JP3485171B2 - Arc tube and metal halide lamp for metal halide lamp - Google Patents
Arc tube and metal halide lamp for metal halide lampInfo
- Publication number
- JP3485171B2 JP3485171B2 JP2000079164A JP2000079164A JP3485171B2 JP 3485171 B2 JP3485171 B2 JP 3485171B2 JP 2000079164 A JP2000079164 A JP 2000079164A JP 2000079164 A JP2000079164 A JP 2000079164A JP 3485171 B2 JP3485171 B2 JP 3485171B2
- Authority
- JP
- Japan
- Prior art keywords
- arc tube
- metal halide
- lamp
- halide lamp
- 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 - Fee Related
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- Luminescent Compositions (AREA)
- Discharge Lamp (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、メタルハライドラ
ンプに関する。TECHNICAL FIELD The present invention relates to a metal halide lamp.
【０００２】[0002]
【従来の技術】現在、透光性セラミック発光管を用いた
メタルハライドランプで使用されている代表的な封入物
系とて、ディスプロシウム（Ｄｙ）、ツリウム（Ｔ
ｍ）、ホルミウム（Ｈｏ）系がある。2. Description of the Related Art Dysprosium (Dy) and thulium (T) are typical enclosure systems currently used in metal halide lamps using translucent ceramic arc tubes.
m) and holmium (Ho).
【０００３】[0003]
【発明が解決しようとする課題】これら封入物系のラン
プでは、点灯時間とともにハロゲンが遊離してランプ電
圧が上昇し、最終的には立ち消えが発生する。とくに低
始動電圧形メタルハライドランプでは、無負荷電圧が２
００Ｖの水銀灯用安定器で点灯させられるため、始動し
にくく、かつ立ち消えしやすいなどの問題があった。In these lamps of the enclosure type, halogen is liberated and the lamp voltage rises with the lighting time, and eventually the lamp goes out. Especially in the low starting voltage type metal halide lamp, the no-load voltage is 2
Since it is turned on by the ballast for mercury lamps of 00V, there are problems that it is difficult to start and it easily goes out.
【０００４】また、透光性セラミック発光管を用いたメ
タルハライドランプでは、石英ガラス製より耐熱性が高
いことを利用して発光管寸法を小型にして、発光管内の
封入物の蒸気圧が高くなるように設計して高効率が求め
られる。このためランプの管壁負荷が大きくなり点灯経
過中の光束維持率の低下が大きく、寿命が短いことなど
も問題であった。Further, in the metal halide lamp using the translucent ceramic arc tube, the size of the arc tube is made small by utilizing its higher heat resistance than that of quartz glass, and the vapor pressure of the filling material in the arc tube becomes high. Designed to be highly efficient. For this reason, the load on the tube wall of the lamp is increased, the luminous flux maintenance rate is greatly reduced during lighting, and the life is short.
【０００５】本発明は、上記問題を解決するためになさ
れたもので、ハロゲンの遊離を防ぎ、ランプ電圧上昇を
少なくして立ち消えを防止すること、水銀灯用安定器で
点灯させても容易に始動して立ち消えせず、安定に放電
が維持されるようにすること、光束維持率の低下を小さ
くし、長寿命で安定な特性を有するようにすることを目
的とする。The present invention has been made in order to solve the above-mentioned problems. It prevents halogen from being released, prevents the lamp from extinguishing by reducing a rise in the lamp voltage, and easily starts even when the lamp is turned on by a mercury lamp ballast. The purpose of the present invention is not to extinguish, but to maintain stable discharge, to reduce the decrease in the luminous flux maintenance factor, and to have a long life and stable characteristics.
