JPH0524617B2 - - Google Patents
Info
- Publication number
- JPH0524617B2 JPH0524617B2 JP58122511A JP12251183A JPH0524617B2 JP H0524617 B2 JPH0524617 B2 JP H0524617B2 JP 58122511 A JP58122511 A JP 58122511A JP 12251183 A JP12251183 A JP 12251183A JP H0524617 B2 JPH0524617 B2 JP H0524617B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- pressure sodium
- arc tube
- sodium 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.)
- Expired - Lifetime
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 claims description 40
- 229910052708 sodium Inorganic materials 0.000 claims description 40
- 239000011734 sodium Substances 0.000 claims description 40
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- MJGFBOZCAJSGQW-UHFFFAOYSA-N mercury sodium Chemical compound [Na].[Hg] MJGFBOZCAJSGQW-UHFFFAOYSA-N 0.000 description 3
- 229910001023 sodium amalgam Inorganic materials 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000007858 starting material Substances 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
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/825—High-pressure sodium lamps
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Description
産業上の利用分野
本発明は、高圧ナトリウム放電灯を投光器と組
み合わせた高圧ナトリウム放電装置に関するもの
である。
従来例の構成とその問題点
高圧ナトリウム放電灯は、水銀灯に比べて約２
倍の高効率を有し、省エネルギー時代に適した灯
として注目され、多く使用されるようになつてき
ている。
ところが、従来、このような高圧ナトリウム放
電灯を投光器、とくに既設の水銀灯用投光器と組
み合わせて点灯した場合には、灯を裸の状態で点
灯した場合に比べてランプ電圧が上昇し、時には
立消えに至ることがあつた。
発明の目的
本発明は、このような問題を除去するためにな
されたもので、投光器と組み合わせて点灯して
も、ランプ電圧の上昇が小さく、立消えの生じな
い高圧ナトリウム放電灯を備えた高圧ナトリウム
放電装置を提供するものである。
発明の構成
本発明は、発光管の両側に熱保護膜を備え、か
つ、口金側の熱保護膜を反口金側の熱保護膜より
長くした高圧ナトリウム放電灯を投光器と組み合
わせ、ランプ電圧の上昇を抑制するようにしたも
のである。
実施例の説明
以下、本発明の実施例について図面を用いて説
明する。
第１図は本発明の実施例である高圧ナトリウム
放電装置を示し、第２図は本発明の装置に用いら
れる高圧ナトリウム放電灯の一例を示し、第３図
は本発明の装置に用いられる高圧ナトリウム放電
灯の熱保護膜を備えた発光管の一例を示し、第４
図は高圧ナトリウム放電灯の点灯回路を示してい
る。
第１図に示すように、本発明実施例の高圧ナト
リウム放電装置は、高圧ナトリウム放電灯１と投
光器２とを有している。
高圧ナトリウム放電灯１は、第２図に示すよう
に、両端部に電極が設けられ、内部にナトリウ
ム、緩衝ガス用金属および始動用希ガスが封入さ
れた発光管３と、ゲツタ４により真空にされた内
部に、熱保護膜５，６の備えた発光管３を組み込
まれ、かつ口金７が取り付けられた外管８と、発
光管３に電力を供給し、かつこれを支持するため
のステム線９，１０とを備え、さらに発光管３と
並列にヒータ１１とこのヒータ１１の熱によつて
開放される常閉形のバイメタルスイツチなどから
なる熱応動スイツチ１２との直列体（スタータユ
ニツト）１３が接続され、かつ発光管３の外面に
は、始動補助導体１４が付設され、この始動補助
導体１４は、点灯中バイメタルスイツチなどの熱
応動スイツチ１５が開放することによつて電気的
に浮いた状態に保たれるようになつている。
このような高圧ナトリウム放電灯は、第３図に
示すように、発光管３の両側に熱保護膜５，６を
備え、かつ口金側の熱保護膜５の長さＡが反口金
側の熱保護膜６の長さＢより長く（Ａ＞Ｂ）なつ
ている。
このような高圧ナトリウム放電灯の点灯回路自
体は、第４図に示すように、従来と変わりがな
い。
いま、第４図に示すように、単一チヨーク形安
定器１６を介して電源電圧が高圧ナトリウム放電
灯１に印加されると、すでによく知られた動作に
より、発光管３の両電極間に放電が開始し、高圧
ナトリウム放電灯１は点灯する。
本発明実施例の高圧ナトリウム放電装置によれ
ば、高圧ナトリウム放電灯１が、発光管３の両端
に熱保護膜５，６を備え、かつ口金側の熱保護膜
５の長さを反口金側の熱保護膜６の長さより長く
しているため、従来と異なり最冷点部は、発光管
の反口金側に形成され、余剰ナトリウムアマルガ
ムは、発光管の反口金端部に存在する。したがつ
てこの放電灯を投光器内で点灯した場合、投光器
内面からの反射が多い発光管の口金側端部には余
剰ナトリウムアマルガムは存在しないため、余剰
ナトリウムアマルガムの蒸発は極めて少なく、ラ
ンプ電圧の上昇を小さくすることができ、立消え
が生じないことが実験的に確認された。
次に、本発明の効果を確認した実験例について
説明する。
実験例 １
発光管構造
寸法：内径8.5mm、全長77.0mm
材質：多結晶アルミナ
電極間距離：48.0mm
電極長：14.5mm（口金側、反口金側ともに同じ）
封入物：ナトリウム35.0mg
水銀 17.0mg
キセノンガス 250Torr
上記発光管を２本作製し、同一発光管にて口金
側の熱保護膜の長さを反口金側の熱保護膜の長さ
より２mmおよび３mm長くした本発明の装置におけ
る高圧ナトリウム放電灯（以下本発明放電灯とい
う）（第２図に示す構造）、および、同一発光管に
て口金側の熱保護膜の長さと反口金側の熱保護膜
の長さを等しくした従来の装置における高圧ナト
リウム放電灯（以下従来放電灯という）を作製
し、裸の状態および投光器内で、水銀灯300W用
安定器を用いて電源電圧200V一定（60Hz）で点
灯したときのランプ電圧を測定したところ、第１
表に示すとおりの結果となつた。
