JPH07282774A - Metal halide lamp - Google Patents
Metal halide lampInfo
- Publication number
- JPH07282774A JPH07282774A JP7322094A JP7322094A JPH07282774A JP H07282774 A JPH07282774 A JP H07282774A JP 7322094 A JP7322094 A JP 7322094A JP 7322094 A JP7322094 A JP 7322094A JP H07282774 A JPH07282774 A JP H07282774A
- Authority
- JP
- Japan
- Prior art keywords
- halide
- lamp
- cesium
- iodide
- enclosed
- 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
- 229910001507 metal halide Inorganic materials 0.000 title claims abstract description 21
- 150000005309 metal halides Chemical class 0.000 title claims abstract description 21
- 150000004820 halides Chemical class 0.000 claims abstract description 26
- 229910052792 caesium Inorganic materials 0.000 claims abstract description 12
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 6
- 229910052689 Holmium Inorganic materials 0.000 claims abstract description 6
- 229910052775 Thulium Inorganic materials 0.000 claims abstract description 6
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims abstract description 6
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims abstract description 6
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 claims abstract description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 6
- 229910052716 thallium Inorganic materials 0.000 claims abstract description 6
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 cesium halide Chemical class 0.000 claims description 9
- 238000009877 rendering Methods 0.000 abstract description 19
- 229910052756 noble gas Inorganic materials 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 3
- 238000011156 evaluation Methods 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 13
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 description 12
- 229910052761 rare earth metal Inorganic materials 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 150000002910 rare earth metals Chemical class 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 230000008602 contraction Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- GQKYKPLGNBXERW-UHFFFAOYSA-N 6-fluoro-1h-indazol-5-amine Chemical compound C1=C(F)C(N)=CC2=C1NN=C2 GQKYKPLGNBXERW-UHFFFAOYSA-N 0.000 description 4
- KXCRAPCRWWGWIW-UHFFFAOYSA-K holmium(3+);triiodide Chemical compound I[Ho](I)I KXCRAPCRWWGWIW-UHFFFAOYSA-K 0.000 description 4
- LZOMHYVAEHYDST-UHFFFAOYSA-K thulium(3+);triiodide Chemical compound I[Tm](I)I LZOMHYVAEHYDST-UHFFFAOYSA-K 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- CMJCEVKJYRZMIA-UHFFFAOYSA-M thallium(i) iodide Chemical compound [Tl]I CMJCEVKJYRZMIA-UHFFFAOYSA-M 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はメタルハライドランプに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal halide lamp.
【０００２】[0002]
【従来の技術】従来より、演色性を重視するメタルハラ
イドランプに封入する金属として、ホルミウム、ツリウ
ム、ジスプロシウムなどの希土類金属と、ナトリウム、
タリウムなどの金属との組合わせが採用されている。希
土類金属は、可視波長範囲全域にわたって密集した多数
のスペクトルを発するので、このような金属のハロゲン
化物を封入したメタルハライドランプでは平均演色評価
数８０以上が得られる。2. Description of the Related Art Conventionally, rare earth metals such as holmium, thulium, and dysprosium have been used as metals to be enclosed in metal halide lamps that place importance on color rendering, sodium,
A combination with a metal such as thallium is used. Since rare earth metals emit a large number of dense spectra over the entire visible wavelength range, an average color rendering index of 80 or more can be obtained with a metal halide lamp in which such a metal halide is enclosed.
【０００３】近年、特にＴＶ画像用に適したさらに演色
性の高いランプ、すなわち色温度が約６０００Ｋ、平均
演色評価数が９０以上の定格電力１０００Ｗ以上の高ワ
ットメタルハライドランプに対する要望が強くなってい
る。In recent years, there has been a strong demand for a lamp having a higher color rendering property particularly suitable for TV images, that is, a high-wattage metal halide lamp having a color temperature of about 6000 K and an average color rendering index of 90 or more and a rated power of 1000 W or more. .
