JPH034441A - High-pressure sodium lamp - Google Patents
High-pressure sodium lampInfo
- Publication number
- JPH034441A JPH034441A JP13592889A JP13592889A JPH034441A JP H034441 A JPH034441 A JP H034441A JP 13592889 A JP13592889 A JP 13592889A JP 13592889 A JP13592889 A JP 13592889A JP H034441 A JPH034441 A JP H034441A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- lamp
- electrode
- double
- energy
- 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
- 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 description 15
- 229910052708 sodium Inorganic materials 0.000 title claims description 15
- 239000011734 sodium Substances 0.000 title claims description 15
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 9
- 239000007858 starting material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 abstract description 3
- 239000010937 tungsten Substances 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 2
- 239000003381 stabilizer Substances 0.000 abstract 2
- 230000007704 transition Effects 0.000 description 3
- 229910000497 Amalgam Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- MJGFBOZCAJSGQW-UHFFFAOYSA-N mercury sodium Chemical compound [Na].[Hg] MJGFBOZCAJSGQW-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001023 sodium amalgam Inorganic materials 0.000 description 1
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
- Discharge Lamp (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、高圧ナトリウムランプの改良に関し、特に安
定器として定電力型水銀ランプ用安定器を用いて点灯す
る高圧ナトリウムランプの発光管電極の改良に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to the improvement of high-pressure sodium lamps, and in particular to the improvement of arc tube electrodes of high-pressure sodium lamps operated using constant-power mercury lamp ballasts as ballasts. Regarding improvements.
［従来の技術］
水銀ランプ用安定器を用いて点灯しうるように構成した
高圧ナトリウムランプが普及しつつあるが、一般にこの
安定器はチョーク型安定器に限定されており、定電力型
安定器は不適当とされている。[Prior Art] High-pressure sodium lamps configured to be lit using mercury lamp ballasts are becoming popular, but these ballasts are generally limited to choke-type ballasts, and constant-power ballasts are is considered inappropriate.
この理由として、高圧ナトリウムランプは一般に飽和型
ランプであり１点灯中に蒸発気化する以上にナトリウム
及び水銀が封入されているので、■ナトリウムが消失し
てナトリウムアマルガム中における比率が減少する、■
電極物質がスパッタし発光管内壁が黒化して電極部が保
温されることとなり最冷部温度が上昇する、■電極に塗
布された電子放射物質が枯渇し電極動作温度が上昇しそ
れに伴って最冷部温度が上昇する等により、ランプ働程
中、ランプ電圧が上昇するために定電流特性である定電
力型安定器ではランプ入力が増大し、極端な場合はラン
プが破損することとなるからである。The reason for this is that high-pressure sodium lamps are generally saturated lamps and contain more sodium and mercury than can be evaporated during one lighting operation, so that (1) sodium disappears and its proportion in the sodium amalgam decreases; (2)
The electrode material sputters, the inner wall of the arc tube becomes black, and the electrode part is kept warm, causing the temperature of the coldest part to rise. ■The electron emitting material coated on the electrode is depleted, and the electrode operating temperature rises, resulting in a rise in the temperature of the coldest part. As the cold part temperature rises, the lamp voltage increases during lamp operation, so in constant power type ballasts, which have constant current characteristics, the lamp input increases, and in extreme cases, the lamp may be damaged. It is.
又、ランプに振動、衝撃が加わった場合、余剰アマルガ
ムが突沸し急激にランプ電圧が上昇するだめに前記と同
様の危険性がある。Furthermore, when vibrations or shocks are applied to the lamp, there is a risk similar to that described above in that excess amalgam will bump and the lamp voltage will rise rapidly.
そこで、水銀ランプのように封入したアマルガムが全て
蒸発するような不飽和型ランプとすればこのようなラン
プ電圧上昇による危険性は解消するし、事実、ランプと
して不飽和型高圧ナトリウムランプが開発されている。Therefore, if you use an unsaturated lamp, such as a mercury lamp, in which all the amalgam sealed in the lamp evaporates, the danger caused by the rise in lamp voltage will be eliminated, and in fact, unsaturated high-pressure sodium lamps were developed as lamps. ing.
［発明が解決しようとする課題］
しかしながら、前記不飽和型ランプといえども定電力型
安定器では点灯が困難な理由がある。[Problems to be Solved by the Invention] However, there are reasons why even the unsaturated lamp described above is difficult to light with a constant power ballast.
すなわら、ランプの始動時発光管が絶縁破壊を起こした
瞬間、ランプ電流波形は第２図に示す安定器の二次側短
絡電流波形に近い形状を示す。That is, at the moment when the arc tube undergoes dielectric breakdown when starting the lamp, the lamp current waveform exhibits a shape close to the secondary side short-circuit current waveform of the ballast shown in FIG.
ここで、チョーク型安定器で点灯した場合は。Now, if the light is lit with a choke type ballast.
