JPH0475229A - Manufacture of discharge lamp - Google Patents
Manufacture of discharge lampInfo
- Publication number
- JPH0475229A JPH0475229A JP18717490A JP18717490A JPH0475229A JP H0475229 A JPH0475229 A JP H0475229A JP 18717490 A JP18717490 A JP 18717490A JP 18717490 A JP18717490 A JP 18717490A JP H0475229 A JPH0475229 A JP H0475229A
- Authority
- JP
- Japan
- Prior art keywords
- mercury
- bulb
- filament coil
- getter
- welded
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000011324 bead Substances 0.000 claims abstract description 10
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 12
- 230000004913 activation Effects 0.000 abstract description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 4
- 150000001342 alkaline earth metals Chemical class 0.000 abstract description 3
- 229910052788 barium Inorganic materials 0.000 abstract description 3
- 229910052712 strontium Inorganic materials 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- 239000010453 quartz Substances 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000001994 activation Methods 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229940100892 mercury compound Drugs 0.000 description 2
- 150000002731 mercury compounds Chemical class 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000645 Hg alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- -1 alkaline earth metal carbonate Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は水銀が封入された放電ランプの製造方法に関し
、特に液晶デイスプレィ装置のバックライトに用いられ
る小型蛍光ランプやイメージリーダー用小型螢光ランプ
の製造方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a mercury-filled discharge lamp, and in particular to a method for manufacturing a discharge lamp filled with mercury, and particularly to a compact fluorescent lamp used in a backlight of a liquid crystal display device and a compact fluorescent lamp for an image reader. The present invention relates to a manufacturing method.
ビデオ一体型カメラやラップトツブ型やブック型のパソ
コン、ワープロのように、液晶パネルを使用するデイス
プレィ装置に使用されるバックライト用の小型蛍光ラン
プやイメージリーダー用小型螢光ランプは、例えば照明
学会誌［第７３巻第５号４０〜４６頁］に詳しく解説さ
れていように１通常の一般照明用の蛍光ランプと異なり
、寸法が小さくて消費電力も小さく、同時に輝度が高く
て演色性が良く、使用寿命が長いことが要求される。こ
のため、低消費電力に適合するように、電流と電圧およ
び始動用希ガスや水銀の封入量が定められ。Compact fluorescent lamps for backlights and compact fluorescent lamps for image readers used in display devices that use liquid crystal panels, such as video cameras, laptop and book-type personal computers, and word processors, are used in the Illuminating Engineering Society of Japan, for example. As explained in detail in [Vol. 73, No. 5, pp. 40-46], 1.Unlike ordinary fluorescent lamps for general lighting, they are smaller in size and consume less power, and at the same time have high brightness and good color rendering. A long service life is required. For this reason, the current, voltage, and amount of starting rare gas and mercury are determined to meet low power consumption.
更には点灯寿命の観点からも最適な電極設計がなされる
。そして、高周波電源で点灯して要求される輝度と演色
性が得られるようにしている。Furthermore, the electrode design is optimal from the viewpoint of lighting life. Then, it is turned on using a high-frequency power source to obtain the required brightness and color rendering properties.
第１図はバックライト用やイメージリーダー用の小型蛍
光ランプを示す。バルブ１の内部両端には一対の電極組
立体４が対向配置されており、バルブ１の両端からジュ
メット線からなる２本のリード線２がそれぞれ伸び出し
ている。また、トリガーとして、一端が一方のリード線
２に接続された近接導体３がバルブ１の表面に沿って管
軸方向に配置されている。バルブ１の内面に蛍光体層が
付着され、そして、バルブ１の内部には、微量の水銀と
ともに、希ガスとしてアルゴンガスが封入されている。Figure 1 shows a compact fluorescent lamp for backlights and image readers. A pair of electrode assemblies 4 are disposed facing each other at both ends inside the bulb 1, and two lead wires 2 made of Dumet wire extend from both ends of the bulb 1, respectively. Further, as a trigger, a proximal conductor 3 whose one end is connected to one lead wire 2 is arranged along the surface of the bulb 1 in the tube axis direction. A phosphor layer is attached to the inner surface of the bulb 1, and argon gas as a rare gas is sealed inside the bulb 1 along with a trace amount of mercury.
