JPH07192695A - Electric discharge lamp and manufacturing method thereof - Google Patents
Electric discharge lamp and manufacturing method thereofInfo
- Publication number
- JPH07192695A JPH07192695A JP33258493A JP33258493A JPH07192695A JP H07192695 A JPH07192695 A JP H07192695A JP 33258493 A JP33258493 A JP 33258493A JP 33258493 A JP33258493 A JP 33258493A JP H07192695 A JPH07192695 A JP H07192695A
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- sealing portion
- sealing
- discharge lamp
- light emitting
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は自動車用ヘッドライト等
に用いる放電ランプおよびその製造方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp used for automobile headlights and the like and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来の放電ランプは、内部に電極が対設
された放電部と、この放電部の両端に連設された封止部
とを備えており、この両端の封止部と紫外線遮断用ガラ
ス管の両端部とをそれぞれ封着して一体化し、放電部と
封止部とを紫外線遮断用ガラス管で包囲した構成を有し
ている（特開平５−２３４５６８号公報）。2. Description of the Related Art A conventional discharge lamp is provided with a discharge part in which electrodes are opposed to each other and sealing parts connected to both ends of the discharge part. Both ends of the blocking glass tube are sealed and integrated, and the discharge part and the sealing part are surrounded by the ultraviolet blocking glass tube (Japanese Patent Laid-Open No. 234568/1993).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の放電ランプでは、放電部と封止部は紫外線遮
断用ガラス管で包囲し、この紫外線遮断用ガラス管の両
端部と封止部とを封着して一体化されている。したがっ
て、この一体化の加工中、一度加工された発光管の封止
部を再び熱によって加工するので、封止部に封止された
導入箔であるモリブデン箔と、封止部のガラスとの気密
性、すなわち封止部内の気密性が損なわれリークを起こ
して不点となる。また、ランプ点灯中におけるヒートサ
イクルによって熱歪によるクラックを発生させてしま
う。However, in such a conventional discharge lamp, the discharge part and the sealing part are surrounded by a glass tube for blocking ultraviolet rays, and both ends and the sealing part of the glass tube for blocking ultraviolet rays are surrounded. Are sealed and integrated. Therefore, during the processing of this integration, since the sealing part of the arc tube that has been processed once is processed by heat again, the molybdenum foil that is the introduction foil sealed in the sealing part and the glass of the sealing part The airtightness, that is, the airtightness in the sealing portion is impaired, causing a leak, which is a defect. In addition, a crack due to thermal strain is generated by a heat cycle while the lamp is on.
【０００４】本発明は、このような従来の問題を解決す
るためになされたもので、加工中における封止部のリー
クを防止し、かつ熱歪によるクラックを防止することの
できる長寿命の放電ランプとその製造方法を提供するこ
とを目的としたものである。The present invention has been made to solve such a conventional problem, and has a long-life discharge capable of preventing leakage of a sealing portion during processing and preventing cracks due to thermal strain. It is intended to provide a lamp and a manufacturing method thereof.
【０００５】[0005]
【課題を解決するための手段】本発明の放電ランプは、
内部に一対の電極を有する発光部の両端に封止部が連設
され、かつ前記封止部のそれぞれの反発光部側に管状の
非封止部がそれぞれ連設されており、前記非封止部のそ
れぞれに紫外線遮断用ガラス管の両端部を固着して、前
記発光部および前記封止部を前記紫外線遮断用ガラス管
で覆った構成を有する。また本発明の放電ランプの製造
方法は、内部に一対の電極を有する発光部の両端に封止
部を連設し、かつ前記封止部のそれぞれの反発光部側に
管状の非封止部をそれぞれ連設し、前記非封止部のそれ
ぞれに紫外線遮断用ガラス管の両端部を固着して、前記
発光部および前記封止部を前記紫外線遮断用ガラス管で
覆う放電ランプの製造方法であって、前記紫外線遮断用
ガラス管の端部を加熱することによって軟化させて、前
記紫外線遮断用ガラス管の両端部と前記非封止部とをそ
れぞれ溶着する構成を有する。DISCLOSURE OF THE INVENTION The discharge lamp of the present invention comprises:
A sealing portion is continuously provided at both ends of a light emitting portion having a pair of electrodes therein, and tubular non-sealing portions are continuously provided at respective non-light emitting portion sides of the sealing portion. Both ends of the ultraviolet blocking glass tube are fixed to each of the stoppers, and the light emitting section and the sealing section are covered with the ultraviolet blocking glass tube. Further, the manufacturing method of the discharge lamp of the present invention is such that a sealing part is continuously provided at both ends of a light emitting part having a pair of electrodes therein, and a tubular non-sealing part is provided on each anti-light emitting part side of the sealing part. In a method of manufacturing a discharge lamp, wherein both ends of a glass tube for blocking ultraviolet rays are fixed to each of the non-sealing portions, and the light emitting portion and the sealing portion are covered with the glass tube for blocking ultraviolet rays. The ultraviolet blocking glass tube has an end portion which is softened by heating so that both end portions of the ultraviolet blocking glass tube and the non-sealing portion are welded to each other.