【０００６】[0006]
【課題を解決するための手段】本願発明は、両端に電極
を備えた透光性セラミック発光管内にハロゲン化ディス
プロシウムが封入された、ランプ電力が２００Ｗ以上の
メタルハライドランプ用発光管であって、透光性セラミ
ック発光管内にアルゴンガスが４．５ｋＰa以上封入さ
れていることを特徴とするものである。DISCLOSURE OF THE INVENTION The present invention is an arc tube for a metal halide lamp having a lamp power of 200 W or more, in which dysprosium halide is enclosed in a translucent ceramic arc tube having electrodes on both ends. The light-transmitting ceramic arc tube is filled with argon gas of 4.5 kPa or more.
【０００７】このように、アルゴンガス圧を高くするこ
とによって、発光管からの不純物の影響が抑制され、消
灯電圧の上昇を抑制することが可能となり、アルゴンガ
ス圧を４．５ｋＰａ以上とすることにより、ランプ点灯
電源の電圧変動範囲５％以内での安定した点灯が可能と
なり、標準的な規格の電源を用いても立ち消えを起こさ
ないようにすることが可能になる。そして、より好まし
くは、アルゴンガス圧を６．６５ｋＰa以上とするのが
良く、このようにすることによって電圧変動範囲が１０
％となっても立ち消えを起こさないようにすることが可
能となり、水銀灯用安定器で点灯させた場合にも安定し
た点灯が可能となる。As described above, by increasing the argon gas pressure, the influence of impurities from the arc tube can be suppressed, and it is possible to suppress the increase of the turn-off voltage, and the argon gas pressure should be 4.5 kPa or more. As a result, stable lighting can be performed within the voltage fluctuation range of the lamp lighting power supply of 5%, and it is possible to prevent the lamp from being extinguished even if a standard power supply is used. And, more preferably, the argon gas pressure is set to 6.65 kPa or more, and by doing so, the voltage fluctuation range is 10
Even if it becomes%, it becomes possible to prevent the lamp from disappearing, and it becomes possible to perform stable lighting even when the lamp is turned on by a mercury lamp ballast.
【０００８】また、本願発明は、両端に電極を備えた透
光性セラミック発光管内にハロゲン化ディスプロシウム
が封入された、ランプ電力が２００Ｗ以上のメタルハラ
イドランプ用発光管であって、透光性セラミック発光管
内にハロゲン化セシウムが発光管内容積あたり０．５mg
/cc以上封入されていることを特徴とするものである。Further, the present invention is an arc tube for a metal halide lamp having a lamp power of 200 W or more, in which dysprosium halide is enclosed in a translucent ceramic arc tube having electrodes at both ends. Cesium halide in the ceramic arc tube is 0.5mg per volume of the arc tube
It is characterized in that it is enclosed over / cc.
【０００９】このように、上記発光管内にハロゲン化セ
シウムを発光管内容積あたり０．５mg/cc以上封入する
ことにより、ランプ電圧の上昇を抑制でき、アルゴンガ
ス圧を高くするのと同様に立ち消えを防止する事が可能
となる。そして、この作用は、アルゴンガス圧を高くす
ることの作用と重ねて生じさせることが可能であるた
め、アルゴンガスを上記のように所定圧以上封入し、ハ
ロゲン化セシウムを上記所定量以上封入するのがより好
ましい。なお、ハロゲン化セシウムの封入量による電圧
上昇の抑制効果は、０．５mg/ccの添加量以上で顕著に
その効果が現れる。As described above, by encapsulating cesium halide in an amount of 0.5 mg / cc or more per volume of the arc tube in the arc tube, an increase in the lamp voltage can be suppressed, and the lamp can be extinguished similarly to increasing the argon gas pressure. It is possible to prevent it. Since this action can be caused to overlap with the action of increasing the argon gas pressure, the argon gas is sealed at a predetermined pressure or more and the cesium halide is sealed at the predetermined amount or more as described above. Is more preferable. The effect of suppressing the voltage increase due to the amount of cesium halide enclosed is remarkably exhibited at an added amount of 0.5 mg / cc or more.
