JPS56165110A - Telephoto lens - Google Patents

Telephoto lens

Info

Publication number
JPS56165110A
JPS56165110A JP6869080A JP6869080A JPS56165110A JP S56165110 A JPS56165110 A JP S56165110A JP 6869080 A JP6869080 A JP 6869080A JP 6869080 A JP6869080 A JP 6869080A JP S56165110 A JPS56165110 A JP S56165110A
Authority
JP
Japan
Prior art keywords
lens group
lens
specifying
negative
positive
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
JP6869080A
Other languages
English (en)
Inventor
Nozomi Kitagishi
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 JP6869080A priority Critical patent/JPS56165110A/ja
Publication of JPS56165110A publication Critical patent/JPS56165110A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
JP6869080A 1980-05-23 1980-05-23 Telephoto lens Pending JPS56165110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6869080A JPS56165110A (en) 1980-05-23 1980-05-23 Telephoto lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6869080A JPS56165110A (en) 1980-05-23 1980-05-23 Telephoto lens

Publications (1)

Publication Number Publication Date
JPS56165110A true JPS56165110A (en) 1981-12-18

Family

ID=13380995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6869080A Pending JPS56165110A (en) 1980-05-23 1980-05-23 Telephoto lens

Country Status (1)

Country Link
JP (1) JPS56165110A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917519A (ja) * 1982-07-21 1984-01-28 Canon Inc 大口径の望遠レンズ
JPS6028612A (ja) * 1983-07-27 1985-02-13 Nippon Kogaku Kk <Nikon> 大口径比望遠レンズ
US4610514A (en) * 1982-10-07 1986-09-09 Minolta Camera Kabushiki Kaisha Telephoto lens system
US5325234A (en) * 1992-04-16 1994-06-28 Asahi Kogaku Kogyo Kabushiki Kaisha Telephoto lens system
JPH11295590A (ja) * 1998-04-14 1999-10-29 Canon Inc 回折光学素子を有した光学系

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917519A (ja) * 1982-07-21 1984-01-28 Canon Inc 大口径の望遠レンズ
US4610514A (en) * 1982-10-07 1986-09-09 Minolta Camera Kabushiki Kaisha Telephoto lens system
JPS6028612A (ja) * 1983-07-27 1985-02-13 Nippon Kogaku Kk <Nikon> 大口径比望遠レンズ
JPH0412443B2 (ja) * 1983-07-27 1992-03-04 Nippon Kogaku Kk
US5325234A (en) * 1992-04-16 1994-06-28 Asahi Kogaku Kogyo Kabushiki Kaisha Telephoto lens system
DE4312448B4 (de) * 1992-04-16 2006-02-02 Pentax Corp. Teleobjektiv
JPH11295590A (ja) * 1998-04-14 1999-10-29 Canon Inc 回折光学素子を有した光学系

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