JPH1040864A - High-pressure sodium lamp - Google Patents
High-pressure sodium lampInfo
- Publication number
- JPH1040864A JPH1040864A JP19073396A JP19073396A JPH1040864A JP H1040864 A JPH1040864 A JP H1040864A JP 19073396 A JP19073396 A JP 19073396A JP 19073396 A JP19073396 A JP 19073396A JP H1040864 A JPH1040864 A JP H1040864A
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- arc tube
- cesium
- pressure sodium
- getter
- 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.)
- Withdrawn
Links
- 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 title claims abstract description 33
- 239000011734 sodium Substances 0.000 title claims abstract description 33
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 33
- 229910052792 caesium Inorganic materials 0.000 claims abstract description 17
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052724 xenon Inorganic materials 0.000 claims abstract description 8
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052701 rubidium Inorganic materials 0.000 claims description 12
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims description 12
- 150000002484 inorganic compounds Chemical class 0.000 claims description 7
- 229910010272 inorganic material Inorganic materials 0.000 claims description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 238000009877 rendering Methods 0.000 abstract description 9
- BROHICCPQMHYFY-UHFFFAOYSA-N caesium chromate Chemical compound [Cs+].[Cs+].[O-][Cr]([O-])(=O)=O BROHICCPQMHYFY-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011812 mixed powder Substances 0.000 abstract description 4
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052788 barium Inorganic materials 0.000 abstract description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000011521 glass Substances 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- VGFPJJWUVBXOMB-UHFFFAOYSA-N 2-(4-bromophenyl)-7-methylimidazo[1,2-a]pyrimidine Chemical compound N1=C2N=C(C)C=CN2C=C1C1=CC=C(Br)C=C1 VGFPJJWUVBXOMB-UHFFFAOYSA-N 0.000 description 2
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- NLSCHDZTHVNDCP-UHFFFAOYSA-N caesium nitrate Chemical compound [Cs+].[O-][N+]([O-])=O NLSCHDZTHVNDCP-UHFFFAOYSA-N 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- GPMTUSYQFSQOOP-UHFFFAOYSA-L [Cs+].[Cs+].[O-]S(=O)(=O)OS([O-])(=O)=O Chemical compound [Cs+].[Cs+].[O-]S(=O)(=O)OS([O-])(=O)=O GPMTUSYQFSQOOP-UHFFFAOYSA-L 0.000 description 1
- XXTIIKNGGIDZHP-UHFFFAOYSA-L [S-]SS[S-].[Cs+].[Cs+] Chemical compound [S-]SS[S-].[Cs+].[Cs+] XXTIIKNGGIDZHP-UHFFFAOYSA-L 0.000 description 1
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- AYTVLULEEPNWAX-UHFFFAOYSA-N cesium;azide Chemical compound [Cs+].[N-]=[N+]=[N-] AYTVLULEEPNWAX-UHFFFAOYSA-N 0.000 description 1
- AJAFRMGZWFDZAS-UHFFFAOYSA-M cesium;nitrite Chemical compound [Cs+].[O-]N=O AJAFRMGZWFDZAS-UHFFFAOYSA-M 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- HEQUOWMMDQTGCX-UHFFFAOYSA-L dicesium;oxalate Chemical compound [Cs+].[Cs+].[O-]C(=O)C([O-])=O HEQUOWMMDQTGCX-UHFFFAOYSA-L 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- ALTWGIIQPLQAAM-UHFFFAOYSA-N metavanadate Chemical compound [O-][V](=O)=O ALTWGIIQPLQAAM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高演色性を有する
高圧ナトリウム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 high-pressure sodium lamp having high color rendering properties.
【０００２】[0002]
【従来の技術】従来、高圧ナトリウムランプは、透光性
アルミナセラミックよりなる発光管内に、キセノンガス
と発光物質としてのナトリウムおよび緩衝用金属として
の水銀が封入され、ナトリウムおよび水銀はランプ点灯
中に発光管内で蒸発、気化する量以上に封入されてお
り、いわゆる飽和形のランプとされている。なかでも、
演色性改善形の高圧ナトリウムランプは、発光管の最冷
点温度を一般の高圧ナトリウムランプよりも高めること
により実現され、実用化されている。2. Description of the Related Art Conventionally, in a high-pressure sodium lamp, xenon gas, sodium as a luminescent substance and mercury as a buffer metal are sealed in an arc tube made of a translucent alumina ceramic. The lamp is sealed in an amount that evaporates and vaporizes in the arc tube, and is a so-called saturated lamp. Above all,
A high-pressure sodium lamp with improved color rendering has been realized by increasing the coldest point temperature of an arc tube as compared with a general high-pressure sodium lamp, and has been put to practical use.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の飽和形高圧ナトリウムランプでは、定電力形
安定器が使用できないこと、使用する照明器具の大きさ
によってはランプが立ち消えを起こすことがあること、
動程中のランプ電圧上昇に伴い、最終的にランプが点灯
−消灯の繰り返しにより寿命となるという問題があっ
た。However, in such a conventional saturated high-pressure sodium lamp, the constant power ballast cannot be used, and the lamp may go out depending on the size of the lighting equipment used. thing,
As the lamp voltage rises during the operation, there is a problem that the lamp is finally turned on and turned off to reach the end of its life.
