一次コイル２３を形成し、さら
に前記の一次コイル２３を巻まわして二次コイル２４を
形成したものである。The double coil used in the deuterium lamp of the present invention is the same as the conventional one, and as shown in FIG. 2, a metal wire 20 is wound around to form a primary coil 23, and the A secondary coil 24 is formed by winding the coil 23.
【００１５】従来の陰極においては、図３に示したよう
に上記二重コイルの一次コイル２３にバリウム，ストロ
ンチウム，カルシウムの酸化物を主成分とした電子放射
物質３１を充填被着させる構造であり、隣接する一次コ
イルの間３０は電子放射物質の存在しない空間であった
。なお、従来の重水素放電管や蛍光ランプなどの放電管
の陰極の世界においては、二重コイルを形成する隣接す
る一次コイルの間３０の一部であっても、それらの間を
つなぐように電子放射物質が被着された陰極は、不良と
されて排除されていた。In the conventional cathode, as shown in FIG. 3, the primary coil 23 of the double coil is filled with an electron emitting material 31 mainly composed of oxides of barium, strontium, and calcium. , the space 30 between adjacent primary coils was a space in which no electron emitting material existed. In addition, in the world of cathodes of discharge tubes such as conventional deuterium discharge tubes and fluorescent lamps, even if it is a part of the space between adjacent primary coils forming a double coil, it is necessary to connect them. Cathodes coated with electron-emitting materials were considered defective and were rejected.
【００１６】本発明においては、図４に示したように電
子放射物質３１は二重コイルを形成する隣接する一次コ
イルの間３０を埋めるように被着される。したがって、
電子放射物質３１の塗布量が増大し、長寿命が得られる
。In the present invention, as shown in FIG. 4, an electron emitting material 31 is deposited to fill the space 30 between adjacent primary coils forming a double coil. therefore,
The amount of electron emitting material 31 applied increases, resulting in a longer life.
【００１７】金属線として直径０．０８ｍｍのタングス
テン線を用い、直径０．２ｍｍ，１ｍｍあたりの巻き数
６．７ の一次コイル２３を形成し、さらにこの一次コ
イル２３を巻まわし直径１．２ｍｍ，長さ７ｍｍ，巻数
７回の二重コイル２４を形成した。Using a tungsten wire with a diameter of 0.08 mm as the metal wire, a primary coil 23 with a diameter of 0.2 mm and a number of turns of 6.7 per 1 mm is formed, and this primary coil 23 is further wound to a diameter of 1.2 mm. A double coil 24 having a length of 7 mm and 7 turns was formed.
【００１８】バリウム，ストロンチウム，カルシウムの
モル比が４０：３５：２５である複合炭酸塩に、酸化ジ
ルコニウムを重量で５％混合したものを上記複合二重コ
イルに塗布し、これを加熱分解して複合酸化物を生成さ
せて電子放射物質３１を形成し、陰極１として使用した
。小孔３の直径を１ｍｍにし、重水素を８Ｔｏｒｒ封入
した。A composite carbonate containing barium, strontium, and calcium in a molar ratio of 40:35:25 mixed with 5% by weight of zirconium oxide is applied to the composite double coil, which is then thermally decomposed. A composite oxide was generated to form an electron emitting material 31, which was used as the cathode 1. The diameter of the small hole 3 was set to 1 mm, and deuterium was sealed at 8 Torr.
【００１９】上記本発明の重水素放電管において、上記
二重コイルに３．０Ｖ の電圧を印加して加熱しながら
放電電流３００ｍＡで放電した。その結果、電子放射物
質３１が空間的にほぼ連続的に存在するので陰極輝点の
揺らぎが小さくなり、光出力の安定性が従来に比較し３
０％向上し、且つ、寿命は従来の二重コイルの約１．５
倍である重水素放電管を得ることが出来た。In the deuterium discharge tube of the present invention, a voltage of 3.0 V was applied to the double coil to heat it while discharging at a discharge current of 300 mA. As a result, since the electron emitting material 31 exists spatially almost continuously, the fluctuation of the cathode bright spot is reduced, and the stability of the light output is improved by 3.
0% improvement, and the lifespan is approximately 1.5 times longer than that of conventional double coils.
We were able to obtain a deuterium discharge tube that was twice as large.
【００２０】上記の実施例においては、酸化ジルコニウ
ムを使用したが、バリウムジルコネート，バリウムスカ
ンデートを用いても同様の効果が得られる。Although zirconium oxide was used in the above embodiments, similar effects can be obtained by using barium zirconate or barium scandate.
【００２１】本発明の別の実施例を図５に示す。この実
施例は、二重コイル２４において、概略二重コイル２４
全体に電子放射物質３１を被着させる、すなわち、二重
コイル２４の中心部３３も電子放射物質３１を充填した
陰極を使用したことを特徴とする。図５から自明なよう
に、電子放射物質３１が空間的にほぼ連続的に存在する
ので陰極輝点の揺らぎが小さくなり、光出力の安定性が
向上し、かつ電子放射物質３１の量は十分に多くなり、
長寿命が得られる。Another embodiment of the invention is shown in FIG. In this embodiment, in the double coil 24, approximately the double coil 24
It is characterized in that the electron emitting material 31 is entirely coated, that is, the central portion 33 of the double coil 24 also uses a cathode filled with the electron emitting material 31. As is obvious from FIG. 5, since the electron emitting material 31 exists spatially almost continuously, the fluctuation of the cathode bright spot is reduced, the stability of the light output is improved, and the amount of the electron emitting material 31 is sufficient. The number of
Long lifespan can be obtained.
