JPH03250550A - Metal vapor electric discharge lamp - Google Patents
Metal vapor electric discharge lampInfo
- Publication number
- JPH03250550A JPH03250550A JP4441590A JP4441590A JPH03250550A JP H03250550 A JPH03250550 A JP H03250550A JP 4441590 A JP4441590 A JP 4441590A JP 4441590 A JP4441590 A JP 4441590A JP H03250550 A JPH03250550 A JP H03250550A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- amount
- metal vapor
- light
- discharge lamp
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 10
- 238000010891 electric arc Methods 0.000 claims abstract description 5
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 4
- 150000002367 halogens Chemical class 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 229910052716 thallium Inorganic materials 0.000 claims description 18
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 claims description 17
- 229910052742 iron Inorganic materials 0.000 claims description 16
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 12
- 229910052753 mercury Inorganic materials 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 9
- 239000011777 magnesium Substances 0.000 claims description 9
- 238000000295 emission spectrum Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract 3
- 239000005355 lead glass Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000003595 spectral effect Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000006552 photochemical reaction Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- VEEZLKPJBFXPLX-UHFFFAOYSA-N [Mg].[Fe].[Hg] Chemical compound [Mg].[Fe].[Hg] VEEZLKPJBFXPLX-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QKEOZZYXWAIQFO-UHFFFAOYSA-M mercury(1+);iodide Chemical compound [Hg]I QKEOZZYXWAIQFO-UHFFFAOYSA-M 0.000 description 1
- 229940008718 metallic mercury Drugs 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- -1 thallium halide Chemical class 0.000 description 1
- CMJCEVKJYRZMIA-UHFFFAOYSA-M thallium(i) iodide Chemical compound [Tl]I CMJCEVKJYRZMIA-UHFFFAOYSA-M 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、光化学反応や塗料およびインキの硬化などに
用いられる金属蒸気放電灯に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a metal vapor discharge lamp used for photochemical reactions, curing of paints and inks, and the like.
光化学反応を生起せしめたり、塗料やインキなどを硬化
させるために、紫外線が利用されることが多いが、これ
らの目的のためには、波長域が２８０〜４００ｎｍ程度
の紫外線が有効である。Ultraviolet rays are often used to cause photochemical reactions and to cure paints, inks, etc., and for these purposes, ultraviolet rays with a wavelength range of about 280 to 400 nm are effective.
かかる紫外線の発生源として１両端に一対の放電電極が
対向配置された管形の発光管の内部に、アーク放電を維
持するのに十分な量の水銀および希ガスが封入された高
圧水銀灯にハロゲン化金属を発光物質として封入し、有
効波長域の発光量を増加させた金属蒸気放電灯が使用さ
れることが多い、ことに鉄を封入した金属蒸気放電灯は
、３５０〜４００ｎｍの波長域が連続的に発光するため
に。As a source of ultraviolet rays, a high-pressure mercury lamp containing sufficient mercury and rare gas to maintain arc discharge is placed inside a tube-shaped arc tube with a pair of discharge electrodes facing each other at both ends. Metal vapor discharge lamps are often used in which iron is sealed as a luminescent material to increase the amount of light emitted in the effective wavelength range.In particular, metal vapor discharge lamps filled with iron have a wavelength range of 350 to 400 nm. To emit light continuously.
光化学反応や塗料の硬化などの目的のためには好都合で
ある。It is convenient for purposes such as photochemical reactions and curing of paints.
しかしながら、鉄を封入した金属蒸気放電灯を長時間点
灯していると、鉄が発光管の内壁に付着して薄膜を形成
する。このため、発光に寄与する鉄が減少するとともに
、形成された薄膜が紫外線の透過を阻害し、紫外線の出
力が減少してしまう問題点があるので、更にマグネシウ
ムを封入して鉄が発光管内壁に付着するのを防止し、紫
外線出力が長時間維持されるようにしている。However, when a metal vapor discharge lamp containing iron is left on for a long time, iron adheres to the inner wall of the arc tube and forms a thin film. For this reason, there is a problem that the amount of iron that contributes to light emission decreases, and the thin film that is formed obstructs the transmission of ultraviolet rays, reducing the output of ultraviolet rays. This prevents the UV rays from adhering to the skin and maintains the UV output for a long time.