【０００４】この問題を解決するため、ナトリウムと水
銀をランプ点灯中、不飽和状態に保つ、いわゆる不飽和
形高圧ナトリウムランプが実用化されている。この場
合、ナトリウムを極微量封入する手段として、特開昭５
２−３２７９号公報に開示されているように、アジ化ナ
トリウムを有機溶剤に溶かして発光管の排気管に導入
し、有機溶剤を蒸発させた後、アジ化ナトリウムを加熱
分解することにより微量のナトリウムのみを発光管内に
残留させて、窒素を排出後に排気管を圧接切断すること
により発光管を製造する手段が採られている。[0004] In order to solve this problem, a so-called unsaturated high-pressure sodium lamp has been put to practical use in which sodium and mercury are kept in an unsaturated state during operation of the lamp. In this case, as means for enclosing a trace amount of sodium,
As disclosed in Japanese Unexamined Patent Publication No. 2-3279, sodium azide is dissolved in an organic solvent, introduced into an exhaust pipe of an arc tube, and evaporated to evaporate the organic solvent. Means for producing an arc tube by leaving only sodium in the arc tube and cutting the exhaust tube by pressure contact after discharging nitrogen is adopted.
【０００５】しかしながら、このような手段は、発光管
に排気管を有しないランプの製造においては使用でき
ず、また、演色性改善形の高圧ナトリウムランプは提供
できないという問題があった。However, such means cannot be used in the manufacture of a lamp having no exhaust tube in the arc tube, and a high-pressure sodium lamp with improved color rendering cannot be provided.
【０００６】本発明は、上記問題点を解決するためにな
されたもので、その目的とするところは、不飽和形であ
りながら演色性を改善できる高圧ナトリウムランプを提
供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a high-pressure sodium lamp capable of improving color rendering while being unsaturated.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
本発明に係る高圧ナトリウムランプは、発光管内に、始
動用および緩衝ガスの役割を果たすキセノンガスと、発
光金属としてのナトリウムと、不純物を吸着するゲッタ
とを封入するとともに、ランプ点灯中に本質的にセシウ
ムまたはルビジムウが不飽和状態になるように、セシウ
ムの無機化合物またはルビジムウの無機化合物を封入し
たことを特徴とするものであり、前記ゲッタはジルコニ
ウムを主体としたゲッタであることが望ましい。According to the present invention, there is provided a high-pressure sodium lamp according to the present invention, comprising a xenon gas serving as a starting gas and a buffer gas, sodium as a luminescent metal, and impurities in an arc tube. In addition to encapsulating a getter to be adsorbed, an inorganic compound of cesium or an inorganic compound of rubidium is encapsulated so that cesium or rubidium is essentially in an unsaturated state during operation of the lamp. The getter is preferably a getter mainly composed of zirconium.
【０００８】[0008]
【作用】本発明によれば、ナトリウムの共鳴線を中心と
する発光に加えて、ランプ点灯中の放電によりセシウム
（またはルビジムウ）の無機化合物から分解生成された
セシウム（またはルビジムウ）による可視全域にわたる
発光によって、演色性が改善された高圧ナトリウムラン
プを得ることができる。According to the present invention, in addition to light emission centered on the resonance line of sodium, the entire visible region of cesium (or rubidium cau) decomposed and generated from an inorganic compound of cesium (or rubidium cau) by discharge during lamp operation is provided. By the light emission, a high-pressure sodium lamp with improved color rendering can be obtained.
