JPS55126221A - Focus detecting optical device - Google Patents

Focus detecting optical device

Info

Publication number
JPS55126221A
JPS55126221A JP3358679A JP3358679A JPS55126221A JP S55126221 A JPS55126221 A JP S55126221A JP 3358679 A JP3358679 A JP 3358679A JP 3358679 A JP3358679 A JP 3358679A JP S55126221 A JPS55126221 A JP S55126221A
Authority
JP
Japan
Prior art keywords
photo detecting
luminous fluxes
vignetted
objective lens
detecting surfaces
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
JP3358679A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6154201B2 (OSRAM
Inventor
Toru Fukuhara
Takeshi Utagawa
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.)
Nikon Corp
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
Nippon Kogaku KK
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 Nippon Chemical Industrial Co Ltd, Nippon Kogaku KK filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP3358679A priority Critical patent/JPS55126221A/ja
Priority to US06/131,494 priority patent/US4322616A/en
Priority to DE19803011064 priority patent/DE3011064A1/de
Publication of JPS55126221A publication Critical patent/JPS55126221A/ja
Publication of JPS6154201B2 publication Critical patent/JPS6154201B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP3358679A 1979-03-22 1979-03-22 Focus detecting optical device Granted JPS55126221A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP3358679A JPS55126221A (en) 1979-03-22 1979-03-22 Focus detecting optical device
US06/131,494 US4322616A (en) 1979-03-22 1980-03-18 Focus detecting device with shielding
DE19803011064 DE3011064A1 (de) 1979-03-22 1980-03-21 Einrichtung zur feststellung der scharfeinstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3358679A JPS55126221A (en) 1979-03-22 1979-03-22 Focus detecting optical device

Publications (2)

Publication Number Publication Date
JPS55126221A true JPS55126221A (en) 1980-09-29
JPS6154201B2 JPS6154201B2 (OSRAM) 1986-11-21

Family

ID=12390612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3358679A Granted JPS55126221A (en) 1979-03-22 1979-03-22 Focus detecting optical device

Country Status (1)

Country Link
JP (1) JPS55126221A (OSRAM)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781110A (en) * 1971-11-15 1973-12-25 Leitz Ernst Gmbh Optical range finding system
JPS5267322A (en) * 1975-12-02 1977-06-03 Masayoshi Yoshimura Focusing device
JPS5295221A (en) * 1976-02-04 1977-08-10 Minolta Camera Co Ltd Detector for focusing
US4047022A (en) * 1976-01-13 1977-09-06 Ernst Leitz Gmbh Auto focus with spatial filtering and pairwise interrogation of photoelectric diodes
DE2634655A1 (de) * 1976-08-02 1978-02-09 Leitz Ernst Gmbh Vorrichtung zur fokussierung einer reflexkamera

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781110A (en) * 1971-11-15 1973-12-25 Leitz Ernst Gmbh Optical range finding system
JPS5267322A (en) * 1975-12-02 1977-06-03 Masayoshi Yoshimura Focusing device
US4047022A (en) * 1976-01-13 1977-09-06 Ernst Leitz Gmbh Auto focus with spatial filtering and pairwise interrogation of photoelectric diodes
JPS5295221A (en) * 1976-02-04 1977-08-10 Minolta Camera Co Ltd Detector for focusing
DE2634655A1 (de) * 1976-08-02 1978-02-09 Leitz Ernst Gmbh Vorrichtung zur fokussierung einer reflexkamera

Also Published As

Publication number Publication date
JPS6154201B2 (OSRAM) 1986-11-21

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