INDUSTRIAL APPLICATION FIELD The present invention relates to a high-pressure sodium discharge device that combines a high-pressure sodium discharge lamp with a floodlight. Conventional structure and its problems High-pressure sodium discharge lamps are approximately 2 times larger than mercury lamps.
It has double the efficiency and is attracting attention as a light suitable for the energy-saving era, and is increasingly being used. However, conventionally, when such a high-pressure sodium discharge lamp was lit in combination with a floodlight, especially an existing mercury lamp floodlight, the lamp voltage increased compared to when the lamp was lit without a lamp, and the lamp sometimes went out. Something happened. Purpose of the Invention The present invention was made to eliminate such problems, and is a high-pressure sodium discharge lamp equipped with a high-pressure sodium discharge lamp that has a small increase in lamp voltage and does not turn off even when lit in combination with a floodlight. A discharge device is provided. Structure of the Invention The present invention combines a high-pressure sodium discharge lamp with thermal protection films on both sides of the arc tube and in which the thermal protection film on the base side is longer than the heat protection film on the opposite side of the base with a floodlight to increase the lamp voltage. It is designed to suppress the DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a high-pressure sodium discharge device as an embodiment of the present invention, FIG. 2 shows an example of a high-pressure sodium discharge lamp used in the device of the present invention, and FIG. 3 shows a high-pressure sodium discharge lamp used in the device of the present invention. An example of an arc tube with a thermal protection film of a sodium discharge lamp is shown, and the fourth
The figure shows the lighting circuit for a high-pressure sodium discharge lamp. As shown in FIG. 1, the high-pressure sodium discharge device according to the embodiment of the present invention includes a high-pressure sodium discharge lamp 1 and a floodlight 2. As shown in FIG. As shown in FIG. 2, the high-pressure sodium discharge lamp 1 consists of an arc tube 3 that has electrodes at both ends and is filled with sodium, a buffer gas metal, and a starting rare gas, and a getter 4 that creates a vacuum. An outer tube 8 into which the arc tube 3 provided with the heat protection films 5 and 6 is installed and a cap 7 attached, and a stem for supplying power to the arc tube 3 and supporting it. A series body (starter unit) 13 comprising wires 9 and 10, and a thermally responsive switch 12 consisting of a heater 11 and a normally closed bimetal switch that is opened by the heat of the heater 11 in parallel with the arc tube 3. is connected, and a starting auxiliary conductor 14 is attached to the outer surface of the arc tube 3, and this starting auxiliary conductor 14 is electrically floated when a thermally responsive switch 15 such as a bimetal switch is opened during lighting. It is designed to be kept in good condition. As shown in FIG. 3, such a high-pressure sodium discharge lamp is equipped with heat protection films 5 and 6 on both sides of the arc tube 3, and the length A of the heat protection film 5 on the base side is equal to the heat on the opposite side of the base. It is longer than the length B of the protective film 6 (A>B). The lighting