JPS6086959U - Illuminator dirt detection device - Google Patents
Illuminator dirt detection deviceInfo
- Publication number
- JPS6086959U JPS6086959U JP17906283U JP17906283U JPS6086959U JP S6086959 U JPS6086959 U JP S6086959U JP 17906283 U JP17906283 U JP 17906283U JP 17906283 U JP17906283 U JP 17906283U JP S6086959 U JPS6086959 U JP S6086959U
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting section
- detection device
- illuminator
- light emitting
- 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.)
- Granted
Links
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (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構造概略図、第２図は
そのブロック図、第３図は自動燈火装置の動作説明図、
第４図は汚れ検出装置の動作説明図、第５図は汚れ付着
による光路変化の模式図、第６図Ａ及びＢは汚れ検出装
置の判断説明図をそれぞれ示す。
１・・・電球、３・・・保護板、４・・・第１の光セン
サ、６・・・第２の光センサ、７・・・洞部。FIG. 1 is a structural schematic diagram showing an embodiment of the present invention, FIG. 2 is a block diagram thereof, and FIG. 3 is an explanatory diagram of the operation of the automatic lighting device.
FIG. 4 is an explanatory diagram of the operation of the dirt detection device, FIG. 5 is a schematic diagram of changes in the optical path due to dirt adhesion, and FIGS. 6A and 6B are illustrations of judgments made by the dirt detection device. DESCRIPTION OF SYMBOLS 1... Bulb, 3... Protective plate, 4... First optical sensor, 6... Second optical sensor, 7... Cavity.
Claims (1)
と、前記発光部からの光のうち前記保護板により反射さ
れる光を検出する第１の光センサと、前記保護板の近傍
に設けられ前記第１の光センサに前記発光部以外から照
射される光を検出する第２の光、センサと、 前記第１の光センサにより検出された光の強さがその所
定値以上でかつ前記第２の光センサにより検出された光
の強さがその所定値以下である場合に前記保護板及び第
２の光センサ受光部に汚れが付着したと判断する判断部
とを備えたことを特徴とする照明器の汚れ検出装置。[Claims for Utility Model Registration] A light emitting section, a protective plate that transmits light from the light emitting section, and a first optical sensor that detects light reflected by the protective plate among the light from the light emitting section. and a second light sensor provided near the protection plate to detect light irradiated onto the first light sensor from a source other than the light emitting section; It is determined that dirt has adhered to the protection plate and the light receiving portion of the second photosensor when the intensity of the light detected by the second photosensor is not more than the predetermined value. A dirt detection device for an illuminator, comprising: a determination section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17906283U JPS6086959U (en) | 1983-11-18 | 1983-11-18 | Illuminator dirt detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17906283U JPS6086959U (en) | 1983-11-18 | 1983-11-18 | Illuminator dirt detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6086959U true JPS6086959U (en) | 1985-06-14 |
| JPH0236115Y2 JPH0236115Y2 (en) | 1990-10-02 |
Family
ID=30388596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17906283U Granted JPS6086959U (en) | 1983-11-18 | 1983-11-18 | Illuminator dirt detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6086959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011113940A (en) * | 2009-11-30 | 2011-06-09 | Mitsubishi Electric Corp | Lighting fixture |
-
1983
- 1983-11-18 JP JP17906283U patent/JPS6086959U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011113940A (en) * | 2009-11-30 | 2011-06-09 | Mitsubishi Electric Corp | Lighting fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0236115Y2 (en) | 1990-10-02 |
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