JPH0587959B2 - - Google Patents
Info
- Publication number
- JPH0587959B2 JPH0587959B2 JP25486689A JP25486689A JPH0587959B2 JP H0587959 B2 JPH0587959 B2 JP H0587959B2 JP 25486689 A JP25486689 A JP 25486689A JP 25486689 A JP25486689 A JP 25486689A JP H0587959 B2 JPH0587959 B2 JP H0587959B2
- Authority
- JP
- Japan
- Prior art keywords
- fec
- thermally responsive
- discharge lamp
- electrode
- starting
- 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
- 239000003990 capacitor Substances 0.000 claims description 6
- 229910001507 metal halide Inorganic materials 0.000 claims description 6
- 150000005309 metal halides Chemical class 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052753 mercury Inorganic materials 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 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 description 2
- 229910052706 scandium Inorganic materials 0.000 description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical group [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、非線形コンデンサからなる始動器を
備えた。メタルハライドランプのごとき高圧金属
蒸気放電灯の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention includes a starter made of a nonlinear capacitor. Concerning improvements in high pressure metal vapor discharge lamps such as metal halide lamps.
（従来の技術）
第５図は、ヒステリシス状の電圧−電荷特性を
有する非線形コンデンサ（以下FECと称する）
からなる始動器を備えた高圧金属蒸気放電灯の一
例である。同図において、１は一対の主電極２
ａ，２ｂと該主電極の一方に近接して設けられた
始動補助電極３とを有し内部に水銀及び希ガスと
共に添化ナトリウム、添化スカンジウム等の金属
ハロゲン化物を封入してなる発光管である。この
発光管１には、常温閉接点を有する熱応動開閉器
４を介してFEC５が並列に接続してある。さら
に、発光管１の始動補助電極３は、これに近接さ
ぜる主電極２ａに対して抵抗体６及び前記熱応動
開閉器４を介して電気的に接続してある。そし
て、これらの発光管１、熱応動開閉器４、FEC
５及び抵抗体６はランプ外球７の内部に収納して
ある。８はチヨークコイルのごとき安定器、９は
交流電源を示す。(Prior art) Figure 5 shows a nonlinear capacitor (hereinafter referred to as FEC) having hysteresis voltage-charge characteristics.
This is an example of a high-pressure metal vapor discharge lamp equipped with a starter consisting of: In the figure, 1 is a pair of main electrodes 2
a, 2b and an auxiliary starting electrode 3 provided close to one of the main electrodes, and a light emitting tube in which a metal halide such as added sodium or scandium is sealed together with mercury and a rare gas. It is. An FEC 5 is connected in parallel to the arc tube 1 via a thermally responsive switch 4 having normal-temperature closed contacts. Further, the starting auxiliary electrode 3 of the arc tube 1 is electrically connected to the main electrode 2a adjacent thereto via a resistor 6 and the thermally responsive switch 4. Then, these arc tube 1, thermal switch 4, FEC
5 and the resistor 6 are housed inside the lamp outer bulb 7. 8 is a ballast such as a chiyoke coil, and 9 is an AC power source.
前記のような放電灯に交流電源電圧を印加する
と、FEC５が発振して安定器８の巻線中に高電
圧パルスが生じ、これが電源電圧と共に発光管１
の電極に加わるため放電灯が始動点灯する。放電
灯が始動した後は、発光管１からの放射熱により
熱応動開閉器４が開き、FEC５を電源から切り
離すと同時に、始動補助電極３を主電極２ａから
電気的に切り離す。 When an AC power supply voltage is applied to the discharge lamp as described above, the FEC 5 oscillates and a high voltage pulse is generated in the winding of the ballast 8, which together with the power supply voltage
The discharge lamp starts and lights up because it is applied to the electrode. After the discharge lamp starts, the thermally responsive switch 4 opens due to the radiant heat from the arc tube 1, disconnecting the FEC 5 from the power source and electrically disconnecting the starting auxiliary electrode 3 from the main electrode 2a.
