JPH08162068A - Low power type metal halide lamp - Google Patents
Low power type metal halide lampInfo
- Publication number
- JPH08162068A JPH08162068A JP32389594A JP32389594A JPH08162068A JP H08162068 A JPH08162068 A JP H08162068A JP 32389594 A JP32389594 A JP 32389594A JP 32389594 A JP32389594 A JP 32389594A JP H08162068 A JPH08162068 A JP H08162068A
- Authority
- JP
- Japan
- Prior art keywords
- arc tube
- tube
- metal halide
- halide lamp
- iodide
- 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.)
- Pending
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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010453 quartz Substances 0.000 claims abstract description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 3
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052753 mercury Inorganic materials 0.000 claims description 7
- GQKYKPLGNBXERW-UHFFFAOYSA-N 6-fluoro-1h-indazol-5-amine Chemical compound C1=C(F)C(N)=CC2=C1NN=C2 GQKYKPLGNBXERW-UHFFFAOYSA-N 0.000 claims description 5
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- CMJCEVKJYRZMIA-UHFFFAOYSA-M thallium(i) iodide Chemical compound [Tl]I CMJCEVKJYRZMIA-UHFFFAOYSA-M 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 2
- DKSXWSAKLYQPQE-UHFFFAOYSA-K neodymium(3+);triiodide Chemical compound I[Nd](I)I DKSXWSAKLYQPQE-UHFFFAOYSA-K 0.000 claims description 2
- 238000009877 rendering Methods 0.000 abstract description 14
- 229910052692 Dysprosium Inorganic materials 0.000 description 5
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 229910052716 thallium Inorganic materials 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 description 2
- 229910052792 caesium Inorganic materials 0.000 description 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 dysprosium halide Chemical class 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は管入力１００ｗ以下の高
演色形のメタルハライドランプに関し、特にその発光管
形状の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high color rendering type metal halide lamp having a tube input of 100 w or less, and more particularly to improvement of the arc tube shape.
【０００２】[0002]
【従来の技術】一般に、石英製発光管の両端にタングス
テン電極を封着し内部に金属ハロゲン化物を封入したメ
タルハライドランプは、高効率、高演色で、かつ長寿命
であることから、屋内外の一般照明から各種光学装置等
の光源として使用されている。この種ランプとして、主
として発光効率を重視したスカンジウム（Ｓｃ）−ナト
リウム（Ｎａ）系のメタルハライドランプと、主として
演色性を重視したディスプロシウム（Ｄｙ）−タリウム
（Ｔｌ）系のランプがよく知られている。近年、省電力
の観点から発光効率の優れた管入力１００Ｗ以下の低電
力形のメタルハライドランプが、蛍光ランプや白熱電球
あるいはハロゲン電球に変わり使用されている。2. Description of the Related Art Generally, a metal halide lamp in which a tungsten electrode is sealed at both ends of a quartz arc tube and a metal halide is sealed inside has high efficiency, high color rendering, and a long life. It is used as a light source for general lighting and various optical devices. Well-known examples of this type of lamp are a scandium (Sc) -sodium (Na) -based metal halide lamp that mainly emphasizes luminous efficiency and a dysprosium (Dy) -thallium (Tl) -based lamp that mainly emphasizes color rendering. ing. In recent years, from the viewpoint of power saving, a low power type metal halide lamp with a tube input of 100 W or less, which has excellent luminous efficiency, has been used instead of a fluorescent lamp, an incandescent lamp or a halogen lamp.
