JPS6288400U - - Google Patents
Info
- Publication number
- JPS6288400U JPS6288400U JP18107385U JP18107385U JPS6288400U JP S6288400 U JPS6288400 U JP S6288400U JP 18107385 U JP18107385 U JP 18107385U JP 18107385 U JP18107385 U JP 18107385U JP S6288400 U JPS6288400 U JP S6288400U
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- lighting device
- rectangular wave
- lamp lighting
- limit value
- 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 claims 1
- 150000005309 metal halides Chemical class 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は本考案の第１の実施例の要部回路図、
第２図は同上の第２の実施例の要部回路図、第３
図は従来例の回路図、第４図は同上の動作説明図
、第５図は他の従来例の回路図、第６図は同上の
動作説明図、第７図は本考案の前提になる従来例
の回路図、第８図は同上の開閉制御部の具体回路
例図、第９図は同上の動作説明図、第１０図は管
電圧と放電灯電力の関係特性図であり、ＤＬは放
電灯である。
FIG. 1 is a circuit diagram of the main part of the first embodiment of the present invention,
Figure 2 is a circuit diagram of the main part of the second embodiment same as above;
Figure 4 is a circuit diagram of the conventional example, Figure 4 is an explanatory diagram of the same operation as above, Figure 5 is a circuit diagram of another conventional example, Figure 6 is an explanatory diagram of the same operation as above, and Figure 7 is the premise of the present invention. The circuit diagram of the conventional example, Fig. 8 is a specific circuit example of the opening/closing control section same as above, Fig. 9 is an explanatory diagram of the same operation as above, Fig. 10 is a characteristic diagram of the relationship between tube voltage and discharge lamp power, and DL is It is a discharge lamp.
Claims (1)
於いて、放電灯の寿命末期等の管電圧上昇に限界
値を設定して管電圧がこの限界値を越えたことを
検出する手段を設け、この検出手段の出力により
上記放電灯に流れる矩形波管電流を減少させるよ
うにして成ることを特徴とする放電灯点灯装置。 (2) 上記矩形波管電流の減少制御を、点灯装置
制御部の矩形波発生部のみで行なうようにして成
る実用新案登録請求の範囲第１項記載の放電灯点
灯装置。 (3) 上記放電灯をメタルハライド灯により構成
して成る実用新案登録請求の範囲第１項記載の放
電灯点灯装置。[Claims for Utility Model Registration] (1) In a discharge lamp lighting device that lights a discharge lamp with a square wave, a limit value is set for the increase in tube voltage at the end of the discharge lamp's life, and the tube voltage exceeds this limit value. 1. A discharge lamp lighting device, comprising means for detecting that the voltage exceeds the limit, and the rectangular wave tube current flowing through the discharge lamp is reduced by the output of the detecting means. (2) The discharge lamp lighting device according to claim 1, wherein the reduction control of the rectangular wave tube current is performed only by the rectangular wave generating section of the lighting device control section. (3) The discharge lamp lighting device according to claim 1, wherein the discharge lamp is a metal halide lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18107385U JPS6288400U (en) | 1985-11-25 | 1985-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18107385U JPS6288400U (en) | 1985-11-25 | 1985-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6288400U true JPS6288400U (en) | 1987-06-05 |
Family
ID=31125611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18107385U Pending JPS6288400U (en) | 1985-11-25 | 1985-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6288400U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157091A (en) * | 1982-03-15 | 1983-09-19 | 松下電工株式会社 | Device for firing discharge lamp |
-
1985
- 1985-11-25 JP JP18107385U patent/JPS6288400U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157091A (en) * | 1982-03-15 | 1983-09-19 | 松下電工株式会社 | Device for firing discharge lamp |
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