JPH0684496A - High pressure metallic vapor electric discharge lamp - Google Patents
High pressure metallic vapor electric discharge lampInfo
- Publication number
- JPH0684496A JPH0684496A JP23658992A JP23658992A JPH0684496A JP H0684496 A JPH0684496 A JP H0684496A JP 23658992 A JP23658992 A JP 23658992A JP 23658992 A JP23658992 A JP 23658992A JP H0684496 A JPH0684496 A JP H0684496A
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- discharge lamp
- pressure
- rare gas
- mercury
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は調光時色変化を少なくす
ることが可能な金属ハロゲン化物を封入した高圧金属蒸
気放電ランプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high pressure metal vapor discharge lamp containing a metal halide capable of reducing color change during dimming.
【０００２】[0002]
【従来の技術】高圧水銀ランプの効率および演色性を一
層改善するため、発光物質として水銀のほかに金属ハロ
ゲン化物を加えたメタルハライドランプと呼ばれるラン
プがある。このメタルハライドランプは、透光性セラミ
ックスや石英ガラスからなるバルブ内に水銀と希ガスと
ＮａＩ−ＳｃＩ3 などとを一緒に封入して発光管が構成
され、屋内、屋外用の一般照明用として広く使用されて
いる。2. Description of the Related Art In order to further improve the efficiency and color rendering of a high pressure mercury lamp, there is a lamp called a metal halide lamp in which a metal halide is added as a light emitting substance in addition to mercury. This metal halide lamp is a bulb made of translucent ceramics or quartz glass, in which mercury, a rare gas, NaI-ScI 3 and the like are enclosed together to form an arc tube, which is widely used for general lighting indoors and outdoors. It is used.
【０００３】しかし、このランプは高効率で高演色性の
性能をもつが、明るさを順次変化させる調光点灯を行う
と発光色が変化し、また、始動時に短時間で光束を立ち
上げることができないという欠点がある。However, although this lamp has a high efficiency and a high color rendering property, the light emission color changes when the dimming lighting in which the brightness is sequentially changed is changed, and the luminous flux is activated in a short time at the time of starting. There is a drawback that you cannot do it.
【０００４】この短時間で光束が立ち上がらないのは、
水銀や金属ハロゲン化物が蒸発するのに時間がかかるた
めである。The reason why the luminous flux does not rise in this short time is that
This is because it takes time for mercury and metal halides to evaporate.
【０００５】また、調光が難しいのはランプ入力を変え
るとランプ内の発光物質の蒸気圧バランスがくずれて色
特性が変化してしまうからである。ＮａＩ−ＳｃＩ3 を
封入した例で説明すると、ＮａＩ、ＳｃＩ3 は蒸気圧が
低いのに対して水銀は蒸気圧が高く完全に蒸発してしま
っている。Further, the dimming is difficult because when the lamp input is changed, the vapor pressure balance of the luminescent material in the lamp is disturbed and the color characteristics are changed. Explaining with an example in which NaI-ScI 3 is enclosed, NaI and ScI 3 have a low vapor pressure, whereas mercury has a high vapor pressure and is completely evaporated.
【０００６】たとえばＮａＩ−ＳｃＩ3 −Ｈｇを封入し
たメタルハライドランプを定格の入力で点灯すると図５
のような分光分布を示す。[0006] For example, when a metal halide lamp containing NaI-ScI 3 -Hg is lit at a rated input, as shown in FIG.
Shows a spectral distribution like.
【０００７】同じこのランプを定格の半分の入力で点灯
すると図６のような分光分布となり、この図５および図
６からみると、Ｈｇ（水銀）は両者において完全に蒸発
しているのに対して、図６の場合発光管内のＮａＩ−Ｓ
ｃＩ3 の蒸気圧は発光管の温度が下がるので非常に小さ
くなる。このため、Ｎａ（ナトリウム）とＳｃ（スカン
ジウム）の発光は大幅に下がり、殆ど水銀発光のみにな
り、色特性は大幅に変わってしまい非常な違和感があ
る。When the same lamp is lit with half the rated input, the spectral distribution as shown in FIG. 6 is obtained, and as seen from FIGS. 5 and 6, Hg (mercury) is completely evaporated in both. In the case of FIG. 6, NaI-S in the arc tube
The vapor pressure of cI 3 becomes very small because the temperature of the arc tube decreases. Therefore, the light emission of Na (sodium) and Sc (scandium) is significantly reduced, and almost only mercury light emission is caused, and the color characteristics are greatly changed, which is very uncomfortable.
