JPH06310101A - Deuterium discharge tube - Google Patents
Deuterium discharge tubeInfo
- Publication number
- JPH06310101A JPH06310101A JP9350793A JP9350793A JPH06310101A JP H06310101 A JPH06310101 A JP H06310101A JP 9350793 A JP9350793 A JP 9350793A JP 9350793 A JP9350793 A JP 9350793A JP H06310101 A JPH06310101 A JP H06310101A
- Authority
- JP
- Japan
- Prior art keywords
- discharge tube
- deuterium
- small hole
- deuterium discharge
- discharge
- 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
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
(57)【要約】
【目的】簡単な構造で高輝度化の重水素放電管を提供す
る。
【構成】重水素放電管（１）内の放電路を狭窄する複数
の小穴（１１、１２）を光軸上に並べる構造とし、それ
ぞれの小穴部（１１、１２）で発生した陽光柱発光（１
３、１４）が重畳して得られる構造を有する。
【効果】簡単な構造で従来の２倍以上の高輝度が得られ
るため、本発明の重水素放電管を用いることによって、
液体クロマトグラフ及び光の吸収による分析を行う分析
装置の分析感度をより向上させる効果がある。また、放
電電流も従来と同じで点灯するもので、放電管の管壁温
度も従来と同様であり、分析装置への悪影響を及ぼすこ
ともない。
(57) [Abstract] [Purpose] To provide a deuterium discharge tube having a simple structure and high brightness. [Structure] A structure in which a plurality of small holes (11, 12) narrowing a discharge path in a deuterium discharge tube (1) are arranged on an optical axis, and a positive column light emission (11, 12) generated in each small hole (11, 12) is formed. 1
3, 14) has a structure obtained by overlapping. [Effect] With a simple structure, more than twice as high brightness as the conventional one can be obtained. Therefore, by using the deuterium discharge tube of the present invention,
This has the effect of further improving the analytical sensitivity of a liquid chromatograph and an analyzer that performs analysis by absorption of light. Further, the discharge current is the same as the conventional one, and the temperature of the discharge tube is the same as the conventional one, so that the analyzer is not adversely affected.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、分光光度計、液体クロ
マトグラフィの光検知器などの紫外域光源として用いら
れる重水素放電管に係り、特に重水素放電管の放射輝度
の向上に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deuterium discharge tube used as an ultraviolet light source such as a spectrophotometer and a photodetector for liquid chromatography, and more particularly to improving the radiance of the deuterium discharge tube.
【０００２】[0002]
【従来の技術】重水素放電管は、図４の外観図(ａ)及び
電極中心部の横断面図（ｂ）に示すように、ステム２と
溶着したバルブ１からなる密閉容器内の電極部にステム
２を介して電力を供給するための導入線６と、電極部を
囲った金属隔壁１７とで構成され、密閉容器内には、重
水素ガス又は水素ガスが数Ｔｏｒｒ封入されている。ま
た、バルブ１には光取り出し窓４が設けられ、方向５に
光を取り出す構造となっている。2. Description of the Related Art A deuterium discharge tube has an electrode portion in a hermetically sealed vessel consisting of a stem 2 and a welded valve 1 as shown in an external view (a) of FIG. 4 and a transverse sectional view (b) of the electrode center. It is composed of a lead-in wire 6 for supplying electric power via the stem 2 and a metal partition wall 17 that surrounds the electrode portion, and deuterium gas or hydrogen gas is enclosed in the sealed container for several Torr. Further, the bulb 1 is provided with a light extraction window 4 so that light is extracted in the direction 5.
【０００３】電極部には、コイル状のフィラメントから
なる陰極１８と平板状陽極１９を配置し、陰、陽極の途
中には放電を狭窄させるための小穴２０をもつ隔壁板２
１がを設けられている。金属隔壁１７は放電路制御のた
めニッケル等の金属で遮蔽する密閉構造である。上記構
造の放電管に直流電圧を印加し放電させると、放電路を
狭窄する小穴部２０で、封入するガスの重水素又は水素
が発光し、紫外域に強い連続スペクトルの光を放射す
る。従来の重水素放電管は、放電路を狭窄する小穴部２
０をモリブデンの金属板２１に窪みを付け、窪みの中心
部に小穴を設けた構造である。上記小穴２０を持つ隔壁
板２１は、電極中心部に一段で構成されている。このよ
うな重水素放電管の構成に関して記載された文献として
「日本分光学会編、光源の特性と使い方（昭和６０年３
月、学会出版センタ−）の２０頁から３０頁」がある。A partition plate 2 having a cathode 18 made of a coil-shaped filament and a flat plate-shaped anode 19 disposed in the electrode portion, and having a small hole 20 for confining discharge in the middle of the cathode and anode.
