DE3604603C2 - - Google Patents

Info

Publication number
DE3604603C2
DE3604603C2 DE3604603A DE3604603A DE3604603C2 DE 3604603 C2 DE3604603 C2 DE 3604603C2 DE 3604603 A DE3604603 A DE 3604603A DE 3604603 A DE3604603 A DE 3604603A DE 3604603 C2 DE3604603 C2 DE 3604603C2
Authority
DE
Germany
Prior art keywords
light
circuit
transistor
circuit according
detection part
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
Application number
DE3604603A
Other languages
German (de)
English (en)
Other versions
DE3604603A1 (de
Inventor
Toshinobu Owariasahi Jp Ando
Koichi Nagoya Jp Isaji
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3604603A1 publication Critical patent/DE3604603A1/de
Application granted granted Critical
Publication of DE3604603C2 publication Critical patent/DE3604603C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/81—Bodies
    • H10H20/814—Bodies having reflecting means, e.g. semiconductor Bragg reflectors
    • 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)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Led Devices (AREA)
  • Electronic Switches (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
DE19863604603 1985-02-23 1986-02-14 Optischer schaltkreis Granted DE3604603A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60034861A JPS61194784A (ja) 1985-02-23 1985-02-23 光学的物体検知回路

Publications (2)

Publication Number Publication Date
DE3604603A1 DE3604603A1 (de) 1986-09-04
DE3604603C2 true DE3604603C2 (enEXAMPLES) 1991-09-26

Family

ID=12425947

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863604603 Granted DE3604603A1 (de) 1985-02-23 1986-02-14 Optischer schaltkreis

Country Status (5)

Country Link
US (1) US4757190A (enEXAMPLES)
JP (1) JPS61194784A (enEXAMPLES)
KR (1) KR900004297B1 (enEXAMPLES)
CN (1) CN1004102B (enEXAMPLES)
DE (1) DE3604603A1 (enEXAMPLES)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163946A1 (de) * 2001-12-22 2003-07-03 Aweco Appliance Sys Gmbh & Co Elektronische Schaltung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117118A (en) * 1988-10-19 1992-05-26 Astex Co., Ltd. Photoelectric switch using an integrated circuit with reduced interconnections
US5254846A (en) * 1990-06-01 1993-10-19 Banner Engineering Corporation Analog photosensor operating on the power from a standard 4-20 ma instrumentation current loop
DE4109121A1 (de) * 1991-03-20 1992-09-24 Bosch Gmbh Robert Sensor, vorzugsweise optischer sensor
US5286967A (en) * 1992-12-04 1994-02-15 Stanley Home Automation Method and apparatus for self-biasing a light beam obstacle detector with a bias light
US5285058A (en) * 1993-01-14 1994-02-08 Schlumberger Industries, Inc. Optical sensor control including the suspension of light radiation
JP2013247296A (ja) * 2012-05-28 2013-12-09 Sharp Corp 光センサおよび電子機器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1623778B2 (de) * 1967-10-19 1976-02-12 Hartmann & Braun Ag, 6000 Frankfurt Lichtschranke
US3631250A (en) * 1970-02-13 1971-12-28 Us Navy Optical positive feedback sensor circuit
DE2410314C2 (de) * 1974-03-05 1983-04-07 Leuze Electronic Kg, 7311 Owen Lichtelektrische Anordnung zur Auslösung von Schaltvorgängen
US4041502A (en) * 1975-12-22 1977-08-09 Williams Tool, Inc. Sedimentation recorder
JPS5491073U (enEXAMPLES) * 1977-12-12 1979-06-27
AU533232B2 (en) * 1979-06-27 1983-11-10 Hochiki Kabushiki Kaisha Photoelectric detector
US4281325A (en) * 1979-08-17 1981-07-28 American Science And Engineering, Inc. Positive feedback meter pulse initiator
US4352013A (en) * 1980-06-02 1982-09-28 Burroughs Corporation Track sensor controller
JPS5732811U (enEXAMPLES) * 1980-08-01 1982-02-20
DE3224531A1 (de) * 1982-07-01 1984-01-05 Danfoss A/S, 6430 Nordborg Bistabile fotoelektrische abtastvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163946A1 (de) * 2001-12-22 2003-07-03 Aweco Appliance Sys Gmbh & Co Elektronische Schaltung

Also Published As

Publication number Publication date
KR860006845A (ko) 1986-09-15
CN1004102B (zh) 1989-05-03
KR900004297B1 (ko) 1990-06-20
JPH0317384B2 (enEXAMPLES) 1991-03-07
JPS61194784A (ja) 1986-08-29
CN86100687A (zh) 1986-08-20
US4757190A (en) 1988-07-12
DE3604603A1 (de) 1986-09-04

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee