JPS57175206A - Distance measuring device - Google Patents

Distance measuring device

Info

Publication number
JPS57175206A
JPS57175206A JP6083981A JP6083981A JPS57175206A JP S57175206 A JPS57175206 A JP S57175206A JP 6083981 A JP6083981 A JP 6083981A JP 6083981 A JP6083981 A JP 6083981A JP S57175206 A JPS57175206 A JP S57175206A
Authority
JP
Japan
Prior art keywords
distance
measurement
base line
lens
relating
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
JP6083981A
Other languages
Japanese (ja)
Inventor
Jiro Kazumi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP6083981A priority Critical patent/JPS57175206A/en
Publication of JPS57175206A publication Critical patent/JPS57175206A/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
    • G01C3/085—Use of electric radiation detectors with electronic parallax measurement

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 realize the measurement of distance even for the same periodical repetitive pattern, by providing plural fixed base line distance optical systems having different base line lengths and using the signal relating to the relative position between the two images of the said optical systems. CONSTITUTION:A lens 6 is fixed to a lens 4 with a distance of a prescribed base line length LB different from a base line length LA. In case when a subject which is set at a position with a distance R away from the lens 4 and repeats the same black/white pattern in period T is aimed, the outputs Pai, Pa'i and Pa''i of sensor arrays 1, 2 and 3 each are tured into repetitive waveforms with period T'. Thus the measurement of distance is impossible. Then the output e1 relating to the array 2 is multiplied by LB/LA to obtain e'1. As a result, the coincidence is obtained between the outputs (e') and the output e2 relating to the array 3 in terms of the minimum position at the position corresponding to the distance R. Thus the measurement of distance is possible. In such way, the measurement of distance is possible enough even for a subject having the same periodical repetitive pattern.
JP6083981A 1981-04-22 1981-04-22 Distance measuring device Pending JPS57175206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6083981A JPS57175206A (en) 1981-04-22 1981-04-22 Distance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6083981A JPS57175206A (en) 1981-04-22 1981-04-22 Distance measuring device

Publications (1)

Publication Number Publication Date
JPS57175206A true JPS57175206A (en) 1982-10-28

Family

ID=13153926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6083981A Pending JPS57175206A (en) 1981-04-22 1981-04-22 Distance measuring device

Country Status (1)

Country Link
JP (1) JPS57175206A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016132950A1 (en) * 2015-02-20 2016-08-25 ソニー株式会社 Image capturing device and image capturing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016132950A1 (en) * 2015-02-20 2016-08-25 ソニー株式会社 Image capturing device and image capturing method
CN107211085A (en) * 2015-02-20 2017-09-26 索尼公司 Camera device and image capture method
JPWO2016132950A1 (en) * 2015-02-20 2017-11-30 ソニー株式会社 Imaging apparatus and imaging method
US20170359565A1 (en) * 2015-02-20 2017-12-14 Sony Corporation Image pickup device and image pickup method
CN107211085B (en) * 2015-02-20 2020-06-05 索尼公司 Image pickup apparatus and image pickup method

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