ところが、前記のような放電灯においては、放
電灯が始動して熱応動開閉器４が開くと、電源９
−主電極２ａ−アーク放電−始動補助電極３−抵
抗体６−FEC５−電源９からなる回路を通して
FEC５に電圧が印加される。一方、放電灯の外
球内に組み込まれたFEC５は放電灯の点灯中に
極めて高い温度に曝された状態になる。例えば
FECを外球の口金取付部付近に設置した場合、
約300℃にもなり、FECを構成する強誘電体の変
態点（キユーリー点）よりもはるかに高い温度に
なる。FECはこのような高温中に置かれると、
強誘電体から常誘導電体にと変化し、比誘電率が
下がり容量も低下する。これに伴いインピーダン
スが高くなるため、FEC５の端子間には第７図
に示すような波形の高い電圧が加わる結果とな
る。このようにして、高温中においてFEC５に
高電圧が印加され続けると、FECを構成する強
誘電体結晶の表面に設けた銀膜電極の銀が結晶粒
界に沿つて強誘導電体中に拡散し（マイグレーシ
ヨンと称する）、その結果、FECのヒステリシス
特性が損われ、高電圧パルス発生機能が低下する
こととなる。また、強誘電体中に銀が拡散するた
めFECの絶縁抵抗も低下し、絶縁破壊が生じや
すくなる。 However, in the above-mentioned discharge lamp, when the discharge lamp starts and the thermally responsive switch 4 opens, the power supply 9
- Through a circuit consisting of - main electrode 2a - arc discharge - starting auxiliary electrode 3 - resistor 6 - FEC 5 - power supply 9
A voltage is applied to FEC5. On the other hand, the FEC 5 built into the outer bulb of the discharge lamp is exposed to extremely high temperatures while the discharge lamp is lit. for example
When FEC is installed near the base attachment part of the outer sphere,
The temperature reaches approximately 300°C, which is much higher than the transformation point (Curie point) of the ferroelectric material that makes up FEC. When FEC is placed in such high temperatures,
The material changes from a ferroelectric material to a paraelectric material, and the dielectric constant and capacitance decrease. Since the impedance increases accordingly, a voltage with a high waveform as shown in FIG. 7 is applied between the terminals of the FEC 5. In this way, when a high voltage is continuously applied to the FEC 5 at high temperatures, the silver in the silver film electrode provided on the surface of the ferroelectric crystal constituting the FEC diffuses into the ferroelectric material along the grain boundaries. (referred to as migration), and as a result, the hysteresis characteristics of the FEC are impaired and the high voltage pulse generation function is degraded. Furthermore, since silver diffuses into the ferroelectric material, the insulation resistance of the FEC also decreases, making dielectric breakdown more likely to occur.
かかる問題を解決するために、第６図に示すよ
うに、発光管１に対してFEC５と抵抗体６を、
それぞれ常温閉接点を有する別の熱応動開閉器４
ａ，４ｂを介して並列的に接続して、放電灯の点
灯後に始動補助電極３の回路を通してFEC５に
電圧が加わらないようにすることも提案されてい
る。 In order to solve this problem, as shown in FIG.
Another thermally responsive switch 4 each having a cold-closed contact
It has also been proposed to connect them in parallel via a and 4b so that no voltage is applied to the FEC 5 through the circuit of the starting auxiliary electrode 3 after the discharge lamp is lit.
しかし、かかる構造においては、点灯状態にあ
つた放電灯を一旦消灯して短時間のうちに再始動
させる場合、始動補助電極３側の熱応動開閉器４
ｂが放電灯の消灯後に閉状態に戻らぬうちに
FEC５側の熱応動開閉器４ａが先に閉状態に戻
ると、高電圧パルスは発生するものの放電灯は始
動しないという状態が生じ、放電灯点灯回路を傷
めるばかりでなく危険である。そこで、かかる構
造では、始動補助電極３側の熱応動開閉器４ｂの
開閉接点が、FEC５側の熱応動開閉器４ａの開
閉接点よりも早く戻るように接点圧の調整をして
おかなければならないという不便があつた。 However, in such a structure, when a discharge lamp that has been lit is turned off and then restarted within a short period of time, the thermally responsive switch 4 on the side of the starting auxiliary electrode 3
Before b returns to the closed state after the discharge lamp goes out,
If the thermally responsive switch 4a on the FEC 5 side returns to the closed state first, a high voltage pulse is generated but the discharge lamp does not start, which not only damages the discharge lamp lighting circuit but is also dangerous. Therefore, in such a structure, the contact pressure must be adjusted so that the switching contact of the thermally responsive switch 4b on the side of the starting auxiliary electrode 3 returns earlier than the switching contact of the thermally responsive switch 4a on the FEC 5 side. This was an inconvenience.
