JP6851775B2 - 回折光学素子およびそれを有する光学系、撮像装置 - Google Patents

回折光学素子およびそれを有する光学系、撮像装置 Download PDF

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Publication number
JP6851775B2
JP6851775B2 JP2016213545A JP2016213545A JP6851775B2 JP 6851775 B2 JP6851775 B2 JP 6851775B2 JP 2016213545 A JP2016213545 A JP 2016213545A JP 2016213545 A JP2016213545 A JP 2016213545A JP 6851775 B2 JP6851775 B2 JP 6851775B2
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Japan
Prior art keywords
lens
diffraction grating
optical system
optical
diffraction
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English (en)
Japanese (ja)
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JP2018072623A5 (enExample
JP2018072623A (ja
Inventor
幹生 小林
幹生 小林
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Canon Inc
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2016213545A priority Critical patent/JP6851775B2/ja
Priority to US15/730,513 priority patent/US11249321B2/en
Publication of JP2018072623A publication Critical patent/JP2018072623A/ja
Publication of JP2018072623A5 publication Critical patent/JP2018072623A5/ja
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    • 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
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/003—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having two 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
    • G02B27/0037—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 with diffracting elements
    • 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
    • G02B15/163—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 first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
    • G02B15/167—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 first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
    • G02B15/17—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 first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +--
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lenses (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
JP2016213545A 2016-10-31 2016-10-31 回折光学素子およびそれを有する光学系、撮像装置 Active JP6851775B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016213545A JP6851775B2 (ja) 2016-10-31 2016-10-31 回折光学素子およびそれを有する光学系、撮像装置
US15/730,513 US11249321B2 (en) 2016-10-31 2017-10-11 Diffractive optical element, optical system having the same, and imaging apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016213545A JP6851775B2 (ja) 2016-10-31 2016-10-31 回折光学素子およびそれを有する光学系、撮像装置

Publications (3)

Publication Number Publication Date
JP2018072623A JP2018072623A (ja) 2018-05-10
JP2018072623A5 JP2018072623A5 (enExample) 2019-12-12
JP6851775B2 true JP6851775B2 (ja) 2021-03-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016213545A Active JP6851775B2 (ja) 2016-10-31 2016-10-31 回折光学素子およびそれを有する光学系、撮像装置

Country Status (2)

Country Link
US (1) US11249321B2 (enExample)
JP (1) JP6851775B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109031592B (zh) * 2018-07-26 2020-12-08 华为技术有限公司 摄像镜头、摄像模组及终端
JP7043439B2 (ja) 2019-02-12 2022-03-29 富士フイルム株式会社 撮像レンズおよび撮像装置
JP2024106462A (ja) * 2023-01-27 2024-08-08 キヤノン株式会社 回折光学素子、光学系、撮像装置、および表示装置
JP2024106445A (ja) * 2023-01-27 2024-08-08 キヤノン株式会社 回折光学素子、光学系、撮像装置、および表示装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000321429A (ja) * 1999-05-14 2000-11-24 Minolta Co Ltd 偏光分離素子及び投射型表示装置
JP3530776B2 (ja) * 1999-07-28 2004-05-24 キヤノン株式会社 回折光学素子及びそれを用いた光学系
US6473232B2 (en) * 2000-03-08 2002-10-29 Canon Kabushiki Kaisha Optical system having a diffractive optical element, and optical apparatus
JP4387855B2 (ja) * 2004-04-01 2009-12-24 キヤノン株式会社 光学系
WO2007055390A1 (ja) * 2005-11-10 2007-05-18 Teijin Chemicals Ltd. 光学素子および色収差補正レンズ
JP4995525B2 (ja) 2006-09-25 2012-08-08 株式会社 ニコンビジョン 色消しレンズ系、光学装置
CN1936645A (zh) * 2006-10-19 2007-03-28 南开大学 用双层谐衍射元件的红外光学系统
JP2008170594A (ja) 2007-01-10 2008-07-24 Nikon Corp プロジェクタ光学系、プロジェクタ、及び、投影方法
JP2011022255A (ja) * 2009-07-14 2011-02-03 Canon Inc 回折光学素子及びそれを有する光学系
JP2011170028A (ja) 2010-02-17 2011-09-01 Canon Inc 回折光学素子及びそれを有する撮像光学系
JP5683172B2 (ja) * 2010-08-30 2015-03-11 キヤノン株式会社 回折光学素子及び光学系
JP5787508B2 (ja) * 2010-11-11 2015-09-30 キヤノン株式会社 回折光学素子及び光学系
JP5587225B2 (ja) 2011-03-09 2014-09-10 キヤノン株式会社 撮影光学系及びそれを有する撮像装置
JP2013064858A (ja) * 2011-09-16 2013-04-11 Canon Inc 光学系および光学素子
JP2014145871A (ja) * 2013-01-29 2014-08-14 Canon Inc 回折光学素子を用いた撮像光学系
JP6304954B2 (ja) * 2013-06-28 2018-04-04 キヤノン株式会社 回折光学素子を用いた光学系および光学機器
JP2015232662A (ja) * 2014-06-11 2015-12-24 キヤノン株式会社 光学素子及びそれを用いた撮影光学系
JP2016173439A (ja) * 2015-03-17 2016-09-29 キヤノン株式会社 望遠レンズ

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Publication number Publication date
US20180120582A1 (en) 2018-05-03
US11249321B2 (en) 2022-02-15
JP2018072623A (ja) 2018-05-10

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