JPS5614159A - Direction detector - Google Patents

Direction detector

Info

Publication number
JPS5614159A
JPS5614159A JP8948679A JP8948679A JPS5614159A JP S5614159 A JPS5614159 A JP S5614159A JP 8948679 A JP8948679 A JP 8948679A JP 8948679 A JP8948679 A JP 8948679A JP S5614159 A JPS5614159 A JP S5614159A
Authority
JP
Japan
Prior art keywords
output
light
photodetection
projection
detected
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.)
Granted
Application number
JP8948679A
Other languages
Japanese (ja)
Other versions
JPS6146785B2 (en
Inventor
Takashi Yamamoto
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8948679A priority Critical patent/JPS5614159A/en
Publication of JPS5614159A publication Critical patent/JPS5614159A/en
Publication of JPS6146785B2 publication Critical patent/JPS6146785B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Position Or Direction (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

PURPOSE: To make it possible to move a body to be detected while discriminating its direction, by facilitating installation construction and also by simplifying the structure of a projection-photodetection part by constituting a projection part and photodetection part in one body.
CONSTITUTION: Light emitting elements 21 and 22 of projection part 7 provide light modulation with the output of modulating oscillator OSC1. To discriminate objective light from other natural light, driving circuit 10 is controlled by the output of oscillator OSC2 to supply the output of OSC1 to elements 21 and 22 by turns. At photodetection part 8, photodetector 4 detects reflected light of projected light from detected body 5 and its output is supplied to signal processing circuit 9 after amplification 11. Circuit 9, supplied with the output of OSC2 as well, discriminates between projected light from element 21 and that from 22 at its timing and then detects changes of photodetection signals to decide the existence of detected body 5. Further, its moving direction is decided by discriminating the order of the photodetection signals.
COPYRIGHT: (C)1981,JPO&Japio
JP8948679A 1979-07-14 1979-07-14 Direction detector Granted JPS5614159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8948679A JPS5614159A (en) 1979-07-14 1979-07-14 Direction detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8948679A JPS5614159A (en) 1979-07-14 1979-07-14 Direction detector

Publications (2)

Publication Number Publication Date
JPS5614159A true JPS5614159A (en) 1981-02-10
JPS6146785B2 JPS6146785B2 (en) 1986-10-16

Family

ID=13972063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8948679A Granted JPS5614159A (en) 1979-07-14 1979-07-14 Direction detector

Country Status (1)

Country Link
JP (1) JPS5614159A (en)

Also Published As

Publication number Publication date
JPS6146785B2 (en) 1986-10-16

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