（発明が解決しようとする課題）
したがつて、本発明は、始動用補助電極を有す
る発光管とFECからなる始動器とを備えた高圧
金属蒸気放電灯であつて、前記始動補助電極の回
路を通して、FECに電圧が印加されることによ
るFECの高電圧パルス発生機能の低下や絶縁抵
抗の低下がなく、しかも始動補助電極やFECの
回路を開閉する熱応動開閉器の開閉接点の調整等
を必要としない放電灯を提供することを目的とす
る。(Problems to be Solved by the Invention) Therefore, the present invention provides a high-pressure metal vapor discharge lamp comprising a luminous tube having an auxiliary starting electrode and a starter consisting of an FEC, which includes a circuit for the auxiliary starting electrode. There is no reduction in the FEC's high-voltage pulse generation function or insulation resistance due to voltage being applied to the FEC, and there is no need to adjust the opening/closing contacts of the starting auxiliary electrode or the thermally responsive switch that opens and closes the FEC circuit. The purpose is to provide a discharge lamp that is not required.
（課題を解決するための手段）
本発明は、上記目的を達成するために、FEC
からなる始動器を備えた高圧金属蒸気放電灯にお
いて、一対の主電極と該主要極の一方に近接して
設けられた始動補助電極とを有し内部に水銀及び
希ガスと共に金属ハロゲン化物を封入してなる発
光管と並列に、常温閉接点を有する２個の熱応動
開閉器とFECの直列回路を接続するとともに、
前記始動補助電極をこれに近接せざる主電極に対
して、抵抗体と前記２個の熱応動開閉器のうちの
１個の熱応動開閉器とを介して電気的に接続した
構成とするものである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides FEC
A high-pressure metal vapor discharge lamp equipped with a starter consisting of a pair of main electrodes and an auxiliary starting electrode provided close to one of the main electrodes, with a metal halide sealed therein along with mercury and a rare gas. In parallel with the arc tube formed by the
The starting auxiliary electrode is electrically connected to a main electrode that is not adjacent thereto via a resistor and one of the two thermally responsive switches. It is.
（作用）
本発明では、前記のようにFECに対して２個
の熱応動開閉器が直列的に接続してあるので、放
電灯の始動後に前記熱応動開閉器のうちの何れが
開いても、FECの回路は電源から切り離される
ので高電圧パルスの発生は停止する。また、熱応
動開閉器のうちの１個は始動補助電極をこれに近
接せざる主電極に対して電気的に接続する回路を
開放し、他の１個は始動補助電極の回路を介して
FECに電圧がかかる回路を開放するようになつ
ているので、FECの高電圧パルス発生機能が低
下したり絶縁抵抗が低下するのを防ぐことができ
る。さらに、放電灯を再始動させる場合は、２個
の熱応動開閉器のうちの何れが先に閉じても他の
１個が閉じない限りFECは電圧はかからないの
で高電圧パルスが発生することはない。(Function) In the present invention, since two thermally responsive switches are connected in series to the FEC as described above, any one of the thermally responsive switches opens after the discharge lamp is started. , the FEC circuit is disconnected from the power supply, so the generation of high voltage pulses stops. Also, one of the thermally responsive switches opens the circuit that electrically connects the starting auxiliary electrode to the main electrode that is not adjacent to it, and the other one opens the circuit that electrically connects the starting auxiliary electrode to the main electrode that is not adjacent to it, and the other
Since the circuit that applies voltage to the FEC is opened, it is possible to prevent the FEC's high voltage pulse generation function from deteriorating and insulation resistance from decreasing. Furthermore, when restarting a discharge lamp, no matter which of the two thermally responsive switches closes first, no voltage will be applied to the FEC unless the other one closes, so high voltage pulses will not occur. do not have.