【００１０】また、上記発光管内に金属ホルミウムを封
入することにより、遊離ハロゲンによる電圧の上昇を低
減することが可能となるため、上記のような封入物構成
の発光管内にさらに金属ホルミウムを封入することによ
り、より安定した点灯の可能な発光管とすることが可能
となるので好ましい。Further, by encapsulating metallic holmium in the above-mentioned arc tube, it is possible to reduce the increase in voltage due to free halogen, so that metallic holmium is further enclosed in the arc tube having the above-mentioned enclosure structure. This makes it possible to provide a more stable lighting arc tube, which is preferable.
【００１１】本願発明のメタルハライドランプは、上記
のようなメタルハライドランプ用発光管が外球内に支持
され、該メタルハライドランプ用発光管に接するように
始動用の補導体が設けられていることを特徴とするもの
であり、このような構成とすることにより、低電圧での
始動が可能で、立ち消えの生じにくい安定した放電が維
持されるメタルハライドランプが実現される。The metal halide lamp of the present invention is characterized in that the above-described metal halide lamp arc tube is supported in the outer bulb, and a starting auxiliary conductor is provided so as to be in contact with the metal halide lamp arc tube. With such a configuration, it is possible to realize a metal halide lamp that can be started at a low voltage and that maintains stable discharge that is unlikely to extinguish.
【００１２】 さらに、上記メタルハライドランプにお
いては、透光性セラミック発光管の極間長をＬ、内径を
Ｒ、ランプ電力をＷとし、管壁負荷をＦ＝Ｗ／（πＲ
Ｌ）と定義したとき、管壁負荷Ｆが
−０．００６７Ｗ＋４０≧Ｆ≧−０．０２Ｗ＋３０(ワ
ット/ｃｍ２)
の範囲内となるようにメタルハライドランプの点灯条件
を設定するのが好ましく、これにより、光束維持率の低
下を小さくし、長寿命で安定なランプを実現することが
できる。そして、高圧水銀灯用安定器で点灯しても放電
が安定し寿命特性に優れた、低始動電圧形メタルハライ
ドランプが実現可能となる。Further, in the above metal halide lamp, the interelectrode length of the translucent ceramic arc tube is L, the inner diameter is R, the lamp power is W, and the tube wall load is F = W 2 / (πR
L), it is preferable to set the lighting condition of the metal halide lamp such that the tube wall load F is within the range of −0.0067W + 40 ≧ F ≧ −0.02W + 30 (watt / cm 2 ). It is possible to realize a stable lamp with a long life by reducing the decrease in the luminous flux maintenance factor. Further, it is possible to realize a low starting voltage type metal halide lamp that has stable discharge even when it is lit by a ballast for a high pressure mercury lamp and has excellent life characteristics.
【００１３】[0013]
【発明の実施の形態】図１は、本願発明の一実施形態を
示すメタルハライドランプ用発光管の概略構成断面図、
図２はこのメタルハライドランプ用発光管を用いた本願
発明の一実施形態を示すメタルハライドランプの概略構
成断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic sectional view of an arc tube for a metal halide lamp showing an embodiment of the present invention.
FIG. 2 is a schematic structural sectional view of a metal halide lamp showing an embodiment of the present invention using the arc tube for the metal halide lamp.
【００１４】本実施形態の発光管は、透光性アルミナ管
からなり、中央部の太管１１１とその両端に取り付けら
れた細管１２とから構成されている。細管１２の発光管
外側端部における内部には電極極芯２１に接続した電気
導入体を構成する第１の金属（Ｍo）２４と第２の金属
（Ｎb）２７及びセラミックスリーブ３０が封着ガラス
４０により気密的に固定されている。電極極芯（Ｗ）に
は第１コイル２０と第２コイル２２が巻き付けてある。
また、２５及び２６でそれぞれの金属が突き合わせ溶接
してある。The arc tube of this embodiment is made of a translucent alumina tube, and is composed of a thick tube 111 in the central portion and thin tubes 12 attached to both ends thereof. A first metal (Mo) 24, a second metal (Nb) 27, and a ceramic sleeve 30 which form an electric introducer connected to the electrode pole core 21 are sealed inside the thin tube 12 at the outer end of the arc tube. It is fixed airtightly by 40. A first coil 20 and a second coil 22 are wound around the electrode pole core (W).