ところで、かかる金属蒸気放電灯は、その用途によって
は定格電力よりも低い消費電力で点灯される場合がある
。また１間欠的に流れる被照射物に対して紫外線を照射
する場合に、点灯と消灯を短いサイクルで繰り返すこと
ができないので、非照射時には点灯している金属蒸気放
電灯をシャッターで覆っているが、非照射時の省電力お
よび過熱防止のために、シャッターが閉じている間は消
費電力を例えば定格電力の１／２程度に落して点灯を維
持している。しかるに、定格電力よりも低い消費電力で
点灯される場合において、第１図に示すように、管形発
光管１の内部両端に対向配置された放電電極２，３間に
生じるアーク４が、放電電極２，３の近傍において、符
号Ｘで示すように、局部的に上方に変位する現象が生じ
る。このようなアークの変位現象は、放電電極２，３の
両方に生じることもあれば一方のみに生じることもあり
、またその程度や状態は様々であるが、かかるアークの
変位が生じたときには、アーク変位部Ｘの直上に位置す
る発光管が接近したアークによって過熱されて石英ガラ
スが失透し、使用寿命が短縮してしまう、また、断面が
楕円形などの長尺の集光性反射鏡と組合せて使用する場
合に、アーク位置と反射鏡の焦点位置を一致させるが、
アーク変位部Ｘの光は反射鏡の焦点位置から外れて利用
できないので、光の利用効率が低くなってしまう問題点
がある。By the way, such a metal vapor discharge lamp may be lit with lower power consumption than the rated power depending on its use. In addition, when irradiating an object with ultraviolet rays that flow intermittently, it is impossible to repeat turning on and off in short cycles, so the metal vapor discharge lamp that is lit is covered with a shutter when not irradiated. In order to save power and prevent overheating during non-irradiation, while the shutter is closed, the power consumption is reduced to, for example, about 1/2 of the rated power, and the lighting is maintained. However, when lighting is performed with lower power consumption than the rated power, as shown in FIG. In the vicinity of the electrodes 2 and 3, as indicated by the symbol X, a phenomenon of local upward displacement occurs. Such an arc displacement phenomenon may occur in both the discharge electrodes 2 and 3, or only in one of them, and its degree and condition vary, but when such arc displacement occurs, The arc tube located directly above the arc displacement part When used in combination with the arc position and the focal position of the reflector,
Since the light from the arc displacement portion X is away from the focal point of the reflecting mirror and cannot be used, there is a problem in that the light utilization efficiency is low.
そこで本発明は、定格電力よりも低い消費電力で点灯し
た場合に、放電電極近傍におけるアークの変位が発生せ
ず、石英ガラスの失透が防止されるとともに、光の利用
効率も低下しない金属蒸気放電灯を提供することを目的
とする。Therefore, the present invention provides a metallic vapor that does not cause arc displacement near the discharge electrode, prevents devitrification of the quartz glass, and does not reduce light utilization efficiency when the light is lit with power consumption lower than the rated power. The purpose is to provide discharge lamps.
本発明の構成は、両端に一対の放電電極が対向配置され
た管形の発光管の内部に、アーク放電を維持するのに十
分な量の水銀および希ガスとともに、適量の鉄とハロゲ
ンおよびマグネシウムを封入した金属蒸気放電灯におい
て、タリウムが、発光管の内容積１ＣＣ当り、３．２Ｘ
１０−！ｌ〜２．０Ｘ１０″ｍｏｌ封入されたことを特
徴とするものである。The structure of the present invention is that a tube-shaped arc tube with a pair of discharge electrodes facing each other at both ends is provided with sufficient amounts of mercury and rare gas to maintain arc discharge, as well as appropriate amounts of iron, halogen, and magnesium. In a metal vapor discharge lamp filled with thallium, 3.2X
10-! It is characterized in that 1 to 2.0×10″mol is enclosed.
すなわち１発明者は前記の目的を達成するために、タリ
ウム（Ｔｌ）が有効であることを見い出し、種々の実験
を行った末に本発明を完成したものであり、タリウムを
発光管の内容積１ｃｃ当り、３．２ Ｘ １０−”２．
０× １０−７ｍｏｌ封入すると、水銀、鉄およびマグ
ネシウムの発光スペクトルに悪影響を与えずに、定格電
力より大幅に低い消費電力で点灯したときにもアークに
乱れが生じることを防止することができる。従って、ア
ークの乱れによって石英ガラスが過熱されて失透するこ
とが防止されて使用寿命が延びる。そして、集光性反射
鏡と組合せて使用する場合に、アーク全体を反射鏡の焦
点位置に一致させることができるので、光の利用効率も
低下しない。That is, one inventor discovered that thallium (Tl) was effective in achieving the above object, and completed the present invention after conducting various experiments. 3.2 x 10-”2.