【０００４】従来、前記のような希土類の組み合わせに
よって色温度６０００Ｋ、演色評価数９０以上で、か
つ、定格電力が１０００Ｗ級の高ワットランプを実現す
るために、発光管の管壁負荷を大きくして発光管管壁の
動作温度を高め、希土類金属ハロゲン化物の動作蒸気圧
を高めるという方法がとられていた。Conventionally, in order to realize a high wattage lamp having a color temperature of 6000 K, a color rendering index of 90 or more, and a rated power of 1000 W class, by combining the rare earths as described above, the tube wall load of the arc tube is increased. Then, the operating temperature of the arc tube wall is raised to raise the operating vapor pressure of the rare earth metal halide.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前記の
ような希土類金属ハロゲン化物を封入したメタルハライ
ドランプでは、希土類金属が他の金属と比較して発光管
を構成する石英ガラスと反応し易く、ランプの動程中に
石英ガラスの結晶化、失透が早く進行する。また、低、
中ワットのランプに比べて電極間距離の長い１０００Ｗ
級のランプでは、水平点灯時においてアークの径の収縮
と上方への湾曲が大きくなり、発光管の上側管壁が加熱
されやすく、石英ガラスの結晶化、失透、上側管壁の膨
れ等が促進されるとともに、ランプ電圧が著しく上昇し
ていくので、定格寿命が短くなるという問題があった。
アークの収縮および上方への湾曲はハロゲン化物の封入
総量を少なくすることによって抑制することができる
が、演色性が低下してしまうという問題がある。However, in the metal halide lamp in which the rare earth metal halide is encapsulated as described above, the rare earth metal is more likely to react with the quartz glass constituting the arc tube than other metals, and the lamp Quartz glass crystallizes and devitrifies rapidly during the travel. Also low,
1000W longer distance between electrodes than a medium watt lamp
In the class lamp, the contraction of the arc diameter and the upward bending become large during horizontal lighting, the upper tube wall of the arc tube is easily heated, and crystallization of quartz glass, devitrification, swelling of the upper tube wall, etc. There is a problem in that the rated life is shortened because the lamp voltage rises remarkably while being promoted.
The contraction of the arc and the upward curve can be suppressed by reducing the total amount of halide enclosed, but there is a problem that the color rendering property is deteriorated.
【０００６】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、平均演色評価数が９０以上
で、かつ、動程特性が向上したメタルハライドランプを
提供することを目的とするものである。The present invention has been made to solve such conventional problems, and an object thereof is to provide a metal halide lamp having an average color rendering index of 90 or more and improved travel characteristics. It is a thing.
【０００７】[0007]
【課題を解決するための手段】本発明のメタルハライド
ランプは、両端部に電極を有し、かつ、内部に水銀、希
ガスとともにタリウムおよびセシウムのハロゲン化物
と、ホルミウム、ツリウムおよびジスプロシウムのハロ
ゲン化物の内の少なくとも一種とを含む混合ハロゲン化
物が封入された発光管を備えた定格電力１０００Ｗ以上
のメタルハライドランプであって、前記ハロゲン化物の
封入総量を前記発光管の内容積１cm3当たり０．５５〜
０．９mgの範囲に選定し、かつ、前記セシウムのハロゲ
ン化物の重量比を前記混合ハロゲン化物の封入総量に対
して１５〜２５％に選定し、色温度が５５００〜７００
０Ｋである構成を有する。A metal halide lamp according to the present invention has electrodes at both ends, and contains a halide of thallium and cesium together with a halide of holmium, thulium and dysprosium together with mercury and a noble gas therein. What is claimed is: 1. A metal halide lamp having a rated power of 1000 W or more, which comprises an arc tube in which a mixed halide containing at least one of the above is enclosed, and the total amount of the halide enclosed is 0.55 per 1 cm 3 of the inner volume of the arc tube.
It is selected in the range of 0.9 mg, and the weight ratio of the cesium halide is selected to be 15 to 25% with respect to the total amount of the mixed halide enclosed, and the color temperature is 5500 to 700.
It has a configuration that is 0K.
【０００８】[0008]
【作用】ハロゲン化物の封入総量が多いほど、演色性が
高まる反面、色温度の低下やランプ寿命の短縮を招く。
一方、セシウムのハロゲン化物を封入することは、アー
クの収縮および上方への湾曲の抑制に効果がある反面、
演色性の低下や色温度の上昇を招く。そこで本発明にお
いては、ハロゲン化物の封入総量を選定するとともに、
セシウムのハロゲン化物の重量比を選定することによ
り、平均演色評価数９０以上、色温度５５００〜７００
０Ｋ、かつ、水平点灯におけるアークの収縮および上方
への湾曲が抑制されて発光管管壁の膨れやランプ電圧の
上昇が防止され、６０００時間という長寿命を実現でき
る。The larger the total amount of halides enclosed, the higher the color rendering, but the lower the color temperature and the shorter the lamp life.