【０００９】また、ゲッタはランプ点灯中、発光管内に
放出される酸素、窒素、水分等の不純物を吸着する作用
があり、ナトリウムが不純ガスに吸着され発光に寄与し
なくなるのを防止する。Further, the getter has a function of adsorbing impurities such as oxygen, nitrogen, and moisture released into the arc tube while the lamp is turned on, and prevents sodium from being adsorbed by the impurity gas and not contributing to light emission.
【００１０】ここで、セシウム（またはルビジムウ）を
不飽和状態にする理由は、セシウム（またはルビジム
ウ）が飽和状態ではセシウム（またはルビジムウ）より
励起電圧の高いナトリウムがほとんど発光しなくなり、
効率が非常に低くなるからである。Here, the reason why cesium (or rubidium caud) is made unsaturated is that when cesium (or rubidium caud) is saturated, sodium whose excitation voltage is higher than that of cesium (or rubidium caud) hardly emits light.
This is because the efficiency becomes very low.
【００１１】[0011]
【発明の実施の形態】図１は本発明の一実施形態を示す
一部切欠き断面図である。FIG. 1 is a partially cutaway sectional view showing an embodiment of the present invention.
【００１２】図において、１は透光性アルミナセラミッ
クよりなる発光管で、その寸法は、内径４．７ｍｍ、外
径６．１ｍｍ、全長７４ｍｍである。発光管１の両端に
は、ニオビウム（Ｎｂ）と１％のジルコニウム（Ｚｒ）
からなる導電管２，３が設けられ、その導電管２，３と
発光管１とは、酸化アルミニウム（Ａｌ2 Ｏ3 ）、酸化
イットリウム（Ｙ2 Ｏ3 ）、酸化ストロンチウム（Ｓｒ
Ｏ）、酸化カルシウム（ＣａＯ）からなるフリット４，
５でもって気密に封着されている。また、それぞれの導
電管２，３の発光管１の内部側の先端には電極６，７が
設けられ、両電極６，７間の間隔は５５ｍｍである。Referring to FIG. 1, reference numeral 1 denotes an arc tube made of a translucent alumina ceramic having dimensions of 4.7 mm in inner diameter, 6.1 mm in outer diameter, and 74 mm in overall length. At both ends of the arc tube 1, niobium (Nb) and 1% zirconium (Zr)
The conductive tubes 2 and 3 are made of aluminum oxide (Al 2 O 3 ), yttrium oxide (Y 2 O 3 ), and strontium oxide (Sr).
O), a frit made of calcium oxide (CaO) 4,
5 is hermetically sealed. Electrodes 6 and 7 are provided at the tips of the conductive tubes 2 and 3 on the inner side of the light emitting tube 1, and the distance between the electrodes 6 and 7 is 55 mm.
【００１３】発光管１内には、クロム酸セシウム（Ｃｓ
2 ＣｒＯ4 ）と、ジルコニウム（Ｚｒ）８４％−アルミ
ニウム（Ａｌ）１６％の重量比からなるゲッタとを、重
量比で１：４７６．７の割合で混合した粉末８を０．１
４ｍｇと、ナトリウム０．５ｍｇとキセノンガス４．２
×１０4 Ｐａを封入した。この混合粉末８からはランプ
点灯中、セシウムが０．０００１７ｍｇ生じ、この値は
不飽和状態である。In the arc tube 1, cesium chromate (Cs
2 CrO 4 ) and a getter consisting of 84% zirconium (Zr) -16% aluminum (Al) in a weight ratio of 1: 476.7 at a weight ratio of 0.1 to powder 8;
4 mg, sodium 0.5 mg and xenon gas 4.2
× 10 4 Pa was enclosed. During the operation of the lamp, 0.00017 mg of cesium was generated from the mixed powder 8, and this value was in an unsaturated state.
【００１４】かかる発光管１を直径５０ｍｍの硬質ガラ
スからなる外管９内に収容し、外管９内はバリウムゲツ
タ１０を用いて高真空に排気した。なお、発光管１の外
壁に沿ってほぼ両電極６，７間にわたり近接導体１１を
附設し、その近接導体１１に電位を印加することにより
始動を容易にしている。１２は口金である。The arc tube 1 was housed in an outer tube 9 made of hard glass having a diameter of 50 mm, and the inside of the outer tube 9 was evacuated to a high vacuum using a barium getter 10. A proximity conductor 11 is provided along the outer wall of the arc tube almost between the electrodes 6 and 7, and the starting is facilitated by applying a potential to the proximity conductor 11. 12 is a base.
