JP3014925B2 - Discharge lamp - Google Patents
Discharge lampInfo
- Publication number
- JP3014925B2 JP3014925B2 JP6168697A JP16869794A JP3014925B2 JP 3014925 B2 JP3014925 B2 JP 3014925B2 JP 6168697 A JP6168697 A JP 6168697A JP 16869794 A JP16869794 A JP 16869794A JP 3014925 B2 JP3014925 B2 JP 3014925B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- glass
- cylinder
- sealing
- sealing portion
- 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 - Fee Related
Links
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Discharge Lamp (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は放電ランプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp.
【０００２】[0002]
【従来の技術】キセノンガスなどを内部に高圧で封入
し、電極を支持するリード棒が封止部を貫通してなる石
英製バルブを有する放電ランプでは、封止部に膨張率の
異なる数種類のガラスを接続して金属とガラスを接合し
ている。この方法は一般的に段継ぎガラスシール法とよ
ばれて大電流型の放電ランプに使われている。しかし、
この段継ぎシール法は異種のガラスをつなぎ合わせるた
め加工技術が難しく、また不良の発生率が高くなる。2. Description of the Related Art In a discharge lamp having a quartz bulb in which xenon gas or the like is sealed at a high pressure inside and a lead rod for supporting an electrode penetrates a sealing portion, several kinds of different expansion coefficients are provided in the sealing portion. Glass is connected to join metal and glass. This method is generally called a step glass sealing method and is used for a large current type discharge lamp. But,
This step-sealing method involves joining different kinds of glass, so that the processing technique is difficult, and the occurrence rate of defects increases.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記欠点を
解消するためになされたものであって、その目的とする
ところは、封止部を改善することによって品質の向上を
実現した放電ランプを提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to improve the quality of a discharge lamp by improving a sealing portion. Is to provide.
【０００４】[0004]
【課題を解決するための手段】本発明の目的は、バルブ
と、このバルブの両側に枝管部を有し、該枝管部の両側
に封止部が形成され、該バルブ内に陽極と陰極が対向配
置され、該両電極を支持するリード棒が該封止部を貫通
してなる放電ランプにおいて、該封止部を高融点金属の
有底シリンダーで造り、該有底シリンダーの外側面がナ
イフエッジ側から１／３以上がガラスにおおわれるよう
にすることによって達成される。SUMMARY OF THE INVENTION It is an object of the present invention to provide a valve having a branch portion on both sides of the valve, sealing portions formed on both sides of the branch portion, and an anode and a valve inside the valve. In a discharge lamp in which a cathode is disposed to face and a lead rod supporting both electrodes penetrates the sealing portion, the sealing portion is made of a bottomed cylinder made of a high melting point metal, and an outer surface of the bottomed cylinder Is achieved by covering at least 1/3 from the knife edge side with glass.
【０００５】[0005]
【作用】有底シリンダーが外側からガラスで補強、保護
されているので、耐圧性が向上する。[Function] Since the bottomed cylinder is reinforced and protected with glass from the outside, the pressure resistance is improved.
【０００６】[0006]
【実施例】以下に図面を参照して本発明の実施例を説明
する。図１は従来の放電ランプの説明図である。図２は
高融点金属でできた有底シリンダー封止部を有する放電
ランプの説明図、図３はその要部の詳細図である。図に
おいて、１はバルブ、２はバルブに連なる枝管部でその
両端部に封止部９がある。この封止部９を形成する有底
シリンダーを貫通してリード棒３があり、その他端には
それぞれ陽極４、陰極５が接続されている。８は該リー
ド棒３が貫通している高融点金属板の支持部材で、１０
は該支持部材８を固定している高融点金属コイルであ
る。１１はろう材であって、リード棒３と有底シリンダ
ーとを気密にろう接している。１２はシリンダーの側面
４をおおっている石英ガラスである。有底シリンダーは
ハウスキーパーシールのため、端面Ｐがナイフエッジ状
に研磨されており、底部Ｑに行くに従って厚くなってい
る。従って、シリンダーの側面の強度は弱く、かつ放電
ランプ内は高圧のため側面が破壊されることがある。そ
のため、シリンダーの側面をおおっている石英ガラス１
２をシリンダー底部までとすることによって封止部の強
度が増すことができ、今まで低圧の放電ランプのみに使
用されてきたこの封止方法が高圧ランプまで使用できる
ようになった。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram of a conventional discharge lamp. FIG. 2 is an explanatory view of a discharge lamp having a bottomed cylinder sealing portion made of a high melting point metal, and FIG. 3 is a detailed view of a main part thereof. In the figure, 1 is a valve, 2 is a branch pipe part connected to the valve, and there are sealing parts 9 at both ends. The lead bar 3 extends through the bottomed cylinder forming the sealing portion 9, and the other end is connected to the anode 4 and the cathode 5, respectively. Reference numeral 8 denotes a supporting member for the high melting point metal plate through which the lead rod 3 passes.
Is a high melting point metal coil to which the support member 8 is fixed. Reference numeral 11 denotes a brazing material, which airtightly brazes the lead rod 3 and the bottomed cylinder. 12 is a quartz glass covering the side surface 4 of the cylinder. Since the bottomed cylinder is a housekeeper seal, the end face P is polished in a knife-edge shape, and becomes thicker toward the bottom Q. Therefore, the strength of the side surface of the cylinder is weak, and the side surface may be broken due to high pressure in the discharge lamp. Therefore, the quartz glass 1 covering the side of the cylinder
By setting 2 to the bottom of the cylinder, the strength of the sealing portion can be increased, and this sealing method, which has been used only for low-pressure discharge lamps, can now be used for high-pressure lamps.