By enclosing 0x10-7 mol, it is possible to prevent disturbances in the arc even when lighting is performed with a power consumption significantly lower than the rated power, without adversely affecting the emission spectra of mercury, iron, and magnesium. Therefore, the quartz glass is prevented from being overheated and devitrified due to arc turbulence, and its service life is extended. When used in combination with a light-condensing reflector, the entire arc can be aligned with the focus position of the reflector, so the light utilization efficiency does not decrease.
なお、タリウムの封入量が発光管の内容積１ｃｃ当り、
３．２Ｘ１０”’墓Ｏ１よりも少ないとアークの乱れを
抑制する効果が十分でなく、逆に２．０ＸＩＯ−’■０
１よりも多いと、水銀、鉄およびマグネシウムの発光ス
ペクトルの出力が弱くなり、結果的に有効波長域２８０
〜４００ｎｍの紫外線の強度が低くなる不具合がある。In addition, the amount of thallium sealed per 1 cc of internal volume of the arc tube,
If it is less than 3.2X10"'grave O1, the effect of suppressing arc disturbance will not be sufficient, and on the contrary, 2.0XIO-'■0
When the number is greater than 1, the output of the emission spectrum of mercury, iron, and magnesium becomes weaker, resulting in an effective wavelength range of 280
There is a problem that the intensity of ultraviolet rays of ~400 nm becomes low.
以下に本発明の実施例を具体的に説明する。 Examples of the present invention will be specifically described below.
本発明が対象とする金属蒸気放電灯の基本構造は第１図
に示す通りであり、内径が２２ｍｍφの石英管からなる
管形の発光管１内の端部に一対の電極２，３が対向配置
されており、定格消費電力が９ＫＷであって、電極間距
離は７５０ｍｍである。The basic structure of the metal vapor discharge lamp to which the present invention is directed is as shown in FIG. The rated power consumption is 9 KW, and the distance between the electrodes is 750 mm.
そして、発光管１内には、２８５Ｂの金属水銀と３０ｃ
ｇの沃化水銀、５．０ｍｇの鉄、０．７ａ＋ｇのマグネ
シウム、１ 、９ ｍｇの沃化タリウムおよび３０＋ｍ
Ｈｇのキセノンガスが封入されている。このタリウムの
添加封入量は、発光管１の内容積ＩＯＣ当り、２−０×
１０””＋ｏｌである。Inside the arc tube 1, there is 285B of metallic mercury and 30C of metal mercury.
g of mercury iodide, 5.0 mg of iron, 0.7 a+g of magnesium, 1,9 mg of thallium iodide and 30+ m
Hg xenon gas is sealed. The amount of added thallium is 2-0× per inner volume IOC of the arc tube 1.
10""+ol.
かかる金属蒸気放電灯を定格消費電力の９ＫＷで点灯す
ると、ランプ電流が１０．３Ａ、ランプ電圧が９７５ｖ
であり、アーク４の乱れはない。When such a metal vapor discharge lamp is lit at the rated power consumption of 9KW, the lamp current is 10.3A and the lamp voltage is 975V.
Therefore, there is no disturbance of arc 4.
そして、長時間点灯しても発光管１の内壁には鉄は全く
付着せず、鉄の薄膜は形成されずに紫外線の出力は維持
される。また、タリウムを添加封入したことによる水銀
、鉄およびマグネシウムのスペクトルの出力への影響を
調べたが、本実施例の金属蒸気放電灯は、タリウムを添
加しないものに比べて、水銀のスペクトル出力は４％減
、鉄のスペクトル出力は４％減、マグネシウムのスペク
トル出力は１％減であって、その減少はわずかであり、
添加量が発光管１の内容積１ＣＣ当り、２．０×１０″
ａ■０１であれば、タリウムが水銀や鉄およびマグネシ
ウムのスペクトル出力にほとんど悪影響を与えないこと
が確認できた。更には、タリウムを添加したことによる
始動電力、再点弧電圧などの電気特性への影響もほとん
どない。Even when the lamp is turned on for a long time, no iron adheres to the inner wall of the arc tube 1, no thin iron film is formed, and the output of ultraviolet rays is maintained. In addition, we investigated the effect of adding thallium on the spectral output of mercury, iron, and magnesium, and found that the metal vapor discharge lamp of this example had a lower mercury spectral output than one without thallium. The spectral output of iron is decreased by 4%, the spectral output of magnesium is decreased by 1%, and the decrease is small.
The amount added is 2.0 x 10" per 1 cc of internal volume of arc tube 1.
It was confirmed that thallium has almost no adverse effect on the spectral output of mercury, iron, and magnesium when a■01. Furthermore, the addition of thallium has almost no effect on electrical characteristics such as starting power and restriking voltage.
