JPS5881895U - Kei light fixture with lamp life indicator - Google Patents
Kei light fixture with lamp life indicatorInfo
- Publication number
- JPS5881895U JPS5881895U JP17702481U JP17702481U JPS5881895U JP S5881895 U JPS5881895 U JP S5881895U JP 17702481 U JP17702481 U JP 17702481U JP 17702481 U JP17702481 U JP 17702481U JP S5881895 U JPS5881895 U JP S5881895U
- Authority
- JP
- Japan
- Prior art keywords
- light fixture
- kei
- lamp life
- life indicator
- reference 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示す斜視図、第２図は同上
のランプ寿命検出装置部の回路を示すブロック図、第３
図は同上のフィラメント部分の略図、第４図は点灯時間
に対するフィラメント両端電圧特性図である。FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a block diagram showing the circuit of the lamp life detection device section, and FIG.
The figure is a schematic diagram of the same filament portion as above, and FIG. 4 is a characteristic diagram of the voltage across the filament with respect to lighting time.
Claims (1)
検出する寿命検出回路どＪ核検出回路の出力と基準値と
を比較し該検出力が基準値以上の時に出力する寿命表示
回路とを具備したことを特徴とするランプ寿命表示付螢
光灯器具。A lifespan detection circuit for detecting the voltage across at least one filament of the fluorescent lamp and a lifespan display circuit that compares the output of the J nuclear detection circuit with a reference value and outputs an output when the detection power is equal to or higher than the reference value. A fluorescent light fixture with a lamp life indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17702481U JPS5881895U (en) | 1981-11-28 | 1981-11-28 | Kei light fixture with lamp life indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17702481U JPS5881895U (en) | 1981-11-28 | 1981-11-28 | Kei light fixture with lamp life indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5881895U true JPS5881895U (en) | 1983-06-02 |
Family
ID=29970523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17702481U Pending JPS5881895U (en) | 1981-11-28 | 1981-11-28 | Kei light fixture with lamp life indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5881895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03296716A (en) * | 1990-04-17 | 1991-12-27 | Pioneer Electron Corp | Image display device |
-
1981
- 1981-11-28 JP JP17702481U patent/JPS5881895U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03296716A (en) * | 1990-04-17 | 1991-12-27 | Pioneer Electron Corp | Image display device |
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