【０００６】[0006]
【作用】かかる構成により、非封止部と紫外線遮断用の
ガラス管の両端部とをそれぞれ固着しているため、封止
部内の気密性を損なわない。With this structure, since the non-sealing portion and the both ends of the glass tube for blocking ultraviolet rays are fixed to each other, the airtightness inside the sealing portion is not impaired.
【０００７】[0007]
【実施例】以下、本発明の一実施例である放電ランプに
ついて図面を用いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A discharge lamp which is an embodiment of the present invention will be described below with reference to the drawings.
【０００８】図１および図２に示す本発明実施例の放電
ランプＡにおいて、発光管１は、内部に一対の例えばタ
ングステンからなる電極５，６を有し、かつ放電空間を
形成する楕円体形状の発光部２と、この発光部２の両端
に封止部３，４を有している。発光部２の内部にはキセ
ノン、水銀とともにナトリウム、スカンジウム等の発光
金属がハロゲン化物の形で封入されている。封止部３，
４には、一端部に電極５，６が接続され、他端部に外部
リード線９，１０が接続された導入箔としてモリブデン
箔７，８がそれぞれ封止されている。封止部３，４の反
発光部側には円管形状の非封止部１１，１２が連設され
ている。点灯中に発光管１から放射される紫外線を遮断
する紫外線遮断用ガラス管１６は、発光部２を包囲する
中央部１３と、その中央部１３の両端部に連設され、か
つ封止部３，４を包囲し中央部１３よりも細く絞られた
保持部１４，１５とからなる。放電ランプＡは、図２に
示すように、ガラス管１６内に発光管１を挿入し、発光
管１の非封止部１１，１２とガラス管１６の保持部１
４，１５とをそれぞれ溶着して一体化されている。これ
によって、封止部内の気密性が保たれた放電ランプを得
ることができる。In the discharge lamp A of the embodiment of the present invention shown in FIGS. 1 and 2, the arc tube 1 has an ellipsoidal shape having a pair of electrodes 5 and 6 made of, for example, tungsten inside and forming a discharge space. The light emitting section 2 and the sealing sections 3 and 4 are provided at both ends of the light emitting section 2. Inside the light emitting portion 2, a light emitting metal such as sodium and scandium is enclosed in the form of a halide together with xenon and mercury. Sealing part 3,
4, electrodes 5 and 6 are connected to one end and external lead wires 9 and 10 are connected to the other ends, and molybdenum foils 7 and 8 are respectively sealed as introduction foils. Non-sealing portions 11 and 12 in the shape of circular tubes are continuously provided on the side opposite to the light emitting portions of the sealing portions 3 and 4. An ultraviolet blocking glass tube 16 for blocking the ultraviolet rays emitted from the arc tube 1 during lighting is provided in a central portion 13 surrounding the light emitting portion 2 and both end portions of the central portion 13 and is continuous with the sealing portion 3. , 4 and holding portions 14 and 15 that are narrower than the central portion 13 and surround the surrounding portions. In the discharge lamp A, as shown in FIG. 2, the arc tube 1 is inserted into the glass tube 16, and the non-sealing parts 11 and 12 of the arc tube 1 and the holding part 1 of the glass tube 16 are inserted.
4 and 15 are welded and integrated. This makes it possible to obtain a discharge lamp in which the hermeticity of the sealed portion is maintained.