Also, at 25 and 26, the respective metals are butt welded.
【００１５】本実施形態のメタルハライドランプ、外球
１内に発光管１１が金属棒２により支持されて構成され
ている。金属棒２は、発光管１１の片方の電極に電気を
送る役割も兼ねており、３はパルス電圧を発生させる始
動器、４はゲッター、５は口金、８は始動を容易にする
ための金属線が発光管に接するように沿わせられてなる
補導体である。The metal halide lamp according to the present embodiment has an arc tube 11 supported by a metal rod 2 in an outer bulb 1. The metal rod 2 also serves to send electricity to one electrode of the arc tube 11, 3 is a starter for generating a pulse voltage, 4 is a getter, 5 is a base, and 8 is a metal for facilitating starting. It is a supplementary conductor that is arranged so that the wire contacts the arc tube.
【００１６】下記表１、２に発光管の試作例仕様を示
す。表１は、発光管１１内に沃化ホルミウム、沃化ツリ
ウム、沃化ディスプロシウム、沃化ナトリウム、沃化タ
リウム、沃化セシウム、金属ホルミウム、水銀アルゴン
ガス、などの封入割合を変化させた２２０Ｗ発光管の封
入物仕様を示す。なお、発光管仕様１２は３６０Ｗ発光
管の仕様である。また、これら発光管についてのランプ
仕様については、下記表２に示す仕様１５と同じであ
る。Tables 1 and 2 below show specifications of prototypes of arc tubes. Table 1 shows that the filling ratio of holmium iodide, thulium iodide, dysprosium iodide, sodium iodide, thallium iodide, cesium iodide, metal holmium, mercury argon gas, etc. in the arc tube 11 was changed. The specifications of the 220 W arc tube enclosure are shown. The arc tube specification 12 is a 360 W arc tube specification. The lamp specifications for these arc tubes are the same as specification 15 shown in Table 2 below.
【００１７】表２は、最適な封入物仕様（ランプ仕様
４）を有する２２０Ｗ、３６０Ｗ寸法の発光管を用いた
ランプ仕様を示し、発光管の管壁負荷をランプ電力で変
化させたことと、補導体の有無を示した仕様である。な
お、ランプ電力２２０Ｗの発光管寸法は電極間距離が１
８ｍｍ、発光管内径１３ｍｍ、発光管内容積２.５４cc
である。ランプ電力３６０Ｗは電極間距離が２３ｍｍ、
発光管内径１６ｍｍ、発光管内容積５.２０ccである。Table 2 shows the lamp specifications using the 220 W and 360 W sized arc tubes having the optimum enclosure specifications (lamp specifications 4), in which the tube wall load of the arc tubes was changed by the lamp power. This is a specification indicating the presence or absence of a complementary conductor. Note that the size of the arc tube with a lamp power of 220 W is such that the distance between the electrodes is 1
8 mm, arc tube inner diameter 13 mm, arc tube inner volume 2.54 cc
Is. Lamp power 360W, the distance between electrodes is 23mm,
The inner diameter of the arc tube is 16 mm, and the internal volume of the arc tube is 5.20 cc.
