JPH0146039B2 - - Google Patents
Info
- Publication number
- JPH0146039B2 JPH0146039B2 JP57170808A JP17080882A JPH0146039B2 JP H0146039 B2 JPH0146039 B2 JP H0146039B2 JP 57170808 A JP57170808 A JP 57170808A JP 17080882 A JP17080882 A JP 17080882A JP H0146039 B2 JPH0146039 B2 JP H0146039B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens
- light barrier
- lenses
- retroreflector
- 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
Links
- 230000004888 barrier function Effects 0.000 claims description 71
- 230000003287 optical effect Effects 0.000 claims description 16
- 108091008695 photoreceptors Proteins 0.000 claims description 11
- 238000012634 optical imaging Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 24
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/74—Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
- G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Optical Communication System (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813139558 DE3139558C2 (de) | 1981-10-05 | 1981-10-05 | V-Lichtschranke |
DE3139558.9 | 1981-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5871477A JPS5871477A (ja) | 1983-04-28 |
JPH0146039B2 true JPH0146039B2 (enrdf_load_stackoverflow) | 1989-10-05 |
Family
ID=6143434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57170808A Granted JPS5871477A (ja) | 1981-10-05 | 1982-09-29 | V型光障壁 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5871477A (enrdf_load_stackoverflow) |
CH (1) | CH659897A5 (enrdf_load_stackoverflow) |
DE (1) | DE3139558C2 (enrdf_load_stackoverflow) |
FR (1) | FR2514149B1 (enrdf_load_stackoverflow) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4757964B1 (ja) * | 2010-07-03 | 2011-08-24 | 株式会社 エニイワイヤ | 物体検出システム |
CN103109206B (zh) * | 2010-07-03 | 2016-04-20 | 株式会社爱霓威亚 | 物体检测系统 |
DE102017128450A1 (de) * | 2017-11-30 | 2019-06-06 | Pepperl + Fuchs Gmbh | Reflexionslichtschranke zum Nachweis von Objekten in einem Erfassungsbereich |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1441426A1 (de) * | 1964-07-09 | 1969-02-20 | Richter Dr Hans | Lichtgitter mit mehreren verstellbaren Planspiegeln pro Lichtquelle |
DE2456248A1 (de) * | 1974-11-28 | 1976-08-12 | Sick Optik Elektronik Erwin | Einrichtung zur feststellung der anwesenheit eines gegenstandes in einem erkennungsgebiet |
FR2304128A1 (fr) * | 1975-03-14 | 1976-10-08 | Jay Electronique Sa | Dispositif optique pour barriere optique de securite |
CH610159A5 (en) * | 1977-03-17 | 1979-03-30 | Grieshaber Ag | Proximity switching device |
US4207466A (en) * | 1978-02-27 | 1980-06-10 | Drage David J | Infrared proximity detecting apparatus |
JPS5931814B2 (ja) * | 1978-06-19 | 1984-08-04 | オムロン株式会社 | 反射形光電スイッチ |
JPS55108130A (en) * | 1979-02-13 | 1980-08-19 | Omron Tateisi Electronics Co | Reflection type photoelectric switch |
DE2910064A1 (de) * | 1979-03-14 | 1980-09-18 | Sick Optik Elektronik Erwin | Lichtschrankengehaeuse |
DE2921110A1 (de) * | 1979-05-25 | 1980-12-04 | Leuze Electronic Kg | Einen lichtsender und einen lichtempfaenger aufweisende lichtelektrische anordnung |
EP0020879A1 (en) * | 1979-06-06 | 1981-01-07 | Erwin Sick GmbH Optik-Elektronik | Optical electronic distance sensor |
CH652874A5 (de) * | 1980-09-25 | 1985-11-29 | Grieshaber Ag | Optischer naeherungsschalter. |
DE3132835A1 (de) * | 1980-12-29 | 1982-08-19 | Misawa Homes Co., Ltd., Tokyo | Erstellungsverfahren unter verwendung von baueinheiten fuer ein bauwerk |
DE3112560C2 (de) * | 1981-03-30 | 1983-01-27 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Näherungsschalter, der mittels Erregung und Erfassung eines Feldes das Vorhandensein oder Fehlen von feldverändernden Objekten in einem definierten Entfernungsbereich zum Näherungsschalter durch ein binäres Signal anzeigt |
-
1981
- 1981-10-05 DE DE19813139558 patent/DE3139558C2/de not_active Expired
-
1982
- 1982-09-23 CH CH561682A patent/CH659897A5/de not_active IP Right Cessation
- 1982-09-29 JP JP57170808A patent/JPS5871477A/ja active Granted
- 1982-10-04 FR FR8216608A patent/FR2514149B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5871477A (ja) | 1983-04-28 |
DE3139558C2 (de) | 1987-05-27 |
DE3139558A1 (de) | 1983-04-21 |
FR2514149A1 (fr) | 1983-04-08 |
CH659897A5 (de) | 1987-02-27 |
FR2514149B1 (fr) | 1987-07-24 |
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