【０００９】次に上記した本発明の一実施例の放電ラン
プの製造方法について説明する。図３および図４に示す
ように、通常の製造方法によって製作された発光管１
と、紫外線遮断用ガラス管１６が通常のガラス旋盤２８
に取り付けられている。この旋盤２８は、一方に主軸台
２９、他方に心押し台３３を備えており、この主軸台２
９には非封止部１１を取り付けるためのコレットチャッ
ク３０を有し、また心押し台３３の一方には、非封止部
１２を取り付けるためのコレットチャック３４を有して
いる。そして、発光管１はその非封止部１１をコレット
チャック３０に挿入して固定され、また非封止部１２を
コレットチャック３４に挿入して旋盤２８内に取り付け
られている。ガラス管１６内には、発光管１が挿通され
ており、ガラス管固定台３１に固定されている。このガ
ラス管固定台３１は、旋盤２８の主軸台２９に設けられ
ており、主軸台２９と共に軸３２を中心に回動する。心
押し台３３の他方には、非封止部１２に窒素ガスを流す
ための窒素供給管３６と、その窒素ガスを排出するため
の窒素排出管３７が接続されている。ガラス管１６の保
持部１５に隣接してバーナー３８と加工治具３９が設け
られており、バーナー３８は、保持部１５の局限された
周面の領域４１に対して炎４０で加熱する。また加工治
具３９は軸３２に対して垂直に可動するように設けられ
ている。Next, a method of manufacturing the above-described discharge lamp of one embodiment of the present invention will be described. As shown in FIGS. 3 and 4, an arc tube 1 manufactured by a normal manufacturing method.
And the glass tube 16 for blocking ultraviolet rays is a normal glass lathe 28
Is attached to. The lathe 28 has a headstock 29 on one side and a tailstock 33 on the other side.
9 has a collet chuck 30 for mounting the non-sealing portion 11, and one of the tailstocks 33 has a collet chuck 34 for mounting the non-sealing portion 12. Then, the arc tube 1 is fixed by inserting the non-sealing portion 11 into the collet chuck 30 and inserting the non-sealing portion 12 into the collet chuck 34 and installed in the lathe 28. The arc tube 1 is inserted into the glass tube 16 and is fixed to the glass tube fixing base 31. The glass tube fixing base 31 is provided on the headstock 29 of the lathe 28 and rotates with the headstock 29 around the shaft 32. To the other side of the tailstock 33, a nitrogen supply pipe 36 for flowing a nitrogen gas into the non-sealing portion 12 and a nitrogen discharge pipe 37 for discharging the nitrogen gas are connected. A burner 38 and a processing jig 39 are provided adjacent to the holding portion 15 of the glass tube 16, and the burner 38 heats a region 41 of a limited peripheral surface of the holding portion 15 with a flame 40. Further, the processing jig 39 is provided so as to be vertically movable with respect to the shaft 32.
【００１０】旋盤２８に固定された発光管１は、旋盤２
８が軸３２を中心に回動することによって旋盤２８と共
に回動し、かつ、ガラス管１６を固定しているガラス管
固定台３１も軸３２の周りを回動する。旋盤２８を回動
させながら非封止部１２内に窒素ガスを流す。そして、
窒素ガスを流しながら、発光管１が旋盤２８によって軸
３２を中心にゆっくりと回動する間に、領域４１の石英
が軟化点に達するまで炎４０で保持部１５の領域４１を
加熱する。加工治具３９はこの加熱動作中、静止されて
いるが、領域４１の石英が充分に軟化すると、図４に示
すように、加工治具３９は軸３２に向かって垂直に可動
し、領域４１をゆっくり加圧して圧縮していく。そして
この動作中に、非封止部１２も徐々に軟化されていき、
この軟化によって保持部１５と非封止部１２が接触し溶
着される。この方法によって保持部１５と非封止部１２
を確実に溶着させることができる。The arc tube 1 fixed to the lathe 28 is a lathe 2
When 8 rotates around the shaft 32, it rotates together with the lathe 28, and the glass tube fixing base 31 fixing the glass tube 16 also rotates around the shaft 32. Nitrogen gas is caused to flow into the non-sealing portion 12 while rotating the lathe 28. And
While flowing the nitrogen gas, while the arc tube 1 is slowly rotated about the shaft 32 by the lathe 28, the flame 41 heats the region 41 of the holding portion 15 until the quartz in the region 41 reaches the softening point. Although the processing jig 39 is stationary during this heating operation, when the quartz in the region 41 is sufficiently softened, the processing jig 39 moves vertically toward the axis 32 as shown in FIG. Slowly pressurize and compress. Then, during this operation, the non-sealing portion 12 is gradually softened,
Due to this softening, the holding portion 15 and the non-sealing portion 12 come into contact with each other and are welded. By this method, the holding portion 15 and the non-sealing portion 12
Can be reliably welded.