On the other hand, encapsulating a cesium halide is effective in suppressing the contraction and upward bending of the arc, but
This causes a decrease in color rendering and an increase in color temperature. Therefore, in the present invention, while selecting the total amount of halide enclosed,
By selecting the weight ratio of the cesium halide, the average color rendering index is 90 or more, and the color temperature is 5500 to 700.
At 0K, contraction and upward bending of the arc during horizontal lighting are suppressed, bulging of the arc tube tube and rise in lamp voltage are prevented, and a long life of 6000 hours can be realized.
【０００９】[0009]
【実施例】以下、本発明の一実施例について図面を用い
て説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１に示す、本発明の一実施例である定格
電力１０００Ｗのメタルハライドランプにおいて、両端
に電極が封止され石英ガラスからなる発光管１内には水
銀と、始動用希ガスとしてのアルゴンとともに、ヨウ化
タリウム、ヨウ化セシウム、ヨウ化ホルミウム、ヨウ化
ツリウムおよびヨウ化ジスプロシウムからなる混合ヨウ
化物が封入されている。発光管１は支持板２ａ，２ｂに
よって支持線３に取り付けられ、ステム４を介して外球
５内に封止されている。外球５内は高真空に排気され、
ゲッタ６により真空度が維持されている。外球５の端部
には口金７が取り付けられている。発光管１の寸法は、
内径が２２mm、電極間距離が７０mmで内容積は約２０cm
3である。In a metal halide lamp having a rated power of 1000 W according to an embodiment of the present invention shown in FIG. 1, mercury is contained in an arc tube 1 made of quartz glass with electrodes sealed at both ends and rare gas for starting. Along with argon, a mixed iodide consisting of thallium iodide, cesium iodide, holmium iodide, thulium iodide and dysprosium iodide is enclosed. The arc tube 1 is attached to the support wire 3 by the support plates 2a and 2b, and is sealed in the outer bulb 5 via the stem 4. The inside of the outer bulb 5 is evacuated to a high vacuum,
The getter 6 maintains the degree of vacuum. A base 7 is attached to the end of the outer bulb 5. The size of the arc tube 1 is
Inner diameter is 22 mm, distance between electrodes is 70 mm, and internal volume is about 20 cm
Is 3 .
【００１１】封入するヨウ化タリウム、ヨウ化ホルミウ
ム、ヨウ化ツリウムおよびヨウ化ジスプロシウムの合計
は約１６mgで、その重量比は１：１：１：１である。ま
た、ヨウ化セシウムの封入量は約４mgである。ヨウ化物
の総量は発光管内容積１cm3当たり約０．７mg、ヨウ化
物総量に対するヨウ化セシウムの比率は約２０％であ
る。水銀の封入量は、ランプの安定点灯状態においてラ
ンプ電圧平均値が１２５±１５Ｖになるように約３０mg
に設定してある。The total amount of thallium iodide, holmium iodide, thulium iodide and dysprosium iodide to be encapsulated is about 16 mg, and the weight ratio thereof is 1: 1: 1: 1. The amount of cesium iodide enclosed is about 4 mg. The total amount of iodide was about 0.7 mg per 1 cm 3 of the inner volume of the arc tube, and the ratio of cesium iodide to the total amount of iodide was about 20%. The amount of mercury enclosed is about 30 mg so that the average lamp voltage is 125 ± 15 V when the lamp is in a stable lighting state.
Is set to.
【００１２】このように構成した１０００Ｗメタルハラ
イドランプの水平点灯における初特性の平均値として、
光束値８００００ｌｍ、色温度約６０００Ｋ、平均演色
評価数約９２が得られた。また、アークの著しい収縮や
上方への湾曲がなく、寿命試験においても６０００時間
以上の点灯時間にわたって発光管管壁の膨れや、希土類
金属と石英ガラスの反応、およびその結果としての発光
管のリークによる早期寿命、ランプ電圧上昇によるラン
プの早期立ち消えなどの問題が生じることなく安定した
動程特性が得られている。As an average value of the initial characteristics in the horizontal lighting of the 1000 W metal halide lamp thus constructed,
A luminous flux value of 80,000 lm, a color temperature of about 6000 K, and an average color rendering index of about 92 were obtained. Also, there is no significant contraction or upward bending of the arc, and even in the life test, the arc tube wall swells over the lighting time of 6000 hours or more, the reaction between the rare earth metal and the quartz glass, and the resulting arc tube leak. Stable travel characteristics are obtained without causing problems such as early life due to, and early extinction of the lamp due to increase in lamp voltage.