【０００７】以下に実験結果を示す。実験は、次の４種
類のサンプル各１０本ずつおこなった。有底シリンダー
の外径は１２ｍｍで高さは２５ｍｍである。 ａ）従来の段継ぎガラスによる封止部（図１参照） ｂ）シリンダー側面のナイフエッジ側１／３までのガラ
スを密着させた。つまり、ガラスをかぶせる距離Ｌを、
シリンダーの高さの１／３程度とする。 ｃ）シリンダー側面のナイフエッジ側半分までガラスを
密着させた。つまり、Ｌを高さの１／２程度とする。 ｄ）シリンダー側面全面までガラスを密着させた。 ｅ）シリンダー側面の１／３までガラスを密着させ残り
の部分はガラスが接触する程度にした。 ｆ）シリンダー側面の半分までガラスを密着させ残りの
部分はガラスが接触する程度にした。[0007] The experimental results are shown below. The experiment was performed for each of the following four types of ten samples. The outer diameter of the bottomed cylinder is 12 mm and the height is 25 mm. a) Sealed portion using conventional stepped glass (see FIG. 1) b) Glass was brought into close contact with up to 1/3 of the knife side on the side of the cylinder. In other words, the distance L over which the glass is covered is
It is about 1/3 of the height of the cylinder. c) The glass was brought into close contact with half of the knife edge on the side of the cylinder. That is, L is set to about 1/2 of the height. d) The glass was adhered to the entire side surface of the cylinder. e) The glass was brought into close contact with one-third of the side of the cylinder, and the remaining portion was brought into contact with the glass. f) The glass was brought into close contact with half of the side surface of the cylinder, and the remaining portion was brought into contact with the glass.
【０００８】サンプル内部に窒素ガスを徐々に加圧して
いき、サンプルが破壊する圧力を測定した。各サンプル
１０本の平均値はａ）が１００ｋｇ／ｃｍ2 、ｂ）が３
０ｋｇ／ｃｍ2 、ｃ）が４０ｋｇ／ｃｍ2 、ｄ）が６０
ｋｇ／ｃｍ2 、ｅ）が５０ｋｇ／ｃｍ2 、ｆ）が９０ｋ
ｇ／ｃｍ2 であった。キセノン放電ランプの場合で点灯
中の圧力は約３０ｋｇ／ｃｍ2 であり、十分使用可能で
ある。[0008] Nitrogen gas was gradually pressurized inside the sample, and the pressure at which the sample was broken was measured. The average value of 10 samples was 100 kg / cm 2 for a) and 3 for b).
0 kg / cm 2 , c) is 40 kg / cm 2 , d) is 60
kg / cm 2 , e) 50 kg / cm 2 , f) 90 k
g / cm 2 . In the case of a xenon discharge lamp, the pressure during operation is about 30 kg / cm 2, which is sufficient for use.
【０００９】[0009]
【発明の効果】以上の説明から明らかなように、本発明
によれば高圧の放電ランプに使用することができ、品質
の良い安価な放電ランプができる。As is apparent from the above description, according to the present invention, a high-quality and inexpensive discharge lamp can be used for a high-pressure discharge lamp.
【図１】従来の放電ランプの説明図である。FIG. 1 is an explanatory diagram of a conventional discharge lamp.
【図２】本発明の放電ランプの実施例の説明図である。FIG. 2 is an explanatory view of an embodiment of the discharge lamp of the present invention.
【図３】本発明の放電ランプの要部の説明図である。FIG. 3 is an explanatory diagram of a main part of the discharge lamp of the present invention.
２ 枝管部 ３ リード棒 １１ ろう材 2 Branch pipe part 3 Lead rod 11 Brazing material
Claims (1)
有し、該枝管部の両側に封止部が形成され、該バルブ内
に陽極と陰極が対向配置され、該両電極を支持するリー
ド棒が該封止部を貫通してなる放電ランプにおいて、該
封止部が高融点金属の有底シリンダーでできており、該
有底シリンダーの外側面がナイフエッジ側から１／３以
上がガラスにおおわれていることを特徴とする放電ラン
プ。1. A bulb having a branch portion on both sides of the bulb, sealing portions are formed on both sides of the branch portion, and an anode and a cathode are arranged in the bulb so as to face each other. In a discharge lamp in which a supporting lead rod penetrates through the sealing portion, the sealing portion is made of a bottomed cylinder made of a refractory metal, and the outer surface of the bottomed cylinder is 1/3 from the knife edge side. The above is a discharge lamp characterized by being covered with glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6168697A JP3014925B2 (en) | 1994-06-29 | 1994-06-29 | Discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6168697A JP3014925B2 (en) | 1994-06-29 | 1994-06-29 | Discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0817394A JPH0817394A (en) | 1996-01-19 |
| JP3014925B2 true JP3014925B2 (en) | 2000-02-28 |
Family
ID=15872791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6168697A Expired - Fee Related JP3014925B2 (en) | 1994-06-29 | 1994-06-29 | Discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3014925B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4739973B2 (en) * | 2006-02-14 | 2011-08-03 | スタンレー電気株式会社 | High pressure discharge lamp |
-
1994
- 1994-06-29 JP JP6168697A patent/JP3014925B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0817394A (en) | 1996-01-19 |
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