JPS56127276A - Photoelectric switch - Google Patents

Photoelectric switch

Info

Publication number
JPS56127276A
JPS56127276A JP2997080A JP2997080A JPS56127276A JP S56127276 A JPS56127276 A JP S56127276A JP 2997080 A JP2997080 A JP 2997080A JP 2997080 A JP2997080 A JP 2997080A JP S56127276 A JPS56127276 A JP S56127276A
Authority
JP
Japan
Prior art keywords
light
light source
control
lens
irradiated
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
JP2997080A
Other languages
Japanese (ja)
Inventor
Fumiaki Sai
Seiji Oku
Ichiro Higuchi
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP2997080A priority Critical patent/JPS56127276A/en
Publication of JPS56127276A publication Critical patent/JPS56127276A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

PURPOSE:To facilitate an easy reproduction of control and simplify the control function, by leading a part of the light given from a built-in light source to a reference photodetector to secure a substantial offset for the variation of the light source and at the same time providing a knob for control of the volume of the reference light. CONSTITUTION:The light given from the light source 2 such as an incandescent lamp or the like within the housing 1 is irradiated to the object 6 to be detected through the object lens 5 through the projecting lens 3 and transmitting through the half-mirror 4. The light reflected from the object 6 is reflected by the mirror 4 and through the lens 5 and then irradiated to the photodetector 8 through the light receiving lens 7. On the other hand, the light given from the light source 2 is reflected and condensed by the concave mirror 9 and then irradiated to the photodetector 12 through the photoconducting bars 10 and 11. As a reslt, the variation of the light source is offset substantially, and at the same time the reproduction of control is facilitated with a simplified control function by controlling the volume of the reference light through an adjustment of the masking plate 16 with the control knob 13.
JP2997080A 1980-03-10 1980-03-10 Photoelectric switch Pending JPS56127276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2997080A JPS56127276A (en) 1980-03-10 1980-03-10 Photoelectric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2997080A JPS56127276A (en) 1980-03-10 1980-03-10 Photoelectric switch

Publications (1)

Publication Number Publication Date
JPS56127276A true JPS56127276A (en) 1981-10-05

Family

ID=12290814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2997080A Pending JPS56127276A (en) 1980-03-10 1980-03-10 Photoelectric switch

Country Status (1)

Country Link
JP (1) JPS56127276A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121744U (en) * 1986-01-25 1987-08-01
CN106130533A (en) * 2016-08-23 2016-11-16 惠州华阳通用电子有限公司 A kind of optoelectronic induction knob assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49121581A (en) * 1973-03-22 1974-11-20
JPS5258429A (en) * 1975-11-10 1977-05-13 Hitachi Ltd Pattern recognition unit
JPS52146604A (en) * 1976-06-01 1977-12-06 Olympus Optical Co Ltd Information reader using laser beam

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49121581A (en) * 1973-03-22 1974-11-20
JPS5258429A (en) * 1975-11-10 1977-05-13 Hitachi Ltd Pattern recognition unit
JPS52146604A (en) * 1976-06-01 1977-12-06 Olympus Optical Co Ltd Information reader using laser beam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121744U (en) * 1986-01-25 1987-08-01
JPH0447879Y2 (en) * 1986-01-25 1992-11-11
CN106130533A (en) * 2016-08-23 2016-11-16 惠州华阳通用电子有限公司 A kind of optoelectronic induction knob assembly
CN106130533B (en) * 2016-08-23 2023-06-06 惠州华阳通用电子有限公司 Photoelectric sensing knob assembly

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