JPH0339288B2 - - Google Patents

Info

Publication number
JPH0339288B2
JPH0339288B2 JP6864383A JP6864383A JPH0339288B2 JP H0339288 B2 JPH0339288 B2 JP H0339288B2 JP 6864383 A JP6864383 A JP 6864383A JP 6864383 A JP6864383 A JP 6864383A JP H0339288 B2 JPH0339288 B2 JP H0339288B2
Authority
JP
Japan
Prior art keywords
light
distance
distance measurement
lens
areas
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.)
Expired
Application number
JP6864383A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59193407A (ja
Inventor
Susumu Matsumura
Takashi Kawabata
Juichi Sato
Tokuichi Tsunekawa
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 JP6864383A priority Critical patent/JPS59193407A/ja
Priority to US06/601,054 priority patent/US4575211A/en
Publication of JPS59193407A publication Critical patent/JPS59193407A/ja
Publication of JPH0339288B2 publication Critical patent/JPH0339288B2/ja
Granted 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
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Measurement Of Optical Distance (AREA)
JP6864383A 1983-04-18 1983-04-18 測距装置 Granted JPS59193407A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6864383A JPS59193407A (ja) 1983-04-18 1983-04-18 測距装置
US06/601,054 US4575211A (en) 1983-04-18 1984-04-16 Distance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6864383A JPS59193407A (ja) 1983-04-18 1983-04-18 測距装置

Publications (2)

Publication Number Publication Date
JPS59193407A JPS59193407A (ja) 1984-11-02
JPH0339288B2 true JPH0339288B2 (fr) 1991-06-13

Family

ID=13379604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6864383A Granted JPS59193407A (ja) 1983-04-18 1983-04-18 測距装置

Country Status (1)

Country Link
JP (1) JPS59193407A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175579A (en) * 1986-09-22 1992-12-29 Minolta Camera Kabushiki Kaisha Automatic focus detection system
JPS63199310A (ja) * 1987-02-16 1988-08-17 Mitaka Koki Kk 非接触多点自動焦点位置決め方法及び装置
JP4589169B2 (ja) 2005-04-28 2010-12-01 シャープ株式会社 マルチビーム光学式測距センサおよびそれを備えた自走式掃除機、エアコンディショナ
JP5187364B2 (ja) 2010-08-24 2013-04-24 カシオ計算機株式会社 回折光学素子、並びに測距装置及び測距方法
US10704904B2 (en) * 2018-03-20 2020-07-07 Pixart Imaging Inc. Distance detection device

Also Published As

Publication number Publication date
JPS59193407A (ja) 1984-11-02

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