JPS603484Y2 - Cathode for cold cathode discharge tube - Google Patents
Cathode for cold cathode discharge tubeInfo
- Publication number
- JPS603484Y2 JPS603484Y2 JP1976020320U JP2032076U JPS603484Y2 JP S603484 Y2 JPS603484 Y2 JP S603484Y2 JP 1976020320 U JP1976020320 U JP 1976020320U JP 2032076 U JP2032076 U JP 2032076U JP S603484 Y2 JPS603484 Y2 JP S603484Y2
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- support plate
- getter material
- attached
- 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.)
- Expired
Links
Landscapes
- Discharge Lamp (AREA)
- Gas-Filled Discharge Tubes (AREA)
Description
【考案の詳細な説明】
本考案は、冷陰極放電管、特に陽極及び陰極の他に、外
部に起動電極を有する閃光放電管の陰極に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cold cathode discharge lamp, in particular to a cathode of a flash discharge lamp, which has an external starting electrode in addition to an anode and a cathode.
この種放電管は硬質ガラス又は溶融石英等で管状に形成
されたガラス管の両端に陽極及び陰極を有するとともに
管壁に起動電極を有し、起動電極に高電圧を印加するこ
とにより、陽極及び陰極間に放電を行わせ、閃光を得る
ものである。This type of discharge tube has an anode and a cathode at both ends of a glass tube formed into a tubular shape of hard glass or fused silica, etc., and has a starting electrode on the tube wall. By applying a high voltage to the starting electrode, the anode and the cathode are A flash of light is produced by causing a discharge between the cathodes.
而して、従来の陰極は管端に貫通して取り付けられる電
極導入線としてタングステン棒を用い、これにゲッタ材
を様々な方法によって取り付けている。Conventional cathodes use a tungsten rod as an electrode lead-in wire that is attached to the end of the tube, and a getter material is attached to the rod by various methods.
この従来のゲッタ材を取り付けた陰極の例を示せば、第
１図及び第２図図示の通りである。An example of a cathode to which this conventional getter material is attached is shown in FIGS. 1 and 2.
第１図は、帯状に形成されたニッケル金属をＵ字形に曲
げ、その両端をタングステン棒２の先端に固定し、ニッ
ケル金属１とタングステン棒２とによって形成される空
間にゲッタ材３の小片を押し込んで保持さしたものであ
る。In Figure 1, a nickel metal strip is bent into a U shape, both ends of which are fixed to the tip of a tungsten rod 2, and a small piece of getter material 3 is inserted into the space formed by the nickel metal 1 and the tungsten rod 2. It is held in place by pushing it in.
この構造は簡単であるため、小電力放電管には好適であ
るが、電力の増加を共にニッケル金属１が溶けるととも
に、ゲッタ材２の飛散も著しくなり使用しえなくなる。Since this structure is simple, it is suitable for a low-power discharge tube, but as the power increases, the nickel metal 1 melts and the getter material 2 scatters significantly, making it unusable.
３ＱＷｓｅｃ程度のものが限度とされている。第２図は
、大電力用のものであり、タングステン棒２の側面に帯
状のニッケル金属１でゲッタ材３を取り付けたものであ
る。The limit is about 3QWsec. FIG. 2 shows a device for high power use, in which a getter material 3 is attached to the side surface of a tungsten rod 2 using a band-shaped nickel metal 1.
タングステン棒２の先端が露出しているので、イオン衝
撃はタングステン棒３の先端で起り大電力にも耐えるこ
とができる。Since the tip of the tungsten rod 2 is exposed, ion bombardment occurs at the tip of the tungsten rod 3, and it can withstand large electric power.
しかし、いずれにしても、帯状のニッケル金属によって
ゲッタ材を保持しているだけであるので、ゲッタ材の脱
落を生じ易く、イオン衝撃による温度上昇によりニッケ
ル金属の溶接部がとれる事故もある。However, in any case, since the getter material is simply held by the band-shaped nickel metal, the getter material is likely to fall off, and there is also an accident in which the welded part of the nickel metal comes off due to temperature rise due to ion bombardment.