【００１１】なお、上記した本発明一実施例である放電
ランプの製造方法に引き続いて次のような方法を行なっ
てもよい。すなわち、軟化によって保持部１５と非封止
部１２が接触し溶着を始めたら、さらに、加工治具３９
で非封止部１２を元の外径よりもわずかに小さくなるま
で圧縮させ、その後、加工治具３９を離間させる。加工
治具３９を離間させると同時に窒素排出管３７を閉塞し
て、非封止部１２の内部圧力を窒素ガスによって高く
し、軟化した領域４１の非封止部１２を徐々に膨張させ
る。この膨張によって非封止部１２の外径が元に戻った
ら炎４０を止めて窒素排出管３７を開放して内部圧力を
元に戻し、非封着部１２とガラス管１６の保持部１５と
の溶着が完了する。この方法によって保持部１５と非封
止部１２とを確実かつ強固に溶着させることができる。The following method may be carried out subsequent to the method for manufacturing the discharge lamp according to the embodiment of the present invention. That is, when the holding portion 15 and the non-sealing portion 12 come into contact with each other due to softening and welding is started, the processing jig 39 is further processed.
Then, the non-sealing portion 12 is compressed until it becomes slightly smaller than the original outer diameter, and then the processing jig 39 is separated. At the same time as separating the processing jig 39, the nitrogen discharge pipe 37 is closed, the internal pressure of the non-sealing portion 12 is increased by the nitrogen gas, and the non-sealing portion 12 of the softened region 41 is gradually expanded. When the outer diameter of the non-sealing portion 12 returns to its original value due to this expansion, the flame 40 is stopped and the nitrogen discharge pipe 37 is opened to restore the internal pressure to the non-sealing portion 12 and the holding portion 15 of the glass tube 16. Welding is completed. By this method, the holding portion 15 and the non-sealing portion 12 can be securely and firmly welded.
【００１２】上記したそれぞれの方法によって保持部１
５と非封止部１２が溶着された後、コレットチャック３
０，３４から発光管１をはずして、発光部２を中心にし
て発光管１を１８０゜回転させ、図５に示すように非封
止部１１をコレットチャック３４に、非封止部１２をコ
レットチャック３０にそれぞれ固定させた後、非封止部
１１内に窒素ガスを流し、上記した動作を発光管１の非
封止部１１とガラス管１６の保持部１４に対して繰り返
すことにより、上記した本発明の一実施例である放電ラ
ンプＡを得ることができる。The holding portion 1 is formed by each of the above methods.
5 and the non-sealing portion 12 are welded together, the collet chuck 3
Remove the arc tube 1 from 0 and 34, rotate the arc tube 1 180 ° around the light emitting part 2, and put the non-sealing part 11 on the collet chuck 34 and the non-sealing part 12 as shown in FIG. After being fixed to the collet chucks 30, nitrogen gas is caused to flow into the non-sealing portion 11, and the above-described operation is repeated for the non-sealing portion 11 of the arc tube 1 and the holding portion 14 of the glass tube 16, The discharge lamp A which is one embodiment of the present invention described above can be obtained.