【０００８】水銀はランプ電圧を維持するバッファーガ
スとして使用されるが、このように水銀入りランプでは
入力を変えたとき、水銀の発光と他の発光金属（Ｎａと
Ｓｃ）との発光のバランスが変わり、このため調光がで
きない結果となる。Mercury is used as a buffer gas for maintaining the lamp voltage. In such a mercury-containing lamp, when the input is changed, the balance between the emission of mercury and the emission of other luminescent metals (Na and Sc) is achieved. The result is that dimming is not possible.
【０００９】[0009]
【発明が解決しようとする課題】この発明が解決しよう
とする問題点は，従来の高圧放電ランプでは入力を変化
させると水銀とハロゲン化物のバランスがくずれて色特
性が大きく変わり、所望の調光ができないことおよび始
動時の光束の立上がりが遅い点である。The problem to be solved by the present invention is that in the conventional high pressure discharge lamp, when the input is changed, the balance between mercury and halide is lost and the color characteristics are largely changed, so that the desired dimming is achieved. Is not possible and the rise of the luminous flux at the time of starting is slow.
【００１０】本発明は広い入力範囲で色特性の変化の少
ない調光ができるとともに始動特性のよい高圧金属蒸気
放電ランプを提供することを目的とする。It is an object of the present invention to provide a high pressure metal vapor discharge lamp which can perform dimming with little change in color characteristics in a wide input range and has good starting characteristics.
【００１１】[0011]
【課題を解決するための手段】本発明の請求項１に記載
の高圧金属蒸気放電ランプは，少なくとも一対の電極を
備えた発光管バルブ内に金属ハロゲン化物と希ガスとを
封入したことを特徴としている。A high pressure metal vapor discharge lamp according to claim 1 of the present invention is characterized in that a metal halide and a rare gas are enclosed in an arc tube bulb having at least a pair of electrodes. I am trying.
【００１２】本発明の請求項２に記載の高圧金属蒸気放
電ランプは，希ガスがキセノン、クリプトン、アルゴン
から選ばれた少なくとも一種であることを特徴としてい
る。本発明の請求項３に記載の高圧金属蒸気放電ランプ
は，電極間距離をＬｍｍ、封入されるキセノンまたはク
リプトンからなる少なくとも一種の希ガスの圧力をＰ気
圧としたとき、ＰＬ≧４０であることを特徴としてい
る。The high-pressure metal vapor discharge lamp according to claim 2 of the present invention is characterized in that the rare gas is at least one selected from xenon, krypton, and argon. In the high pressure metal vapor discharge lamp according to claim 3 of the present invention, PL ≧ 40 when the distance between the electrodes is L mm and the pressure of at least one rare gas made of xenon or krypton is P atmosphere. Is characterized by.
【００１３】本発明の請求項４に記載の高圧金属蒸気放
電ランプは，電極間距離をＬｍｍ、封入されるアルゴン
からなる希ガスの圧力をＰ気圧としたとき、ＰＬ≧５０
であることを特徴としている。In a high pressure metal vapor discharge lamp according to a fourth aspect of the present invention, PL ≧ 50 when the distance between the electrodes is L mm and the pressure of the rare gas containing argon is P atmosphere.
It is characterized by being.
【００１４】[0014]
【作用】入力によりその発光エネルギーが大幅に変化す
る水銀を封入していないので水銀の発光がなく、金属ハ
ロゲン化物および封入ガスの発光であるので入力を変え
ても発光色の変化を極めて低く抑えることができる。[Function] Since mercury is not enclosed because mercury whose emission energy greatly changes depending on the input is not enclosed, and since it is the emission of the metal halide and the enclosed gas, the change in emission color can be kept extremely low even if the input is changed. be able to.