【００１５】このように構成されたランプをチョーク式
安定器で点灯したところ、ランプ入力１５０Ｗのとき、
ランプ電圧１００Ｖ、ランプ電流１．９Ａで、ランプ効
率１１５１ｌｍ／Ｗ、色温度２３５０Ｋ、平均演色評価
数Ｒａは７０を示した。When the lamp thus constructed is lit by a choke type ballast, when the lamp input is 150 W,
At a lamp voltage of 100 V and a lamp current of 1.9 A, the lamp efficiency was 1151 lm / W, the color temperature was 2350 K, and the average color rendering index Ra was 70.
【００１６】ここで、ジルコニウム−アルミニウムから
なるゲッタは、増量剤としてクロム酸セシウムの正確な
計量を容易にするだけでなく、クロム酸セシウムが分解
するときに発生する酸素を吸着し、かつランプ点灯中、
透光性アルミナセラミックからなる発光管１、電極６，
７、フリット４，５等の発光管構成物から発生する不純
物をも吸着し、セシウムおよびナトリウムが発光に寄与
しなくなるのを防いでいる。Here, the getter made of zirconium-aluminum not only facilitates accurate measurement of cesium chromate as a bulking agent, but also adsorbs oxygen generated when cesium chromate is decomposed and operates the lamp. During,
Light emitting tube 1 made of translucent alumina ceramic, electrode 6,
7, and also absorbs impurities generated from arc tube components such as frit 4, 5 and the like, thereby preventing cesium and sodium from not contributing to luminescence.
【００１７】次に、本発明の異なる実施の形態を説明す
る。発光管の仕様は前記実施形態と同一仕様てあり、異
なる点は発光管内への封入物である。発光管１内には、
クロム酸ルビジムウ（Ｒｂ2 ＣｒＯ4 ）と、ジルコニウ
ム（Ｚｒ）８４％−アルミニウム（Ａｌ）１６％の重量
比からなるゲッタとを、重量比で１：４０９．６の割合
で混合した粉末８を０．１１ｍｇと、ナトリウム０．４
ｍｇとキセノンガス４．２×１０4 Ｐａを封入した。こ
の混合粉末８からはランプ点灯中、ルビジムウが０．０
００１６ｍｇ生じ、この値は不飽和状態である。Next, different embodiments of the present invention will be described. The specifications of the arc tube are the same as those of the above-described embodiment, and the difference is the inclusion inside the arc tube. In the arc tube 1,
Powder 8 in which rubidium chromate (Rb 2 CrO 4 ) and a getter consisting of 84% by weight of zirconium (Zr) -16% by weight of aluminum (Al) were mixed at a weight ratio of 1: 409.6 was mixed with 0. .11 mg and sodium 0.4
mg and 4.2 × 10 4 Pa of xenon gas. From the mixed powder 8, rubidium woo was 0.0% during lamp operation.
0016 mg, which is unsaturated.
【００１８】このように構成されたランプをチョーク式
安定器で点灯したところ、ランプ入力１５０Ｗのとき、
ランプ効率１１０１ｌｍ／Ｗ、色温度２３００Ｋ、平均
演色評価数Ｒａは７２を示した。When the lamp thus configured is lit by a choke type ballast, when the lamp input is 150 W,
The lamp efficiency was 1101 lm / W, the color temperature was 2300 K, and the average color rendering index Ra was 72.
【００１９】なお、上記各実施形態では、セシウム、ル
ビジムウを不飽和に封入する方法として、クロム酸セシ
ウム、クロム酸ルビジムウを用いたが、他の無機化合
物、例えば、セシウムについては、四硫化二セシウム
（Ｃｓ2 Ｓ4 ）、二硫酸セシウム（Ｃｓ2 Ｓ2 Ｏ7 ）、
亜硝酸セシウム（ＣｓＮＯ2 ）、硝酸セシウム（ＣｓＮ
Ｏ 3 ）、メタバナジン酸セシウム（ＣｓＶＯ3 ）、二バ
ナジン酸セシウム（Ｃｓ4Ｖ2 Ｏ7 ）、モリブデン酸セ
シウム（Ｃｓ2 ＭｏＯ4 ）、シュウ酸セシウム（Ｃｓ2
Ｃ2 Ｏ4 ）、アジ化セシウム（Ｃｓ2 Ｎ3 ）等を用いて
もよい。In each of the above embodiments, cesium,
As a method of encapsulating bilium wis unsaturated,
And rubidium chromate, but other inorganic compounds
Substances, for example, for cesium, cesium tetrasulfide
(CsTwoSFour), Cesium disulfate (CsTwoSTwoO7),
Cesium nitrite (CsNOTwo), Cesium nitrate (CsN
O Three), Cesium metavanadate (CsVO)Three), Niba
Cesium Nadate (CsFourVTwoO7), Molybdate
Cium (CsTwoMoOFour), Cesium oxalate (CsTwo
CTwoOFour), Cesium azide (CsTwoNThree)
Is also good.
