JPH01112490U - - Google Patents
Info
- Publication number
- JPH01112490U JPH01112490U JP748088U JP748088U JPH01112490U JP H01112490 U JPH01112490 U JP H01112490U JP 748088 U JP748088 U JP 748088U JP 748088 U JP748088 U JP 748088U JP H01112490 U JPH01112490 U JP H01112490U
- Authority
- JP
- Japan
- Prior art keywords
- light
- movable member
- light receiver
- sensor circuit
- optical sensor
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Geophysics And Detection Of Objects (AREA)
Description
第1図及び第2図は本考案の一実施例にかかる
光センサー回路図を示し、第1図は可動部材が退
出位置にある状態を、第2図は可動部材が進入位
置にある状態をそれぞれ示す回路である。第3図
及び第4図は従来の光センサー回路図を示し、第
3図は可動部材が退出位置にある状態を、第4図
は可動部材が進入位置にある状態をそれぞれ示す
回路図である。
(符号の説明)、1……可動部材、LED……
発光ダイオード(発光器)、PHTR1……フオ
トトランジスタ(受光器)、PHTR2……フオ
トトランジスタ(第二の受光器)。
1 and 2 show optical sensor circuit diagrams according to an embodiment of the present invention, in which FIG. 1 shows a state in which the movable member is in the exit position, and FIG. 2 shows a state in which the movable member is in the approach position. These are the circuits shown respectively. 3 and 4 show conventional optical sensor circuit diagrams, with FIG. 3 showing a state in which the movable member is in the exit position, and FIG. 4 showing a state in which the movable member is in the entering position, respectively. . (Explanation of symbols), 1...Movable member, LED...
Light emitting diode (light emitter), PHTR1... phototransistor (light receiver), PHTR2... phototransistor (second light receiver).
Claims (1)
配設し、受光器の出力により可動部材の有無を検
出する光センサー回路において、 上記可動部材によつて反射された反射光を検出
する受ける第二の受光器を設けたことを特徴とす
る光センサー回路。[Scope of Claim for Utility Model Registration] In an optical sensor circuit that includes a light emitter and a light receiver arranged on both sides of a moving path of a movable member, and detects the presence or absence of a movable member based on the output of the light receiver, A light sensor circuit characterized in that a second light receiver is provided to detect and receive reflected light.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP748088U JPH01112490U (en) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP748088U JPH01112490U (en) | 1988-01-22 | 1988-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01112490U true JPH01112490U (en) | 1989-07-28 |
Family
ID=31212522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP748088U Pending JPH01112490U (en) | 1988-01-22 | 1988-01-22 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01112490U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013195355A (en) * | 2012-03-22 | 2013-09-30 | Mitsubishi Electric Corp | Photoelectric sensor and failure detection method for photoelectric sensor |
-
1988
- 1988-01-22 JP JP748088U patent/JPH01112490U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013195355A (en) * | 2012-03-22 | 2013-09-30 | Mitsubishi Electric Corp | Photoelectric sensor and failure detection method for photoelectric sensor |
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