【００１５】[0015]
【実施例】以下，本発明の実施例を図面を参照して説明
する。図１は本発明に係る高圧金属蒸気放電ランプを示
す。図中１は石英ガラスからなるバルブ、２、２はバル
ブ１内に対向して設けられた一対の電極、３、３は内方
に電極２、２外方に外導線４、４を接続したモリブデン
などからなる金属箔で、バルブ１の両端部に形成した封
止部５、５内に金属箔３、３を封止している。また、こ
のバルブ１内には発光物質として金属ハロゲン化物たと
えばＮａＩ（ヨウ化ナトリウム）、ＳｃＩ3（ヨウ化ス
カンジウム）および希ガスたとえばキセノン、クリプト
ン、アルゴンなどが封入され発光管Ｈを構成している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a high pressure metal vapor discharge lamp according to the present invention. In the figure, 1 is a bulb made of quartz glass, 2 and 2 are a pair of electrodes provided in the bulb 1 so as to face each other, 3 and 3 are electrodes 2 on the inside, and external conductors 4 and 4 are on the outside. A metal foil made of molybdenum or the like is used to seal the metal foils 3 and 3 in the sealing portions 5 and 5 formed at both ends of the bulb 1. Further, a metal halide such as NaI (sodium iodide), ScI 3 (scandium iodide) and a rare gas such as xenon, krypton, and argon are enclosed as light emitting substances in the bulb 1 to form an arc tube H. .
【００１６】このような構成の高圧金属蒸気放電ランプ
は点灯時主としてＮａ（ナトリウム）、Ｓｃ（スカンジ
ウム）が発光し所定の特性を呈する。また、ランプへの
入力を変えるとＮａ（ナトリウム）、Ｓｃ（スカンジウ
ム）の絶対発光エネルギーは増減するがその発光比は殆
ど変化しないので色特性の変化は少なく、調光しても違
和感は少ない。When the high-pressure metal vapor discharge lamp having such a structure is lit, mainly Na (sodium) and Sc (scandium) emit light to exhibit predetermined characteristics. Also, when the input to the lamp is changed, the absolute emission energy of Na (sodium) and Sc (scandium) increases or decreases, but its emission ratio hardly changes, so that the change in color characteristics is small, and even if light control is performed, there is little discomfort.
【００１７】また、キセノンなどはガス状であるためラ
ンプ始動時直ちに放電を生起し発光するので、Ｎａ（ナ
トリウム）、Ｓｃ（スカンジウム）が蒸発し発光するま
での間を補う作用をなす。Further, since xenon and the like are in a gaseous state, they immediately generate a discharge and emit light at the time of starting the lamp, and thus serve to supplement the time until Na (sodium) and Sc (scandium) evaporate and emit light.
【００１８】つぎに，具体例を説明する。内径約１０ｍ
ｍの石英ガラスからなるバルブ１内にトリウム入りタン
グステンからなる一対の電極２、２の先端を約１０ｍｍ
の間隔を隔てて対向させ、このバルブ１内にＮａＩ（ヨ
ウ化ナトリウム）を約２０ｍｇ、ＳｃＩ3 （ヨウ化スカ
ンジウム）を約４ｍｇ、キセノンガスを常温で約８気圧
を封入して高圧金属蒸気放電ランプ（以下、本発明ラン
プＡという。）を製作した。Next, a specific example will be described. Inner diameter about 10m
The tip of a pair of electrodes 2 made of tungsten containing thorium in a bulb 1 made of quartz glass of about 10 mm is about 10 mm.
The valve 1 is faced with a high pressure metal vapor discharge of about 20 mg NaI (sodium iodide), about 4 mg ScI 3 (scandium iodide) and about 8 atm of xenon gas at room temperature. A lamp (hereinafter referred to as lamp A of the present invention) was manufactured.
【００１９】この本発明ランプＡを定格入力の１５０Ｗ
（ランプ電圧約９０Ｖ）で点灯したときの分光エネルギ
分布は図２に示すとおりで、相関色温度は３７００Ｋで
あり、また、このランプＡの入力を７５Ｗに下げて点灯
したときの分光エネルギ分布は図３に示すとおりで、相
関色温度は４１００Ｋであり、この本発明ランプＡは水
銀の発光がないので入力を変えても、Ｎａ（ナトリウ
ム）、Ｓｃ（スカンジウム）の発光は同じように変化す
るため、色特性の変動は少ない。This lamp A of the present invention is rated at 150 W
The spectral energy distribution when the lamp is turned on (lamp voltage of about 90 V) is as shown in FIG. 2, the correlated color temperature is 3700 K, and the spectral energy distribution when the lamp A is turned down to 75 W and turned on is As shown in FIG. 3, the correlated color temperature is 4100K, and since the lamp A of the present invention does not emit mercury, the emitted light of Na (sodium) and Sc (scandium) change similarly even when the input is changed. Therefore, there is little variation in color characteristics.