circuit itself for such a high-pressure sodium discharge lamp is the same as the conventional one, as shown in FIG. Now, as shown in FIG. 4, when a power supply voltage is applied to the high-pressure sodium discharge lamp 1 through the single choke-type ballast 16, a voltage is generated between the two electrodes of the arc tube 3 due to a well-known operation. Discharge starts and the high pressure sodium discharge lamp 1 lights up. According to the high-pressure sodium discharge device of the embodiment of the present invention, the high-pressure sodium discharge lamp 1 includes the heat protection films 5 and 6 at both ends of the arc tube 3, and the length of the heat protection film 5 on the base side is set on the side opposite to the base. Because the length is longer than the length of the thermal protection film 6, unlike the conventional case, the coldest spot is formed on the side opposite to the cap of the arc tube, and the excess sodium amalgam is present at the end of the arc tube opposite to the cap. Therefore, when this discharge lamp is lit in a floodlight, there is no excess sodium amalgam at the base end of the arc tube where there are many reflections from the inside of the floodlight, so evaporation of excess sodium amalgam is extremely small, and the lamp voltage is reduced. It has been experimentally confirmed that the rise can be reduced and no fading occurs. Next, an experimental example in which the effects of the present invention were confirmed will be described. Experimental example 1 Arc tube structural dimensions: inner diameter 8.5 mm, total length 77.0 mm Material: polycrystalline alumina Distance between electrodes: 48.0 mm Electrode length: 14.5 mm (same on cap side and opposite cap side) Filled materials: Sodium 35.0 mg Mercury 17.0 mg Xenon gas 250Torr Two of the above arc tubes were made, and the length of the thermal protection film on the cap side was 2 mm and 3 mm longer than the length of the heat protection film on the opposite cap side in the same arc tube. An electric lamp (hereinafter referred to as the discharge lamp of the present invention) (structure shown in Fig. 2), and a conventional device in which the length of the thermal protection film on the base side and the length of the thermal protection film on the opposite side of the base are equal to each other in the same arc tube. A high-pressure sodium discharge lamp (hereinafter referred to as a conventional discharge lamp) was manufactured, and the lamp voltage was measured when the lamp was lit at a constant power supply voltage of 200V (60Hz) using a 300W mercury lamp ballast in the naked state and in a floodlight. , 1st
The results are as shown in the table.
【表】【table】
【表】
実験例 ２
発光管構造
寸法：内径9.0mm、全長108.0mm
材質：多結晶アルミナ
電極間距離：78.0mm
電極長：15.0mm（口金側、反口金側ともに同じ）
封入物：ナトリウム 6.2mg
水銀 13.8mg
キセノガス 250Torr
上記発光管を２本作製し、実施例１と同一条件
にて高圧ナトリウム放電灯を作製し裸の状態およ
び投光器内で、高圧ナトリウム放電灯450W用安
定器で点灯したときのランプ電圧を測定したとこ
ろ、第２表に示すとおりの結果となつた。[Table] Experimental example 2 Arc tube structural dimensions: Inner diameter 9.0 mm, total length 108.0 mm Material: Polycrystalline alumina Distance between electrodes: 78.0 mm Electrode length: 15.0 mm (same on the cap side and opposite cap side) Filled material: Sodium 6.2 mg Mercury 13.8mg When the lamp voltage was measured, the results were as shown in Table 2.