【００１８】[0018]
【表１】 [Table 1]
【表２】
これらのランプを試作して寿命試験を行った。点灯条件
としてはそれぞれ２２０Ｗまたは３６０Ｗで、３０００
時間行った。セラミック製発光管は耐熱性が高く効率を
上げるため発光管寸法を小さく設計している。このため
不純物の影響が大きい。始動用のアルゴンガス圧を高め
ると影響が小さくなり、再点弧電圧を抑える働きがあ
る。[Table 2] These lamps were prototyped and a life test was conducted. The lighting conditions are 220 W and 360 W, respectively, and 3000
I went on time. The ceramic arc tube has a high heat resistance and is designed to have a small arc tube size in order to increase efficiency. Therefore, the influence of impurities is large. Increasing the argon gas pressure for starting reduces the effect and has the function of suppressing the re-ignition voltage.
【００１９】図３は２２０Ｗランプにおいて金属Ｈｏを
添加しかつ沃化セシウムの封入量とアルゴンガス圧とを
変化させたときの３０００時間点灯後消灯電圧を高圧水
銀灯用安定器を使って調べた結果を示す図である。FIG. 3 shows a result of examining the extinction voltage after lighting for 3000 hours by using a ballast for a high-pressure mercury lamp when metal Ho was added to a 220 W lamp and the enclosed amount of cesium iodide and the argon gas pressure were changed. FIG.
【００２０】点灯経過中遊離ハロゲン等によるランプ電
圧の上昇は金属Ｈｏで抑制され、電離電圧の低いセシウ
ムを、発光管内容積あたり０.５mg/cc以上を添加するこ
とで、ランプ電圧の上昇を防止でき、アルゴン圧が６.
６５ｋＰa以上で消灯電圧は１８０Ｖ以下となり２００
Ｖ電源での電圧変動範囲の１８０Ｖになっても立ち消え
しない。６.６５ｋＰaより低い場合は不純物の影響のた
め消灯電圧は１８０Ｖを超えてしまう。このように金属
Ｈｏ添加と沃化セシウムの封入量とアルゴンガス圧を工
夫することで、立ち消え防止に効果があり長時間点灯に
わたって安定に放電維持する働きがあることがわかる。The increase in lamp voltage due to free halogen, etc. during the course of lighting is suppressed by metal Ho, and the increase in lamp voltage is prevented by adding cesium with a low ionization voltage of 0.5 mg / cc or more per arc tube inner volume. Yes, with an argon pressure of 6.
Extinguishing voltage is less than 180V below 65kPa 200
It does not disappear even when the voltage fluctuation range of the V power supply reaches 180V. When it is lower than 6.65 kPa, the turn-off voltage exceeds 180 V due to the influence of impurities. Thus, it is understood that by adding metal Ho, encapsulating the amount of cesium iodide, and the argon gas pressure, there is an effect of preventing extinguishment and a function of maintaining stable discharge over a long period of lighting.
【００２１】さらに、図１に示したごとくセラミック製
の発光管に通常の始動器のほかに、一方の電極と同じ供
給源に接続した金属線を発光管に沿わせて対向電極付近
の外表面で結着した補導体８を採用することで、図４に
示すように始動電圧を低くする効果があり、補導体８が
なければ始動電圧は２００Ｖを超えるため水銀灯用安定
器で点灯できないことがわかる。Further, as shown in FIG. 1, in addition to a usual starter for a ceramic arc tube, a metal wire connected to the same supply source as one electrode is provided along the arc tube to the outer surface near the counter electrode. By adopting the auxiliary conductor 8 bonded in step 1, there is an effect of lowering the starting voltage as shown in FIG. 4, and without the auxiliary conductor 8, the starting voltage exceeds 200 V, so that it cannot be lit by the mercury lamp ballast. Recognize.