ところで、蛍光ランプを小型化するためには。By the way, in order to downsize fluorescent lamps.
電極組立体も小型化する必要がある。そこで、小型で温
度上昇が早くて輝度が高く、かつ消費電力を少なくする
ために、線径の細いタングステン素線をダブルコイルに
巻いたフィラメントコイルを有する熱陰極型の電極が使
用されることが多いが、ビデオカメラのビューファイン
ダーに使用されるバックライト用小型蛍光ランプのよう
に、消費電力がＩＷ以下、例えば０．５Ｗの小型蛍光ラ
ンプの場合、フィラメントコイルの素線径はきわめて細
くなるが５このように細くするとフィラメントコイルの
支持が困難で振動や衝撃に対して弱くなる。このため、
第２図に示すように、ステンレスパイプからなる筒状の
スリーブ４１の一端４１ａに水銀ゲッター４４とともに
リード線２が固定され、このスリーブ４１内にエミッタ
ー物質を付着させたフィラメントコイル４９を配置し、
このスリーブ４１で素線径の細いフィラメントコイル４
９を保持するようにした電極組立体４が実用化されてい
る。このリード線２にはガラスビーズ５が溶着されてお
り、このガラスビーズ５をバルブ１の端部に溶着して螢
光ランプとする。Electrode assemblies also need to be miniaturized. Therefore, in order to be compact, have a fast temperature rise, high brightness, and reduce power consumption, a hot cathode type electrode is used, which has a filament coil made by winding a thin tungsten wire into a double coil. However, in the case of small fluorescent lamps with power consumption of less than IW, such as 0.5W, such as small fluorescent lamps for backlights used in video camera viewfinders, the diameter of the filament coil is extremely thin. 5 If the filament coil is made thin like this, it becomes difficult to support the filament coil and it becomes vulnerable to vibrations and shocks. For this reason,
As shown in FIG. 2, a lead wire 2 is fixed together with a mercury getter 44 to one end 41a of a cylindrical sleeve 41 made of a stainless steel pipe, and a filament coil 49 to which an emitter substance is attached is arranged within this sleeve 41.
With this sleeve 41, the filament coil 4 with a small wire diameter
An electrode assembly 4 designed to hold 9 has been put into practical use. Glass beads 5 are welded to the lead wire 2, and the glass beads 5 are welded to the end of the bulb 1 to form a fluorescent lamp.
螢光ランプ内に水銀を導入する方法は、一般照明用螢光
ランプであれば、消費電力が大きくてバルブも大型であ
るので、バルブ内を排気する工程で導入するが、前記の
小型螢光ランプでは、水銀量が少ないので、固形の水銀
化合物が付着した水銀ゲッター４４を使用している。つ
まり、水銀ゲッター４４は、ニッケル板の一方の面にチ
タンやジルコニウムなどのゲッター金属粉末が焼き付け
られ、他方の面に例えばＴｉ−Ｈｇ合金からなる水銀化
合物を付着させたものであり、組立後に８００℃以下の
温度で加熱すると水銀がバルブ１内に放出され、ゲッタ
ー金属はバルブ１内に発生した不純ガスを吸収する機能
を有する。The method of introducing mercury into a fluorescent lamp is that if it is a fluorescent lamp for general lighting, the power consumption is high and the bulb is large, so mercury is introduced during the process of exhausting the inside of the bulb. Since the amount of mercury is small in the lamp, a mercury getter 44 to which a solid mercury compound is attached is used. In other words, the mercury getter 44 is a nickel plate with getter metal powder such as titanium or zirconium baked on one side and a mercury compound made of, for example, a Ti-Hg alloy attached to the other side. When heated at a temperature below .degree. C., mercury is released into the bulb 1, and the getter metal has the function of absorbing the impure gas generated within the bulb 1.