また、ニッケル金属１でゲッタ材３を保持させつつタン
グステン棒２に取り付ける作業も煩雑である。Further, the work of holding the getter material 3 with the nickel metal 1 and attaching it to the tungsten rod 2 is also complicated.
特に、放電管を大形化し、ゲッタ材３を複数個取り付け
なければならないときは陰極の製造に多大の時間を要し
、経済性に劣る欠点を有している。In particular, when the discharge tube is enlarged and a plurality of getter materials 3 must be attached, it takes a lot of time to manufacture the cathode, which is disadvantageous in terms of economic efficiency.
本考案は以上の欠点を除くためになされたもので、大電
力の放電に耐え、且つ放電中にゲッタ材の脱落等の事故
がなく、しかも組立容易な構造の陰極を得ることを目的
とするものである。The present invention was devised to eliminate the above-mentioned drawbacks, and aims to provide a cathode that can withstand high-power discharge, is free from accidents such as the getter material falling off during discharge, and has a structure that is easy to assemble. It is something.
上記目的を遠戚する本考案は、金属からなる帯状に形成
された支持板の一表面にゲッタ材を取り付け、ゲッタ材
を取り付けた面を内側にしてＵ字形に折り曲げ、その中
央部に電極棒を貫通させて構成させたものである。The present invention, which is distantly related to the above object, attaches a getter material to one surface of a support plate formed in the shape of a metal band, bends it into a U-shape with the surface on which the getter material is attached inside, and places an electrode in the center of the support plate. It is constructed by penetrating it.
支持板としてはニッケル、モリブデン等加工が容易でか
つ高融点を有し、放電によるスパッタリングの少ない材
料がよい。As the support plate, it is preferable to use a material such as nickel or molybdenum that is easy to process, has a high melting point, and is less prone to sputtering due to electric discharge.
一枚の板状のものを用いてもよいが、こまかい目を有す
るものであってもよい。A single plate-like material may be used, but a material having fine mesh may also be used.
支持板に取り付けるゲッタ材は一個に限るものでなく、
必要に応じて複数個取り付けることが可能である。The number of getter materials attached to the support plate is not limited to one,
It is possible to attach multiple pieces as needed.
電極棒としては従来同様タングステン棒を用いるのが望
ましい。As the electrode rod, it is preferable to use a tungsten rod as in the past.
図示の実施例について説明すれば、１１がモリブデンの
板を帯状に形成させた支持板であり、その−表面に２個
のゲッタ材１３．１３が取り付けである。To explain the illustrated embodiment, numeral 11 is a support plate made of a molybdenum plate formed into a band shape, and two getter materials 13 and 13 are attached to the surface thereof.
ゲッタ材１３としては支持板１１に確実に固定され、か
つ高温低温ともに優れたガス吸着性を有するチタニウム
を用いている。As the getter material 13, titanium is used, which is securely fixed to the support plate 11 and has excellent gas adsorption properties at both high and low temperatures.
その他タンタラム、ジルコニウム、トリウム及びそれら
の合金も用いることが可能である。Other materials such as tantalum, zirconium, thorium, and alloys thereof can also be used.
さらに、不活性ガス中で溶接すれば、フラッシュゲッタ
を用いることも可能である。Furthermore, if welding is performed in an inert gas, it is also possible to use a flash getter.
支持板１１の中央部には小孔１４が設けてあり、第３図
に示すように、ゲッタ材１３を取り付けた面を内側にし
て折り曲げ、小孔１４に電極棒１２を、その先端が０・
５〜２ｒｒａｎ程度突出させて貫通させ、スポット溶接
によって支持板１１を電極棒１２に固定するためのもの
である。A small hole 14 is provided in the center of the support plate 11, and as shown in FIG.・
The support plate 11 is made to protrude by about 5 to 2 rran and penetrate through the hole, and is used to fix the support plate 11 to the electrode rod 12 by spot welding.