【００２２】図５は管壁負荷を変化させたときの１０時
間点灯後のランプ発光効率と３０００時間点灯後の光束
維持率を示す。負荷が−０.００６７Ｗ＋４０を超える
と発光管の温度が上がりすぎて光束維持率は急激に低下
してくる。逆に負荷が−０.０２Ｗ＋３０未満になると
発光管の温度が上がらず封入物の蒸発が十分に上昇でき
ず、発光効率が悪くなる。このように最適負荷は発光管
の発熱部分である極間長と冷却部分である表面積の比率
が異なってくるためランプ電力によって変化し、電力の
大きいランプほど最適負荷は小さくなる。FIG. 5 shows the luminous efficiency of the lamp after 10 hours of lighting and the luminous flux maintenance rate after 3000 hours of lighting when the tube wall load was changed. When the load exceeds -0.0067W + 40, the temperature of the arc tube rises too much, and the luminous flux maintenance factor drops sharply. On the other hand, when the load is less than -0.02 W + 30, the temperature of the arc tube does not rise, the evaporation of the enclosed material cannot be sufficiently increased, and the luminous efficiency deteriorates. As described above, the optimum load changes depending on the lamp power because the ratio of the interelectrode length, which is the heat generating portion of the arc tube, and the surface area, which is the cooling portion, varies, and the optimum load decreases as the lamp power increases.
【００２３】[0023]
【発明の効果】本発明の発光管によれば、立ち消えのな
い、安定した放電が維持される放電管の製造が可能とな
り、この発光管を用いたランプによれば、低い始動電圧
で点灯でき立ち消えせず、安定に放電が維持されるメタ
ルハライドランプが実現でき、さらに、光束維持率の低
下が小さく、長寿命で安定な特性を有するメタルハライ
ドランプが実現できる。そして、水銀灯用安定器で容易
に始動できて、寿命末期まで立ち消えせず安定に放電維
持する低始動電圧形メタルハライドランプが実現でき
る。According to the arc tube of the present invention, it is possible to manufacture a discharge tube which does not extinguish and maintains a stable discharge, and a lamp using this arc tube can be lit at a low starting voltage. A metal halide lamp that does not extinguish and that maintains stable discharge can be realized, and further, a metal halide lamp that has a small decrease in luminous flux maintenance rate, has a long life, and has stable characteristics can be realized. Further, it is possible to realize a low starting voltage type metal halide lamp that can be easily started with a ballast for mercury lamps and that does not go out until the end of its life and that maintains stable discharge.
【図１】本発明に係るメタルハライドランプ用発光管を
示す縦断面図である。FIG. 1 is a vertical sectional view showing an arc tube for a metal halide lamp according to the present invention.
【図２】本発明に係るメタルハライドランプの全体を示
す縦断面図である。FIG. 2 is a vertical cross-sectional view showing the entire metal halide lamp according to the present invention.
【図３】アルゴン圧とＣsＩ量と消灯電圧の関係を示す
図である。FIG. 3 is a diagram showing a relationship between an argon pressure, a CsI amount, and a turn-off voltage.
【図４】補導体の有無と始動電圧の関係を示す図であ
る。FIG. 4 is a diagram showing the relationship between the presence or absence of a complementary conductor and the starting voltage.
【図５】発光効率と光束維持率と管壁負荷の関係を示す
図である。FIG. 5 is a diagram showing a relationship between luminous efficiency, luminous flux maintenance factor, and tube wall load.
