JPS57108707A - Distance measuring device - Google Patents

Distance measuring device

Info

Publication number
JPS57108707A
JPS57108707A JP18586380A JP18586380A JPS57108707A JP S57108707 A JPS57108707 A JP S57108707A JP 18586380 A JP18586380 A JP 18586380A JP 18586380 A JP18586380 A JP 18586380A JP S57108707 A JPS57108707 A JP S57108707A
Authority
JP
Japan
Prior art keywords
deflection
subject
distance
circuit
output
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
JP18586380A
Other languages
Japanese (ja)
Inventor
Toshi Asano
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP18586380A priority Critical patent/JPS57108707A/en
Publication of JPS57108707A publication Critical patent/JPS57108707A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/02—Details
    • G01C3/06—Use of electric means to obtain final indication
    • G01C3/08—Use of electric radiation detectors

Landscapes

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

Abstract

PURPOSE:To perform the automatic measurement of distance with a high speed and high accuracy, by scanning a subject of measurement with the light flux via a deflecting element and detecting the angle of deflection of the luminous flux when the output of the photodetector set at the image forming surface of an image formed by a lens. CONSTITUTION:A deflecting element 4 is driven by a deflection driving power supply 5 consisting of a rectangular wave oscillating circuit 51 and an integral network 52, and a subject 6 of measurement is scanned by the luminous flux given from a laser 3. The output of a photoelectric detector 2 set on an image forming surface FF' of the image of the subject 6 formed by a lens 1 is supplied to a counter 9 with a peak signal through a peak detecting circuit 8. While the output of the oscillator 51 is differentiated by a differentiating circuit 7 and then applied to the counter 9 as a deflection scanning start signal. Thus the count of pulses is started for a clock oscillator 10 and continued until the peak pulse is supplied from the circuit 8. Based on this count of pulses, an angle of deflection is calculated by an operator 11 to obtain the distance. In such way, a distance is automatically measured in a high speed and high accuracy.
JP18586380A 1980-12-26 1980-12-26 Distance measuring device Pending JPS57108707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18586380A JPS57108707A (en) 1980-12-26 1980-12-26 Distance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18586380A JPS57108707A (en) 1980-12-26 1980-12-26 Distance measuring device

Publications (1)

Publication Number Publication Date
JPS57108707A true JPS57108707A (en) 1982-07-06

Family

ID=16178193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18586380A Pending JPS57108707A (en) 1980-12-26 1980-12-26 Distance measuring device

Country Status (1)

Country Link
JP (1) JPS57108707A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114409A (en) * 1982-12-20 1984-07-02 Mitsubishi Electric Corp Optical distance measuring apparatus
FR2565356A1 (en) * 1984-05-31 1985-12-06 Ici Plc MEANS FOR GUIDING A VEHICLE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114409A (en) * 1982-12-20 1984-07-02 Mitsubishi Electric Corp Optical distance measuring apparatus
JPS6318122B2 (en) * 1982-12-20 1988-04-16 Mitsubishi Electric Corp
FR2565356A1 (en) * 1984-05-31 1985-12-06 Ici Plc MEANS FOR GUIDING A VEHICLE
EP0170363A2 (en) * 1984-05-31 1986-02-05 Imperial Chemical Industries Plc Laser beam vehicle guidance system
US4703820A (en) * 1984-05-31 1987-11-03 Imperial Chemical Industries, Plc Vehicle guidance means

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