正弦波に近いエネルギーが電極を加熱するため容易に熱
電子放出が行われ安定放電にスムーズに移行する。Since energy close to a sine wave heats the electrode, thermionic emission occurs easily and a smooth transition to stable discharge occurs.
しかしながら２定電力型安定器で点灯した場合。However, when lit with a 2 constant power type ballast.
第２図（ｂ）に示すように電流体止期間が長い関係上、
電極を加熱するエネルギーが不足するので安定放電に移
行しないという問題があった６［課題を解決するための
手段］
本発明は前記に鑑みてなされたもので、高圧ナトリウム
ランプの発光管の両端に封着した電極、特に電極コイル
部の構造を改良することにより、水銀ランプ用定電力型
安定器で点灯可能な高圧ナトリウムランプを提供するこ
とを目的とする。As shown in Figure 2(b), due to the long current stop period,
There was a problem that the transition to stable discharge did not occur due to insufficient energy to heat the electrodes.6 [Means for Solving the Problems] The present invention was made in view of the above problems, and the present invention has been made in view of the above. The object of the present invention is to provide a high-pressure sodium lamp that can be operated with a constant power ballast for a mercury lamp by improving the structure of the sealed electrode, particularly the electrode coil portion.
［実施例及び作用］
以下、本発明に係る実施例を従来例と比較しながら、第
１図に基づき説明する。[Embodiments and Effects] Hereinafter, embodiments according to the present invention will be described based on FIG. 1 while comparing them with conventional examples.
本発明に係る高圧ナトリウムランプは、透光性アルミナ
管の両端に電極支持管を封着し、該支持管の管内端部に
はタングステン電極芯枠が固定され、その先端にはタン
グステン線をコイル状に形成した電極コイル部が設けで
ある。In the high-pressure sodium lamp according to the present invention, electrode support tubes are sealed at both ends of a translucent alumina tube, a tungsten electrode core frame is fixed to the inner end of the support tube, and a tungsten wire is coiled at the tip of the support tube. An electrode coil portion formed in a shape is provided.
そして、管内部には希ガスと共に水銀及びナトリウムが
封入されいる、このようにして構成された発光管は外球
内サポート及び始動器と共に一端に口金を有する外球内
に封着支持されてい机
こごで、従来の電極コイル部構造を第３図番；示ず。第
３図（ａ）は電極芯枠の先端部に巻回された外コイル及
び内コイル共にタングステン線の単コイルよりなる密着
形の電極コイル部、第３図（ｂ）は同じくとばし巻き形
の電極コイル部である。The arc tube constructed in this way, in which mercury and sodium are sealed together with a rare gas inside the tube, is sealed and supported in an outer bulb with a cap at one end, together with an inner support and a starter. The conventional electrode coil structure is shown in Figure 3 (not shown). Fig. 3(a) shows a close-contact type electrode coil portion consisting of a single coil of tungsten wire in which both the outer and inner coils are wound around the tip of the electrode core frame, and Fig. 3(b) shows a similarly skipped type electrode coil portion. This is the electrode coil section.
ここで、ランプ始動時発光管に絶縁破壊が生じたとき、
電極芯棒先端からアークが発生するのではなく、外コイ
ル先端又は外コイル端部からＩＩ祭される。そして、前
記のように内コイルが外コイルと同じ径の単線であり、
かつ外コイル及び電極芯枠ど強固に接触した構造である
と、加熱された外コイルの熱エネルギーが内コイルを介
して伝導により芯枠から逃げるため定電力型安定器のよ
うにエネルギーが不足する波形では熱電子放出が活発に
なる程には電極が加熱されないものと考えられる。Here, when dielectric breakdown occurs in the arc tube when starting the lamp,
The arc is not generated from the tip of the electrode core rod, but from the tip or end of the outer coil. And, as mentioned above, the inner coil is a single wire with the same diameter as the outer coil,
In addition, if the outer coil and electrode core frame are in strong contact, the thermal energy of the heated outer coil escapes from the core frame through conduction through the inner coil, resulting in a lack of energy as in a constant power ballast. It is thought that the waveform does not heat the electrode to the extent that thermionic emission becomes active.
そこで、第１８図に本発明に係る電極コイル部構造を示
す。第１゜図（ａ）は電極芯棒の先端部に巻回されたタ
ングステン線の二重コイルよりなる内フィル及びタング
ステン線の曝コイルよりなる外コイルを示し、密着形の
電極フィル部を構成している。又、第１図（ｂ）は同じ
くとばし巻き形の電極コイル部である
このような電極構造であれば５発光管の絶縁破壊が生じ
た際、加熱された外コイルの熱エネルギーは熱絶縁の優
れた二重構造からなる内コイルによって８捧△、逃げ雛
く熱電子放出が容易で活発どなりスムーズにアークに移
行することができ、高圧ナトリウムランプを定電力型安
定器を用いても容易に点灯することができる。Therefore, FIG. 18 shows the structure of the electrode coil portion according to the present invention. Figure 1(a) shows an inner fill made of a double coil of tungsten wire wound around the tip of the electrode core rod and an outer coil made of an exposed coil of tungsten wire, forming a close-contact electrode fill part. are doing. In addition, Fig. 1(b) shows the electrode coil part of the same spiral-wound shape.If the electrode structure is like this, when dielectric breakdown occurs in the 5 arc tube, the thermal energy of the heated outer coil will be absorbed by the thermal insulation. The inner coil, which has an excellent double structure, makes it easy to emit thermionic electrons and smoothly transition to an active arc, making it easy to use a high-pressure sodium lamp even when using a constant power ballast. Can be lit.