【０００３】特に、店舗等の屋内の商業施設用照明器具
の光源として用いる場合、効率がよくて明るいだけでな
く、物の色の見え方が自然に近くかつその雰囲気を醸し
出すという演色性の良否が重視される。そして、ランプ
の発光色が３０００Ｋ〜５０００Ｋという比較的低色温
度のランプが求められている。そこで、発光管添加物と
してのディスプロシウム、タリウム及びセシウムのハロ
ゲン化物を用いて、発光管内の温度を十分に上げること
により、可視域全体にわたってディスプロシウムの連続
発光が得られ、平均演色評価数が９０以上という高演色
で、かつランプの色温度が５０００Ｋ以下という低色温
度のランプが提案されている。In particular, when it is used as a light source for an indoor lighting fixture for commercial facilities such as a store, it is not only efficient and bright, but also the color rendering property that the appearance of colors of objects is close to natural and creates an atmosphere. Is emphasized. And, a lamp having a relatively low color temperature of 3000K to 5000K is required. Therefore, by using the halides of dysprosium, thallium, and cesium as an arc tube additive, and raising the temperature inside the arc tube sufficiently, continuous luminescence of dysprosium was obtained over the entire visible range, and the average color rendering evaluation Lamps having a high color rendering of 90 or more and a low color temperature of 5000K or less have been proposed.
【０００４】[0004]
【発明が解決しようとする課題】一般に、メタルハライ
ドランプは管入力が小さくなるに従って、発光管寸法が
小さくなるが、発光管両端の封着部からの熱伝導損失や
熱輻射損失の比率が増加して発光効率や色特性が低下し
てしまう。特に、ディスプロシウムのハロゲン化物は蒸
気圧が極めて低いことから、十分に発光させ平均演色評
価数を９０以上とするためには発光管端部の最冷部温度
を高める必要があり、発光管を小型化し、非常に高い管
壁負荷を有するような構造となっている。このため、発
光管最冷部温度が高められると同時に、他の部分の温度
も高まり、発光管の管壁と封入している金属ハロゲン化
物との反応が活発となり、ランプ点灯中に発光管内壁の
侵食及びその失透が進行することとなる。そして、ラン
プ光束や色温度等の諸特性が点灯時間の経過と共に変化
して、ついには発光管の変形及び発光管リーク等が発生
して、ランプ不良となる。Generally, in a metal halide lamp, the size of the arc tube becomes smaller as the tube input becomes smaller, but the ratio of heat conduction loss and heat radiation loss from the sealed portions at both ends of the arc tube increases. As a result, the luminous efficiency and the color characteristics deteriorate. In particular, since the vapor pressure of dysprosium halide is extremely low, it is necessary to raise the temperature of the coldest part at the end of the arc tube in order to achieve sufficient light emission and an average color rendering index of 90 or more. And has a structure that has a very high tube wall load. As a result, the temperature of the coldest part of the arc tube rises, and at the same time, the temperature of other parts also rises, and the reaction between the tube wall of the arc tube and the enclosed metal halide becomes active, and the inner wall of the arc tube becomes active while the lamp is on. Erosion and devitrification thereof will progress. Then, various characteristics such as the luminous flux of the lamp and the color temperature change with the passage of the lighting time, and finally the arc tube is deformed and the arc tube leaks, resulting in a lamp failure.
【０００５】本発明は、前記に鑑みてなされてもので、
高効率で、演色性等の色特性が優れているばかりでな
く、長寿命である低電力形のメタルハライドランプを提
供することを目的とする。The present invention has been made in view of the above,
It is an object of the present invention to provide a low-power type metal halide lamp which has high efficiency and excellent color characteristics such as color rendering properties and has a long life.
【０００６】[0006]
【課題を解決するための手段】本発明は、石英管の両端
に少なくとも主電極を封着し、内部に不活性ガス及び水
銀と共に少なくとも希土類金属ハロゲン化物を封入して
なる発光管を外球内に保持してなる管入力１００ｗ以下
のメタルハライドランプにおいて、前記外球内は真空
で、発光管形状は略回転楕円体形状であり、発光管壁面
負荷が１４〜２３ｗ／cm2 とし、かつ発光管重量Ｗ
（ｇ）と管入力Ｐ（ｗ）との比（Ｗ／Ｐ）を０．０３９
以下と規定してなる。又、前記発光管の外周に長手方向
にわたって円筒状の石英管を配置して前記外球内に保持
してなる。更に、前記発光管内にアルゴンガス及び水銀
と共にヨウ化ディスプロシウム及びヨウ化セシウムとヨ
ウ化タリウムあるいはヨウ化ネオジウム封入してなる。SUMMARY OF THE INVENTION According to the present invention, a quartz tube is sealed with at least a main electrode at both ends thereof, and an arc tube having an inert gas and mercury and at least a rare earth metal halide enclosed therein is provided in an outer bulb. In a metal halide lamp having a tube input of 100 w or less, the inside of the outer bulb is vacuum, the arc tube shape is a substantially spheroidal shape, the arc tube wall load is 14 to 23 w / cm 2 , and the arc tube is Weight W
The ratio (W / P) between (g) and the pipe input P (w) is 0.039.