1 is provided. The metal partition wall 17 has a closed structure that is shielded by a metal such as nickel for controlling the discharge path. When a DC voltage is applied to the discharge tube having the above structure to cause discharge, deuterium or hydrogen as a gas to be enclosed emits light in the small hole portion 20 that narrows the discharge path, and emits light having a strong continuous spectrum in the ultraviolet region. The conventional deuterium discharge tube has a small hole portion 2 that narrows the discharge path.
0 is a structure in which a molybdenum metal plate 21 is provided with a recess, and a small hole is provided at the center of the recess. The partition plate 21 having the small holes 20 is formed in one step at the center of the electrode. As a document that describes the configuration of such a deuterium discharge tube, “Light Source Characteristics and Usage” (edited by The Spectroscopic Society of Japan, 1985).
Mon, Academic Publishing Center) page 20 to 30 ”.
【０００４】[0004]
【発明が解決しようとする課題】重水素放電管において
重要なことの一つは紫外線の強度を高めることである。
紫外線を高輝度化するには放電路を狭窄する小穴２０の
直径を小さくするか、または放電電流を増加することが
有効であるが、小穴の径を小さくする場合、始動電圧が
著しく高くなることから、小穴２０の径を小さくするこ
とには限界がある。一方、放電電流を増加すると、放電
管管壁温度が上昇し、重水素放電管を用いた分析装置の
温度上昇に伴う輝度の時間的変動(光のドリフト)等悪影
響を及ぼすことになる。また、放電電流を増加すること
により、放電管の寿命が著しく短寿命となる。そのため
従来の重水素放電管では、高輝度化が難しい。従って、
本発明の目的は、従来の重水素放電管と同一電流の状態
で、高輝度が得られる重水素放電管を実現することであ
る。One of the important things in the deuterium discharge tube is to increase the intensity of ultraviolet rays.
In order to increase the brightness of ultraviolet rays, it is effective to reduce the diameter of the small hole 20 that narrows the discharge path or increase the discharge current. However, when the diameter of the small hole is reduced, the starting voltage becomes extremely high. Therefore, there is a limit in reducing the diameter of the small hole 20. On the other hand, when the discharge current is increased, the wall temperature of the discharge tube rises, which adversely affects the temporal variation of brightness (drift of light) accompanying the temperature rise of the analyzer using the deuterium discharge tube. In addition, by increasing the discharge current, the life of the discharge tube becomes extremely short. Therefore, it is difficult to increase the brightness with the conventional deuterium discharge tube. Therefore,
An object of the present invention is to realize a deuterium discharge tube capable of obtaining high brightness under the same current condition as that of a conventional deuterium discharge tube.
【０００５】[0005]
【課題を解決するための手段】上記目的は、重水素又は
水素を封入した管内に、電子放射物を塗布した陰極と陽
極とを囲み、上記陰極から上記陽極に至る放電路を形成
する金属隔壁を設け、上記金属隔壁の一部に上記放電路
を狭窄するための小穴を持つ隔壁板を設けた重水素放電
管において、上記放電路を狭窄するための小穴を設けた
隔壁板を、光軸上に複数段配置した構造とし、それぞれ
の小穴部で発生した複数の重水素ガスの発光を重複して
取り出すことによって達成できる。The above object is to provide a metal partition wall which surrounds a cathode and an anode coated with an electron emission material in a tube containing deuterium or hydrogen and forms a discharge path from the cathode to the anode. And a deuterium discharge tube having a partition plate having a small hole for narrowing the discharge path in a part of the metal partition, the partition plate having a small hole for narrowing the discharge path This can be achieved by adopting a structure in which a plurality of stages are arranged on the upper part and by duplicating emission of a plurality of deuterium gas generated in each small hole portion.