【表】
なお、第１表および第２表に示す実験におい
て、本発明放電灯の反口金側の熱保護膜６の長さ
を、従来放電灯の熱保護膜の長さと同一にしたの
は、発光管の最冷点温度を従来放電灯と同等とす
ることにより、本発明放電灯が従来放電灯と同じ
定格値を満足するようにしたためである。
以上の結果から明らかなように、本発明の装置
における高圧ナトリウム放電灯は、従来の装置に
おける高圧ナトリウム放電灯に比して、ランプ電
圧の上昇が小さく、これらの例によれば約1/3に
低下している。そして、本発明の装置では、高圧
ナトリウム放電灯が立消えすることはなかつた。
発明の効果
以上説明したように、本発明は投光器と組み合
わせて点灯しても、ランプ電圧の上昇が小さく、
立消えの生じない高圧ナトリウム放電灯を備えた
高圧ナトリウム放電装置を提供することができる
ものである。[Table] In the experiments shown in Tables 1 and 2, the length of the heat protection film 6 on the side opposite to the base of the discharge lamp of the present invention was made the same as the length of the heat protection film of the conventional discharge lamp. This is because the discharge lamp of the present invention satisfies the same rated value as the conventional discharge lamp by making the coldest point temperature of the arc tube the same as that of the conventional discharge lamp. As is clear from the above results, the increase in lamp voltage of the high-pressure sodium discharge lamp in the device of the present invention is smaller than that in the high-pressure sodium discharge lamp in the conventional device, and according to these examples, the rise in lamp voltage is about 1/3. has declined to In addition, in the device of the present invention, the high pressure sodium discharge lamp did not go out. Effects of the Invention As explained above, even when the present invention is lit in combination with a floodlight, the rise in lamp voltage is small.
It is possible to provide a high-pressure sodium discharge device equipped with a high-pressure sodium discharge lamp that does not go out.
第１図は本発明の一実施例である高圧ナトリウ
ム放電装置の断面図、第２図は本発明の装置に用
いられる高圧ナトリウム放電灯の一例を示す正面
図、第３図は本発明の装置に用いられる高圧ナト
リウム放電灯の両端に熱保護膜を備えた発光管の
一例を示す図、第４図は高圧ナトリウム放電灯の
点灯回路を示す図である。
１……高圧ナトリウム放電灯、２……投光器、
３……発光管、４……ゲツタ、５……熱保護膜、
６……熱保護膜、７……口金、８……外管。
FIG. 1 is a sectional view of a high-pressure sodium discharge device that is an embodiment of the present invention, FIG. 2 is a front view showing an example of a high-pressure sodium discharge lamp used in the device of the present invention, and FIG. 3 is a device of the present invention. FIG. 4 is a diagram showing an example of a high-pressure sodium discharge lamp used in a high-pressure sodium discharge lamp having a heat protection film on both ends. FIG. 4 is a diagram showing a lighting circuit for a high-pressure sodium discharge lamp. 1... High pressure sodium discharge lamp, 2... Floodlight,
3... Arc tube, 4... Getsuta, 5... Heat protection film,
6... Heat protection film, 7... Base, 8... Outer tube.
Claims (1)
動用希ガスが封入された発光管と、内部に前記発
光管が組み込まれた片口金付の外管とを有する高
圧ナトリウム放電灯を投光器と組み合わせた高圧
ナトリウム放電装置において、前記発光管の両端
に熱保護膜を備え、かつ、口金側の熱保護膜が反
口金側の熱保護膜より長くなつていることを特徴
とする高圧ナトリウム放電装置。1. A high-pressure sodium discharge lamp in which a floodlight is combined with a high-pressure sodium discharge lamp, which has an arc tube filled with sodium, a metal for buffer gas, and a rare gas for starting, and an outer bulb with a single cap in which the arc tube is incorporated. A high-pressure sodium discharge device, characterized in that the arc tube is provided with thermal protective films at both ends, and the thermal protective film on the cap side is longer than the thermal protective film on the side opposite to the cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12251183A JPS6014744A (en) | 1983-07-05 | 1983-07-05 | High pressure sodium discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12251183A JPS6014744A (en) | 1983-07-05 | 1983-07-05 | High pressure sodium discharge device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6014744A JPS6014744A (en) | 1985-01-25 |
| JPH0524617B2 true JPH0524617B2 (en) | 1993-04-08 |
Family
ID=14837657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12251183A Granted JPS6014744A (en) | 1983-07-05 | 1983-07-05 | High pressure sodium discharge device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014744A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4895090A (en) * | 1972-03-17 | 1973-12-06 | ||
| JPS5343751A (en) * | 1976-10-01 | 1978-04-20 | Toray Industries | Method of cleaning polymer deposits |
-
1983
- 1983-07-05 JP JP12251183A patent/JPS6014744A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4895090A (en) * | 1972-03-17 | 1973-12-06 | ||
| JPS5343751A (en) * | 1976-10-01 | 1978-04-20 | Toray Industries | Method of cleaning polymer deposits |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6014744A (en) | 1985-01-25 |
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