JP5202025B2 - 撮像光学系及びそれを有する撮像装置 - Google Patents

撮像光学系及びそれを有する撮像装置 Download PDF

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Publication number
JP5202025B2
JP5202025B2 JP2008042755A JP2008042755A JP5202025B2 JP 5202025 B2 JP5202025 B2 JP 5202025B2 JP 2008042755 A JP2008042755 A JP 2008042755A JP 2008042755 A JP2008042755 A JP 2008042755A JP 5202025 B2 JP5202025 B2 JP 5202025B2
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JP
Japan
Prior art keywords
lens
cemented
aperture stop
diffractive optical
optical system
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 - Fee Related
Application number
JP2008042755A
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English (en)
Japanese (ja)
Other versions
JP2009198960A5 (enExample
JP2009198960A (ja
Inventor
薫 江口
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 JP2008042755A priority Critical patent/JP5202025B2/ja
Priority to US12/388,865 priority patent/US7738182B2/en
Publication of JP2009198960A publication Critical patent/JP2009198960A/ja
Publication of JP2009198960A5 publication Critical patent/JP2009198960A5/ja
Application granted granted Critical
Publication of JP5202025B2 publication Critical patent/JP5202025B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1435—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being negative
    • G02B15/143507—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being negative arranged -++
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
    • G02B15/177—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • G02B27/005—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for correction of secondary colour or higher-order chromatic aberrations
    • G02B27/0056—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for correction of secondary colour or higher-order chromatic aberrations by using a diffractive optical element
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4205—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant
    • G02B27/4211—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant correcting chromatic aberrations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • G02B5/189—Structurally combined with optical elements not having diffractive power
    • G02B5/1895—Structurally combined with optical elements not having diffractive power such optical elements having dioptric power

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
  • Studio Devices (AREA)
JP2008042755A 2008-02-25 2008-02-25 撮像光学系及びそれを有する撮像装置 Expired - Fee Related JP5202025B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008042755A JP5202025B2 (ja) 2008-02-25 2008-02-25 撮像光学系及びそれを有する撮像装置
US12/388,865 US7738182B2 (en) 2008-02-25 2009-02-19 Image pickup optical system and image pickup apparatus including the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008042755A JP5202025B2 (ja) 2008-02-25 2008-02-25 撮像光学系及びそれを有する撮像装置

Publications (3)

Publication Number Publication Date
JP2009198960A JP2009198960A (ja) 2009-09-03
JP2009198960A5 JP2009198960A5 (enExample) 2011-03-31
JP5202025B2 true JP5202025B2 (ja) 2013-06-05

Family

ID=40998041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008042755A Expired - Fee Related JP5202025B2 (ja) 2008-02-25 2008-02-25 撮像光学系及びそれを有する撮像装置

Country Status (2)

Country Link
US (1) US7738182B2 (enExample)
JP (1) JP5202025B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8780463B2 (en) 2010-06-24 2014-07-15 Ricoh Company, Ltd. Image-forming lens, and imaging apparatus and information device using the image-forming lens
EP3540495A1 (en) * 2010-10-28 2019-09-18 EndoChoice Innovation Center Ltd. Optical systems for multi-sensor endoscopes
JP2014035406A (ja) * 2012-08-08 2014-02-24 Nikon Corp ズームレンズ、光学装置、ズームレンズの製造方法
US9817320B2 (en) 2013-11-20 2017-11-14 Asml Netherlands B.V. Lithographic method and apparatus
JP6570239B2 (ja) * 2014-11-19 2019-09-04 キヤノン株式会社 光学系、及びそれを有する光学機器
JP6544971B2 (ja) * 2015-04-03 2019-07-17 株式会社タムロン 光学系及び撮像装置
CN107728296B (zh) * 2016-08-10 2022-03-04 光芒光学股份有限公司 光学镜头
CN110221417B (zh) * 2019-06-17 2024-06-18 深圳市永诺摄影器材股份有限公司 广角光学系统及光学设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0933801A (ja) 1995-07-17 1997-02-07 Canon Inc レトロフォーカス型レンズ
JP4323595B2 (ja) * 1998-11-10 2009-09-02 キヤノン株式会社 撮影光学系及びカメラ
JP4505910B2 (ja) 1999-12-08 2010-07-21 株式会社ニコン ズームレンズ及び該レンズを備える撮影装置
JP3619145B2 (ja) * 2000-11-17 2005-02-09 キヤノン株式会社 光学系及びそれを用いた光学機器
JP2005084971A (ja) 2003-09-09 2005-03-31 Kureo:Kk 振込明細通知システム及び振込明細の通知方法
JP2005106902A (ja) * 2003-09-29 2005-04-21 Canon Inc 投射レンズ及びそれを用いた色合成光学系

Also Published As

Publication number Publication date
US7738182B2 (en) 2010-06-15
US20090213472A1 (en) 2009-08-27
JP2009198960A (ja) 2009-09-03

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