JPH0141963B2 - - Google Patents

Info

Publication number
JPH0141963B2
JPH0141963B2 JP56200327A JP20032781A JPH0141963B2 JP H0141963 B2 JPH0141963 B2 JP H0141963B2 JP 56200327 A JP56200327 A JP 56200327A JP 20032781 A JP20032781 A JP 20032781A JP H0141963 B2 JPH0141963 B2 JP H0141963B2
Authority
JP
Japan
Prior art keywords
light
optical system
light receiving
receiving optical
distance
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
JP56200327A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58100809A (ja
Inventor
Takashi Suzuki
Susumu Matsumura
Keiji Ootaka
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 JP20032781A priority Critical patent/JPS58100809A/ja
Publication of JPS58100809A publication Critical patent/JPS58100809A/ja
Publication of JPH0141963B2 publication Critical patent/JPH0141963B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP20032781A 1981-12-12 1981-12-12 合焦検出用光学系 Granted JPS58100809A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20032781A JPS58100809A (ja) 1981-12-12 1981-12-12 合焦検出用光学系

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20032781A JPS58100809A (ja) 1981-12-12 1981-12-12 合焦検出用光学系

Publications (2)

Publication Number Publication Date
JPS58100809A JPS58100809A (ja) 1983-06-15
JPH0141963B2 true JPH0141963B2 (zh) 1989-09-08

Family

ID=16422447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20032781A Granted JPS58100809A (ja) 1981-12-12 1981-12-12 合焦検出用光学系

Country Status (1)

Country Link
JP (1) JPS58100809A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0250114A (ja) * 1988-08-12 1990-02-20 Hitachi Ltd 自動合焦装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029330A (zh) * 1973-07-03 1975-03-25
JPS52138924A (en) * 1976-05-15 1977-11-19 Konishiroku Photo Ind Co Ltd Focal detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029330A (zh) * 1973-07-03 1975-03-25
JPS52138924A (en) * 1976-05-15 1977-11-19 Konishiroku Photo Ind Co Ltd Focal detector

Also Published As

Publication number Publication date
JPS58100809A (ja) 1983-06-15

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