放電ランプに使用されるエミッター物質は、バリウム、
カルシウム、ストロンチウムなどのアルカリ土類金属の
炭酸物を使用し、この炭酸物を完全な酸化物にして活性
化する。従って、フィラメントコイルに付着したエミッ
ター物質を１０００℃以上に加熱して活性化処理する必
要がするのが普通である。つまり、エミッター物質の活
性化温度と水銀を放出させるための水銀ゲッター４４の
加熱温度が大きく異なる。しかしながら、小型螢光ラン
プでは、エミッター物質が付着したフィラメントコイル
４９と水銀ゲッター４４が近接配置されているので、例
えば、バルブの排気処理をしながらフィラメントコイル
４９を、外部から加熱すると水銀ゲッター４４も同時に
昇温しで水銀が放出し、外部に飛散してしまう。また、
通電してフィラメントコイル４９が自己加熱する場合で
も、水銀ゲッター４４も同時に昇温しで水銀が外部に飛
散することがある。The emitter materials used in discharge lamps are barium,
Carbonates of alkaline earth metals such as calcium and strontium are used, and the carbonates are converted into complete oxides and activated. Therefore, it is usually necessary to activate the emitter material attached to the filament coil by heating it to 1000° C. or higher. That is, the activation temperature of the emitter material and the heating temperature of the mercury getter 44 for releasing mercury are significantly different. However, in a small fluorescent lamp, the filament coil 49 to which the emitter substance is attached and the mercury getter 44 are placed close to each other. At the same time, as the temperature rises, mercury is released and scattered outside. Also,
Even when the filament coil 49 self-heats by being energized, the temperature of the mercury getter 44 also rises at the same time, and mercury may scatter to the outside.
そこで本発明は、バルブの両端部に溶着されたリード線
の内端部にエミッター物質が付着したフィラメントコイ
ルと水銀ゲッター部材からなる電極組立体が取り付けら
れた放電ランプを製造する方法において、エミッター物
質の活性化処理と水銀放出処理を確実に行うことができ
るようにすることを目的とする。Therefore, the present invention provides a method for manufacturing a discharge lamp in which an electrode assembly consisting of a filament coil to which an emitter material is attached and a mercury getter member is attached to the inner end of a lead wire welded to both ends of a bulb. The purpose is to ensure that mercury activation treatment and mercury release treatment can be performed reliably.
ｒ問題点を解決するための手段〕
かかる目的を達成するために、本発明は、前記の放電ラ
ンプを製造するのに際して、ガラスビーズを具えるリー
ド線と、水銀ゲッター部材と、前記工程を経たフィラメ
ントコイルを組み立てて電極組立体とする工程と、電極
組立体のガラスビーズをバルブの端部に溶着する工程と
、バルブ端部の溶着後に水銀ゲッター材を加熱してバル
ブ内に水銀を放出させる工程とで構成する。Means for Solving Problems] In order to achieve the above object, the present invention provides a lead wire provided with glass beads, a mercury getter member, and a mercury getter member that has undergone the above steps when manufacturing the discharge lamp described above. Assembling the filament coil into an electrode assembly, welding the glass beads of the electrode assembly to the end of the bulb, and heating the mercury getter material after welding the end of the bulb to release mercury into the bulb. It consists of a process.
すなわち、温度の高いエミッター物質の活性化処理を前
もって行っておき、組立後に温度の低い水銀放出処理を
行うようにしたので、各工程を確実に行うことができて
水銀が外部に飛散することがない、しかも、水銀放出処
理時にフィラメントコイルが結果的に再処理されること
になり、このとき放出された不純ガスがゲッター部材に
吸収され、ランプ性能が向上する利点がある。In other words, the high-temperature activation process for the emitter material is performed in advance, and the low-temperature mercury release process is performed after assembly, so each process can be performed reliably and mercury will not be scattered outside. Moreover, the filament coil ends up being reprocessed during the mercury release process, and the impure gas released at this time is absorbed by the getter member, which has the advantage of improving lamp performance.