【００１３】なお、放電ランプＡを形成する場合におい
て、図６に示すように紫外線遮断用ガラス管４２に、ガ
ラス管４２内を真空にしたり不活性ガスを充填するため
の排気管３５を取り付けておき、発光管の非封着部１
１，１２とガラス管４２の保持部１４，１５をそれぞれ
溶着した後、排気管３５を通してガラス管４２内を真空
にまたは不活性ガス等を充填し、排気管３５を圧搾また
は通常の方法を用いてガラス管４２内を密閉してもよ
い。In the case of forming the discharge lamp A, as shown in FIG. 6, the ultraviolet shielding glass tube 42 is provided with an exhaust pipe 35 for evacuating the glass tube 42 or filling it with an inert gas. Everything, non-sealed part of arc tube 1
After welding 1 and 12 and the holding portions 14 and 15 of the glass tube 42, respectively, the inside of the glass tube 42 is evacuated or filled with an inert gas through the exhaust tube 35, and the exhaust tube 35 is squeezed or a normal method is used. The inside of the glass tube 42 may be sealed.
【００１４】図７および図８は上記した本発明の一実施
例である放電ランプＡを用いた応用例の前照灯用放電ラ
ンプ装置Ｂを示すものである。FIG. 7 and FIG. 8 show a discharge lamp device B for a headlamp, which is an application example using the discharge lamp A which is one embodiment of the present invention.
【００１５】図１に示すような放電ランプＡの非封止部
１１が口金２１内に挿入され支持されている。放電ラン
プＡの外部リード線９は口金２１内を貫通し反放電ラン
プ側に設けられた円筒状の金属端子１９に接続されてい
る。また放電ランプＡの外部リード線１０は電力供給線
２３の一端に接続されており、この電力供給線２３の他
端は口金２１内を貫通し口金２１の反放電ランプ側に設
けられた円筒状の金属端子２０に接続されている。な
お、金属端子１９，２０には高耐圧の絶縁被覆電線１
７，１８がそれぞれ接続されている。また電力供給線２
３はセラミックスリーブ２２で覆われており、そしてス
トッパー２４が電力供給線２３に固着されている。口金
２１の凹部２５は、絶縁被覆電線１７，１８と金属端子
１９，２０との接続部間の絶縁耐圧を確保するために、
口金２１に隔壁２６を一体成形し、かつそれぞれの接続
部を覆うように合成樹脂、例えばシリコーンゴム２７を
充填している。これによって、長寿命の前照灯用放電ラ
ンプ装置を得ることができる。The non-sealing portion 11 of the discharge lamp A as shown in FIG. 1 is inserted and supported in the base 21. The external lead wire 9 of the discharge lamp A penetrates through the base 21 and is connected to a cylindrical metal terminal 19 provided on the side opposite to the discharge lamp. The external lead wire 10 of the discharge lamp A is connected to one end of a power supply line 23, and the other end of the power supply line 23 penetrates the inside of the base 21 and has a cylindrical shape provided on the side opposite to the discharge lamp of the base 21. Is connected to the metal terminal 20 of. It should be noted that the metal terminals 19 and 20 have a high withstand voltage insulation-coated electric wire 1
7 and 18 are respectively connected. In addition, power supply line 2
3 is covered with a ceramic sleeve 22, and a stopper 24 is fixed to the power supply line 23. The concave portion 25 of the base 21 is provided in order to secure a withstand voltage between the connecting portions of the insulating coated electric wires 17, 18 and the metal terminals 19, 20.
A partition wall 26 is integrally formed on the base 21, and a synthetic resin, for example, silicone rubber 27 is filled so as to cover each connection portion. As a result, a long-life headlamp discharge lamp device can be obtained.
【００１６】なお、ガラス管１６は中央部１３とその両
端の保持部１４，１５とを内外径の異なった形状にして
いるが、同径の直管形状にしてもよい。また、発光管１
とガラス管１６との間を真空とするか、またはその間に
窒素やアルゴン等を封入してもよい。In the glass tube 16, the central portion 13 and the holding portions 14 and 15 at both ends thereof have different inner and outer diameters, but they may have a straight tube shape having the same diameter. Also, arc tube 1
A vacuum may be provided between the glass tube 16 and the glass tube 16, or nitrogen, argon, or the like may be sealed between them.
【００１７】[0017]
【発明の効果】以上のように、本発明は、加工中におけ
る封止部のリークを防止し、かつ熱歪によるクラックを
防止することができ、さらに放電ランプからの紫外線の
放射を減少することのできる長寿命の放電ランプおよび
その製造方法を提供することができるものである。As described above, according to the present invention, it is possible to prevent leakage of the sealing portion during processing, prevent cracks due to thermal strain, and reduce the emission of ultraviolet rays from the discharge lamp. It is possible to provide a discharge lamp having a long life and a method for manufacturing the same.
