JPH0732002B2 - Metal vapor discharge lamp - Google Patents
Metal vapor discharge lampInfo
- Publication number
- JPH0732002B2 JPH0732002B2 JP61119381A JP11938186A JPH0732002B2 JP H0732002 B2 JPH0732002 B2 JP H0732002B2 JP 61119381 A JP61119381 A JP 61119381A JP 11938186 A JP11938186 A JP 11938186A JP H0732002 B2 JPH0732002 B2 JP H0732002B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- vapor discharge
- metal vapor
- metal halide
- arc 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 - Lifetime
Links
Landscapes
- Discharge Lamp (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は瞬時点灯を可能とした金属蒸気放電灯に関する
ものである。TECHNICAL FIELD The present invention relates to a metal vapor discharge lamp capable of instantaneous lighting.
（従来の技術） 従来、発光管の両端に少なくとも一対の主電極を設け、
水銀及び金属ハロゲン化物と稀ガスを封入してなる金属
蒸気放電灯は公知である。この種の放電灯は始動させて
から安定した光束を得るまでに数分間を要している。こ
の立上り時間を短縮するために、数々の方法が採られて
いる。(Prior Art) Conventionally, at least a pair of main electrodes are provided at both ends of an arc tube,
A metal vapor discharge lamp in which mercury and a metal halide and a rare gas are enclosed is known. This type of discharge lamp requires several minutes after starting to obtain a stable luminous flux. A number of methods have been adopted to reduce this rise time.
一つは稀ガスとしてバッファ効果のあるキセノンガスを
多量に封入して、初期からランプ電圧を高くしておくよ
うにしたものである（特開昭57−5257号） また、タリウムと水銀をアマルガム化して利用する方法
も提案されている（特公昭50−17799号、特公昭49−467
95号）。One is to fill a large amount of xenon gas, which has a buffer effect as a rare gas, to keep the lamp voltage high from the beginning (JP-A-57-5257). Also, thallium and mercury are amalgams. A method of converting the data into a form and using it has also been proposed (Japanese Patent Publication No. 50-17799 and Japanese Patent Publication No. 49-467).
No. 95).
（発明が解決しようとする問題点） 前記のキセノンガスを多量封入する方法は、アーク長が
短い小型の放電灯では、キセノンを多量封入してもラン
プ電圧を高くすることができないか或はほとんど効果が
認められない問題点があった。(Problems to be Solved by the Invention) In the method of encapsulating a large amount of xenon gas, in a small discharge lamp having a short arc length, even if encapsulating a large amount of xenon, the lamp voltage cannot be made high or almost no. There was a problem that the effect was not recognized.
又、タリウムと水銀をアマルガム化して利用する方法
は、発光管内にメタルハライドを封入する場合、タリウ
ムがハライド化するので添加物のバランスが大きく変わ
ってしまうので採用できない問題点があった。Further, the method of using thallium and mercury as amalgam has a problem that when the metal halide is enclosed in the arc tube, thallium is converted into a halide and the balance of the additives is greatly changed, so that it cannot be adopted.
本発明は発光管内径とアーク長が比較的近似している小
型のメタルハライドランプの瞬時点灯を可能とすること
を目的としている。An object of the present invention is to enable instant lighting of a small metal halide lamp whose arc length and arc length are relatively close to each other.
（問題点を解決するための手段） 本発明の金属蒸気放電灯は、発光管の内容積V1に対し、
デイスプロシウム、セシウム、タリウムのうち少なくと
も１つを含む金属ハロゲン化物の体積V2としたとき ２×10-3≦V2／V1≦１×10-1 （ただし、V1 ≦1.00cc） で封入してあることを特徴としている。(Means for Solving the Problems) The metal vapor discharge lamp of the present invention has an internal volume V 1 of the arc tube,
Volume of metal halide containing at least one of dysprosium, cesium and thallium is V 2 2 × 10 -3 ≤V 2 / V 1 ≤1 × 10 -1 (however, V 1 ≤1.00cc) It is characterized by being enclosed in.
（作用） 第１図に示した如く、石英チューブ１の両端に主電極2.
2を封着し、内部にはメタルハライドを封入してなる金
属蒸気放電灯３にヨウ化ディスプロシウム（DyI3）、ヨ
ウ化タリウム（TlI）、ヨウ化セシウム（CsI）のうち少
なくとも１つを含む金属ハロゲン化物を封入して、瞬時
立止まり時間を測定した所第２図のような結果であっ
た。(Operation) As shown in FIG. 1, the main electrodes 2.