It is defined as follows. Further, a cylindrical quartz tube is arranged on the outer circumference of the arc tube in the longitudinal direction and is held in the outer sphere. Further, dysprosium iodide, cesium iodide and thallium iodide or neodymium iodide are enclosed together with argon gas and mercury in the arc tube.
【０００７】[0007]
【作用】本発明は前記構成により、外球内の熱ロスを極
力小さくすることができ、発光管表面温度をほぼ均一と
して部分的に高温となる個所をなくし、ランプの良好な
発光特性を維持できるように発光管温度を低く抑えるこ
とができ、かつ発光管の最冷部温度を所定の蒸気圧が得
られるのに必要な温度に高めることができる。又、発光
管の保温及び不慮の事故による外球破損等を防止するこ
とができる。更に、物の色の見え方を自然に近くするこ
とができる。According to the present invention, the heat loss in the outer bulb can be minimized by the above-mentioned structure, and the surface temperature of the arc tube is made substantially uniform so that there is no part where the temperature becomes high and the good light emission characteristics of the lamp are maintained. As a result, the temperature of the arc tube can be kept low, and the temperature of the coldest part of the arc tube can be raised to the temperature required to obtain a predetermined vapor pressure. Further, it is possible to prevent the outer bulb from being damaged due to heat retention of the arc tube and an unexpected accident. Furthermore, the appearance of the color of an object can be made closer to natural.
【０００８】[0008]
【実施例】以下、本発明を図示の実施例に基づき説明す
る。図１はメタルハライドランプの側面図、図２は同発
光管の側面図であり、図中１は石英ガラス製の発光管で
あり、両端に主電極２ａ，２ｂを封着し、内部にアルゴ
ンガスと水銀及びヨウ化ディスプロシウム、ヨウ化タリ
ウム、ヨウ化セシウムが封入されている。又、発光管の
電極周辺部の外面には保温膜３，３が被着されている。
４は石英ガラス製の円筒管であり、発光管の外周にその
全長にわたって配置されている。そして、一端に口金５
を有する硬質ガラス製の外球６内のステム７に植立した
一対のリード線を兼ねたステンレス製の支柱８ａ，８ｂ
を介して発光管１が支持され、かつ円筒管は前記支柱８
ａ，８ｂ及びバネ状の止め金具９ａ，９ｂを介して支持
されている。又、外球６内は真空とされている。なお、
図中１０はジルコニウム−アルミニウムゲッターを示
す。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiments. FIG. 1 is a side view of a metal halide lamp, and FIG. 2 is a side view of the same arc tube. In FIG. 1, 1 is a quartz glass arc tube, and main electrodes 2a and 2b are sealed at both ends, and argon gas is contained inside. And mercury, dysprosium iodide, thallium iodide, and cesium iodide. Further, heat insulating films 3 and 3 are attached to the outer surface of the peripheral portion of the electrodes of the arc tube.
Reference numeral 4 denotes a quartz glass cylindrical tube, which is arranged over the entire length of the outer circumference of the arc tube. And the base 5 at one end
Pillars 8a, 8b made of stainless steel, which also function as a pair of lead wires, erected on the stem 7 in the outer bulb 6 made of hard glass
The arc tube 1 is supported via the
It is supported via a, 8b and spring-like stoppers 9a, 9b. The inside of the outer sphere 6 is evacuated. In addition,
In the figure, 10 indicates a zirconium-aluminum getter.