１：外球 ２：金属棒 ３：始動器 ４：ゲッター ５：口金 ８：補導体 １１：発光管 １１１：太管 １２：細管 ２１：電極極芯 ２４：第一の金属 ２７：第二の金属 ３０：セラミックスリーブ ４０：封着ガラス ２０：第一コイル ２２：第二コイル 1: Outer sphere 2: Metal rod 3: Starter 4: Getter 5: Base 8: auxiliary conductor 11: arc tube 111: Thick pipe 12: Capillary 21: Electrode core 24: First metal 27: Second metal 30: Ceramic sleeve 40: Sealing glass 20: First coil 22: Second coil
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平９−171797（ＪＰ，Ａ) 特開 平７−272677（ＪＰ，Ａ) 特開 平10−144258（ＪＰ，Ａ) 特開 平１−294344（ＪＰ，Ａ) 特開 平10−326596（ＪＰ，Ａ) 特開 平７−169440（ＪＰ，Ａ) 特開 平４−282774（ＪＰ，Ａ) 特開 昭57−152662（ＪＰ，Ａ) 特開 昭59−112564（ＪＰ，Ａ) 特開 昭63−281343（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01J 61/16 H01J 61/20 H01J 61/30 H01J 61/54 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-9-171797 (JP, A) JP-A-7-272677 (JP, A) JP-A-10-144258 (JP, A) JP-A-1- 294344 (JP, A) JP 10-326596 (JP, A) JP 7-169440 (JP, A) JP 4-282774 (JP, A) JP 57-152662 (JP, A) JP-A-59-112564 (JP, A) JP-A-63-281343 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01J 61/16 H01J 61/20 H01J 61/30 H01J 61/54
Claims (3)
管内にハロゲン化ディスプロシウムが封入され、ランプ
電力が２００Ｗ以上のメタルハライドランプ用発光管で
あって、前記透光性セラミック発光管の極間長をＬ、内
径をＲ、ランプ電力をＷとし、管壁負荷をＦ＝Ｗ／（π
ＲＬ）と定義したとき、管壁負荷Ｆが −０．００６７Ｗ＋４０≧Ｆ≧−０．０２Ｗ＋３０ ( ワ
ット / ｃｍ２ ) の範囲内となるように設定するとともに、前記透光性セ
ラミック発光管内にはアルゴンガスが４．５ｋＰａ以上
封入されていることを特徴とするメタルハライドランプ
用発光管。1. A translucent ceramic light emitting device having electrodes on both ends.
Dysprosium halide is enclosed in the tube,
With arc tube for metal halide lamp with power of 200W or more
And the inter-electrode length of the translucent ceramic arc tube is L,
Let R be the diameter, W be the lamp power, and F = W / (π
RL), the tube wall load F is -0.0067W + 40 ≧ F ≧ −0.02W + 30 ( W
Tsu DOO / cm @ 2) with a set to be within the scope of the arc tube for a metal halide lamp, wherein the translucent ceramic arc tube, characterized in that the argon gas is sealed above 4.5 kPa.
発光管を外管内に支持し、前記メタルハライドランプ用
発光管に接するように始動用の補導体が設けられている
ことを特徴とするメタルハライドランプ。 2. A metal halide lamp according to claim 1.
For the metal halide lamp that supports the arc tube inside the outer tube
A starting conductor is provided so as to contact the arc tube.
A metal halide lamp characterized by that.
と並列に始動器が接続され、水銀灯用安定器で点灯する
ことを特徴とする請求項２に記載のメタルハライドラン
プ。 3. An arc tube for a metal halide lamp in the outer tube.
The starter is connected in parallel with and is turned on by the ballast for mercury lamps.
The metal halide run according to claim 2, wherein
Pu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000079164A JP3485171B2 (en) | 2000-03-21 | 2000-03-21 | Arc tube and metal halide lamp for metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000079164A JP3485171B2 (en) | 2000-03-21 | 2000-03-21 | Arc tube and metal halide lamp for metal halide lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001266791A JP2001266791A (en) | 2001-09-28 |
| JP3485171B2 true JP3485171B2 (en) | 2004-01-13 |
Family
ID=18596455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000079164A Expired - Fee Related JP3485171B2 (en) | 2000-03-21 | 2000-03-21 | Arc tube and metal halide lamp for metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3485171B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005259691A (en) * | 2004-02-12 | 2005-09-22 | Japan Storage Battery Co Ltd | Ceramic metal halide lamp, and illumination device |
| CN1918687A (en) * | 2004-02-12 | 2007-02-21 | 株式会社杰士汤浅 | Ceramic metal halide lamp, and its usage method,and illumination device |
-
2000
- 2000-03-21 JP JP2000079164A patent/JP3485171B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001266791A (en) | 2001-09-28 |
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