JPS57136110A - Object detector - Google Patents

Object detector

Info

Publication number
JPS57136110A
JPS57136110A JP2195881A JP2195881A JPS57136110A JP S57136110 A JPS57136110 A JP S57136110A JP 2195881 A JP2195881 A JP 2195881A JP 2195881 A JP2195881 A JP 2195881A JP S57136110 A JPS57136110 A JP S57136110A
Authority
JP
Japan
Prior art keywords
light receiving
light
elements
light flux
receiving member
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
JP2195881A
Other languages
Japanese (ja)
Inventor
Tomio Oguma
Tsutomu Mitsui
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP2195881A priority Critical patent/JPS57136110A/en
Publication of JPS57136110A publication Critical patent/JPS57136110A/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

Abstract

PURPOSE:To detect the position of object to be measured accurately in a wide range by arranging a light receiving element train for a reference light flux and a matrix-like element for receiving a comparison light flux. CONSTITUTION:Light fluxes are respectively focused on a light receiving element 12 comprising five light receiving elements A-E to receive a reference light flux on a belt-shaped reference optical axis 20 in the specified direction on a light receiving member 13 comprising elements arranged in a matrix of 5X5 to receive a comparison light flux 30 passing in a range from a distant position 21 to a close position 25 on the optical axis through lenses 14 and 15. Output currents from the row 0 of elements A-E of the light receiving member 12 and the rows 1-5 of the light receiving elements A-E of the light receiving member 13 are compared separately with comparator circuits 41-45 and the distance corresponding to the combination of the least difference is calculated with a distance converter 46 and displayed on an indicator 47. This enables the detection of object to be measured accurately in a wide range.
JP2195881A 1981-02-17 1981-02-17 Object detector Pending JPS57136110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2195881A JPS57136110A (en) 1981-02-17 1981-02-17 Object detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2195881A JPS57136110A (en) 1981-02-17 1981-02-17 Object detector

Publications (1)

Publication Number Publication Date
JPS57136110A true JPS57136110A (en) 1982-08-23

Family

ID=12069570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2195881A Pending JPS57136110A (en) 1981-02-17 1981-02-17 Object detector

Country Status (1)

Country Link
JP (1) JPS57136110A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848884A (en) * 1981-09-17 1983-03-22 Aisin Seiki Co Ltd Object detecting device
JPS6061611A (en) * 1983-09-14 1985-04-09 Mitsubishi Electric Corp Measuring apparatus for distance between cars
JPS6131981A (en) * 1984-07-25 1986-02-14 Sogo Keibi Hoshiyou Kk Fire origin detecting method
JPS61182516A (en) * 1985-02-09 1986-08-15 Canon Inc Measuring method of distance

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138825A (en) * 1974-03-29 1975-11-06
JPS54111371A (en) * 1978-02-21 1979-08-31 Nippon Hoso Kyokai <Nhk> Distance measuring method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138825A (en) * 1974-03-29 1975-11-06
JPS54111371A (en) * 1978-02-21 1979-08-31 Nippon Hoso Kyokai <Nhk> Distance measuring method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848884A (en) * 1981-09-17 1983-03-22 Aisin Seiki Co Ltd Object detecting device
JPS6061611A (en) * 1983-09-14 1985-04-09 Mitsubishi Electric Corp Measuring apparatus for distance between cars
JPH0372930B2 (en) * 1983-09-14 1991-11-20 Mitsubishi Electric Corp
JPS6131981A (en) * 1984-07-25 1986-02-14 Sogo Keibi Hoshiyou Kk Fire origin detecting method
JPS61182516A (en) * 1985-02-09 1986-08-15 Canon Inc Measuring method of distance
JPH0467607B2 (en) * 1985-02-09 1992-10-28 Canon Kk

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