【０００６】上記放電路を狭窄するための小穴を設けた
隔壁板の個数は３以上でも輝度の向上が認められるが、
輝度の改善効果と電極部の大きさの関係より２個の場合
が好ましいい。Even if the number of partition plates provided with the small holes for narrowing the discharge path is 3 or more, the brightness is improved, but
From the relationship between the effect of improving the brightness and the size of the electrode portion, it is preferable that the number is two.
【０００７】[0007]
【作用】重水素放電管の発光輝度は、放電路を狭窄する
ための小穴部に発生する陽光部の輝度に対応する。本発
明のよる重水素放電管では、放電路を狭窄するための小
穴が、光軸上、即ち光の取だし方向に複数段配置されて
おり、かつ重水素ガスの発光は、自己吸収を起こさない
ことを利用して、各小穴で発生した光を減衰無く加算で
きるので、従来の重水素放電管と同一電流の状態で、従
来の重水素放電管の輝度より高い輝度を得ることができ
る。以下の実施例に述べるように、放電路を狭窄するた
めの小穴部を２個を設けた場合、従来の２倍以上の輝度
が得られている。小穴部を３個以上設けた場合も重水素
放電管の発光輝度は個数に比例して増加する。The emission brightness of the deuterium discharge tube corresponds to the brightness of the positive part generated in the small hole for narrowing the discharge path. In the deuterium discharge tube according to the present invention, small holes for narrowing the discharge path are arranged in a plurality of stages on the optical axis, that is, in the light extraction direction, and the emission of deuterium gas causes self-absorption. Since the light generated in each small hole can be added without attenuation by utilizing the absence, it is possible to obtain higher brightness than that of the conventional deuterium discharge tube in the same current state as that of the conventional deuterium discharge tube. As will be described in the following embodiments, when two small holes for narrowing the discharge path are provided, the brightness is more than double that of the conventional one. Even when three or more small holes are provided, the emission brightness of the deuterium discharge tube increases in proportion to the number.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面を用いて説明す
る。図１は、本発明による重水素放電管の一実施例の斜
視図、図２は、図１の実施例の重水素放電管の電極部の
構成を示す横断面図である。図１に示すように、１は放
電管容器のバルブであり、ステム２と溶着によって密閉
容器を構成し、容器内には電極部３と重水素ガスが封入
してある。電極部３は、電極類を囲う金属隔壁をもち、
導入線６がステム２を介して導入され、接続されてい
る。バルブ１の光取出し位置には光取出し窓４が設けら
れている。５は光取出し方向を示す。バルブ１、光取出
し窓４及びステム２は石英ガラスを含む硬質ガラスであ
る。バルブ１内には重水素ガスが数Ｔｏｒｒ封入されて
いる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the deuterium discharge tube according to the present invention, and FIG. 2 is a cross-sectional view showing the structure of the electrode portion of the deuterium discharge tube of the embodiment of FIG. As shown in FIG. 1, reference numeral 1 denotes a bulb of a discharge tube container, which is welded to a stem 2 to form a closed container, and an electrode portion 3 and deuterium gas are enclosed in the container. The electrode part 3 has a metal partition wall surrounding the electrodes,
The lead-in wire 6 is introduced and connected via the stem 2. A light extraction window 4 is provided at the light extraction position of the bulb 1. Reference numeral 5 indicates the light extraction direction. The bulb 1, the light extraction window 4, and the stem 2 are hard glass containing quartz glass. Several torr of deuterium gas is enclosed in the valve 1.
【０００９】バルブ１の中心部には、電極部分を遮蔽す
るニッケル板からなる金属隔壁３が、陰極室と陽極室と
を分離し、金属隔壁３内部にはニッケルからなる隔壁板
７及び８を挟んで、タングステンからなる３重コイルの
フィラメントに熱電子放射物質であるＢａＯ、ＳｒＯ、
ＣａＯ等の酸化物が塗布してある陰極９及びモリブデン
からなる平板状の陽極１０とが、隔壁板７、８の放電を
狭窄させるための小穴１１、１２を挟んで対置されてい
る。At the center of the bulb 1, a metal partition wall 3 made of a nickel plate for shielding the electrode portion separates the cathode chamber and the anode chamber, and inside the metal partition wall 3, partition plates 7 and 8 made of nickel are provided. In between, a filament of a triple coil made of tungsten is filled with BaO, SrO, which is a thermionic emission material,
A cathode 9 coated with an oxide such as CaO and a flat plate-shaped anode 10 made of molybdenum are placed opposite to each other with small holes 11 and 12 for narrowing the discharge of the partition plates 7 and 8 therebetween.