【００２０】すなわち、調光しても違和感が少ない照明
を得ることができた。In other words, it was possible to obtain an illumination with less discomfort even when dimming.
【００２１】また、比較例としてバルブおよび電極条件
が上記と同じで、Ｈｇ（水銀）を約２５ｍｇ、ＮａＩ
（ヨウ化ナトリウム）を約２０ｍｇ、ＳｃＩ3 （ヨウ化
スカンジウム）を約４ｍｇ、アルゴンガスを常温で約１
００Ｔｏｒｒを封入したメタルハライドランプ（以下、
従来ランプという。）を用意した。As a comparative example, the bulb and electrode conditions were the same as above, and Hg (mercury) was about 25 mg and NaI
About 20 mg of (sodium iodide), about 4 mg of ScI 3 (scandium iodide), and about 1 mg of argon gas at room temperature.
Metal halide lamp with 00 Torr (hereinafter,
Conventionally called a lamp. ) Was prepared.
【００２２】このランプＢを上記と同様な点灯を行なっ
たところ、定格入力の１５０Ｗ（ランプ電圧約９０Ｖ）
で点灯したときの分光エネルギ分布は図５に示すとおり
で、相関色温度は３８００Ｋであり、また、入力を７５
Ｗに下げて点灯したときの分光エネルギ分布は図６に示
すとおりで、相関色温度は５７００Ｋであった。このよ
うに入力を下げると従来技術の項に記したように、Ｎａ
（ナトリウム）とＳｃ（スカンジウム）の発光が大幅に
下がり、殆ど水銀の発光のみとなり、色特性は大幅に変
わってしまい違和感が生じる。When this lamp B was lit in the same manner as above, a rated input of 150 W (lamp voltage of about 90 V)
The spectral energy distribution when turned on is as shown in FIG. 5, the correlated color temperature is 3800 K, and the input is 75
The spectral energy distribution at the time of lowering to W and lighting was as shown in FIG. 6, and the correlated color temperature was 5700K. When the input is lowered in this way, as described in the section of the prior art, Na
The luminescence of (sodium) and Sc (scandium) is significantly reduced, and almost only the luminescence of mercury is produced, and the color characteristics are greatly changed, causing a feeling of strangeness.
【００２３】なお、本発明では上記のように発光物質と
して水銀を封入せず金属ハロゲン化物と希ガスを封入し
て調光と始動特性を向上したが、通常点灯時にランプで
は電極によってエネルギーが消費され電極ロスがあり、
特にランプ電圧を下げた場合には電極によって消費され
る割合が大きくなるので効率が低下する。In the present invention, as described above, the mercury is not encapsulated as the luminescent material, but the metal halide and the rare gas are encapsulated to improve the dimming and starting characteristics. There is electrode loss,
In particular, when the lamp voltage is lowered, the efficiency is lowered because the ratio consumed by the electrodes becomes large.
【００２４】本発明者等の実験によれば、このランプ電
圧は電極間距離（Ｌｍｍ）と希ガスの封入圧力（Ｐ気
圧）との積に関係することが分かった。図４はキセノン
ガスを封入した上記実施例のランプ構成において、縦軸
にランプ電圧、横軸に電極間距離（Ｌｍｍ）と希ガスの
封入圧力（Ｐ気圧）との積ＬＰ（Ｌｍｍ×Ｐ気圧）をと
ったときの関係を示す。このランプ電圧は電極ロス（通
常電極降下電圧は約１５Ｖ）を考慮すると５０Ｖ以上が
望ましく、図４からＬＰは４０以上あればよい。このＬ
Ｐの値は希ガスの種類によっても異なりクリプトンガス
（Ｋｒ）の場合は上記キセノンガス（Ｘｅ）を封入した
場合と同様な結果を示したが、アルゴンガス（Ａｒ）を
封入した場合のＬＰは５０以上を必要とする結果となっ
た。これは、クリプトンガス（Ｋｒ）やキセノンガス
（Ｘｅ）に対してアルゴンガス（Ａｒ）の電気伝導度が
異なるためによるものと推察される。Experiments conducted by the present inventors have revealed that the lamp voltage is related to the product of the inter-electrode distance (L mm) and the rare gas filling pressure (P atmospheric pressure). FIG. 4 shows a product LP (Lmm × P atmospheric pressure) of the lamp voltage on the vertical axis and the interelectrode distance (Lmm) on the horizontal axis and the rare gas filling pressure (P atmospheric pressure) in the lamp configuration of the above embodiment in which xenon gas is sealed. ) Shows the relationship when taken. Considering the electrode loss (usually the electrode drop voltage is about 15 V), this lamp voltage is preferably 50 V or higher, and from FIG. 4, LP may be 40 or higher. This L
The value of P is different depending on the kind of rare gas, and in the case of krypton gas (Kr), the same result as when the above-mentioned xenon gas (Xe) was filled was shown, but when the argon gas (Ar) was filled, the LP was The result required 50 or more. It is speculated that this is because the electric conductivity of argon gas (Ar) is different from that of krypton gas (Kr) or xenon gas (Xe).