スポット溶接は電極棒１２の先端から最も離れた位置で
行うのが望ましい。It is desirable to perform spot welding at a position farthest from the tip of the electrode rod 12.
斯る構成であるため、製造方法としては、予めゲッタ材
１３．１３を支持板１１に取り付けておき電極棒１２を
貫通させて支持板１１を電極棒１２に溶接するだけでよ
いので、極めて簡単となる。Due to this configuration, the manufacturing method is extremely simple, as it is only necessary to attach the getter material 13.13 to the support plate 11 in advance, pass the electrode rod 12 through it, and weld the support plate 11 to the electrode rod 12. becomes.
ゲッタ材１３を多くしても、ゲッタ材１３は平板状のも
のに溶接するで、何ら煩わしいことがない。Even if the number of getter materials 13 is increased, there is no problem because the getter materials 13 are welded to a flat plate.
またイオン衝撃は電極棒１２の先端で起るので大電力の
ものに対しても充分使用することができる。Furthermore, since the ion bombardment occurs at the tip of the electrode rod 12, it can be used satisfactorily even for high-power applications.
一部支持板１１のＵ字形の先端にもイオン衝撃があるが
、その部分を溶接箇所とする必要がないので、支持板１
１が電極棒１２から外れる。There is also an ion bombardment at the U-shaped tip of the support plate 11, but since there is no need to use that part as a welding point, the support plate 1
1 comes off from the electrode rod 12.
すなわち、ゲッタ材１３が脱落するという事故を一切な
くすことができる。In other words, it is possible to eliminate any accidents in which the getter material 13 falls off.
第１図、第２図は従来の陰極の構造に係るもので、第３
図は本考案実施例の斜視図、第４図は本考案の支持板の
例の平面図である。
１１：支持板、１２：電極棒、１３ニゲツタ材、１４：
小孔。Figures 1 and 2 are related to the structure of a conventional cathode.
The figure is a perspective view of an embodiment of the present invention, and FIG. 4 is a plan view of an example of the support plate of the present invention. 11: Support plate, 12: Electrode rod, 13 Nigeta wood, 14:
Small hole.
Claims (1)
られたゲッタ材及び電極導入線としての電極棒とからな
り、電極棒に支持板をゲッタ材が取り付けられた面を内
側にして略Ｕ字形に形成された中央部を貫通させて取り
付けた冷陰極放電管用陰極。It consists of a support plate formed in a band shape, a getter material attached to one surface of the support plate, and an electrode rod as an electrode lead-in wire, and the support plate is attached to the electrode rod with the surface on which the getter material is attached inside. A cathode for cold cathode discharge tubes that is installed by penetrating the U-shaped central part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976020320U JPS603484Y2 (en) | 1976-02-23 | 1976-02-23 | Cathode for cold cathode discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976020320U JPS603484Y2 (en) | 1976-02-23 | 1976-02-23 | Cathode for cold cathode discharge tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52111557U JPS52111557U (en) | 1977-08-24 |
| JPS603484Y2 true JPS603484Y2 (en) | 1985-01-31 |
Family
ID=28480343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1976020320U Expired JPS603484Y2 (en) | 1976-02-23 | 1976-02-23 | Cathode for cold cathode discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603484Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4650562B2 (en) * | 2008-12-03 | 2011-03-16 | ウシオ電機株式会社 | Short arc type discharge lamp |
| JP4678059B2 (en) * | 2009-03-02 | 2011-04-27 | ウシオ電機株式会社 | Short arc type discharge lamp |
| JP6120182B2 (en) * | 2015-01-08 | 2017-04-26 | ウシオ電機株式会社 | Both ends sealed short arc flash lamp |
-
1976
- 1976-02-23 JP JP1976020320U patent/JPS603484Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52111557U (en) | 1977-08-24 |
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