【図１】本発明の一実施例である放電ランプＡの一部切
欠正面図FIG. 1 is a partially cutaway front view of a discharge lamp A according to an embodiment of the present invention.
【図２】同じく分解斜視図FIG. 2 is an exploded perspective view of the same.
【図３】本発明の一実施例である放電ランプの製造方法
を実施するための装置の一例を示す一部切欠正面図FIG. 3 is a partially cutaway front view showing an example of an apparatus for carrying out a discharge lamp manufacturing method according to an embodiment of the present invention.
【図４】同じく要部拡大正面図[Fig. 4] Similarly, an enlarged front view of the main part
【図５】同じく一部切欠正面図[FIG. 5] Similarly, a partially cutaway front view
【図６】紫外線遮断用ガラス管に排気管を用いた場合を
説明するための正面図FIG. 6 is a front view for explaining a case where an exhaust pipe is used as a glass tube for blocking ultraviolet rays.
【図７】本発明の一実施例である放電ランプＡを用いた
応用例の前照灯用放電ランプ装置Ｂの斜視図FIG. 7 is a perspective view of a discharge lamp device B for a headlamp, which is an application example of the discharge lamp A according to an embodiment of the present invention.
【図８】同じく一部切欠正面図FIG. 8 is a partially cutaway front view of the same.
１ 発光管 ３，４ 封止部 １１，１２ 非封止部 １６ 紫外線遮断用のガラス管 DESCRIPTION OF SYMBOLS 1 Luminescent tube 3,4 Sealing part 11,12 Non-sealing part 16 Glass tube for blocking ultraviolet rays
Claims (4)
に封止部が連設され、かつ前記封止部のそれぞれの反発
光部側に管状の非封止部がそれぞれ連設されており、前
記非封止部のそれぞれに紫外線遮断用ガラス管の両端部
を固着して、前記発光部および前記封止部を前記紫外線
遮断用ガラス管で覆ったことを特徴とする放電ランプ。1. A sealing portion is continuously provided at both ends of a light emitting portion having a pair of electrodes inside, and a tubular non-sealing portion is continuously provided at each anti-light emitting portion side of the sealing portion. The discharge lamp is characterized in that both ends of a glass tube for blocking ultraviolet rays are fixed to each of the non-sealing portions, and the light emitting portion and the sealing portion are covered with the glass tube for blocking ultraviolet rays.
に封止部を連設し、かつ前記封止部のそれぞれの反発光
部側に管状の非封止部をそれぞれ連設し、前記非封止部
のそれぞれに紫外線遮断用ガラス管の両端部を固着し
て、前記発光部および前記封止部を前記紫外線遮断用ガ
ラス管で覆う放電ランプの製造方法であって、前記紫外
線遮断用ガラス管の端部を加熱することによって軟化さ
せて、前記紫外線遮断用ガラス管の両端部と前記非封止
部とをそれぞれ溶着することを特徴とする放電ランプの
製造方法。2. A sealing portion is continuously provided at both ends of a light emitting portion having a pair of electrodes inside, and a tubular non-sealing portion is continuously provided at each anti-light emitting portion side of the sealing portion, respectively. A method of manufacturing a discharge lamp, wherein both ends of an ultraviolet blocking glass tube are fixed to each of the non-sealing parts, and the light emitting part and the sealing part are covered with the ultraviolet blocking glass tube, the ultraviolet blocking A method of manufacturing a discharge lamp, characterized in that both ends of the ultraviolet blocking glass tube and the non-sealing part are welded to each other by heating and softening the ends of the glass tube for application.
部との溶着は、紫外線遮断用ガラス管の端部を加熱して
軟化させながら、軟化した前記紫外線遮断用ガラス管の
端部を加工治具によって非封止部に押しつけつつ行なう
ことを特徴とする請求項２記載の放電ランプの製造方
法。3. The welding of the both ends and the non-sealing portion of the ultraviolet blocking glass tube is performed by heating and softening the end of the ultraviolet blocking glass tube while softening the end of the ultraviolet blocking glass tube. 3. The method of manufacturing a discharge lamp according to claim 2, wherein the step is performed while pressing it against the non-sealing portion with a processing jig.