先ず、エミッター物質の活性化工程において、第３図に
示すように、エミッター物質として、バリウム、カルシ
ウム、ストロンチウムなどのアルカリ土類金属の炭酸物
が付着したフィラメントコイル４９を１万個程度のロッ
トで石英ボート６１に載せ、排気系に接続された石英管
６２に入れる。First, in the emitter material activation process, as shown in FIG. 3, filament coils 49 to which carbonates of alkaline earth metals such as barium, calcium, and strontium are attached as emitter materials are prepared in lots of about 10,000 pieces. It is placed on a quartz boat 61 and placed in a quartz tube 62 connected to an exhaust system.
なお、第２図に示すスリーブ４１にフィラメントコイル
４９を取り付けてから石英ボート６１に載せてもよく、
また石英管６２を不活性ガスや水素ガスの供給装置に接
続してこれらのガスをオーバーフローさせた状態にして
もよく、更には石英ボートの代わりに金属製のボートも
使用できる。そして、石英管６２を１０００℃以上の図
示略の電気炉内で加熱すると、エミッター物質はアルカ
リ土類金属の炭酸物から酸化物になり、確実に活性化処
理を行うことができる。活性化処理が終るとアルゴンガ
スを石英管６２内に充填し、開口を封止して次工程に備
える。Note that the filament coil 49 may be attached to the sleeve 41 shown in FIG. 2 and then placed on the quartz boat 61.
Furthermore, the quartz tube 62 may be connected to a supply device for inert gas or hydrogen gas to cause these gases to overflow, and furthermore, a metal boat may be used instead of the quartz boat. Then, when the quartz tube 62 is heated in an electric furnace (not shown) at a temperature of 1000° C. or higher, the emitter substance changes from an alkaline earth metal carbonate to an oxide, and the activation process can be performed reliably. When the activation process is completed, argon gas is filled into the quartz tube 62, the opening is sealed, and the tube is prepared for the next step.
次に、前工程でエミッター物質の活性化処理を終えたフ
ィラメントコイル４９、それに前記の水銀ゲッター４４
、およびガラスビーズ５を具えたリード線２を溶接して
第２図に示す電極組立体４を組み立てる。この溶接作業
は、アルゴンガスの流れたドライボックス内でスポット
溶接機にて行う。組立が終ると不活性雰囲気の石英管内
に入れてシールして保管し、次工程に備える。もつとも
、直ちに次の溶着工程に送るときはシールしなくてもよ
い。Next, the filament coil 49 whose emitter substance has been activated in the previous step, and the mercury getter 44
, and lead wire 2 with glass beads 5 are welded to assemble the electrode assembly 4 shown in FIG. This welding work is performed using a spot welder in a dry box with argon gas flowing through it. Once assembled, it is sealed and stored in a quartz tube in an inert atmosphere in preparation for the next process. However, it is not necessary to seal it when immediately sending it to the next welding process.