（実施例１）
第１図に本発明の基本的な実施例を示す。同図
において、１は一対の主電極２ａ，２ｂと該主電
極の一方に近接して設けられた始動補助電極３と
を有し内部に水銀及び希ガスと共に添化ナトリウ
ム、添化スカンジウム等の金属ハロゲン化物を封
入してなる発光管である。この発光管１には常温
閉接点を有する２個の熱応動開閉器４ａ，４ｂを
介してFEC５が並列に接続してある。FECはチ
タン酸バリウム（BaTiO3）を主成分とする直径
15.5mm、厚み1.0mmの円板状の焼結体の両面に直
径14.5mmの銀膜電極を形成しこれに電極端子を接
続したうえ、外周を無機ガラスでオーバーコート
したものである。このFEC５のキユーリー点は
90℃であり、ランプ外球内に設置できるように連
続的には400℃、一時的には550℃の温度に耐えら
れる。さらに、発光管１の始動補助電極３は
30KΩの抵抗体６と前記２個の熱応動開閉器４
ａ，４ｂのうちの１個４ｂを介して主電極２ａに
電気的に接続してある。そして、これらの各構成
素子はランプ外球７の内部に収納してある。８は
安定器、９は交流電源である。(Example 1) FIG. 1 shows a basic example of the present invention. In the same figure, 1 has a pair of main electrodes 2a, 2b and an auxiliary starting electrode 3 provided close to one of the main electrodes, and contains added sodium, scandium, etc. along with mercury and rare gas. It is an arc tube made by enclosing a metal halide. An FEC 5 is connected in parallel to the arc tube 1 via two thermally responsive switches 4a and 4b having normal temperature closed contacts. FEC is a diameter whose main component is barium titanate (BaTiO 3 ).
Silver film electrodes with a diameter of 14.5 mm are formed on both sides of a disk-shaped sintered body of 15.5 mm and thickness of 1.0 mm, electrode terminals are connected to these, and the outer periphery is overcoated with inorganic glass. The Curie point of this FEC5 is
It can withstand temperatures of 400°C continuously and 550°C temporarily so that it can be installed inside the lamp's outer bulb. Furthermore, the starting auxiliary electrode 3 of the arc tube 1 is
30KΩ resistor 6 and the two thermally responsive switches 4
It is electrically connected to the main electrode 2a via one of the electrodes 4b. Each of these components is housed inside the lamp outer bulb 7. 8 is a ballast, and 9 is an AC power source.
かかる放電灯に交流電源電圧を印加すると、
FEC５に電源電圧がかかり、同FEC５が発振す
るため安定器８の巻線中に第８図に示すような高
電圧パルスが生じ、これが電源電圧と共に発光管
１の主電極２ｂとこれに近接した始動補助電極３
の間に加わるため、先ずこれらの電極間で放電が
生じる。続いてこの放電は両主電極２ａ，２ｂ間
の放電へと移行し放電灯が始動する。放電灯が始
動すると、発光管１の放射熱により、先ず熱応動
開閉器４ａが開いてFEC５を電源から切り離す
ため高電圧パルスの発生は停止する。続いて、他
の熱応動開閉器４ｂも開くため、始動補助電極３
の回路を通してFEC５に電圧が印加されること
はなく、FECの高電圧パルス発生機能の低下や
絶縁抵抗の低下を防ぐことができる。 When an AC power supply voltage is applied to such a discharge lamp,
When the power supply voltage is applied to the FEC 5, the FEC 5 oscillates, causing a high voltage pulse as shown in Fig. 8 in the winding of the ballast 8. Starting auxiliary electrode 3
First, a discharge occurs between these electrodes. Subsequently, this discharge shifts to a discharge between the two main electrodes 2a and 2b, and the discharge lamp starts. When the discharge lamp starts, the thermally responsive switch 4a first opens due to the radiant heat of the arc tube 1, and the FEC 5 is disconnected from the power source, so that the generation of high voltage pulses is stopped. Subsequently, in order to open the other thermally responsive switch 4b, the starting auxiliary electrode 3
No voltage is applied to the FEC 5 through the circuit, and it is possible to prevent a decrease in the high voltage pulse generation function of the FEC and a decrease in insulation resistance.
また、放電灯の再始動時事には、先ず熱応動開
閉器４ｂが閉じ、続いて他の熱応動開閉器４ａが
閉じることになるが、両熱応動開閉器４ａ，４ｂ
が閉じた後でなければ高電圧パルスは発生しない
から、無駄な高電圧パルスの発生を防止すること
ができる。 In addition, when restarting a discharge lamp, first the thermally responsive switch 4b closes, and then the other thermally responsive switch 4a closes, but both the thermally responsive switches 4a, 4b
Since a high voltage pulse is not generated until after the gate is closed, unnecessary high voltage pulses can be prevented from being generated.