【００２５】なお、この種のランプとしては、通常電極
間距離（Ｌｍｍ）は２ｍｍ〜１００ｍｍ位までがよく使
用され，希ガスの封入圧力はガラスバルブの爆発を考慮
すると（常温で）１気圧〜２０気圧位までが適当と考え
られ、上限はこれらからおのずと決まる。For this type of lamp, a distance between electrodes (Lmm) of 2 mm to 100 mm is usually used, and a rare gas filling pressure is 1 atm (at room temperature) in consideration of explosion of a glass bulb. Up to about 20 atm is considered appropriate, and the upper limit is naturally determined from these.
【００２６】また、本発明はランプのバルブ形状、封入
物、封入物の組成や量、点灯方向、点灯条件などおよび
上記と同様に電極間距離、希ガスの封入圧力を変えて種
々特性を調べたが、その結果はいずれも上記と同様であ
った。Further, according to the present invention, various characteristics are examined by changing the bulb shape of the lamp, the filling material, the composition and amount of the filling material, the lighting direction, the lighting conditions and the like, and changing the distance between the electrodes and the filling pressure of the rare gas in the same manner as above. However, the results were the same as above.
【００２７】なお，本発明は上記実施例に限定されな
い。たとえば，ランプの形状は図に示す管形に限らず球
状や楕円形状などでもよく、また、バルブの材質も石英
ガラスに限らずアルミナなどの透光性セラミックスであ
ってもよい。The present invention is not limited to the above embodiment. For example, the shape of the lamp is not limited to the tube shape shown in the figure, and may be a spherical shape or an elliptical shape, and the material of the bulb is not limited to quartz glass but may be a translucent ceramic such as alumina.
【００２８】また、バルブ内に封入する金属ハロゲン化
物は上記のＮａＩ、ＳｃＩ3 に限らず、ＤｙＩ3 、Ｔｍ
Ｉ3 、ＨｏＩ3 、ＣｅＩ3 などの希土類金属ハロゲン化
物あるいはＣｓＩなどのアルカリ金属ハロゲン化物など
でもよく、ハロゲンもヨウ素に限らず臭素、塩素などで
もよい。Further, the metal halide sealed in the bulb is not limited to the above NaI and ScI 3 , but may be DyI 3 , Tm.
Rare earth metal halides such as I 3 , HoI 3 and CeI 3 or alkali metal halides such as CsI may be used, and halogen is not limited to iodine and may be bromine or chlorine.
【００２９】さらに、希ガスも単体で封入したものに限
らず、混合封入しても差支えない。さらにまた、発光管
はそのまま一重管としても外管に収容した二重管構造と
してもよく、用途も調光を行う一般照明用、店舗照明
用、劇場ホール用、競技場用などのほか始動性能がよい
ので自動車用などにも使用できる。Further, the rare gas is not limited to the one sealed alone, and may be mixed and sealed. Furthermore, the arc tube may be a single tube as it is or a double tube structure housed in an outer tube, and the application is for general lighting for dimming, store lighting, theater hall, stadium etc. Since it is good, it can also be used for automobiles.
