JPS59193307A - 焦点調節装置 - Google Patents

焦点調節装置

Info

Publication number
JPS59193307A
JPS59193307A JP6865083A JP6865083A JPS59193307A JP S59193307 A JPS59193307 A JP S59193307A JP 6865083 A JP6865083 A JP 6865083A JP 6865083 A JP6865083 A JP 6865083A JP S59193307 A JPS59193307 A JP S59193307A
Authority
JP
Japan
Prior art keywords
light
distance
points
line
distance measurement
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.)
Granted
Application number
JP6865083A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0517484B2 (enrdf_load_stackoverflow
Inventor
Takashi Kawabata
隆 川端
Susumu Matsumura
進 松村
Tokuichi Tsunekawa
恒川　十九一
Yuichi Sato
雄一 佐藤
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 JP6865083A priority Critical patent/JPS59193307A/ja
Priority to US06/601,054 priority patent/US4575211A/en
Publication of JPS59193307A publication Critical patent/JPS59193307A/ja
Publication of JPH0517484B2 publication Critical patent/JPH0517484B2/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)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Measurement Of Optical Distance (AREA)
  • Focusing (AREA)
JP6865083A 1983-04-18 1983-04-18 焦点調節装置 Granted JPS59193307A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6865083A JPS59193307A (ja) 1983-04-18 1983-04-18 焦点調節装置
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
JP6865083A JPS59193307A (ja) 1983-04-18 1983-04-18 焦点調節装置

Publications (2)

Publication Number Publication Date
JPS59193307A true JPS59193307A (ja) 1984-11-01
JPH0517484B2 JPH0517484B2 (enrdf_load_stackoverflow) 1993-03-09

Family

ID=13379784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6865083A Granted JPS59193307A (ja) 1983-04-18 1983-04-18 焦点調節装置

Country Status (1)

Country Link
JP (1) JPS59193307A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63266435A (ja) * 1987-04-24 1988-11-02 Canon Inc 信号形成装置
US4800409A (en) * 1986-04-28 1989-01-24 Minolta Camera Kabushiki Kaisha Control device for use in a camera having an objective lens
US6836618B2 (en) 2000-01-31 2004-12-28 Canon Kabushiki Kaisha Distance measuring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800409A (en) * 1986-04-28 1989-01-24 Minolta Camera Kabushiki Kaisha Control device for use in a camera having an objective lens
JPS63266435A (ja) * 1987-04-24 1988-11-02 Canon Inc 信号形成装置
US6836618B2 (en) 2000-01-31 2004-12-28 Canon Kabushiki Kaisha Distance measuring device

Also Published As

Publication number Publication date
JPH0517484B2 (enrdf_load_stackoverflow) 1993-03-09

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