【００１３】なお、本発明におけるハロゲン化物の封入
総量、ならびにセシウムのハロゲン化物の重量比の選定
範囲は、次のような実験、検討結果に基づいて見い出し
たものである。The selection range of the total amount of halides enclosed and the weight ratio of cesium halides in the present invention is found based on the following experiment and examination results.
【００１４】表１に、ヨウ化セシウムを除いた残りのヨ
ウ化物の封入量を前記の値に固定して、ヨウ化セシウム
の重量比を変化させたときのランプの特性を示す。Table 1 shows the characteristics of the lamp when the amount of the remaining iodide excluding cesium iodide was fixed to the above value and the weight ratio of cesium iodide was changed.
【００１５】[0015]
【表１】 [Table 1]
【００１６】ヨウ化セシウム封入比を減少させていくと
初特性としては、光束値および平均演色評価数が向上し
好ましい結果が得られる。しかし、アークの湾曲が大き
くなるために、動程中の発光管管壁の膨れならびにラン
プ電圧の上昇が促進される。特に、ヨウ化セシウム量の
ヨウ化物封入総量に対する比を１４．７％より小さくす
ると、動程初期のランプ電圧の上昇が著しく大きくな
り、ランプの早期立ち消えが発生する。When the cesium iodide encapsulation ratio is reduced, the luminous flux value and the average color rendering index are improved as the initial characteristics, and favorable results are obtained. However, the large arc curvature accelerates the bulging of the arc tube wall and the rise in lamp voltage during travel. In particular, if the ratio of the amount of cesium iodide to the total amount of iodide sealed is less than 14.7%, the lamp voltage rises significantly at the beginning of the travel, and the lamp goes out early.
【００１７】なお、表１中のランプ電圧の上昇差は、ラ
ンプ動程後０時間の電圧と、１０００時間のときのラン
プ電圧の差を示している。The increase in the lamp voltage in Table 1 indicates the difference between the voltage at 0 hours after the lamp travel and the lamp voltage at 1000 hours.
【００１８】逆に、ヨウ化セシウムの重量比を増加して
いくと、アークの収縮および上方への湾曲が抑制されて
発光管管壁の膨れやランプ電圧の上昇が抑制される。し
かし、光束値と演色性が低下していき、色温度は高くな
っていく。特に、ヨウ化セシウム量のヨウ化物封入総量
に対する比を２５％より大きくすると、平均演色評価数
は９０以下となり、さらに、色温度は７０００Ｋより高
くなる。以上の実験結果より、ヨウ化セシウムの封入量
は、ヨウ化物総量に対する重量比で１５〜２５％に選定
するのが好ましいことがわかった。On the contrary, if the weight ratio of cesium iodide is increased, the contraction and upward bending of the arc are suppressed, and the arc tube wall swelling and the lamp voltage increase are suppressed. However, the luminous flux value and the color rendering property decrease, and the color temperature increases. In particular, when the ratio of the amount of cesium iodide to the total amount of iodide encapsulated is larger than 25%, the average color rendering index becomes 90 or less, and the color temperature becomes higher than 7,000K. From the above experimental results, it was found that it is preferable to select the amount of cesium iodide enclosed in 15 to 25% by weight relative to the total amount of iodide.
【００１９】表２に、ヨウ化物の封入総量を変化させた
ときのランプの特性を示す。Table 2 shows the characteristics of the lamp when the total enclosed amount of iodide was changed.