【００３０】[0030]
【発明の効果】以上詳述したように本発明によるランプ
は、水銀の発光がないので入力を変えても、ＮａＩ（ヨ
ウ化ナトリウム）、ＳｃＩ3 （ヨウ化スカンジウム）な
どの金属ハロゲン化物の発光は同じように変化するた
め、色特性の変動は少なく、調光しても違和感が少ない
照明を得ることができた。また、ランプ始動時には希ガ
スの放電が速やかに発生するので、光束の立上がりが速
く良好な照明が得られた。さらに、本発明のランプは水
銀を使用しないので、環境の保護にも貢献できるなど種
々の特徴を有する特性の安定した高圧金属蒸気放電ラン
プを提供できる。As described in detail above, since the lamp according to the present invention does not emit mercury, even if the input is changed, the emission of metal halides such as NaI (sodium iodide) and ScI 3 (scandium iodide). Changes in the same way, so there is little change in the color characteristics, and it is possible to obtain lighting with less discomfort even when dimming. Further, since the discharge of the rare gas is rapidly generated at the time of starting the lamp, the luminous flux rises quickly and good illumination can be obtained. Furthermore, since the lamp of the present invention does not use mercury, it is possible to provide a high-pressure metal vapor discharge lamp with stable characteristics having various characteristics such as contributing to environmental protection.
【図１】本発明の放電ランプの実施例を示す正面図。FIG. 1 is a front view showing an embodiment of a discharge lamp of the present invention.
【図２】本発明ランプの分光エネルギー分布特性を示す
グラフ。FIG. 2 is a graph showing the spectral energy distribution characteristics of the lamp of the present invention.
【図３】本発明ランプの分光エネルギー分布特性を示す
グラフ。FIG. 3 is a graph showing the spectral energy distribution characteristics of the lamp of the present invention.
【図４】ランプ電圧と電極間距離（Ｌ）×希ガス封入圧
力（Ｐ）との関係を示すグラフFIG. 4 is a graph showing the relationship between the lamp voltage and the electrode distance (L) × rare gas filling pressure (P).
【図５】従来ランプの分光エネルギー分布特性を示すグ
ラフ。FIG. 5 is a graph showing spectral energy distribution characteristics of a conventional lamp.
【図６】従来ランプの分光エネルギー分布特性を示すグ
ラフ。FIG. 6 is a graph showing spectral energy distribution characteristics of a conventional lamp.
１…バルブ ２…電極 Ｈ…発光管 Ｌ…電極管距離 1 ... Bulb 2 ... Electrode H ... Arc tube L ... Electrode tube distance
Claims (4)
に金属ハロゲン化物と希ガスとを封入したことを特徴と
する高圧金属蒸気放電ランプ。1. A high-pressure metal vapor discharge lamp characterized in that a metal halide and a rare gas are enclosed in an arc tube having at least a pair of electrodes.
ンから選ばれた少なくとも一種であることを特徴とする
上記請求項１に記載の高圧金属蒸気放電ランプ。2. The high pressure metal vapor discharge lamp according to claim 1, wherein the rare gas is at least one selected from xenon, krypton, and argon.
ンまたはクリプトンからなる少なくとも一種の希ガスの
圧力をＰ気圧としたとき、 ＰＬ≧４０ の関係にあることを特徴とする請求項１または請求項２
に記載の高圧金属蒸気放電ランプ。3. The relationship of PL ≧ 40 when the distance between electrodes is L mm and the pressure of at least one rare gas made of xenon or krypton enclosed is P atmosphere. Item 2
High-pressure metal vapor discharge lamp according to.
ンからなる希ガスの圧力をＰ気圧としたとき、 ＰＬ≧５０ の関係にあることを特徴とする請求項１または請求項２
に記載の高圧金属蒸気放電ランプ。4. When the distance between the electrodes is L mm and the pressure of the enclosed rare gas consisting of argon is P atmospheric pressure, the relation of PL ≧ 50 is satisfied.