【００１０】隔壁板７、８の間隔は１〜２ｍｍの隙間と
なるように並列に配置され、金属隔壁３と密閉してあ
る。隔壁板７及び８にそれぞれ設けられた小穴１１及び
１２は、モリブデンを用い、ニッケルからなる隔壁板７
及び８に溶接により固定してある。それぞれの小穴１１
及び１２の直径はいずれも１ｍｍとし、小穴１１及び１
２の周囲には窪みが設けられている。２つの小穴７及び
８は、同軸上に配置され、小穴１１の端面と小穴１２の
端面との間隔も、隔壁板７及び８と同様の隙間１ｍｍと
なるように構成されている。また、陽極室は上下に金属
のふたが設けられ、密閉状態を保つ構造となっている。
光取出し窓４は、紫外域に透過率の高い合成石英で構成
されている。The partition plates 7 and 8 are arranged in parallel so as to have a gap of 1 to 2 mm, and are sealed with the metal partition 3. The small holes 11 and 12 provided in the partition plates 7 and 8 are made of molybdenum and made of nickel.
And 8 are fixed by welding. Each small hole 11
Each of the diameters of 1 and 12 is 1 mm, and the small holes 11 and 1 are
A depression is provided around the circumference of 2. The two small holes 7 and 8 are arranged coaxially, and the gap between the end surface of the small hole 11 and the end surface of the small hole 12 is also configured to be the same gap 1 mm as that of the partition plates 7 and 8. In addition, the anode chamber is provided with metal lids on the top and bottom to maintain a hermetically sealed state.
The light extraction window 4 is made of synthetic quartz having a high transmittance in the ultraviolet region.
【００１１】上記構造の重水素放電管の陰極９であるフ
ィラメントに電流を流し、予熱を行った後、陰極９、陽
極１０間に直流電圧を印加して、重水素ガスの放電を起
こさせると、放電路を狭窄した小穴部１１及び１２でそ
れぞれ陽光柱１３及び１４が発生する。小穴部１１及び
１２で発生した陽光柱１３及び１４からは、紫外域に強
い連続スペクトルをもつ光を放射する。重水素ガスの発
光は自己吸収が起こらないことから、後方の小穴部(陽
極側)１２で発光した光が前方の小穴部１１で発光した
光を通過する際に弱められることがなく、それぞれの小
穴部１１及び１２で発光した光は重畳して得ることがで
きる。When a current is applied to the filament which is the cathode 9 of the deuterium discharge tube having the above structure to preheat it, and then a DC voltage is applied between the cathode 9 and the anode 10 to cause deuterium gas discharge. Positive columns 13 and 14 are generated in the small holes 11 and 12 that narrow the discharge path. The positive columns 13 and 14 generated in the small holes 11 and 12 emit light having a strong continuous spectrum in the ultraviolet region. Since the self-absorption of deuterium gas does not occur, the light emitted from the rear small hole portion (anode side) 12 is not weakened when passing the light emitted from the front small hole portion 11, and The light emitted from the eyelets 11 and 12 can be obtained in a superimposed manner.
【００１２】図３は、上記実施例の重水素放電管と従来
の重水素放電管の放射輝度の分光分布特性の比較を行っ
た放射輝度放射特性図である。両者共に、放電電流は３
００ｍＡとした。また、放電狭窄部の小穴は、本発明の
実施例の２つの小穴部１１及び１２の直径を従来の隔壁
板に設けた小穴の直径と同一径とした。同図において、
縦軸は相対強度、横軸は波長（ｎｍ）を表す。図の中で
１５は本発明の重水素放電管の放射輝度の分光分布を示
し、１６は従来の重水素放電管の放射輝度の分光分布を
示す。図に示すように本発明の重水素放電管の放射輝度
分光分布特性は、従来の重水素放電管に比較し、紫外域
のほぼ全波長領域域で２倍以上放射輝度をもっている。FIG. 3 is a radiant emission characteristic diagram in which the spectral distribution characteristics of the radiance of the deuterium discharge tube of the above embodiment and the conventional deuterium discharge tube are compared. Both have a discharge current of 3
It was set to 00 mA. Further, the small holes of the discharge constriction portion have the same diameter as the diameter of the two small holes 11 and 12 of the embodiment of the present invention provided in the conventional partition plate. In the figure,
The vertical axis represents relative intensity, and the horizontal axis represents wavelength (nm). In the figure, 15 shows the spectral distribution of the radiance of the deuterium discharge tube of the present invention, and 16 shows the spectral distribution of the radiance of the conventional deuterium discharge tube. As shown in the figure, the radiance spectral distribution characteristic of the deuterium discharge tube of the present invention has twice or more radiance in the almost entire wavelength range of the ultraviolet region as compared with the conventional deuterium discharge tube.
