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JPS55143517A - Inverse telephoto type wide angle photographic lens - Google Patents

Inverse telephoto type wide angle photographic lens

Info

Publication number
JPS55143517A
JPS55143517A JP5197779A JP5197779A JPS55143517A JP S55143517 A JPS55143517 A JP S55143517A JP 5197779 A JP5197779 A JP 5197779A JP 5197779 A JP5197779 A JP 5197779A JP S55143517 A JPS55143517 A JP S55143517A
Authority
JP
Japan
Prior art keywords
lens
positive
focusing
wide angle
photographic lens
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
JP5197779A
Other languages
Japanese (ja)
Inventor
Yukio Mori
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 JP5197779A priority Critical patent/JPS55143517A/en
Priority to DE19792946182 priority patent/DE2946182A1/en
Priority to US06/094,725 priority patent/US4311367A/en
Publication of JPS55143517A publication Critical patent/JPS55143517A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)

Abstract

PURPOSE: To enable focusing with simple construction by dividing the positive lens of the final part of the rear lens group to plural lens components, making at least one thereof movable and performing focusing by moving this.
CONSTITUTION: The front group of the lens is divergent and is a negative meniscus lens L1 and the rear group is convergent and consists of a positive lens L2, stop S, negative lens L3, positive meniscus lens L4 whose convex face is directed to the image side and two positive lenses L51, L52 subsequently from the object side. In this way, the positive lens of the last side is divided to the two positive lenses L51, L52. In this example, both the positive lenses are integrally movable and focusing is done by the movement of this lens. In this way, the lens moving for the purpose of focusing is small and therefore the construction of the lens-barrel may be constituted simple and to a small size. Further, the detect that astigmatism fluctuates along with the change in photographing magnification is decreased.
COPYRIGHT: (C)1980,JPO&Japio
JP5197779A 1978-11-15 1979-04-26 Inverse telephoto type wide angle photographic lens Pending JPS55143517A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5197779A JPS55143517A (en) 1979-04-26 1979-04-26 Inverse telephoto type wide angle photographic lens
DE19792946182 DE2946182A1 (en) 1978-11-15 1979-11-15 PHOTOGRAPHIC WIDE-ANGLE LENS
US06/094,725 US4311367A (en) 1978-11-15 1979-11-15 Wide angle photographic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5197779A JPS55143517A (en) 1979-04-26 1979-04-26 Inverse telephoto type wide angle photographic lens

Publications (1)

Publication Number Publication Date
JPS55143517A true JPS55143517A (en) 1980-11-08

Family

ID=12901917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5197779A Pending JPS55143517A (en) 1978-11-15 1979-04-26 Inverse telephoto type wide angle photographic lens

Country Status (1)

Country Link
JP (1) JPS55143517A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6276312U (en) * 1986-11-06 1987-05-15
JP2000258685A (en) * 1999-03-10 2000-09-22 Canon Inc Photographing optical system
US6236521B1 (en) 1998-02-09 2001-05-22 Canon Kabushiki Kaisha Objective lens and image pickup device using the same
JP2010072622A (en) * 2008-08-21 2010-04-02 Fujinon Corp Imaging lens and imaging apparatus
JP2010107531A (en) * 2008-10-28 2010-05-13 Fujinon Corp Imaging lens and imaging apparatus using the imaging lens
JP2011237750A (en) * 2010-04-12 2011-11-24 Fujifilm Corp Imaging lens and imaging device
JP2011242520A (en) * 2010-05-17 2011-12-01 Olympus Imaging Corp Imaging optical system and imaging apparatus comprising the same
WO2012086199A1 (en) * 2010-12-22 2012-06-28 富士フイルム株式会社 Image pickup lens and image pickup device
US8390943B2 (en) 2010-09-24 2013-03-05 Olympus Corporation Optical system, and imaging apparatus incorporating the same
JP2013130820A (en) * 2011-12-22 2013-07-04 Olympus Imaging Corp Rear focus lens system and imaging apparatus including the same
JP2014016574A (en) * 2012-07-11 2014-01-30 Ricoh Co Ltd Imaging optical system, camera device, and portable information terminal device
JP2017037342A (en) * 2016-10-27 2017-02-16 オリンパス株式会社 Rear-focus lens system and image capturing device having the same
CN108254895A (en) * 2017-12-29 2018-07-06 瑞声科技(新加坡)有限公司 Camera optical camera lens
JP6425362B1 (en) * 2017-12-29 2018-11-21 エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． Imaging optical lens

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6276312U (en) * 1986-11-06 1987-05-15
US6236521B1 (en) 1998-02-09 2001-05-22 Canon Kabushiki Kaisha Objective lens and image pickup device using the same
JP2000258685A (en) * 1999-03-10 2000-09-22 Canon Inc Photographing optical system
JP2010072622A (en) * 2008-08-21 2010-04-02 Fujinon Corp Imaging lens and imaging apparatus
JP2010107531A (en) * 2008-10-28 2010-05-13 Fujinon Corp Imaging lens and imaging apparatus using the imaging lens
JP2011237750A (en) * 2010-04-12 2011-11-24 Fujifilm Corp Imaging lens and imaging device
JP2011242520A (en) * 2010-05-17 2011-12-01 Olympus Imaging Corp Imaging optical system and imaging apparatus comprising the same
US8390943B2 (en) 2010-09-24 2013-03-05 Olympus Corporation Optical system, and imaging apparatus incorporating the same
WO2012086199A1 (en) * 2010-12-22 2012-06-28 富士フイルム株式会社 Image pickup lens and image pickup device
JPWO2012086199A1 (en) * 2010-12-22 2014-05-22 富士フイルム株式会社 Imaging lens and imaging apparatus
US9176305B2 (en) 2010-12-22 2015-11-03 Fujifilm Corporation Imaging lens and imaging apparatus
JP2013130820A (en) * 2011-12-22 2013-07-04 Olympus Imaging Corp Rear focus lens system and imaging apparatus including the same
JP2014016574A (en) * 2012-07-11 2014-01-30 Ricoh Co Ltd Imaging optical system, camera device, and portable information terminal device
JP2017037342A (en) * 2016-10-27 2017-02-16 オリンパス株式会社 Rear-focus lens system and image capturing device having the same
CN108254895A (en) * 2017-12-29 2018-07-06 瑞声科技(新加坡)有限公司 Camera optical camera lens
JP6425362B1 (en) * 2017-12-29 2018-11-21 エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． Imaging optical lens
JP2019120915A (en) * 2017-12-29 2019-07-22 エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． Image capturing optical lens
CN108254895B (en) * 2017-12-29 2020-06-16 瑞声光学解决方案私人有限公司 Image pickup optical lens

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