【００２０】[0020]
【発明の効果】本発明は上記のように、発光管内に、キ
セノンガスとナトリウムとゲッタとを封入するととも
に、ランプ点灯中に本質的にセシウムまたはルビジムウ
が不飽和状態になるようにセシウムの無機化合物または
ルビジムウの無機化合物を封入したことにより、不飽和
形でありながら高演色性を有する高圧ナトリウムランプ
を提供できる。According to the present invention, as described above, xenon gas, sodium and getter are sealed in the arc tube, and cesium or rubidium is essentially in an unsaturated state during operation of the lamp. By enclosing the compound or the inorganic compound of rubidium cau, it is possible to provide a high-pressure sodium lamp having high color rendering properties while being unsaturated.
【図１】本発明の一実施形態を示す一部切欠き断面図で
ある。FIG. 1 is a partially cutaway sectional view showing one embodiment of the present invention.
１ 発光管 ２，３ 導電管 ４，５ フリット ６，７ 電極 ８ 混合粉末 ９ 外管 １０ バリウムゲツタ １１ 近接導体 １２ 口金 REFERENCE SIGNS LIST 1 arc tube 2, 3 conductive tube 4, 5 frit 6, 7 electrode 8 mixed powder 9 outer tube 10 barium getter 11 proximity conductor 12 base
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西岡 浩二 大阪府門真市大字門真1048番地松下電工株 式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Koji Nishioka 1048 Kazuma, Kadoma, Osaka Prefecture Inside Matsushita Electric Works, Ltd.
Claims (3)
発光管を収容する外管とを備えた高圧ナトリウムランプ
において、前記発光管内に、キセノンガスとナトリウム
とゲッタとを封入するとともに、ランプ点灯中に本質的
にセシウムが不飽和状態になるようにセシウムの無機化
合物を封入したことを特徴とする高圧ナトリウムラン
プ。1. A high-pressure sodium lamp having an arc tube formed of a translucent material and an outer tube for accommodating the arc tube, wherein xenon gas, sodium and a getter are sealed in the arc tube. A high-pressure sodium lamp in which an inorganic compound of cesium is sealed so that cesium is essentially in an unsaturated state during operation of the lamp.
発光管を収容する外管とを備えた高圧ナトリウムランプ
において、前記発光管内に、キセノンガスとナトリウム
とゲッタとを封入するとともに、ランプ点灯中に本質的
にルビジムウが不飽和状態になるようにルビジムウの無
機化合物を封入したことを特徴とする高圧ナトリウムラ
ンプ。2. A high-pressure sodium lamp including an arc tube formed of a translucent material and an outer tube for accommodating the arc tube, wherein xenon gas, sodium, and a getter are sealed in the arc tube. A high-pressure sodium lamp characterized in that rubidium woo is filled with an inorganic compound so that rubidium woo is essentially unsaturated during lamp operation.
ゲッタである請求項１または請求項２記載の高圧ナトリ
ウムランプ。3. The high-pressure sodium lamp according to claim 1, wherein the getter is a getter mainly composed of zirconium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19073396A JPH1040864A (en) | 1996-07-19 | 1996-07-19 | High-pressure sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19073396A JPH1040864A (en) | 1996-07-19 | 1996-07-19 | High-pressure sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1040864A true JPH1040864A (en) | 1998-02-13 |
Family
ID=16262885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19073396A Withdrawn JPH1040864A (en) | 1996-07-19 | 1996-07-19 | High-pressure sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1040864A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7474051B2 (en) | 2003-01-17 | 2009-01-06 | Hamamatsu Photonics K.K. | Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube |
| US7772771B2 (en) | 2003-01-17 | 2010-08-10 | Hamamatsu Photonics K.K. | Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube |
-
1996
- 1996-07-19 JP JP19073396A patent/JPH1040864A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7474051B2 (en) | 2003-01-17 | 2009-01-06 | Hamamatsu Photonics K.K. | Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube |
| US7772771B2 (en) | 2003-01-17 | 2010-08-10 | Hamamatsu Photonics K.K. | Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20031007 |