JPH1184232A - 広角レンズ - Google Patents

広角レンズ

Info

Publication number
JPH1184232A
JPH1184232A JP9251452A JP25145297A JPH1184232A JP H1184232 A JPH1184232 A JP H1184232A JP 9251452 A JP9251452 A JP 9251452A JP 25145297 A JP25145297 A JP 25145297A JP H1184232 A JPH1184232 A JP H1184232A
Authority
JP
Japan
Prior art keywords
lens
group
negative
power
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
JP9251452A
Other languages
English (en)
Japanese (ja)
Other versions
JPH1184232A5 (enExample
Inventor
Katsuhiro Takada
勝啓 高田
Takanori Yamanashi
隆則 山梨
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP9251452A priority Critical patent/JPH1184232A/ja
Priority to US09/048,221 priority patent/US6075657A/en
Publication of JPH1184232A publication Critical patent/JPH1184232A/ja
Publication of JPH1184232A5 publication Critical patent/JPH1184232A5/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
    • G02B13/04—Reversed telephoto objectives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP9251452A 1997-09-02 1997-09-02 広角レンズ Pending JPH1184232A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9251452A JPH1184232A (ja) 1997-09-02 1997-09-02 広角レンズ
US09/048,221 US6075657A (en) 1997-09-02 1998-03-26 Wide-angle lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9251452A JPH1184232A (ja) 1997-09-02 1997-09-02 広角レンズ

Publications (2)

Publication Number Publication Date
JPH1184232A true JPH1184232A (ja) 1999-03-26
JPH1184232A5 JPH1184232A5 (enExample) 2005-05-19

Family

ID=17223045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9251452A Pending JPH1184232A (ja) 1997-09-02 1997-09-02 広角レンズ

Country Status (2)

Country Link
US (1) US6075657A (enExample)
JP (1) JPH1184232A (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002131636A (ja) * 2000-10-25 2002-05-09 Ricoh Opt Ind Co Ltd 投射用レンズ
JP2005316398A (ja) * 2004-03-31 2005-11-10 Nikon Corp 超広角レンズ、該超広角レンズを備えた撮影装置
US7002757B2 (en) 2001-09-26 2006-02-21 Fujinon Corporation Single-focus lens for electronic still cameras
WO2013118469A1 (ja) * 2012-02-06 2013-08-15 富士フイルム株式会社 超広角レンズおよびこれを用いた撮像装置
CN105807400A (zh) * 2016-05-23 2016-07-27 深圳市东正光学技术有限公司 单反相机超大光圈广角镜头
JP2022117775A (ja) * 2021-02-01 2022-08-12 株式会社リコー 単焦点レンズ、交換レンズ及び撮像装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4349553B2 (ja) * 2002-01-17 2009-10-21 フジノン株式会社 バックフォーカスの長い固定焦点の広角レンズ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826001B2 (ja) * 1975-06-30 1983-05-31 オリンパス光学工業株式会社 レトロフオ−カスガタチヨウコクカクレンズ
JPS5325430A (en) * 1976-08-20 1978-03-09 Nippon Chemical Ind Wide angle photographic lens
JPS5651709A (en) * 1979-10-03 1981-05-09 Minolta Camera Co Ltd Reverse telephoto type wide angle lens
JPH0820593B2 (ja) * 1986-12-15 1996-03-04 オリンパス光学工業株式会社 バツクフオ−カスの長い広角レンズ
JP2729851B2 (ja) * 1990-08-04 1998-03-18 富士写真光機株式会社 レトロフォーカス型広角レンズ

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002131636A (ja) * 2000-10-25 2002-05-09 Ricoh Opt Ind Co Ltd 投射用レンズ
US7002757B2 (en) 2001-09-26 2006-02-21 Fujinon Corporation Single-focus lens for electronic still cameras
JP2005316398A (ja) * 2004-03-31 2005-11-10 Nikon Corp 超広角レンズ、該超広角レンズを備えた撮影装置
WO2013118469A1 (ja) * 2012-02-06 2013-08-15 富士フイルム株式会社 超広角レンズおよびこれを用いた撮像装置
JP5642894B2 (ja) * 2012-02-06 2014-12-17 富士フイルム株式会社 超広角レンズおよびこれを用いた撮像装置
US9128271B2 (en) 2012-02-06 2015-09-08 Fujifilm Corporation Super wide angle lens and imaging apparatus using it
CN105807400A (zh) * 2016-05-23 2016-07-27 深圳市东正光学技术有限公司 单反相机超大光圈广角镜头
JP2022117775A (ja) * 2021-02-01 2022-08-12 株式会社リコー 単焦点レンズ、交換レンズ及び撮像装置

Also Published As

Publication number Publication date
US6075657A (en) 2000-06-13

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