High-pressure metal vapor discharge lamp according to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23658992A JPH0684496A (en) | 1992-09-04 | 1992-09-04 | High pressure metallic vapor electric discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23658992A JPH0684496A (en) | 1992-09-04 | 1992-09-04 | High pressure metallic vapor electric discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0684496A true JPH0684496A (en) | 1994-03-25 |
Family
ID=17002885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23658992A Pending JPH0684496A (en) | 1992-09-04 | 1992-09-04 | High pressure metallic vapor electric discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0684496A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1037258A1 (en) * | 1998-02-20 | 2000-09-20 | Matsushita Electric Industrial Co., Ltd. | Mercury-free metal halide lamp |
| JP2002543576A (en) * | 1999-04-29 | 2002-12-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Metal halide lamp |
| EP1274118A2 (en) * | 1997-06-06 | 2003-01-08 | Toshiba Lighting & Technology Corporation | Mercury-free metal halide discharge lamp, lighting device for such a lamp, and illuminating apparatus using such a lamp |
| EP1288998A1 (en) * | 2001-08-24 | 2003-03-05 | Stanley Electric Co., Ltd. | Mercury-free metal halide lamp, its contents and electric power control depending on resistance property |
| JP2003168391A (en) * | 2001-09-20 | 2003-06-13 | Koito Mfg Co Ltd | Mercury-free arc tube for discharge lamp device |
| US6639341B1 (en) | 1999-03-26 | 2003-10-28 | Matsushita Electric Works, Ltd. | Metal halide discharge lamp |
| US7242144B2 (en) | 2001-09-27 | 2007-07-10 | Harison Toshiba Lighting Corp. | High-pressure discharge lamp, high-pressure discharge lamp lighting device and automotive headlamp apparatus |
| JP2007533087A (en) * | 2004-04-16 | 2007-11-15 | 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 | High pressure discharge lamp |
| KR100824336B1 (en) * | 2001-08-27 | 2008-04-22 | 스탠리 일렉트릭 컴퍼니, 리미티드 | Metal Halide Lamp |
| JP2009064787A (en) * | 2001-09-26 | 2009-03-26 | Osram Sylvania Inc | Quartz arc tube for metal halide lamp and method of making the same |
| CN102456525A (en) * | 2010-10-18 | 2012-05-16 | 爱思普特殊光源(深圳)有限公司 | Method for reducing leakage failure probability of short-arc xenon lamp effectively |
-
1992
- 1992-09-04 JP JP23658992A patent/JPH0684496A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1274118A2 (en) * | 1997-06-06 | 2003-01-08 | Toshiba Lighting & Technology Corporation | Mercury-free metal halide discharge lamp, lighting device for such a lamp, and illuminating apparatus using such a lamp |
| EP1274118A3 (en) * | 1997-06-06 | 2004-09-22 | Toshiba Lighting & Technology Corporation | Mercury-free metal halide discharge lamp, lighting device for such a lamp, and illuminating apparatus using such a lamp |
| US6873109B2 (en) | 1997-06-06 | 2005-03-29 | Harison Toshiba Lighting Corporation | Metal halide discharge lamp, lighting device for metal halide discharge lamp, and illuminating apparatus using metal halide discharge lamp |
| EP1037258A1 (en) * | 1998-02-20 | 2000-09-20 | Matsushita Electric Industrial Co., Ltd. | Mercury-free metal halide lamp |
| EP1037258A4 (en) * | 1998-02-20 | 2006-08-09 | Matsushita Electric Ind Co Ltd | Mercury-free metal halide lamp |
| CN1324643C (en) * | 1998-02-20 | 2007-07-04 | 松下电器产业株式会社 | Mercury-free metal halide lamp |
| US6639341B1 (en) | 1999-03-26 | 2003-10-28 | Matsushita Electric Works, Ltd. | Metal halide discharge lamp |
| JP2002543576A (en) * | 1999-04-29 | 2002-12-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Metal halide lamp |
| JP4693995B2 (en) * | 1999-04-29 | 2011-06-01 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Metal halide lamp |
| EP1288998A1 (en) * | 2001-08-24 | 2003-03-05 | Stanley Electric Co., Ltd. | Mercury-free metal halide lamp, its contents and electric power control depending on resistance property |
| US6670765B2 (en) | 2001-08-24 | 2003-12-30 | Stanley Electric Co., Ltd. | Mercury-free metal halide lamp, with contents and electric power control depending on resistance properties |
| KR100824336B1 (en) * | 2001-08-27 | 2008-04-22 | 스탠리 일렉트릭 컴퍼니, 리미티드 | Metal Halide Lamp |
| JP2003168391A (en) * | 2001-09-20 | 2003-06-13 | Koito Mfg Co Ltd | Mercury-free arc tube for discharge lamp device |
| JP2009064787A (en) * | 2001-09-26 | 2009-03-26 | Osram Sylvania Inc | Quartz arc tube for metal halide lamp and method of making the same |
| US7242144B2 (en) | 2001-09-27 | 2007-07-10 | Harison Toshiba Lighting Corp. | High-pressure discharge lamp, high-pressure discharge lamp lighting device and automotive headlamp apparatus |
| JP2007533087A (en) * | 2004-04-16 | 2007-11-15 | 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 | High pressure discharge lamp |
| CN102456525A (en) * | 2010-10-18 | 2012-05-16 | 爱思普特殊光源(深圳)有限公司 | Method for reducing leakage failure probability of short-arc xenon lamp effectively |
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