次に、バルブ用ガラス管の端部に電極組立体４を配置し
、ガラスビーズ５をバルブ用ガラス管に溶着するが、こ
の溶着方法は種々の方法が可能である。その１例として
第４図は［無排気孔型」の溶着方法を示す、減圧機に接
続された保持台７１にペルジャー７２が着脱自在に嵌着
されるが、先ず、ホルダー７３に保持された黒鉛やモリ
ブデンなどの高融点材料からなる型７４内にバルブ用ガ
ラス管ＩＡと電極組立体４を配置し、ガラス管ＩＡの端
部を型７４で覆う、なお、リード線２は型７４の底面の
孔から下方に伸び出している。しかして、ペルジャー７
２を被せて内部を排気するとともにアルゴンなどの不活
性ガスを導入し、高周波発振器に接続された誘導コイル
７５に通電すると、型７４が１ｏｏｏ℃程度に発熱して
ガラス管ＩＡの端部が溶融し、一端が溶着できる１次に
、ガラス管ＩＡの上下を反転し、数十トール程度の所定
の不活性ガス圧下で同様に他方の端部も溶着するととも
に、バルブ１内に所定のガス圧の不活性ガスを封入する
。Next, the electrode assembly 4 is placed at the end of the glass bulb tube, and the glass beads 5 are welded to the glass bulb tube. Various methods can be used for this welding. As an example, FIG. 4 shows a [non-exhaust hole type] welding method, in which a Pelger 72 is removably fitted onto a holding stand 71 connected to a pressure reducing machine. The bulb glass tube IA and the electrode assembly 4 are placed in a mold 74 made of a high melting point material such as graphite or molybdenum, and the end of the glass tube IA is covered with the mold 74.The lead wire 2 is attached to the bottom of the mold 74. It extends downward from the hole. However, Pelger 7
When the mold 74 heats up to about 100°C and the end of the glass tube IA melts, the mold 74 heats up to about 100°C and the end of the glass tube IA melts. Then, after one end can be welded, the glass tube IA is turned upside down and the other end is similarly welded under a predetermined inert gas pressure of about several tens of Torr. Fill with inert gas.
これで第１図に示す螢光ランプの外形が完成するが、最
後の工程として、水銀ゲッター４４を外部から例えば誘
導加熱法で８００℃以下に加熱して水銀をバルブ１内に
放出させると螢光ランプが完成する。放出した水銀は、
バルブ１の両端が溶着されているので外部に飛散するこ
とがなく、確実に水銀放出処理を実行することができる
。このとき、フィラメントコイル４９などが同様に加熱
され、再処理されるのでランプ性能が向上する。This completes the external shape of the fluorescent lamp shown in FIG. 1, but in the final step, the mercury getter 44 is heated externally to 800° C. or lower using, for example, induction heating to release mercury into the bulb 1. The light lamp is completed. The mercury released is
Since both ends of the bulb 1 are welded, mercury does not scatter to the outside, and the mercury release process can be performed reliably. At this time, the filament coil 49 and the like are similarly heated and reprocessed, improving lamp performance.
そして、このときに発生する不純ガスは水銀ゲッター４
４のゲッター材に吸収されるので悪影響はない。The impure gas generated at this time is the mercury getter 4.
Since it is absorbed by the getter material in step 4, there is no adverse effect.
以上説明したように１本発明は、温度の高いエミッター
物質の活性化処理を前もって行い１組立後に温度の低い
水銀放出処理を行うようにしたので、各工程を確実に行
うことができて水銀が外部に飛散することがなく、更に
は、水銀放出処理時にフィラメントコイルが結果的に再
処理されるのでランプ性能が向上する。As explained above, according to the present invention, the high-temperature emitter material is activated in advance and the low-temperature mercury release process is performed after one assembly, so each process can be performed reliably and mercury can be removed. Lamp performance is improved since there is no external scattering and the filament coil is subsequently reprocessed during the mercury release process.
第１図は小型蛍光ランプの正面図、第２図は電極組立体
の斜視図、第３図と第４図は工程の説明図である。FIG. 1 is a front view of a compact fluorescent lamp, FIG. 2 is a perspective view of an electrode assembly, and FIGS. 3 and 4 are explanatory views of the process.
