JPS641499U - - Google Patents
Info
- Publication number
- JPS641499U JPS641499U JP9558787U JP9558787U JPS641499U JP S641499 U JPS641499 U JP S641499U JP 9558787 U JP9558787 U JP 9558787U JP 9558787 U JP9558787 U JP 9558787U JP S641499 U JPS641499 U JP S641499U
- Authority
- JP
- Japan
- Prior art keywords
- illumination means
- brightness
- lighting
- signal
- lighting failure
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
- Audible And Visible Signals (AREA)
Description
図面は本考案の一実施例を示す回路説明図であ
る。
１……けい光灯、４……光量検出部、５……表
示手段。
The drawing is a circuit explanatory diagram showing an embodiment of the present invention. 1...Fluorescent lamp, 4...Light amount detection unit, 5...Display means.
Claims (1)
レベル以下の場合照明手段の点灯不良状態を示す
信号を出力する光量検出部とこの信号に基づいて
照明手段の点灯不良を表示する表示手段とを具備
した照明装置。 A light quantity detection unit detects the brightness of the illumination means and outputs a signal indicating a lighting failure state of the illumination means when the brightness is below a predetermined level, and a display means displays a lighting failure of the illumination means based on this signal. A lighting device equipped with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9558787U JPS641499U (en) | 1987-06-22 | 1987-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9558787U JPS641499U (en) | 1987-06-22 | 1987-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS641499U true JPS641499U (en) | 1989-01-06 |
Family
ID=30960299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9558787U Pending JPS641499U (en) | 1987-06-22 | 1987-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS641499U (en) |
-
1987
- 1987-06-22 JP JP9558787U patent/JPS641499U/ja active Pending
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