JPS5895541U - photoelectric switch - Google Patents
photoelectric switchInfo
- Publication number
- JPS5895541U JPS5895541U JP19133681U JP19133681U JPS5895541U JP S5895541 U JPS5895541 U JP S5895541U JP 19133681 U JP19133681 U JP 19133681U JP 19133681 U JP19133681 U JP 19133681U JP S5895541 U JPS5895541 U JP S5895541U
- Authority
- JP
- Japan
- Prior art keywords
- photoelectric switch
- counter
- light
- output
- receiving element
- 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
- Electronic Switches (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は先行技術を示す回路図、第２因は先行技術の動
作を説明するための波形図、第３図は本考案の一実施例
のブロック図、第４図は第３図の実施例の動作を説明す
るための波形図、第５図は本考案の他の実施例のブロッ
ク図、第６図は第５図の実施例の動作を説明するための
波形図である。
１０・・・投光手段、１１・・・発振回路、１３・・・
受光素子、１５・・・制御回路、１６・・・負荷、１８
・・・カウンタ、１９・・・レベル弁別回路、２３・・
・出力保持回路。Fig. 1 is a circuit diagram showing the prior art, the second factor is a waveform diagram for explaining the operation of the prior art, Fig. 3 is a block diagram of an embodiment of the present invention, and Fig. 4 is an implementation of Fig. 3. FIG. 5 is a block diagram of another embodiment of the present invention, and FIG. 6 is a waveform diagram for explaining the operation of the embodiment of FIG. 5. 10... Light projecting means, 11... Oscillation circuit, 13...
Light receiving element, 15... Control circuit, 16... Load, 18
...Counter, 19...Level discrimination circuit, 23...
・Output holding circuit.
Claims (2)
光手段と、その投光手段からの光を受光する受光素子と
、受光素子からの出力をレベル弁別して得られた検出信
号により負荷を制御するようにした制御回路とを含む光
電ス・イッチにおいて、前記制御回路には、前記発振回
路の発振信号を前記検出信号に応答して設定値に達する
まで計数するカウンタと、前記検出信号と前記カウンタ
の計数動作が終了するまで保持して引きのばす出力保持
回路とが備えられたことを特徴とする光電スイッチ。(1) A light projecting means that emits light modulated by an oscillation circuit, a light receiving element that receives the light from the light projecting means, and a detection signal obtained by level-discriminating the output from the light receiving element. In the photoelectric switch, the control circuit includes a counter that counts the oscillation signal of the oscillation circuit until it reaches a set value in response to the detection signal; A photoelectric switch comprising: an output holding circuit that holds and extends the output until the counting operation of the counter is completed.
ための設定器が付設されることを特徴とする実用新案登
録請求の範囲第１項記載の光電スイッチ。(2) The photoelectric switch according to claim 1, wherein the counter is provided with a setting device for arbitrarily changing the set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19133681U JPS5895541U (en) | 1981-12-21 | 1981-12-21 | photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19133681U JPS5895541U (en) | 1981-12-21 | 1981-12-21 | photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5895541U true JPS5895541U (en) | 1983-06-29 |
Family
ID=30104807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19133681U Pending JPS5895541U (en) | 1981-12-21 | 1981-12-21 | photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5895541U (en) |
-
1981
- 1981-12-21 JP JP19133681U patent/JPS5895541U/en active Pending
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