【００２０】[0020]
【表２】 [Table 2]
【００２１】ランプの特性に対してヨウ化セシウム重量
比とはほぼ逆の影響を及ぼす。すなわち、封入総量が多
いほど初特性としての光束値および演色性が向上する
が、アークの湾曲が大きくなり動程中の希土類金属と石
英ガラスとの反応が促進されることになる。ヨウ化物の
封入量が０．９mg／cm3を越えると、ランプ電圧が定格
値１２５±１５Ｖを越えてしまうとともに、色温度、寿
命とも所望の値を達成することができなくなる。逆に、
ヨウ化物の封入総量を減少していくと、動程中の特性の
維持に関しては好結果が得られるが、初期特性としての
光束値および演色性が低下していき、色温度は高くなっ
ていく。ヨウ化物の封入総量を０．５５mg／cm3より少
なくすると、所望の平均演色評価数を得ることができな
かった。以上の実験結果より、ヨウ化物の封入総量は、
０．５５〜０．９mg／cm3に選定すればよいことがわか
った。The effect on the characteristics of the lamp is almost opposite to the weight ratio of cesium iodide. That is, although the luminous flux value and the color rendering property as the initial characteristics are improved as the total enclosed amount is increased, the curvature of the arc is increased and the reaction between the rare earth metal and the silica glass during the travel is promoted. When the amount of iodide enclosed exceeds 0.9 mg / cm 3 , the lamp voltage exceeds the rated value of 125 ± 15 V, and the desired values of color temperature and life cannot be achieved. vice versa,
As the total amount of iodide encapsulated is reduced, good results can be obtained with regard to maintaining the characteristics during travel, but the luminous flux value and color rendering as the initial characteristics decrease, and the color temperature increases. . If the total amount of iodide encapsulated was less than 0.55 mg / cm 3 , the desired average color rendering index could not be obtained. From the above experimental results, the total amount of iodide enclosed is
It was found that the amount should be selected from 0.55 to 0.9 mg / cm 3 .
【００２２】なお、表２中のランプ電圧はランプ動程後
１００時間経過時点のランプ電圧を示している。The lamp voltage in Table 2 shows the lamp voltage when 100 hours have passed after the lamp travel.
【００２３】以上のように、ヨウ化物の封入総量０．５
５〜０．９mg／cm3およびヨウ化セシウムの重量比１５
〜２５％の範囲において、種々の封入量の組合せのラン
プを試作した。それらを点灯したところ、いずれも色温
度が約６０００Ｋ、平均演色評価数が９０以上の初期特
性が得られた。また、６０００時間以上にわたって発光
管管壁の膨らみは認められず、ランプ電圧の上昇もなく
安定した動程特性が得られることが確認できた。As described above, the total amount of iodide enclosed is 0.5.
5 to 0.9 mg / cm 3 and weight ratio of cesium iodide 15
In the range of up to 25%, various trials of lamps with various enclosed amounts were made. When they were turned on, initial color characteristics were obtained in which the color temperature was about 6000 K and the average color rendering index was 90 or more. Further, it was confirmed that no bulging of the arc tube wall was observed for 6000 hours or more, and stable range characteristics were obtained without an increase in the lamp voltage.
【００２４】なお、前記実施例においては、ヨウ化ホル
ミウムとヨウ化ツリウムとヨウ化ジスプロシウムとヨウ
化タリウムの重量比を１：１：１：１としたが、その重
量比を変えた場合においても同様の結果が得られた。ま
た、封入する希土類のハロゲン化物として、ヨウ化ホル
ミウムとヨウ化ツリウムとヨウ化ジスプロシウムの少な
くとも一種を封入した場合においても、同様の効果が得
られた。In the above embodiment, the weight ratio of holmium iodide, thulium iodide, dysprosium iodide and thallium iodide was set to 1: 1: 1: 1, but even when the weight ratio is changed. Similar results were obtained. The same effect was obtained when at least one of holmium iodide, thulium iodide and dysprosium iodide was enclosed as the rare earth halide to be enclosed.
【００２５】また、定格電力が２０００Ｗと３０００Ｗ
のランプについても同様の検討を行ったところ上記と同
様な結果を得ることができる。The rated power is 2000 W and 3000 W.
When the same examination was performed for the above lamp, the same result as above can be obtained.
【００２６】[0026]
【発明の効果】以上説明したように、本発明のメタルハ
ライドランプは、両端部に電極を有し、かつ、内部に水
銀、希ガスとともにタリウムおよびセシウムのハロゲン
化物と、ホルミウム、ツリウムおよびジスプロシウムの
ハロゲン化物の内の少なくとも一種とを含む混合ハロゲ
ン化物が封入された発光管を備えた定格電力１０００Ｗ
のメタルハライドランプであって、前記ハロゲン化物の
封入総量を前記発光管の内容積１cm3当たり０．５５〜
０．９mgの範囲に選定し、かつ、前記セシウムのハロゲ
ン化物の重量比を前記混合ハロゲン化物の封入総量に対
して１５〜２５％に選定することによって、水平点灯に
おけるアークの上方への湾曲が小さくなり、動程中の石
英ガラスの結晶化と失透が抑制されるとともに、ランプ
電圧の上昇も小さくなるので、大規模スポーツ場照明等
に適した色温度５５００〜７０００Ｋ、平均演色評価数
９０以上で動程特性が向上したメタルハライドランプを
提供することができるものである。As described above, the metal halide lamp of the present invention has electrodes at both ends, and internally contains mercury, a rare gas, a halide of thallium and cesium, and a halogen of holmium, thulium and dysprosium. 1000 W of rated power provided with an arc tube in which a mixed halide containing at least one of
In the metal halide lamp, the total amount of the halide enclosed is 0.55 per 1 cm 3 of the inner volume of the arc tube.
