JPH02108440U - - Google Patents
Info
- Publication number
- JPH02108440U JPH02108440U JP1658189U JP1658189U JPH02108440U JP H02108440 U JPH02108440 U JP H02108440U JP 1658189 U JP1658189 U JP 1658189U JP 1658189 U JP1658189 U JP 1658189U JP H02108440 U JPH02108440 U JP H02108440U
- Authority
- JP
- Japan
- Prior art keywords
- light
- wavelength band
- light receiving
- section
- light projecting
- 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
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第１図及び第２図は本考案の第１実施例を示す
もので、第１図は全体の構成を概略的に示すブロ
ツク図、第２図は各回路からの信号波形図である
。また、第３図、第４図、第５図は本考案の第２
、第３、第４実施例を示す第１図相当図である。
そして、第６図及び第７図は本考案のその他の実
施例を示しており、第６図は投光回路を示す電気
回路図、第７図は受光回路を示すブロツク図であ
る。
図中、１は投光器、２は投光ドライバ、３は発
振回路、４，５，６は発光ダイオード（投光部）
、１０は受光器、１１，１２，１３はフオトダイ
オード、１４は増幅回路、１５，１６，１７は光
フイルタ、１８，１９，２０は受光部、２１は積
分回路、２２はコンパレータ、２３は出力ドライ
バ、２７乃至３１は発光ダイオード、３２乃至３
６はフオトダイオード、３７乃至４１は光フイル
タ、４３乃至４５はフオトダイオードである。
1 and 2 show a first embodiment of the present invention. FIG. 1 is a block diagram schematically showing the overall configuration, and FIG. 2 is a signal waveform diagram from each circuit. In addition, Figures 3, 4, and 5 are the second figures of the present invention.
FIG. 2 is a diagram corresponding to FIG. 1 showing the third and fourth embodiments.
6 and 7 show other embodiments of the present invention, in which FIG. 6 is an electric circuit diagram showing a light projecting circuit, and FIG. 7 is a block diagram showing a light receiving circuit. In the figure, 1 is a light projector, 2 is a light projector driver, 3 is an oscillation circuit, and 4, 5, and 6 are light emitting diodes (light projector).
, 10 is a photoreceiver, 11, 12, 13 are photodiodes, 14 is an amplifier circuit, 15, 16, 17 are optical filters, 18, 19, 20 are photodetectors, 21 is an integration circuit, 22 is a comparator, 23 is an output Drivers 27 to 31 are light emitting diodes, 32 to 3
6 is a photodiode, 37 to 41 are optical filters, and 43 to 45 are photodiodes.
Claims (1)
と夫々対向配置された複数の受光部とを備えた光
電スイツチにおいて、前記各受光部の受光波長帯
域は、その受光部と対向された投光部の投光波長
帯域を含み且つ上記投光部に隣接する投光部の投
光波長帯域を含まないことを特徴とする光電スイ
ツチ。 In a photoelectric switch including a plurality of light emitting sections arranged in parallel and a plurality of light receiving sections arranged opposite to these light emitting sections, the light receiving wavelength band of each light receiving section is set opposite to the light receiving section. 1. A photoelectric switch comprising a light emission wavelength band of a light projecting section and not including a light projecting wavelength band of a light projecting section adjacent to the light projecting section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1658189U JPH02108440U (en) | 1989-02-15 | 1989-02-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1658189U JPH02108440U (en) | 1989-02-15 | 1989-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02108440U true JPH02108440U (en) | 1990-08-29 |
Family
ID=31229641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1658189U Pending JPH02108440U (en) | 1989-02-15 | 1989-02-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02108440U (en) |
-
1989
- 1989-02-15 JP JP1658189U patent/JPH02108440U/ja active Pending