部との溶着は、加工治具によって紫外線遮断用ガラス管
端部と非封止部とを加圧し、前記非封止部の外径を元の
外径よりも小さくした後、前記加工治具を離間するとと
もに前記非封止部内を不活性ガスで充填することにより
前記非封止部の内部圧力を高めて行なうことを特徴とす
る請求項３記載の放電ランプの製造方法。4. The welding of the both ends of the ultraviolet shielding glass tube and the non-sealing portion is performed by pressing the end portion of the glass tube for ultraviolet shielding and the non-sealing portion with a processing jig, After the outer diameter is made smaller than the original outer diameter, the processing jig is separated and the inside pressure of the non-sealing portion is increased by filling the inside of the non-sealing portion with an inert gas. The method of manufacturing a discharge lamp according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33258493A JP3246147B2 (en) | 1993-12-27 | 1993-12-27 | Discharge lamp manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33258493A JP3246147B2 (en) | 1993-12-27 | 1993-12-27 | Discharge lamp manufacturing method |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001205873A Division JP2002075278A (en) | 2001-07-06 | 2001-07-06 | Discharge lamp |
| JP2001205874A Division JP2002033047A (en) | 2001-07-06 | 2001-07-06 | Method of manufacturing discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07192695A true JPH07192695A (en) | 1995-07-28 |
| JP3246147B2 JP3246147B2 (en) | 2002-01-15 |
Family
ID=18256571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33258493A Expired - Fee Related JP3246147B2 (en) | 1993-12-27 | 1993-12-27 | Discharge lamp manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3246147B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970012952A (en) * | 1995-08-31 | 1997-03-29 | 조셉 에스. 로마나우 | Lamp with glass sleeve and method of manufacture |
| US6376988B1 (en) | 1998-08-28 | 2002-04-23 | Matsushita Electric Industrial Co., Ltd. | Discharge lamp for automobile headlight and the automobile headlight |
| JP2004363110A (en) * | 2003-06-05 | 2004-12-24 | Patent Treuhand Ges Elektr Gluehlamp Mbh | Method for manufacturing electric lamp equipped with external envelope and internal vessel disposed in external envelope |
| JP2008532236A (en) * | 2005-02-28 | 2008-08-14 | パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング | Method for manufacturing discharge tube arrangement structure and such discharge tube arrangement structure |
| JP2009503774A (en) * | 2005-07-29 | 2009-01-29 | パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング | Electric lamp with outer bulb |
| JP2015187948A (en) * | 2014-03-27 | 2015-10-29 | 東芝ライテック株式会社 | Hot-cathode ultraviolet lamp |
-
1993
- 1993-12-27 JP JP33258493A patent/JP3246147B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970012952A (en) * | 1995-08-31 | 1997-03-29 | 조셉 에스. 로마나우 | Lamp with glass sleeve and method of manufacture |
| US6376988B1 (en) | 1998-08-28 | 2002-04-23 | Matsushita Electric Industrial Co., Ltd. | Discharge lamp for automobile headlight and the automobile headlight |
| JP2004363110A (en) * | 2003-06-05 | 2004-12-24 | Patent Treuhand Ges Elektr Gluehlamp Mbh | Method for manufacturing electric lamp equipped with external envelope and internal vessel disposed in external envelope |
| JP4518480B2 (en) * | 2003-06-05 | 2010-08-04 | パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング | Method for manufacturing an electric lamp comprising an outer envelope and an inner container arranged in the outer envelope |
| JP2008532236A (en) * | 2005-02-28 | 2008-08-14 | パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング | Method for manufacturing discharge tube arrangement structure and such discharge tube arrangement structure |
| JP2009503774A (en) * | 2005-07-29 | 2009-01-29 | パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング | Electric lamp with outer bulb |
| JP4755688B2 (en) * | 2005-07-29 | 2011-08-24 | パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング | Electric lamp with outer bulb |
| JP2015187948A (en) * | 2014-03-27 | 2015-10-29 | 東芝ライテック株式会社 | Hot-cathode ultraviolet lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3246147B2 (en) | 2002-01-15 |
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