JPH0255971B2 - - Google Patents
Info
- Publication number
- JPH0255971B2 JPH0255971B2 JP56065426A JP6542681A JPH0255971B2 JP H0255971 B2 JPH0255971 B2 JP H0255971B2 JP 56065426 A JP56065426 A JP 56065426A JP 6542681 A JP6542681 A JP 6542681A JP H0255971 B2 JPH0255971 B2 JP H0255971B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- output
- circuit
- voltage
- signal
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 14
- 108091008695 photoreceptors Proteins 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 description 18
- 238000009958 sewing Methods 0.000 description 16
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
Landscapes
- Electronic Switches (AREA)
- Sewing Machines And Sewing (AREA)
- Fire-Detection Mechanisms (AREA)
- Manipulation Of Pulses (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Burglar Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
- Control Of Amplification And Gain Control (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56065426A JPS57180234A (en) | 1981-04-30 | 1981-04-30 | Malfunction preventing circuit for photodetector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56065426A JPS57180234A (en) | 1981-04-30 | 1981-04-30 | Malfunction preventing circuit for photodetector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57180234A JPS57180234A (en) | 1982-11-06 |
| JPH0255971B2 true JPH0255971B2 (US06589383-20030708-C00041.png) | 1990-11-28 |
Family
ID=13286733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56065426A Granted JPS57180234A (en) | 1981-04-30 | 1981-04-30 | Malfunction preventing circuit for photodetector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57180234A (US06589383-20030708-C00041.png) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118999A (ja) * | 1983-11-30 | 1985-06-26 | 松下電工株式会社 | 煙感知器 |
| JPS6193035U (US06589383-20030708-C00041.png) * | 1984-11-24 | 1986-06-16 | ||
| FR2582683B1 (fr) * | 1985-06-03 | 1988-05-27 | Prouvost Sa | Dispositif de detection de la variation d'epaisseur d'une etoffe et son procede d'etalonnage |
| JPS62139137U (US06589383-20030708-C00041.png) * | 1986-02-25 | 1987-09-02 | ||
| JP4725823B2 (ja) * | 2000-08-08 | 2011-07-13 | オプテックス株式会社 | 妨害対策を行った侵入検知センサ |
| WO2016199267A1 (ja) * | 2015-06-11 | 2016-12-15 | 日立マクセル株式会社 | 光測距装置及びその制御方法、及びそれを用いたジェスチャ検出装置 |
-
1981
- 1981-04-30 JP JP56065426A patent/JPS57180234A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57180234A (en) | 1982-11-06 |
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