次に、前記の金属蒸気放電灯のタリウム添加量のみを変
化させたランプを２０灯づつ作製し、定格電力の半分の
４．５ＫＷで点灯してアークの乱れ状況および紫外線の
出力の変化製調査した。その結果を第１表に示す。Next, we fabricated 20 lamps each with only the amount of thallium added in the metal vapor discharge lamps described above, and lit them at 4.5 KW, half of the rated power, to investigate the arc turbulence and changes in ultraviolet light output. did. The results are shown in Table 1.
第１表
なお、第１表において、タリウム添加量の単位は履ｏ１
／ＣＣ、アーク乱れのｘ印は、２０灯中１８灯に両側部
にアークの乱れがあり、残り２灯に片側部にアークの乱
れがあり、０印は２０灯全てにアークの乱れがないこと
を示し、紫外線出力は波長域２８０〜４００止の相対値
を示す。Table 1 In addition, in Table 1, the unit of thallium addition is o1
/CC, The x mark for arc disturbance indicates that 18 out of 20 lights have arc disturbance on both sides, the remaining 2 lights have arc disturbance on one side, and the 0 mark indicates that all 20 lights have no arc disturbance. This shows that the ultraviolet light output shows a relative value in the wavelength range of 280 to 400.
第１表から分かるように、タリウム添加量が２゜５ Ｘ
１０−’ｍｏｌ／ＣＣでは、アークの乱れが認められ
るが、３ 、 ０× １０−’＠ｏｌ／ＣＣ以上ではア
ークの乱れは全く認められない、一方、タリウム添加量
を増加していくと紫外線出力が低下する傾向にあるが、
２ 、 ０× １０−’ｉ＋ｏｌ／ＣＣでは１０％減で
あり、十分に実用性がある。しかしながら、２．２ Ｘ
１０ ””ｍｏｌ／ＣＧでは１７％減となり、紫外線
の減少が著しい、結局のところ、タリウム添加量を３．
２×１０−ｓ〜２ 、 ０× １０−７ｍｏｌ／ＣＣに
すれば、有効波長域２８０〜４００ｎ閣の紫外線の出力
減少が少なくて実用的であり、かつアークの乱れを完全
に防止することができる。As can be seen from Table 1, the amount of thallium added is 2゜5
At 10-'mol/CC, arc disturbance is observed, but above 3.0x 10-'ol/CC, no arc disturbance is observed.On the other hand, as the amount of thallium added increases, ultraviolet rays Although the output tends to decrease,
2, 0x 10-'i+ol/CC, the decrease is 10%, which is sufficiently practical. However, 2.2
At 10"mol/CG, the decrease is 17%, and the decrease in ultraviolet rays is significant. In the end, if the amount of thallium added is reduced to 3.
If it is set to 2 x 10-s~2, 0 x 10-7 mol/CC, it is practical because the output of ultraviolet rays in the effective wavelength range of 280 to 400 nm is small, and it is possible to completely prevent arc disturbance. can.
なお、本実施例では、ハロゲン化タリウムを添加したが
、金属タリウムとして拳加してもよく、また両者を混合
して添加しても同じ効果が得られる。Although thallium halide is added in this example, it may be added as metal thallium, or a mixture of both may be added to obtain the same effect.
以上説明したように１本発明は、水銀−鉄一マグネシウ
ム系の金属蒸気放電灯に対して、タリウムを、発光管の
内容積１ＣＣ当り、３．２Ｘ１０−３〜２．０× Ｉ
Ｏ’″’ｍｏｌ封入したので、添加されたタリウムが水
銀、鉄およびマグネシウムの発光スペクトルの出力にほ
とんど悪影響を与えず、かつ定格電力よりも低い消費電
力で点灯したときのアークの乱れを防止することができ
る。従って、石英ガラスが過熱されて失透することが防
止され、ランプの使用寿命が延びるとともに、集光性反
射鏡と組合せて使用する場合に、アーク全体を反射鏡の
焦点位置に一致させることができるので、光の利用効率
も低下しない利点がある。As explained above, the present invention provides a mercury-iron-magnesium based metal vapor discharge lamp with thallium in the range of 3.2 x 10-3 to 2.0 x I per 1 cc of internal volume of the arc tube.
Since O''''mol is enclosed, the added thallium has almost no negative effect on the output of the emission spectrum of mercury, iron, and magnesium, and prevents arc disturbance when lighting with lower power consumption than the rated power. Therefore, the quartz glass is prevented from being overheated and devitrified, extending the service life of the lamp, and when used in combination with a condensing reflector, the entire arc can be brought to the focal point of the reflector. Since they can be made to match, there is an advantage that the light utilization efficiency does not decrease.