【０００９】又、発光管１は図２に示すように、石英管
の両端に封着部１１ａ，１１ｂを形成し、該封着部には
一対のモリブデン箔１２ａ，１２ｂを介してタングステ
ンよりなる主電極２ａ，２ｂと外部リード線１３ａ，１
３ｂが一体的に埋設されている。ここで、発光管の中央
発光部１ａは回転楕円面体状に形成されている。そし
て、電極周辺部の外周には酸化ジルコニウムからなる白
色の保温膜３，３が被着されている。Further, as shown in FIG. 2, the arc tube 1 has sealing portions 11a and 11b formed at both ends of a quartz tube, and the sealing portion is made of tungsten via a pair of molybdenum foils 12a and 12b. Main electrodes 2a, 2b and external lead wires 13a, 1
3b is embedded integrally. Here, the central light emitting portion 1a of the arc tube is formed in a spheroidal shape. Then, white heat insulating films 3 made of zirconium oxide are applied to the outer periphery of the electrode peripheral portion.
【００１０】次に、実験例について説明する。前記のよ
うに構成した７０ｗのメタルハライドランプにおいて、
図２に示す発光管構造で、内部にアルゴンガスを２００
torr、水銀を１０．８mg／cc及びヨウ化ディスプロシウ
ムを０．９mg／cc、ヨウ化タリウムを０．３mg／cc、ヨ
ウ化セシウムを０．４mg／cc封入した発光管の壁面負荷
（ｗ／cm2）と発光管重量Ｗ（ｇ）とを変えたランプを
試作して点灯実験した。その実験結果を図３に示す。こ
こで、ランプは発光管重量Ｗ（ｇ）と管入力Ｐ（ｗ）
との比Ｗ／Ｐ＝０．０３５、ランプはＷ／Ｐ＝０．０
３９、ランプはＷ／Ｐ＝０．０４５の場合を示す。そ
して、前記各ランプにおける、発光管の壁面負荷を変化
させた場合の平均演色評価数Ｒａの推移を表わす。Next, an experimental example will be described. In the 70w metal halide lamp configured as described above,
The arc tube structure shown in FIG.
Torr, 10.8 mg / cc of mercury, 0.9 mg / cc of dysprosium iodide, 0.3 mg / cc of thallium iodide, and 0.4 mg / cc of cesium iodide. / Cm 2 ) and the arc tube weight W (g) were changed, and a lamp was experimentally produced and tested. The experimental results are shown in FIG. Here, the lamp has an arc tube weight W (g) and a tube input P (w).
With the ratio W / P = 0.035, lamp W / P = 0.0
39, the lamp shows the case of W / P = 0.045. Then, the transition of the average color rendering index Ra in each lamp is shown when the wall load of the arc tube is changed.
【００１１】図３から明らかなように、Ｗ／Ｐ＝０．０
３９の場合壁面負荷が１４ｗ／cm2未満では高演色性を
表わすＲａが９０以上という効果は認められない。又、
壁面負荷が１４ｗ／cm2 以上でもＷ／Ｐの値が０．０３
９を超えるとＲａが９０より下がることとなる。これ
は、発光管の温度分布が不均一となり、発光管両端部温
度が低くなるからである。更に、壁面負荷が２３ｗ／cm
2 を超えると、発光管温度が高くなり過ぎ、早期に発光
管のリーク等が生じ短寿命となることがある。このこと
より、発光管壁面負荷を１４〜２３ｗ／cm2 とし、かつ
発光管重量と管入力との比（Ｗ／Ｐ）を０．０３９以下
に選定する必要がある。As is apparent from FIG. 3, W / P = 0.0
In the case of 39, when the wall surface load is less than 14 w / cm 2 , the effect of Ra of 90 or more showing high color rendering is not recognized. or,
The value of W / P is 0.03 even when the wall load is 14 w / cm 2 or more.