［発明の効果コ
以上の説明から明らかなように本発明に係る高圧ナトリ
ウムランプば、その発光管電極部の構造を比較的簡単に
改良することにより、始動特性を改善することができ、
−収約に普及している水銀ランプ用定電力型安定器を用
いて点灯できるので、その産業上の利用価値は大なるも
のがある。[Effects of the Invention] As is clear from the above description, the starting characteristics of the high-pressure sodium lamp according to the present invention can be improved by relatively easily improving the structure of the arc tube electrode section.
- Since it can be lit using a constant power ballast for mercury lamps, which is widely used in the market, its industrial utility value is great.
第１図は本発明に係る電極コイル部の一例を示す側面図
、第２図は安定器二次側短絡電流波形を示す図、第３図
は従来の電極コイル部示す側面図である。FIG. 1 is a side view showing an example of an electrode coil section according to the present invention, FIG. 2 is a diagram showing a short-circuit current waveform on the secondary side of a ballast, and FIG. 3 is a side view showing a conventional electrode coil section.
Claims (1)
ルを単コイル状としかつ内コイルを二重コイル状となし
、内部にナトリウム、緩衝ガス用金属及び始動用希ガス
を封入し、ランプ安定点灯状態において封入金属の全て
が蒸発気化する発光管を有し、該発光管を始動器と共に
外球内に封着支持してなるランプを水銀ランプ用定電力
型安定器で点灯することを特徴とする高圧ナトリウムラ
ンプ。1 Electrodes are sealed at both ends of the arc tube, and the electrode structure is such that the outer coil is a single coil and the inner coil is a double coil, and sodium, buffer gas metal, and starting rare gas are sealed inside. , a lamp having an arc tube in which all of the enclosed metal evaporates when the lamp is stably lit, and the arc tube is sealed and supported in an outer bulb together with a starter, is lit with a constant power type ballast for a mercury lamp. A high-pressure sodium lamp characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13592889A JPH034441A (en) | 1989-05-31 | 1989-05-31 | High-pressure sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13592889A JPH034441A (en) | 1989-05-31 | 1989-05-31 | High-pressure sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH034441A true JPH034441A (en) | 1991-01-10 |
Family
ID=15163128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13592889A Pending JPH034441A (en) | 1989-05-31 | 1989-05-31 | High-pressure sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH034441A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372471A (en) * | 1991-12-13 | 1994-12-13 | United Microelectronics Corporation | Single semiconductor wafer transfer method and manufacturing system |
| US5685684A (en) * | 1990-11-26 | 1997-11-11 | Hitachi, Ltd. | Vacuum processing system |
| US6577064B2 (en) | 2000-05-12 | 2003-06-10 | Koninklijke Philips Electronics N.V. | Electric high-pressure discharge lamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345072A (en) * | 1976-10-04 | 1978-04-22 | Matsushita Electronics Corp | High pressure metal vapor discharge lamp |
| JPS6145559A (en) * | 1985-07-12 | 1986-03-05 | Hitachi Ltd | High pressure vapor discharge lamp |
| JPS6271160A (en) * | 1985-09-25 | 1987-04-01 | Iwasaki Electric Co Ltd | High-pressure sodium lamp of unsaturated-vapor-pressure-type characteristic |
-
1989
- 1989-05-31 JP JP13592889A patent/JPH034441A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345072A (en) * | 1976-10-04 | 1978-04-22 | Matsushita Electronics Corp | High pressure metal vapor discharge lamp |
| JPS6145559A (en) * | 1985-07-12 | 1986-03-05 | Hitachi Ltd | High pressure vapor discharge lamp |
| JPS6271160A (en) * | 1985-09-25 | 1987-04-01 | Iwasaki Electric Co Ltd | High-pressure sodium lamp of unsaturated-vapor-pressure-type characteristic |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685684A (en) * | 1990-11-26 | 1997-11-11 | Hitachi, Ltd. | Vacuum processing system |
| US5372471A (en) * | 1991-12-13 | 1994-12-13 | United Microelectronics Corporation | Single semiconductor wafer transfer method and manufacturing system |
| US6577064B2 (en) | 2000-05-12 | 2003-06-10 | Koninklijke Philips Electronics N.V. | Electric high-pressure discharge lamp |
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