At least one of dysprosium iodide (DyI 3 ), thallium iodide (TlI), and cesium iodide (CsI) is attached to the metal vapor discharge lamp 3 in which 2 is sealed and a metal halide is sealed inside. When the metal halide containing was enclosed and the instantaneous stop time was measured, the result was as shown in FIG.
尚、前記石英チューブ１は、内径の最大径が5.5mmφ、
外径の最大径が7.0mmφであり、ほぼ球型の発光管であ
る。内容積は約0.1ccである。放電灯のアーク長は5.0m
m、ランプ電力は40Wである。封入した金属ハロゲン化物
は、ヨウ化ディスプロシウムの比重3.3、ヨウ化タリウ
ムの比重7.1、ヨウ化セシウムの比重4.5として夫々体積
を計算した。The quartz tube 1 has a maximum inner diameter of 5.5 mmφ,
The maximum outer diameter is 7.0 mmφ, which is a nearly spherical arc tube. The internal volume is about 0.1cc. Arc length of discharge lamp is 5.0m
m, lamp power is 40W. The volume of the encapsulated metal halide was calculated as 3.3 for dysprosium iodide, 7.1 for thallium iodide, and 4.5 for cesium iodide.
第２図から判る様に、発光管１の内容積に対して金属ハ
ロゲン化物の封入比率が増えるに従って、瞬時点灯性が
向上する。As can be seen from FIG. 2, the instantaneous lighting property is improved as the encapsulation ratio of the metal halide to the inner volume of the arc tube 1 is increased.
金属ハロゲン化物の封入比率が10％を超えると、アーク
が立消えたり、例え立消えなくてもアーク揺れを起すな
どアークの安定性が著しく悪くなる。この領域を、アー
ク不安定域１として、図中に斜線を施した。If the encapsulation ratio of metal halide exceeds 10%, the arc will be extinguished, or even if it does not extinguish, it will sway, and the stability of the arc will be significantly degraded. This region is defined as an arc unstable region 1 and is shaded in the figure.
又、金属ハロゲン化物の封入比率が0.2％を下回ると、
放電灯の安定時の70％の拘束を得るまでに１分以上を要
するばかりか、安定時の発光効率や演色性も劣り、良好
な放電灯を得ることはできない。この領域を効率低下領
域IIとして、図中に斜線を施した。If the encapsulation ratio of metal halide is less than 0.2%,
It takes not less than 1 minute to obtain the 70% constraint when the discharge lamp is stable, and the emission efficiency and color rendering properties when stable are poor, and a good discharge lamp cannot be obtained. This area is designated as efficiency reduction area II and is shaded in the figure.
結局、金属ハロゲン化物の封入量を発光管１の内容積V1
に対して0.2％以上、10％以下とすると、アークの安定
性が得られると共に、発光効率、演色性の低下を越すこ
とがなく、１分以内で安定時の70％の拘束が得られる瞬
時点灯可能な放電灯を得ることができる。After all, the enclosed amount of the metal halide is set to the inner volume V 1 of the arc tube 1.
If the ratio is 0.2% or more and 10% or less, arc stability is obtained, and at the same time, 70% restraint at the time of stability is obtained within 1 minute without deterioration of luminous efficiency and color rendering. A discharge lamp that can be turned on can be obtained.
（実施例１） 内容積0.08cc、アーク長5.0mm最大内径5.1mmφのほぼ球
状の発光管内に、水銀1.8mgアルゴン150Torrと共に、ヨ
ウ化ディスプロシウム5mg、ヨウ化セシウム1.4mgおよび
ヨウ化タリウム1.2mgを封入した。封入比率は2.7％であ
る。(Example 1) In a substantially spherical arc tube having an inner volume of 0.08 cc, an arc length of 5.0 mm and a maximum inner diameter of 5.1 mmφ, mercury dysprosium iodide 5 mg, cesium iodide 1.4 mg and thallium iodide 1.2 were added together with mercury 1.8 mg and argon 150 Torr. mg was included. The encapsulation ratio is 2.7%.
この発光管を、内径30mmφ、長さ70mmの硬質ガラスの外
球内に真空封止して、安定時約40Wの放電灯とした。This arc tube was vacuum-sealed in an outer bulb made of hard glass having an inner diameter of 30 mmφ and a length of 70 mm to obtain a discharge lamp of about 40 W when stable.
瞬時点灯性をテストした所、安定時の70％の拘束が得ら
れる時間は約23秒であった。安定時の特製はランプ電圧
78V、全拘束2300lm、色温度5400°Ｋ、Ra.88で良好であ
った。When the instantaneous lighting property was tested, the time for obtaining 70% restraint when stable was about 23 seconds. Lamp voltage is a special product when stable
It was good at 78V, total restraint 2300lm, color temperature 5400 ° K, and Ra.88.