By selecting the range of 0.9 mg and the weight ratio of the cesium halide to 15 to 25% with respect to the total amount of the mixed halide enclosed, the upward bending of the arc during horizontal lighting can be prevented. It becomes smaller, the crystallization and devitrification of the quartz glass during the travel are suppressed, and the rise of the lamp voltage is also small. Therefore, the color temperature is suitable for large-scale sports field lighting, etc. As described above, it is possible to provide a metal halide lamp having improved travel characteristics.
【図１】本発明の一実施例であるメタルハライドランプ
の正面図FIG. 1 is a front view of a metal halide lamp that is an embodiment of the present invention.
１ 発光管 1 arc tube
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ▲祇▼園 洪 大阪府高槻市幸町１番１号 松下電子工業 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Gion Hong Hong 1-1, Saiwaicho, Takatsuki City, Osaka Prefecture Matsushita Electronics Industrial Co., Ltd.
Claims (2)
銀、希ガスとともにタリウムおよびセシウムのハロゲン
化物と、ホルミウム、ツリウムおよびジスプロシウムの
ハロゲン化物の内の少なくとも一種とを含む混合ハロゲ
ン化物が封入された発光管を備えた定格電力１０００Ｗ
以上のメタルハライドランプであって、前記ハロゲン化
物の封入総量を前記発光管の内容積１cm3当たり０．５
５〜０．９mgの範囲に選定し、かつ、前記セシウムのハ
ロゲン化物の重量比を前記混合ハロゲン化物の封入総量
に対して１５〜２５％に選定し、色温度が５５００〜７
０００Ｋであることを特徴とするメタルハライドラン
プ。1. A mixed halide having electrodes at both ends and containing a halide of thallium and cesium together with mercury and a rare gas, and at least one kind of halides of holmium, thulium and dysprosium. 1000W rated power with enclosed arc tube
In the above metal halide lamp, the total amount of the enclosed halide is 0.5 per 1 cm 3 of the inner volume of the arc tube.
5 to 0.9 mg, and the weight ratio of the cesium halide is set to 15 to 25% with respect to the total amount of the mixed halide enclosed, and the color temperature is 5500 to 7%.
A metal halide lamp characterized by being 000K.
およびタリウムのハロゲン化物の封入量が重量比で１：
１：１：１であることを特徴とする請求項１記載のメタ
ルハライドランプ。2. The inclusion amount of holmium, thulium, dysprosium and thallium halide is 1: 1 by weight.
The metal halide lamp according to claim 1, wherein the ratio is 1: 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06073220A JP3110607B2 (en) | 1994-04-12 | 1994-04-12 | Metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06073220A JP3110607B2 (en) | 1994-04-12 | 1994-04-12 | Metal halide lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07282774A true JPH07282774A (en) | 1995-10-27 |
| JP3110607B2 JP3110607B2 (en) | 2000-11-20 |
Family
ID=13511871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06073220A Expired - Lifetime JP3110607B2 (en) | 1994-04-12 | 1994-04-12 | Metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3110607B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002343301A (en) * | 2001-05-22 | 2002-11-29 | Iwasaki Electric Co Ltd | High color-rendering metal halide lamp |
| JP2008507090A (en) * | 2004-07-13 | 2008-03-06 | アドバンスド ライティング テクノロジイズ，インコーポレイティド | Krypton metal halide lamp |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1186686A1 (en) | 2000-03-08 | 2002-03-13 | Nippon Steel Corporation | Ultrasonic pickling method and pickling device |
-
1994
- 1994-04-12 JP JP06073220A patent/JP3110607B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002343301A (en) * | 2001-05-22 | 2002-11-29 | Iwasaki Electric Co Ltd | High color-rendering metal halide lamp |
| JP2008507090A (en) * | 2004-07-13 | 2008-03-06 | アドバンスド ライティング テクノロジイズ，インコーポレイティド | Krypton metal halide lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3110607B2 (en) | 2000-11-20 |
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