JPS5748605A - Detector for relative distance - Google Patents

Detector for relative distance

Info

Publication number
JPS5748605A
JPS5748605A JP12439280A JP12439280A JPS5748605A JP S5748605 A JPS5748605 A JP S5748605A JP 12439280 A JP12439280 A JP 12439280A JP 12439280 A JP12439280 A JP 12439280A JP S5748605 A JPS5748605 A JP S5748605A
Authority
JP
Japan
Prior art keywords
detected
modulation frequencies
luminous fluxes
objects
detecting
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
JP12439280A
Other languages
Japanese (ja)
Inventor
Kenro Motoda
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.)
Motoda Electronics Co Ltd
Original Assignee
Motoda Electronics Co 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 Motoda Electronics Co Ltd filed Critical Motoda Electronics Co Ltd
Priority to JP12439280A priority Critical patent/JPS5748605A/en
Publication of JPS5748605A publication Critical patent/JPS5748605A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE:To perform accurate measurement with simple constitution by projecting plural luminous fluxes of different modulation frequencies diagonally at suitable intervals, detecting the reflected light thereof and detecting the modulation frequencies thereof. CONSTITUTION:A light projector 10 and a photodetector 20 are provided to one A of two objects A and B, and the opposite other is used as a reflection surface 2. The plural luminous fluxes 3a-3f moduated by different frequeicies are emitted from the projector of the device 10, and are crossed in the scale positions 7a-7f corresponding to an optical axis 5. A field space 6 is measured with the device 20. The modulation frequencies of the luminous fluxes detected with the device 20 are detected, whereby the relative distances between the two objects A and B are detected.
JP12439280A 1980-09-08 1980-09-08 Detector for relative distance Pending JPS5748605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12439280A JPS5748605A (en) 1980-09-08 1980-09-08 Detector for relative distance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12439280A JPS5748605A (en) 1980-09-08 1980-09-08 Detector for relative distance

Publications (1)

Publication Number Publication Date
JPS5748605A true JPS5748605A (en) 1982-03-20

Family

ID=14884281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12439280A Pending JPS5748605A (en) 1980-09-08 1980-09-08 Detector for relative distance

Country Status (1)

Country Link
JP (1) JPS5748605A (en)

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