なお、本実施例では熱応動開閉器５が先に開く
ように設計した場合について説明したが、本発明
では２個の熱応動開閉器の開閉順序を特定する必
要はないので、開閉接点圧を比較調整することも
必要としない。 In this embodiment, a case has been described in which the thermally responsive switch 5 is designed to open first, but in the present invention, there is no need to specify the opening/closing order of the two thermally responsive switches, so the switching contact pressure is There is no need to compare or adjust.
また、熱応動開閉器４ｂの接続個所はＡ点（×
印）でもよい。 In addition, the connection point of the thermally responsive switch 4b is point A (×
) is also acceptable.
（実施例２）
第２図に、本発明の第２実施例を示す。なお、
前記第１実施例と対応する部分には同一符号を付
して説明を省略する。この実施例は中・高ワツト
の放電灯に好適なもので、FEC５と直列に半導
体スイツチ１０が接続してある。400Wのメタル
ハライドランプでは、半導体スイツチ１０のブレ
ークオーバー電圧Vbpは100〜220Vが適当であり、
高電圧パルスのピーク値は1000〜2000Vになる。
なお、一般に半導体スイツチ１０は口金の内部に
保持され、点灯時の高温に十分耐え得る。(Example 2) FIG. 2 shows a second example of the present invention. In addition,
The same reference numerals are given to the parts corresponding to those in the first embodiment, and the explanation thereof will be omitted. This embodiment is suitable for medium to high wattage discharge lamps, and a semiconductor switch 10 is connected in series with the FEC 5. For a 400W metal halide lamp, the appropriate breakover voltage V bp of the semiconductor switch 10 is 100 to 220V.
The peak value of the high voltage pulse will be 1000-2000V.
Note that the semiconductor switch 10 is generally held inside the base and can sufficiently withstand high temperatures during lighting.
（実施例３）
第３図に本発明の第３実施例を示す。なお、前
記第１実施例、第２実施例と対応する部分には同
一符号を付して説明を省略する。(Embodiment 3) FIG. 3 shows a third embodiment of the present invention. Note that parts corresponding to those in the first and second embodiments are designated by the same reference numerals and their explanations will be omitted.
この実施例は、前記第２実施例の半導体スイツ
チ１０と並列に10〜200KΩの抵抗１１を与えた
もので、これにより、半導体スイツチ１０のON
の位相を安定化することができる。 In this embodiment, a resistor 11 of 10 to 200KΩ is provided in parallel with the semiconductor switch 10 of the second embodiment, which allows the semiconductor switch 10 to be turned on.
The phase of can be stabilized.
（実施例４）
第４図に本発明の第４実施例を示す。なお、前
記第１〜第３実施例と対応する部分には同一符号
を付して説明を省略する。(Embodiment 4) FIG. 4 shows a fourth embodiment of the present invention. Note that parts corresponding to those in the first to third embodiments are designated by the same reference numerals, and explanations thereof will be omitted.
この実施例は、前記第３実施例において進相形
安定器を使用し、さらにFEC５と半導体スイツ
チ１０の直列回路と並列に10〜300KΩの抵抗１
２を加えたものである。この抵抗１２は進相形安
定器８の直列コンデンサ１３の放電抵抗の役割を
果し、放電灯始動時のアンバランスな電流による
進相コンデンサの一方向への充電によつて、始動
回路がブロツクされるのを防ぐものである。 This embodiment uses a phase advance type ballast in the third embodiment, and also has a resistor of 10 to 300KΩ connected in parallel to the series circuit of the FEC 5 and the semiconductor switch 10.
This is the addition of 2. This resistor 12 serves as a discharge resistance for the series capacitor 13 of the phase advance type ballast 8, and the starting circuit is blocked by charging the phase advance capacitor in one direction due to the unbalanced current when starting the discharge lamp. This is to prevent
（発明の効果）
以上の説明から明らかなように、本発明によれ
ば、放電灯の点灯中は２個の熱応動開閉器よつ
て、FEC回路が電源から切り離されるとともに、
始動補助電極の回路を通してFECに電圧が印加
されるのも防止されるため、FECの高電圧発生
機能が低下したり、絶縁抵抗が低下するようなこ
とはない。また、放電灯の再始動時は、２個の熱
応動開閉器が完全に閉じた後でなければ高電圧Ｅ
パルスは発生しないので、無駄なパルスの発生に
よる点灯回路の損傷や危険性を防止することがで
きる。(Effects of the Invention) As is clear from the above description, according to the present invention, while the discharge lamp is lit, the FEC circuit is disconnected from the power supply by the two thermally responsive switches, and
Since voltage is also prevented from being applied to the FEC through the starting auxiliary electrode circuit, the high voltage generation function of the FEC will not be degraded and the insulation resistance will not be reduced. In addition, when restarting a discharge lamp, the high voltage
Since no pulses are generated, damage to the lighting circuit or danger due to the generation of unnecessary pulses can be prevented.
