JP3127724B2 - High pressure discharge lamp - Google Patents
High pressure discharge lampInfo
- Publication number
- JP3127724B2 JP3127724B2 JP06168700A JP16870094A JP3127724B2 JP 3127724 B2 JP3127724 B2 JP 3127724B2 JP 06168700 A JP06168700 A JP 06168700A JP 16870094 A JP16870094 A JP 16870094A JP 3127724 B2 JP3127724 B2 JP 3127724B2
- Authority
- JP
- Japan
- Prior art keywords
- branch pipe
- lead rod
- discharge lamp
- high pressure
- joint
- 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
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明はキセノンガスなどを内部
に高圧で封入した大電流型の高圧放電ランプに関する。BACKGROUND OF THE INVENTION This invention is internal and xenon gas
The present invention relates to a high-current high-pressure discharge lamp sealed at a high pressure .
【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、封止部と発光部の
石英を接合している。例えば、図１では熱膨張率の違う
数種のガラスを段階的に接続した段継ぎガラス部７と、
発光部の枝管部２を接合部６の所で接合している。この
構造では、リード棒３の多くの部分は空気にさらされて
おり、接合部６の接合作業時の加熱によりリード棒３が
酸化しても問題とはならない。しかし、図２に示すよう
な高融点金属の有底円筒部材８を有する放電ランプで
は、発光部のバルブ１と枝管部２を接合する接合部１１
が図２に示すような位置にくるため、接合作業時にラン
プ内部に保護ガスを流していても、接合部のガラスが完
全になじむまで加熱するとリード棒３は酸化してしま
う。ランプ内の部品が酸化するとランプの寿命、点灯
性、アークの安定性に問題が生ずる。また接合部１１の
加熱が少ないとランプ内部の高圧に耐えられず、接合部
１１のガラスが破損してしまう。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 and a lead rod for supporting an electrode penetrates a sealing portion, the sealing portion and the quartz of the light emitting portion are joined. are doing. For example, in FIG. 1, a stepped glass portion 7 in which several types of glasses having different coefficients of thermal expansion are connected stepwise,
The branch pipe section 2 of the light emitting section is joined at the joint section 6. In this structure, many parts of the lead rod 3 are exposed to air, and there is no problem even if the lead rod 3 is oxidized due to heating during the joining operation of the joint 6. However, in a discharge lamp having a bottomed cylindrical member 8 made of a high melting point metal as shown in FIG. 2, a joining portion 11 for joining the bulb 1 and the branch pipe portion 2 of the light emitting section.
However, the lead rod 3 is oxidized when heated until the glass at the joint is completely blended, even if a protective gas is flowed inside the lamp during the joining operation, since it comes to the position shown in FIG. Oxidation of the components in the lamp causes problems with lamp life, lighting, and arc stability. Also, if the heating of the joint 11 is small, the high pressure inside the lamp cannot be tolerated, and the glass of the joint 11 will be damaged.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記事情に
鑑みなされたものであって、その目的とするところは、
放電ランプの品質を向上することである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its purpose is to provide:
It is to improve the quality of the discharge lamp.
【０００４】[0004]
【課題を解決するための手段】本発明の目的は、石英ガ
ラスからなるバルブと、ガラスからなり、内部にリード
棒が挿通された円筒状の枝管部と、高融点金属からな
り、前記枝管部の一端部にその開口周縁部が溶着され
て、前記リード棒が底部を貫通する有底円筒型金属部材
と、前記リード棒に保持された電極とを具備してなり、
前記バルブの両端の各々に前記リード棒が挿通された前
記枝管部の他端部が接合されて、接合部が形成されて、
内部にキセノンを含むガスが高圧に封入された高圧放電
ランプにおいて、前記バルブの両端と前記枝管部の他端
部との接合部の内径を９ｍｍ以上、肉厚７ｍｍ以下にす
ることによって達成される。SUMMARY OF THE INVENTION An object of the present invention is to provide a quartz glass.
Glass bulb and lead inside
It consists of a cylindrical branch pipe through which a rod is inserted and a refractory metal.
The edge of the opening is welded to one end of the branch pipe.
And the bottomed cylindrical metal member through which the lead rod penetrates the bottom.
And an electrode held by the lead bar,
Before the lead bar is inserted into each of both ends of the valve
The other end of the branch pipe is joined to form a joint,
High-pressure discharge in which gas containing xenon is sealed at high pressure
In a lamp, both ends of the bulb and the other end of the branch pipe portion
The inner diameter of the joint with the part should be 9 mm or more and the thickness 7 mm or less.
Is achieved by
【０００５】[0005]
【作用】加熱によるランプ部品の酸化問題点を解決する
ため、接合部の内径とその肉厚を検討しその最適範囲を
決めたことによって、接合部のガラスを十分に加熱加工
でき、その時でもリード棒は酸化せず品質の良いランプ
ができる。[Function] In order to solve the problem of oxidation of lamp parts due to heating, the inner diameter and thickness of the joint were examined and the optimum range was determined. The sticks do not oxidize and produce good quality lamps.