Claims (1)
ター物質が付着したフィラメントコイルと水銀ゲッター
部材からなる電極組立体が取り付けられた放電ランプを
製造する方法であって、フィラメントコイルに付着した
エミッター物質を加熱して活性化処理する工程と、 ガラスビーズを具えるリード線と、水銀ゲッター部材と
、前記工程を経たフィラメントコイルを組み立てて電極
組立体とする工程と、 前記電極組立体のガラスビーズをバルブの端部に溶着す
る工程と、 バルブ端部の溶着後に水銀ゲッター材を加熱してバルブ
内に水銀を放出させる工程とを含むことを特徴とする放
電ランプの製造方法。[Scope of Claims] A method for manufacturing a discharge lamp in which an electrode assembly consisting of a filament coil to which an emitter substance is attached and a mercury getter member is attached to the inner end of a lead wire welded to both ends of a bulb, the method comprising: , a step of heating and activating the emitter substance attached to the filament coil; a step of assembling the lead wire including the glass beads, the mercury getter member, and the filament coil after the above steps into an electrode assembly; A discharge lamp comprising the steps of: welding the glass beads of the electrode assembly to the end of the bulb; and after welding the end of the bulb, heating a mercury getter material to release mercury into the bulb. Production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18717490A JP2807552B2 (en) | 1990-07-17 | 1990-07-17 | Discharge lamp manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18717490A JP2807552B2 (en) | 1990-07-17 | 1990-07-17 | Discharge lamp manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0475229A true JPH0475229A (en) | 1992-03-10 |
| JP2807552B2 JP2807552B2 (en) | 1998-10-08 |
Family
ID=16201403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18717490A Expired - Fee Related JP2807552B2 (en) | 1990-07-17 | 1990-07-17 | Discharge lamp manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2807552B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984790A (en) * | 1997-08-13 | 1999-11-16 | Nsk Ltd. | Universal joint |
-
1990
- 1990-07-17 JP JP18717490A patent/JP2807552B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984790A (en) * | 1997-08-13 | 1999-11-16 | Nsk Ltd. | Universal joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2807552B2 (en) | 1998-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH11176385A (en) | Short arc type extra high pressure discharge lamp | |
| JPH0475229A (en) | Manufacture of discharge lamp | |
| EP1607997B1 (en) | Method for producing high-pressure discharge lamp, high-pressure discharge lamp and lamp unit using such high-pressure discharge lamp, and image display | |
| JP5319087B2 (en) | Electrode mount, arc tube, low-pressure mercury discharge lamp and bulb-type fluorescent lamp | |
| JP2871499B2 (en) | Manufacturing method of cold cathode fluorescent lamp | |
| JPH0589828A (en) | Fluorescent lamp | |
| JPH05151936A (en) | Cold cathode discharge lamp and its sealing method | |
| JPH01243339A (en) | Manufacture of fluorescent lamp | |
| JPS6237847A (en) | Manufacture of fluorescent lamp | |
| JP2003151438A (en) | Manufacturing method for discharge lamp | |
| JP2652813B2 (en) | Discharge lamp | |
| JP2000348675A (en) | Fluorescent lamp and lighting system | |
| JP3344021B2 (en) | Cold cathode low pressure discharge lamp | |
| JPH03208251A (en) | Chipless discharge tube | |
| JPH10326592A (en) | Multiple tube type fluorescent lamp and lighting system | |
| JPS63164142A (en) | Manufacture of chipless fluorescent lamp and device therefor | |
| JPH1083793A (en) | High pressure discharge lamp and lighting system | |
| JP2004227970A (en) | Manufacturing method of sealing metal foil and high pressure discharge lamp | |
| JPH11195401A (en) | Discharge lamp | |
| JPS63218146A (en) | Discharge lamp | |
| JP2003092081A (en) | Short arc type very high pressure discharge lamp | |
| JP2007149385A (en) | High pressure discharge lamp, image projector | |
| JP2001291488A (en) | Double ring fluorescent lamp | |
| JPH09283081A (en) | Cold cathode low pressure mercury vapor discharge lamp, display device and lighting system | |
| JP2003217512A (en) | Low pressure mercury vapor discharge lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080724 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090724 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |