JPS5255652A - System for detecting object by light - Google Patents

System for detecting object by light

Info

Publication number
JPS5255652A
JPS5255652A JP50131855A JP13185575A JPS5255652A JP S5255652 A JPS5255652 A JP S5255652A JP 50131855 A JP50131855 A JP 50131855A JP 13185575 A JP13185575 A JP 13185575A JP S5255652 A JPS5255652 A JP S5255652A
Authority
JP
Japan
Prior art keywords
light
detecting object
electric signal
possibleto
render
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
JP50131855A
Other languages
Japanese (ja)
Inventor
Masaru Sakamoto
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
Priority to JP50131855A priority Critical patent/JPS5255652A/en
Publication of JPS5255652A publication Critical patent/JPS5255652A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To render it possibleto detect an object with a simple circuit without requiring any initial regulation and any correction with time by converting the light reflected from the object being detected to an electric signal with the stored electric signal corresponding to a specific state of the object.
COPYRIGHT: (C)1977,JPO&Japio
JP50131855A 1975-11-01 1975-11-01 System for detecting object by light Pending JPS5255652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50131855A JPS5255652A (en) 1975-11-01 1975-11-01 System for detecting object by light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50131855A JPS5255652A (en) 1975-11-01 1975-11-01 System for detecting object by light

Publications (1)

Publication Number Publication Date
JPS5255652A true JPS5255652A (en) 1977-05-07

Family

ID=15067687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50131855A Pending JPS5255652A (en) 1975-11-01 1975-11-01 System for detecting object by light

Country Status (1)

Country Link
JP (1) JPS5255652A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668751U (en) * 1979-10-31 1981-06-08
JPS6054986U (en) * 1983-09-22 1985-04-17 株式会社三協精機製作所 Blocker detection circuit
JPH01214703A (en) * 1988-02-24 1989-08-29 Fuji Electric Co Ltd Mark sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668751U (en) * 1979-10-31 1981-06-08
JPS6054986U (en) * 1983-09-22 1985-04-17 株式会社三協精機製作所 Blocker detection circuit
JPH01214703A (en) * 1988-02-24 1989-08-29 Fuji Electric Co Ltd Mark sensor

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