JPS64482A - Reflected light barrier device - Google Patents

Reflected light barrier device

Info

Publication number
JPS64482A
JPS64482A JP63057337A JP5733788A JPS64482A JP S64482 A JPS64482 A JP S64482A JP 63057337 A JP63057337 A JP 63057337A JP 5733788 A JP5733788 A JP 5733788A JP S64482 A JPS64482 A JP S64482A
Authority
JP
Japan
Prior art keywords
lens
reflector
mirrors
light
photodetector
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
Application number
JP63057337A
Other languages
English (en)
Other versions
JPH01482A (ja
Inventor
Thomas Meinert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erwin Sick GmbH Optik Elektronik
Original Assignee
Erwin Sick GmbH Optik Elektronik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Erwin Sick GmbH Optik Elektronik filed Critical Erwin Sick GmbH Optik Elektronik
Publication of JPH01482A publication Critical patent/JPH01482A/ja
Publication of JPS64482A publication Critical patent/JPS64482A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Optical Communication System (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Lenses (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Focusing (AREA)
JP63057337A 1987-03-12 1988-03-10 Reflected light barrier device Pending JPS64482A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873707986 DE3707986A1 (de) 1987-03-12 1987-03-12 Reflexionslichtschranke
DE3707986.7 1987-03-12

Publications (2)

Publication Number Publication Date
JPH01482A JPH01482A (ja) 1989-01-05
JPS64482A true JPS64482A (en) 1989-01-05

Family

ID=6322880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63057337A Pending JPS64482A (en) 1987-03-12 1988-03-10 Reflected light barrier device

Country Status (4)

Country Link
US (1) US4816667A (ja)
EP (1) EP0281748A3 (ja)
JP (1) JPS64482A (ja)
DE (1) DE3707986A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68906351T2 (de) * 1988-11-11 1994-01-05 Omron Tateisi Electronics Co Elektronisches Gerät mit einem photoelektrischen Schalter.
US5187361A (en) * 1989-04-25 1993-02-16 Copal Company Limited Object detection apparatus of the photoelectric reflection type with sampled data
DE3923281A1 (de) * 1989-07-14 1991-01-24 Bosch Gmbh Robert Schmutzsensor fuer kraftfahrzeug-scheiben
NL8902314A (nl) * 1989-09-15 1991-04-02 Michiel Kassies Werkwijze en inrichting voor het detecteren van een voorwerp.
DE4029766A1 (de) * 1990-09-20 1992-04-02 Leuze Electronic Gmbh & Co Reflexionslichtschranke
KR100319548B1 (ko) * 1999-03-22 2002-01-05 김재한 게이트 통과 객체의 방향 검출 및 통보 장치
US6946643B1 (en) * 2003-01-17 2005-09-20 Banner Engineering Corporation Retro-reflective photoelectric sensor
US10393918B2 (en) 2017-03-28 2019-08-27 Banner Engineering Corp. Retro-reflective sensor with multiple detectors
DE102017128450A1 (de) * 2017-11-30 2019-06-06 Pepperl + Fuchs Gmbh Reflexionslichtschranke zum Nachweis von Objekten in einem Erfassungsbereich

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234391A (en) * 1975-09-12 1977-03-16 Hitachi Ltd Production method of transparent electrode film

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7300004U (de) * 1973-08-30 Leuze Electronic Kg Lichtelektrische Schranke
DE765353C (de) * 1940-08-16 1953-09-28 Hans Dr Richter Lichtstrahlengitter fuer lichtelektrische Anlagen
US2936689A (en) * 1950-10-11 1960-05-17 Kirchhoff Kurt Close-up attachment for photographic cameras
IT1161307B (it) * 1978-08-25 1987-03-18 Datalogic Spa Barriera fotoelettrica in particolare dispositivo di sicurezza
US4224608A (en) * 1978-11-13 1980-09-23 Detection Systems, Inc. Single terminal detection system
DE2921110A1 (de) * 1979-05-25 1980-12-04 Leuze Electronic Kg Einen lichtsender und einen lichtempfaenger aufweisende lichtelektrische anordnung
US4339660A (en) * 1980-05-15 1982-07-13 Erwin Sick Gmbh Optik-Elektronik Reflection light barrier apparatus for recognizing both strongly and weakly reflecting objects
DE3269905D1 (en) * 1981-12-22 1986-04-17 Elesta Ag Elektronik Reflection light barrier with an extended detection range
DE3237035C1 (de) * 1982-10-06 1984-01-26 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Reflexionslichtschranke

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234391A (en) * 1975-09-12 1977-03-16 Hitachi Ltd Production method of transparent electrode film

Also Published As

Publication number Publication date
DE3707986A1 (de) 1988-09-22
EP0281748A3 (de) 1989-11-29
EP0281748A2 (de) 1988-09-14
US4816667A (en) 1989-03-28
DE3707986C2 (ja) 1989-05-11

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