【００２２】図１に示したように、重水素放電管におい
ては、陰極は狭い空間に閉じ込められているので、陰極
の位置がわずかに変化しただけでも放電特性が変化し、
ランプ特性がばらつくという欠点が有った。二重コイル
において、隣接する一次コイルの間を埋めるように電子
放射物質を塗布した陰極にすると、陰極全体が剛性を有
するようになり、陰極位置の制御が正確になり、ばらつ
きの少ない重水素放電管が得られ、且つ、振動などによ
る電子放射物質の脱落が少なくなり長寿命の重水素ラン
プが得られるという利点が生じる。As shown in FIG. 1, in a deuterium discharge tube, the cathode is confined in a narrow space, so even a slight change in the position of the cathode changes the discharge characteristics.
The drawback was that the lamp characteristics varied. In a double coil, if the cathode is coated with an electron-emitting material to fill the space between adjacent primary coils, the entire cathode will have rigidity, allowing for accurate control of the cathode position and deuterium discharge with less variation. There are advantages that a tube can be obtained, and that the electron emitting material is less likely to fall off due to vibrations, etc., and a long-life deuterium lamp can be obtained.
【００２３】[0023]
【発明の効果】本発明によれば、寿命が長く、かつ、光
出力が安定である重水素放電管が得られる。According to the present invention, a deuterium discharge tube having a long life and stable light output can be obtained.
【図１】図１は本発明の一実施例の横断面図である。FIG. 1 is a cross-sectional view of one embodiment of the present invention.
【図２】図２は本発明の実施例の陰極コイルの部分断面
図である。FIG. 2 is a partial cross-sectional view of a cathode coil according to an embodiment of the present invention.
【図３】図３は従来の陰極の部分断面図である。FIG. 3 is a partial cross-sectional view of a conventional cathode.
【図４】図４は本発明の実施例の陰極の部分断面図であ
る。FIG. 4 is a partial cross-sectional view of a cathode according to an embodiment of the present invention.
【図５】図５は本発明の実施例の陰極の部分断面図であ
る。FIG. 5 is a partial cross-sectional view of a cathode according to an embodiment of the present invention.
１…陰極、２…陽極、３…小孔、４…遮蔽囲い、２０…
金属線、２３…一次コイル、２４…二次コイル、３０…
隣接する一次コイルの間、３１…電子放射物質、３３…
二次コイルの中心部。1...Cathode, 2...Anode, 3...Small hole, 4...Shielding enclosure, 20...
Metal wire, 23...Primary coil, 24...Secondary coil, 30...
Between adjacent primary coils, 31...electron emitting material, 33...
The center of the secondary coil.
Claims (3)
を形成し、前記一次コイルを巻きまわして二次コイルを
形成した二重コイルにおいて、二重コイルを形成する隣
接する一次コイルの間を埋めるように電子放射物質を被
着させたことを特徴とする陰極を少なくとも有すること
を特徴とした重水素放電管。Claim 1: In a double coil in which a primary coil is formed by winding at least a metal wire, and a secondary coil is formed by winding the primary coil, spaces between adjacent primary coils forming the double coil are filled. 1. A deuterium discharge tube comprising at least a cathode coated with an electron-emitting material.
を形成し、前記一次コイルを巻きまわして二次コイルを
形成した二重コイルにおいて、概略二重コイル全体に電
子放射物質を被着させたことを特徴とする陰極を少なく
とも有することを特徴とした重水素放電管。Claim 2: In a double coil in which a primary coil is formed by winding at least a metal wire, and a secondary coil is formed by winding the primary coil, an electron emitting substance is coated over approximately the entire double coil. A deuterium discharge tube comprising at least a cathode characterized by:
トロンチウム，酸化カルシウムの中から選ばれた少なく
とも一種と、酸化ジルコニウム，酸化スカンジウムの中
から選ばれた少なくとも一種との混合物であることを特
徴とした請求項１もしくは請求項２に記載の重水素放電
管。3. The electron emitting material is a mixture of at least one selected from barium oxide, strontium oxide, and calcium oxide and at least one selected from zirconium oxide and scandium oxide. The deuterium discharge tube according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14712691A JPH04370642A (en) | 1991-06-19 | 1991-06-19 | Heavy hydrogen discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14712691A JPH04370642A (en) | 1991-06-19 | 1991-06-19 | Heavy hydrogen discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04370642A true JPH04370642A (en) | 1992-12-24 |
Family
ID=15423140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14712691A Pending JPH04370642A (en) | 1991-06-19 | 1991-06-19 | Heavy hydrogen discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04370642A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002049070A1 (en) * | 2000-12-13 | 2002-06-20 | Hamamatsu Photonics K.K. | Indirectly heated electrode for gas discharge tube, gas discharge tube with this, and its operating device |
| WO2002049072A1 (en) * | 2000-12-13 | 2002-06-20 | Hamamatsu Photonics K.K. | Directly heated electrode for gas discharge tube |
-
1991
- 1991-06-19 JP JP14712691A patent/JPH04370642A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002049070A1 (en) * | 2000-12-13 | 2002-06-20 | Hamamatsu Photonics K.K. | Indirectly heated electrode for gas discharge tube, gas discharge tube with this, and its operating device |
| WO2002049072A1 (en) * | 2000-12-13 | 2002-06-20 | Hamamatsu Photonics K.K. | Directly heated electrode for gas discharge tube |
| US7193367B2 (en) | 2000-12-13 | 2007-03-20 | Hamamatsu Photonics K.K. | Indirectly heated electrode for gas discharge tube, gas discharge tube with this, and its operating device |
| US7429826B2 (en) | 2000-12-13 | 2008-09-30 | Hamamatsu Photonics K.K. | Indirectly heated electrode for gas discharge tube, gas discharge tube using said indirectly heated electrode, and lighting device for said gas discharge tube |
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