If it exceeds 9, Ra will be lower than 90. This is because the temperature distribution of the arc tube becomes non-uniform and the temperature at both ends of the arc tube becomes low. Furthermore, the wall load is 23w / cm
If it exceeds 2 , the temperature of the arc tube becomes too high, and the arc tube may leak early and its life may be shortened. For this reason, it is necessary to set the wall load of the arc tube to 14 to 23 w / cm 2 and to select the ratio (W / P) of the arc tube weight to the tube input to 0.039 or less.
【００１２】このように、外球内を真空とするのは、ガ
スの対流による熱ロスを極力小さくするためであり、発
光管形状を略回転楕円体形状とするのは、発光管表面温
度をほぼ均一として部分的に高温となる個所をなくすた
めである。又、発光管壁面負荷を１４〜２３ｗ／cm2 と
することにより、ランプの良好な発光特性を維持できる
ように発光管温度を低く抑えることができ、長寿命とす
ることができ、発光管重量Ｗ（ｇ）と管入力Ｐ（ｗ）と
の比（Ｗ／Ｐ）を０．０３９以下とすることにより、発
光管の最冷部温度を所定の蒸気圧が得られるのに必要な
温度に高めることができる。As described above, the vacuum in the outer bulb is to minimize the heat loss due to the convection of gas, and the arc tube shape is made substantially spheroidal so that the surface temperature of the arc tube is changed. This is to eliminate a part where the temperature becomes substantially uniform and partially becomes high temperature. Also, by setting the load on the wall surface of the arc tube to be 14 to 23 w / cm 2 , the temperature of the arc tube can be kept low so that the good light emission characteristics of the lamp can be maintained, and the life can be extended. By setting the ratio (W / P) of W (g) to the tube input P (w) to be 0.039 or less, the temperature of the coldest part of the arc tube becomes a temperature necessary for obtaining a predetermined vapor pressure. Can be increased.
【００１３】前記と同様の試験を管入力が１００ｗ及び
５０ｗのランプについて行なったが、前記とほぼ同様な
結果が得られた。しかし、１００ｗを超える１５０ｗあ
るいは２００ｗ以上のランプでは前記傾向は確認できな
かった。又、前記実施例では発光管添加物としてディス
プロシウム、タリウム及びセシウムを封入したランプに
ついて説明したが、添加物としてディスプロシウム、ネ
オジウム及びセシウムを封入したランプは色温度が６５
００Ｋ程度となると共に、前記とほぼ同様な効果も認め
られる。The same test as described above was carried out for lamps having a tube input of 100w and 50w, and substantially the same result as the above was obtained. However, the above-mentioned tendency could not be confirmed in the lamp of more than 100w and 150w or 200w or more. Also, in the above-mentioned embodiment, the lamp in which dysprosium, thallium, and cesium are enclosed as an arc tube additive has been described.
At around 00K, almost the same effect as described above is also observed.
【００１４】[0014]
【発明の効果】以上のように、本発明に係わる低電力形
メタルハライドランプは、発光管形状を規定することに
より、色温度３０００Ｋ〜６５００Ｋのランプが得ら
れ、平均演色評価数も９０以上という高演色性であるば
かりでなく、発光効率が高くかつ長寿命であるという利
点がある。As described above, the low power type metal halide lamp according to the present invention can obtain a lamp having a color temperature of 3000K to 6500K by defining the shape of the arc tube, and the average color rendering index is as high as 90 or more. In addition to the color rendering properties, there are advantages that the luminous efficiency is high and the life is long.
【図１】本発明に係わるメタルハライドランプの一実施
例を示す側面図。FIG. 1 is a side view showing an embodiment of a metal halide lamp according to the present invention.
【図２】同発光管の側面図。FIG. 2 is a side view of the arc tube.
【図３】本発明ランプと比較ランプの発光管壁面負荷と
平均演色評価数との関係を示す特性図。FIG. 3 is a characteristic diagram showing the relationship between the arc tube wall surface load and the average color rendering index of the lamp of the present invention and the comparative lamp.