第１図は金属蒸気放電灯の説明図である。
１・・・発光管 ２，３・・・放電電極４・・・アー
クFIG. 1 is an explanatory diagram of a metal vapor discharge lamp. 1... Arc tube 2, 3... Discharge electrode 4... Arc
Claims (1)
内部に、アーク放電を維持するのに十分な量の水銀およ
び希ガスとともに、適量の鉄とハロゲンおよびマグネシ
ウムを封入した金属蒸気放電灯において、 タリウムが、発光管の内容積１ＣＣ当り、３．２×１０
＾−＾３〜２．０×１０＾−＾７ｍｏｌ封入されたこと
を特徴とする金属蒸気放電灯。[Claims] Inside a tube-shaped arc tube with a pair of discharge electrodes facing each other at both ends, there are sufficient amounts of mercury and rare gas to maintain arc discharge, as well as appropriate amounts of iron, halogen, and magnesium. In a metal vapor discharge lamp filled with thallium, 3.2×10
A metal vapor discharge lamp characterized in that ^-^3 to 2.0 x 10^-^7 mol is enclosed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2044415A JP2732455B2 (en) | 1990-02-27 | 1990-02-27 | Metal vapor discharge lamp |
| DE69104866T DE69104866T2 (en) | 1990-02-27 | 1991-02-26 | Metal vapor discharge lamp. |
| EP19910102794 EP0444590B1 (en) | 1990-02-27 | 1991-02-26 | Metal vapor discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2044415A JP2732455B2 (en) | 1990-02-27 | 1990-02-27 | Metal vapor discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03250550A true JPH03250550A (en) | 1991-11-08 |
| JP2732455B2 JP2732455B2 (en) | 1998-03-30 |
Family
ID=12690871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2044415A Expired - Fee Related JP2732455B2 (en) | 1990-02-27 | 1990-02-27 | Metal vapor discharge lamp |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0444590B1 (en) |
| JP (1) | JP2732455B2 (en) |
| DE (1) | DE69104866T2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008140758A (en) * | 2006-11-02 | 2008-06-19 | Harison Toshiba Lighting Corp | Ultraviolet ray discharge lamp |
| JP2009076396A (en) * | 2007-09-21 | 2009-04-09 | Harison Toshiba Lighting Corp | Metal halide lamp |
| WO2010084771A1 (en) * | 2009-01-26 | 2010-07-29 | ハリソン東芝ライティング株式会社 | Metal halide lamp |
| JP2011204434A (en) * | 2010-03-25 | 2011-10-13 | Harison Toshiba Lighting Corp | Metal halide lamp and ultraviolet irradiation device |
| JP2013026039A (en) * | 2011-07-21 | 2013-02-04 | Gs Yuasa Corp | Metal halide lamp |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5217021B2 (en) * | 2008-05-21 | 2013-06-19 | ハリソン東芝ライティング株式会社 | Metal halide lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2616893A1 (en) * | 1976-04-15 | 1977-11-03 | Patra Patent Treuhand | RADIATION LAMP |
| GB2182486B (en) * | 1985-10-04 | 1990-06-06 | Ushio Electric Inc | Magnesium and iron vapor discharge lamp |
-
1990
- 1990-02-27 JP JP2044415A patent/JP2732455B2/en not_active Expired - Fee Related
-
1991
- 1991-02-26 EP EP19910102794 patent/EP0444590B1/en not_active Revoked
- 1991-02-26 DE DE69104866T patent/DE69104866T2/en not_active Revoked
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008140758A (en) * | 2006-11-02 | 2008-06-19 | Harison Toshiba Lighting Corp | Ultraviolet ray discharge lamp |
| JP2009076396A (en) * | 2007-09-21 | 2009-04-09 | Harison Toshiba Lighting Corp | Metal halide lamp |
| WO2010084771A1 (en) * | 2009-01-26 | 2010-07-29 | ハリソン東芝ライティング株式会社 | Metal halide lamp |
| JPWO2010084771A1 (en) * | 2009-01-26 | 2012-07-19 | ハリソン東芝ライティング株式会社 | Metal halide lamp |
| JP2011204434A (en) * | 2010-03-25 | 2011-10-13 | Harison Toshiba Lighting Corp | Metal halide lamp and ultraviolet irradiation device |
| JP2013026039A (en) * | 2011-07-21 | 2013-02-04 | Gs Yuasa Corp | Metal halide lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2732455B2 (en) | 1998-03-30 |
| DE69104866D1 (en) | 1994-12-08 |
| EP0444590B1 (en) | 1994-11-02 |
| EP0444590A1 (en) | 1991-09-04 |
| DE69104866T2 (en) | 1995-03-30 |
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