【００１３】本発明による重水素放電管の他の実施例に
ついて述べる。重水素放電管の輝度を向上させるための
手段として、放電狭窄部の小穴の直径を小さくすること
が有効である。小穴の直径と輝度の関係は、小穴の面積
に逆比例するが、放電始動電圧が上昇する欠点がある。
従って、放電始動電圧が上昇しない程度の直径の小穴を
利用し、上記の様に小穴を数段重ねる構造とすることに
より、更に高輝度とすることができる。そのため、他の
実施例として、図２と構造はほぼ同一であるが、前方
(光取り出し側)の小穴１１は始動電圧に支障のない直径
１ｍｍとし、後方(陽極側)の小穴１２を直径０.５ｍｍ
とした構造の重水素放電管とした。Another embodiment of the deuterium discharge tube according to the present invention will be described. As a means for improving the brightness of the deuterium discharge tube, it is effective to reduce the diameter of the small hole in the discharge constriction portion. The relationship between the diameter of the small hole and the brightness is inversely proportional to the area of the small hole, but there is a drawback that the discharge starting voltage rises.
Therefore, by using a small hole having a diameter that does not increase the discharge starting voltage, and by arranging a plurality of small holes as described above, it is possible to further increase the brightness. Therefore, as another embodiment, the structure is almost the same as that of FIG.
The small hole 11 on the (light extraction side) has a diameter of 1 mm that does not interfere with the starting voltage, and the small hole 12 on the rear side (anode side) has a diameter of 0.5 mm.
A deuterium discharge tube having the above structure was used.
【００１４】以上本発明の実施例について説明したが、
本発明は上記実施例に限定されるものではない。例えば
簡単な構造の重水素放電管により、従来の隔壁板に設け
た小穴の直径と同一径の小穴を有す隔壁板を３段以上光
軸上の並べることにより、従来の２倍以上の輝度得るこ
とが可能となる。また、隔壁板の小穴部に窪みを持たな
い平板状の小穴としても同様の効果を得ることができ
る。The embodiment of the present invention has been described above.
The present invention is not limited to the above embodiment. For example, by using a deuterium discharge tube with a simple structure, by arranging, on the optical axis, three or more partition plates having small holes with the same diameter as the diameter of the small holes provided in the conventional partition plate, the brightness is more than double that of the conventional one. It becomes possible to obtain. Further, the same effect can be obtained even if the small hole portion of the partition plate is a flat small hole having no depression.
【００１５】[0015]
【発明の効果】本発明の重水素放電管により、簡単な構
造で図３の放射輝度放射特性図に示す様に、従来の２倍
以上の高輝度が得られるため、本発明の重水素放電管を
用いることによって、液体クロマトグラフ及び光の吸収
による分析を行う分析装置の分析感度をより向上させる
効果がある。また、放電電流も従来と同じ３００ｍＡで
点灯するもので、放電管の管壁温度も従来と同様であ
り、分析装置への悪影響を及ぼすこともない。With the deuterium discharge tube of the present invention, as shown in the radiance characteristic diagram of FIG. 3, the deuterium discharge tube of the present invention can obtain a luminance twice or more as high as the conventional one. The use of the tube has the effect of further improving the analysis sensitivity of the liquid chromatograph and the analyzer that performs analysis by absorption of light. Further, the discharge current is 300 mA, which is the same as the conventional one, and the wall temperature of the discharge tube is the same as the conventional one, so that the analyzer is not adversely affected.
【図１】本発明による重水素放電管の一実施例の斜視図FIG. 1 is a perspective view of an embodiment of a deuterium discharge tube according to the present invention.
【図２】図１の実施例を示す重水素放電管の電極部の横
断面図2 is a cross-sectional view of an electrode portion of a deuterium discharge tube showing the embodiment of FIG.