１ 石英製発光管 ２ａ，２ｂ 主電極 ３ 保温膜 ４ 円筒管 ５ 口金 ６ 外球 ７ ステム ８ａ，８ｂ 支柱 ９ａ，９ｂ 止め金具 １０ ジルコニウム−アルミニウムゲッター １１ａ，１１ｂ 封着部 １２ａ，１２ｂ モリブデン箔 １３ａ，１３ｂ 外部リード線 DESCRIPTION OF SYMBOLS 1 Quartz arc tube 2a, 2b Main electrode 3 Thermal insulation film 4 Cylindrical tube 5 Base 6 Outer bulb 7 Stem 8a, 8b Struts 9a, 9b Stopper 10 Zirconium-aluminum getter 11a, 11b Sealing part 12a, 12b Molybdenum foil 13a, 13b External lead wire
Claims (4)
し、内部に不活性ガス及び水銀と共に少なくとも希土類
金属ハロゲン化物を封入してなる発光管を外球内に保持
してなる管入力１００ｗ以下のメタルハライドランプに
おいて、前記外球内は真空で、発光管形状は略回転楕円
体形状であり、発光管壁面負荷が１４〜２３ｗ／cm2 と
し、かつ発光管重量Ｗ（ｇ）と管入力Ｐ（ｗ）との比
（Ｗ／Ｐ）を０．０３９以下と規定してなる低電力形メ
タルハライドランプ。1. A tube input 100w in which at least a main electrode is sealed at both ends of a quartz tube, and an arc tube in which at least a rare earth metal halide is enclosed together with an inert gas and mercury is held in an outer bulb. In the following metal halide lamp, the inside of the outer bulb is vacuum, the arc tube shape is a substantially spheroidal shape, the arc tube wall surface load is 14 to 23 w / cm 2 , and the arc tube weight W (g) and the tube input. A low-power metal halide lamp in which the ratio (W / P) with P (w) is specified to be 0.039 or less.
円筒状の石英管を配置して前記外球内に保持してなる請
求項１記載の低電力形メタルハライドランプ。2. The low-power metal halide lamp according to claim 1, wherein a cylindrical quartz tube is arranged on the outer circumference of the arc tube in the longitudinal direction and is held in the outer bulb.
共にヨウ化ディスプロシウム、ヨウ化タリウム及びヨウ
化セシウムを封入してなる請求項１又は２記載の低電力
形メタルハライドランプ。3. The low-power metal halide lamp according to claim 1, wherein dysprosium iodide, thallium iodide, and cesium iodide are enclosed together with argon gas and mercury in the arc tube.
共にヨウ化ディスプロシウム、ヨウ化ネオジウム及びヨ
ウ化セシウムを封入してなる請求項１又は２記載の低電
力形メタルハライドランプ。4. The low-power metal halide lamp according to claim 1, wherein dysprosium iodide, neodymium iodide and cesium iodide are enclosed together with argon gas and mercury in the arc tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32389594A JPH08162068A (en) | 1994-11-30 | 1994-11-30 | Low power type metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32389594A JPH08162068A (en) | 1994-11-30 | 1994-11-30 | Low power type metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08162068A true JPH08162068A (en) | 1996-06-21 |
Family
ID=18159813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32389594A Pending JPH08162068A (en) | 1994-11-30 | 1994-11-30 | Low power type metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08162068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013532888A (en) * | 2010-07-28 | 2013-08-19 | オスラム ゲーエムベーハー | High-pressure discharge lamp containing dysprosium halide |
-
1994
- 1994-11-30 JP JP32389594A patent/JPH08162068A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013532888A (en) * | 2010-07-28 | 2013-08-19 | オスラム ゲーエムベーハー | High-pressure discharge lamp containing dysprosium halide |
| US8853943B2 (en) | 2010-07-28 | 2014-10-07 | Osram Ag | Dysprosium-halide-containing high-pressure discharge lamp |
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