JPS57169608A - Distance measuring method - Google Patents

Distance measuring method

Info

Publication number
JPS57169608A
JPS57169608A JP5433981A JP5433981A JPS57169608A JP S57169608 A JPS57169608 A JP S57169608A JP 5433981 A JP5433981 A JP 5433981A JP 5433981 A JP5433981 A JP 5433981A JP S57169608 A JPS57169608 A JP S57169608A
Authority
JP
Japan
Prior art keywords
lenses
deviation
optical axes
extents
distance measuring
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
JP5433981A
Other languages
Japanese (ja)
Inventor
Haruo Koyanagi
Hiroshi Kuriyama
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP5433981A priority Critical patent/JPS57169608A/en
Publication of JPS57169608A publication Critical patent/JPS57169608A/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

Abstract

PURPOSE:To perform distance measurement easily by finding the deviation of an object from the optical axes of the 1st and 2nd optical systems. CONSTITUTION:The optical axes of lenses 1 and 2 as the 1st and 2nd optical systems are made to intersect each other, and linear photosensors 3 and 4 where an image of an object 5 is formed are arranged behind the 1st and 2nd lenses 1 and 2. The photodetecting elements of the linear photosensors 3 and 4 output voltage signals which correspond to their quantities of photodetected light. From the outputs of those linear photosensors 3 and 4, the 1st and 2nd extents of deviation of the image of the object 5 from the optical axes of the lenses 1 and 2 are detected. On the basis of those 1st and 2nd extents of deviation, a distance to the object 5 is found.
JP5433981A 1981-04-13 1981-04-13 Distance measuring method Pending JPS57169608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5433981A JPS57169608A (en) 1981-04-13 1981-04-13 Distance measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5433981A JPS57169608A (en) 1981-04-13 1981-04-13 Distance measuring method

Publications (1)

Publication Number Publication Date
JPS57169608A true JPS57169608A (en) 1982-10-19

Family

ID=12967842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5433981A Pending JPS57169608A (en) 1981-04-13 1981-04-13 Distance measuring method

Country Status (1)

Country Link
JP (1) JPS57169608A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62162912A (en) * 1986-01-13 1987-07-18 Sony Corp Height measuring instrument for material body
US4979816A (en) * 1987-06-22 1990-12-25 White Steven J Range sensing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62162912A (en) * 1986-01-13 1987-07-18 Sony Corp Height measuring instrument for material body
US4979816A (en) * 1987-06-22 1990-12-25 White Steven J Range sensing system

Similar Documents

Publication Publication Date Title
JPS53110823A (en) Optical information processor
JPS57128810A (en) Distance measuring device
CA2211009A1 (en) Methods and apparatus for counting objects
JPS57157118A (en) Photoelectric type displacement detecting device
ATE59902T1 (en) OPTOELECTRONIC POSITION SENSING.
JPS57177115A (en) Projection lens device
JPS57169608A (en) Distance measuring method
JPS5697325A (en) Focus detecting method of camera
JPS5376047A (en) Light source of optical reader
GB1525049A (en) Displacement-indicating apparatus
JPS6432119A (en) Absolute encoder
JPS6474414A (en) Optical displacement detector
DE3382596D1 (en) THREE DIMENSIONAL DISTANCE MEASURING DEVICE.
EP0209340A3 (en) Datum sensing using optical grating
JPS5697821A (en) Optical distance sensor
JPS649315A (en) Optical measuring apparatus
JPS57141560A (en) Detector for travelling object
JPS5764105A (en) Location detector
SU534674A1 (en) Device for measuring changes in the refractive index of transparent media
SU1021944A1 (en) Device for measuring object displacement non-linearity
EP0145326A3 (en) A distance measuring arrangement
JPS55119022A (en) Light detector and using method thereof
JPS5395061A (en) Distance detecting method
GB1321446A (en) Symmetrical copying lens system
JPS53143317A (en) System for processing optical information