【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構造の説明図であ
る。図２は、高融点金属で出来た有底円筒部材を有する
放電ランプの説明図である。図１と図２は同符号で同等
部分を示す。１はバルブ、２はバルブに連なる枝管部で
その各両端部に有底円筒型の高融点金属部材８がある。
この部材８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。９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、１
０は該支持部材９を固定している高融点金属コイルであ
る。１１はバルブ１と枝管部２との接合部である。接合
作業時のリード棒の酸化を防ぐための保護ガスの種類、
流量を変えて実験を行ったが、ガラスが十分なじむまで
加熱加工するとリード棒３は酸化してしまう。加工時の
バーナーの火力、炎のあて方も種々変えたが結果は同じ
で、リード棒はやはり酸化してしまった。そこで、枝管
部２の内径、肉厚を変えて実験を行ってみた。その結
果、枝管部２の内径が９ｍｍより細くなるとリード棒３
に近くなり酸化してしまう。また、肉厚が７ｍｍより厚
くなると加工時の炎を大きくせねばならず、加工時間も
長くなってリード棒３が酸化してしまう事が判った。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view of the structure of a conventional discharge lamp. FIG. 2 is an explanatory view of a discharge lamp having a bottomed cylindrical member made of a high melting point metal. 1 and 2 denote the same parts with the same reference numerals. 1 is a valve, 2 is a branch pipe part connected to the valve, and there is a bottomed cylindrical high melting point metal member 8 at each end.
A lead rod 3 is provided through the member 8, and an anode 4 and a cathode 5 are connected to the other end, respectively. Reference numeral 9 denotes a support member for a high melting point metal plate through which the lead rod 3 penetrates.
Reference numeral 0 denotes a high melting point metal coil to which the support member 9 is fixed. Reference numeral 11 denotes a joint between the valve 1 and the branch pipe 2. Types of protective gas to prevent oxidation of the lead rod during joining work,
An experiment was conducted with changing the flow rate. However, if the heating process is performed until the glass is sufficiently adjusted, the lead rod 3 is oxidized. The burning power of the burner during processing and the way of applying the flame were variously changed, but the result was the same, and the lead rod was also oxidized. Therefore, an experiment was conducted by changing the inner diameter and the wall thickness of the branch pipe portion 2. As a result, when the inner diameter of the branch pipe portion 2 becomes smaller than 9 mm, the lead rod 3
And oxidize. Further, it was found that when the wall thickness was more than 7 mm, the flame during processing had to be increased, and the processing time was long, and the lead rod 3 was oxidized.
【０００７】[0007]
【発明の効果】以上の説明から明らかなように、本発明
によれば枝管部とバルブとの接合に際してランプ内部の
リード棒の酸化がなく、枝管部とバルブとの接合部も十
分になじみ品質の良い高圧放電ランプができる。As is apparent from the above description, according to the present invention, when the branch pipe and the bulb are joined, the lead rod inside the lamp is not oxidized, and the junction between the branch pipe and the bulb is sufficiently formed. A high-pressure discharge lamp with good familiarity can be obtained.
【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】本発明に関係する放電ランプの説明図である。FIG. 2 is an explanatory diagram of a discharge lamp related to the present invention.
１ バルブ ２ 枝管部 ３ リード棒 ４ 陽極 ５ 陰極 ６ 接合部 ７ 段継ガラス部 ８ 有底円筒金属部材 ９ 支持部材 １０ 高融点金属コイル DESCRIPTION OF SYMBOLS 1 Bulb 2 Branch pipe part 3 Lead rod 4 Anode 5 Cathode 6 Joint part 7 Step glass part 8 Bottom cylindrical metal member 9 Support member 10 High melting point metal coil
Claims (1)
らなり、内部にリード棒が挿通された円筒状の枝管部
と、高融点金属からなり、前記枝管部の一端部にその開
口周縁部が溶着されて、前記リード棒が底部を貫通する
有底円筒型金属部材と、前記リード棒に保持された電極
とを具備してなり、 前記バルブの両端の各々に前記リード棒が挿通された前
記枝管部の他端部が接合されて、接合部が形成されて、
内部にキセノンを含むガスが高圧に封入された高圧放電
ランプにおいて、 前記バルブの両端と前記枝管部の他端部との接合部の内
径は９ｍｍ以上で肉厚７ｍｍ以下であることを特徴とす
る高圧 放電ランプ1. A bulb made of quartz glass and a bulb made of glass.
Cylindrical branch pipe with a lead rod inserted inside
And a high melting point metal, which is opened at one end of the branch pipe.
The edge of the mouth is welded and the lead rod penetrates the bottom
A cylindrical metal member with a bottom and an electrode held by the lead rod
It comprises a preparative, before the lead rod is inserted into each of both ends of the valve
The other end of the branch pipe is joined to form a joint,
High-pressure discharge in which gas containing xenon is sealed at high pressure
In the lamp, the inside of the joint between the both ends of the bulb and the other end of the branch pipe portion
The diameter is 9mm or more and the thickness is 7mm or less.
High pressure discharge lamp
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06168700A JP3127724B2 (en) | 1994-06-29 | 1994-06-29 | High pressure discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06168700A JP3127724B2 (en) | 1994-06-29 | 1994-06-29 | High pressure discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0817400A JPH0817400A (en) | 1996-01-19 |
| JP3127724B2 true JP3127724B2 (en) | 2001-01-29 |
Family
ID=15872843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06168700A Expired - Fee Related JP3127724B2 (en) | 1994-06-29 | 1994-06-29 | High pressure discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3127724B2 (en) |
-
1994
- 1994-06-29 JP JP06168700A patent/JP3127724B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0817400A (en) | 1996-01-19 |
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