第１図は本発明の第１実施例を示す回路図、第
２図は本発明の第２実施例を示す回路図、第３図
は本発明の第３実施例を示す回路図、第４図は本
発明の第４実施例を示す回路図、第５図、第６図
は従来放電灯の回路図、第７図は従来放電灯の
FECに加わる電圧波形図、第８図はFECによつ
て発生する高電圧パルスの波形図。
１……発光管、２ａ，２ｂ……主電極、３……
始動補助電極、４，４ａ，４ｂ……熱応動開閉
器、５……FEC、６……抵抗、７……外球、８
……安定器、９……交流電源、１０……半導体ス
イツチ、１１，１２……抵抗、１３……コンデン
サ。
Fig. 1 is a circuit diagram showing a first embodiment of the present invention, Fig. 2 is a circuit diagram showing a second embodiment of the invention, Fig. 3 is a circuit diagram showing a third embodiment of the invention, and Fig. 4 is a circuit diagram showing a third embodiment of the invention. The figure is a circuit diagram showing the fourth embodiment of the present invention, Figures 5 and 6 are circuit diagrams of a conventional discharge lamp, and Figure 7 is a circuit diagram of a conventional discharge lamp.
Figure 8 is a waveform diagram of the voltage applied to FEC. Figure 8 is a waveform diagram of the high voltage pulse generated by FEC. 1... Arc tube, 2a, 2b... Main electrode, 3...
Starting auxiliary electrode, 4, 4a, 4b...thermally responsive switch, 5...FEC, 6...resistance, 7...outer ball, 8
... Ballast, 9 ... AC power supply, 10 ... semiconductor switch, 11, 12 ... resistor, 13 ... capacitor.
Claims (1)
近接して設けられた始動補助電極３とを有し内部
に水銀及び希ガスと共に金属ハロゲン化物を封入
してなる発光管１と並列に、常温閉接点を有する
２個の熱応動開閉器４ａ，４ｂと非線形コンデン
サ５の直列回路を接続するとともに、前記始動補
助電極３をこれに近接せざる主電極２ａに対して
抵抗体６及び前記２個の熱応動開閉器のうちの１
個の熱応動開閉器４ａを介して電気的に接続した
ことを特徴とする高圧金属蒸気放電灯。1 In parallel with an arc tube 1 comprising a pair of main electrodes 2a, 2b and an auxiliary starting electrode 3 provided close to one of the main electrodes, the interior of which is sealed with a metal halide along with mercury and a rare gas. , a series circuit of two thermally responsive switches 4a, 4b having normal temperature closed contacts and a nonlinear capacitor 5 is connected, and the starting auxiliary electrode 3 is connected to the main electrode 2a which is not close to the resistor 6 and the above-mentioned. One of two thermally responsive switches
A high-pressure metal vapor discharge lamp characterized in that it is electrically connected via two thermally responsive switches 4a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25486689A JPH03116687A (en) | 1989-09-29 | 1989-09-29 | High-pressure metallic vapour discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25486689A JPH03116687A (en) | 1989-09-29 | 1989-09-29 | High-pressure metallic vapour discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03116687A JPH03116687A (en) | 1991-05-17 |
| JPH0587959B2 true JPH0587959B2 (en) | 1993-12-20 |
Family
ID=17270930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25486689A Granted JPH03116687A (en) | 1989-09-29 | 1989-09-29 | High-pressure metallic vapour discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03116687A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2814833B2 (en) * | 1992-04-10 | 1998-10-27 | 岩崎電気株式会社 | High pressure steam discharge lamp with built-in starter |
-
1989
- 1989-09-29 JP JP25486689A patent/JPH03116687A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03116687A (en) | 1991-05-17 |
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