【図３】本発明及び従来の重水素放電管の放射輝度放射
特性図FIG. 3 is a radiance emission characteristic diagram of the present invention and a conventional deuterium discharge tube.
【図４】従来の重水素放電管の外観図と電極部の横断面
図FIG. 4 is an external view of a conventional deuterium discharge tube and a cross-sectional view of an electrode part.
１…バルブ、 ２…ステム、３…金
属隔壁、 ４…光取り出し窓、５…光
取り出し方向、 ６…導入線、７、８…隔壁
板、 ９…陰極、１０…陽極、
１１、１２…小穴、１３、１４…陽光柱。DESCRIPTION OF SYMBOLS 1 ... Valve, 2 ... Stem, 3 ... Metal partition wall, 4 ... Light extraction window, 5 ... Light extraction direction, 6 ... Introducing wire, 7, 8 ... Partition plate, 9 ... Cathode, 10 ... Anode,
11, 12 ... Small holes, 13, 14 ... Sunlight columns.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福田 剛 東京都青梅市藤橋888番地 株式会社日立 製作所リビング機器事業部内 (72)発明者 村山 精一 東京都国分寺市東恋ケ窪１丁目280番地 株式会社日立製作所中央研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Go Fukuda 888 Fujibashi, Ome City, Tokyo 888 Hitachi Ltd. Living Equipment Division (72) Inventor Seiichi Murayama 1-280, Higashi Koikeku, Kokubunji, Tokyo Hitachi, Ltd. Central Research Center
Claims (4)
極と電子放射物質を塗布した陰極とを囲み、上記陰極か
ら上記陽極に至る放電路を形成する金属隔壁を設け、上
記金属隔壁の一部に上記放電路を狭窄するための小穴を
設けた重水素放電管において、上記金属隔壁の一部に放
電路を狭窄するための小穴を有す隔壁板を光軸上に複数
個設けたことを特徴とする重水素放電管。1. A metal partition wall, which encloses an anode and a cathode coated with an electron-emitting substance and which forms a discharge path from the cathode to the anode, is provided in a tube filled with deuterium or hydrogen gas. In a deuterium discharge tube having a small hole for narrowing the discharge path in a part thereof, a plurality of partition plates having small holes for narrowing the discharge path in a part of the metal partition wall are provided on the optical axis. A deuterium discharge tube characterized by the above.
記小穴を有す隔壁板を２個とすることことを特徴とする
重水素放電管。2. The deuterium discharge tube according to claim 1, wherein the number of partition plates having the small holes is two.
記陽極に近い方の隔壁板の小穴の径を上記陽極に遠い方
の隔壁板の小穴の径より小さくしたことを特徴とする重
水素放電管。3. The heavy hydrogen discharge tube according to claim 2, wherein the diameter of the small hole of the partition plate closer to the anode is smaller than the diameter of the small hole of the partition plate far from the anode. Hydrogen discharge tube.
て、上記２個の隔壁板の光軸方向の間隔を１ないし２ｍ
ｍとしたことを特徴とする重水素放電管。4. The deuterium discharge tube according to claim 2 or 3, wherein the interval between the two partition plates in the optical axis direction is 1 to 2 m.
A deuterium discharge tube characterized by having m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9350793A JPH06310101A (en) | 1993-04-21 | 1993-04-21 | Deuterium discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9350793A JPH06310101A (en) | 1993-04-21 | 1993-04-21 | Deuterium discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06310101A true JPH06310101A (en) | 1994-11-04 |
Family
ID=14084268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9350793A Pending JPH06310101A (en) | 1993-04-21 | 1993-04-21 | Deuterium discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06310101A (en) |
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|---|---|---|---|---|
| US5886470A (en) * | 1996-07-18 | 1999-03-23 | Heraeus Noblelight Gmbh | Discharge lamp which has a fill of at least one of deuterium, hydrogen, mercury, a metal halide, or a noble gas |
| WO2000034981A1 (en) * | 1998-12-09 | 2000-06-15 | Hamamatsu Photonics K.K. | Gas discharge tube and optical device |
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-
1993
- 1993-04-21 JP JP9350793A patent/JPH06310101A/en active Pending
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| US5886470A (en) * | 1996-07-18 | 1999-03-23 | Heraeus Noblelight Gmbh | Discharge lamp which has a fill of at least one of deuterium, hydrogen, mercury, a metal halide, or a noble gas |
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