（実施例２） 前記実施例と同様な発光管内に、水銀1.6mgアルゴン150
Torrと共に、ヨウ化ディスプロシウム10mg、ヨウ化セシ
ウム2.8mgおよびヨウ化タリウム2.4mgを封入した。封入
比率は5.4％である。(Example 2) Mercury 1.6 mg Argon 150
Together with Torr, dysprosium iodide 10 mg, cesium iodide 2.8 mg and thallium iodide 2.4 mg were encapsulated. The encapsulation ratio is 5.4%.
この発光管で構成した放電灯の瞬時点灯性は、70％の拘
束が得られる時間で18秒であった。ランプ安定時の特性
は、ランプ電圧85V、全拘束2100lm、色温度4600°Ｋ、R
a92で良好であった。The instantaneous lighting property of the discharge lamp composed of this arc tube was 18 seconds when the constraint of 70% was obtained. The characteristics when the lamp is stable are: lamp voltage 85V, total restraint 2100lm, color temperature 4600 ° K, R
It was good at a92.
（発明の効果） 以上に説明した通り、本発明によれば、小型の金属蒸気
放電灯の瞬時点灯性を向上できる効果がある。この結
果、この種のランプを一般照明様にも使用可能とできる
効果もある。(Effects of the Invention) As described above, according to the present invention, there is an effect that the instantaneous lighting property of a small-sized metal vapor discharge lamp can be improved. As a result, there is also an effect that this type of lamp can be used for general lighting.
第１図はこの発明の実施する小型の金属蒸気放電灯の断
面図、第２図は金属ハロゲン化物の封入比率と点灯時間
の関係を示す図である。 １……石英チューブ、２……主電極 ３……金属蒸気放電灯FIG. 1 is a sectional view of a small-sized metal vapor discharge lamp according to the present invention, and FIG. 2 is a diagram showing a relationship between a metal halide filling ratio and a lighting time. 1 ... Quartz tube, 2 ... Main electrode 3 ... Metal vapor discharge lamp
Claims (1)
設け、水銀及び金属ハロゲン化物と稀ガスを封入してな
る金属蒸気放電灯において、前記発光管の内容積V1に対
しデイスプロシウム、セシウム、タリウムのうち少なく
とも１つを含む金属ハロゲン化物の体積をV2としたとき ２×10-3≦V2／V1≦１×10-1 （ただし、V1≦1.00cc） で封入してあることを特徴とする金属蒸気放電灯。1. A metal vapor discharge lamp in which at least a pair of main electrodes are provided at both ends of an arc tube and mercury and a metal halide and a rare gas are enclosed, and in the inner volume V 1 of the arc tube, dsprosium is used. The volume of a metal halide containing at least one of cesium, cesium and thallium is V 2 and enclosed by 2 × 10 -3 ≤V 2 / V 1 ≤1 × 10 -1 (provided that V 1 ≤1.00cc) A metal vapor discharge lamp characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61119381A JPH0732002B2 (en) | 1986-05-26 | 1986-05-26 | Metal vapor discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61119381A JPH0732002B2 (en) | 1986-05-26 | 1986-05-26 | Metal vapor discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62276741A JPS62276741A (en) | 1987-12-01 |
| JPH0732002B2 true JPH0732002B2 (en) | 1995-04-10 |
Family
ID=14760100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61119381A Expired - Lifetime JPH0732002B2 (en) | 1986-05-26 | 1986-05-26 | Metal vapor discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0732002B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02245749A (en) * | 1989-03-17 | 1990-10-01 | Matsushita Electric Ind Co Ltd | Projection type display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601746A (en) * | 1983-06-17 | 1985-01-07 | Toshiba Corp | Metal vapor discharge lamp |
| JPS60253141A (en) * | 1984-05-28 | 1985-12-13 | Iwasaki Electric Co Ltd | High voltage metallic vapour electric discharge lamp |
| JPS6191846A (en) * | 1984-10-09 | 1986-05-09 | ゼネラル・エレクトリツク・カンパニイ | High-efficiency arc tube for high luminous intensity discharge lamp |
-
1986
- 1986-05-26 JP JP61119381A patent/JPH0732002B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601746A (en) * | 1983-06-17 | 1985-01-07 | Toshiba Corp | Metal vapor discharge lamp |
| JPS60253141A (en) * | 1984-05-28 | 1985-12-13 | Iwasaki Electric Co Ltd | High voltage metallic vapour electric discharge lamp |
| JPS6191846A (en) * | 1984-10-09 | 1986-05-09 | ゼネラル・エレクトリツク・カンパニイ | High-efficiency arc tube for high luminous intensity discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62276741A (en) | 1987-12-01 |
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