CN114859531A - 变焦镜头和摄像设备 - Google Patents

变焦镜头和摄像设备 Download PDF

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Publication number
CN114859531A
CN114859531A CN202210106988.4A CN202210106988A CN114859531A CN 114859531 A CN114859531 A CN 114859531A CN 202210106988 A CN202210106988 A CN 202210106988A CN 114859531 A CN114859531 A CN 114859531A
Authority
CN
China
Prior art keywords
lens unit
subunit
refractive power
lens
zoom 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
CN202210106988.4A
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English (en)
Chinese (zh)
Inventor
后藤和史
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
Publication of CN114859531A publication Critical patent/CN114859531A/zh
Pending legal-status Critical Current

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    • 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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145125—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 five groups only the first group being positive 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
    • G02B15/144—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 four groups only
    • G02B15/1441—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 four groups only the first group being positive
    • G02B15/144109—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 four groups only the first group being positive 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
    • G02B15/144—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 four groups only
    • G02B15/1441—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 four groups only the first group being positive
    • 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
    • G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
    • 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
    • G02B15/144—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 four groups only
    • G02B15/1441—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 four groups only the first group being positive
    • G02B15/144113—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 four groups only the first group being positive 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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • 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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145117—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 five groups only the first group being positive 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
    • G02B15/146—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 more than five groups
    • G02B15/1461—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 more than five groups the first group being positive
    • 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
    • G02B15/22—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 movable lens means specially adapted for focusing at close distances
    • G02B15/24—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 movable lens means specially adapted for focusing at close distances having a front fixed lens or lens group and two movable lenses or lens groups in front of a fixed lens or lens group

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
CN202210106988.4A 2021-02-03 2022-01-28 变焦镜头和摄像设备 Pending CN114859531A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021015921A JP7642387B2 (ja) 2021-02-03 2021-02-03 ズームレンズ及び撮像装置
JP2021-015921 2021-02-03

Publications (1)

Publication Number Publication Date
CN114859531A true CN114859531A (zh) 2022-08-05

Family

ID=80119079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210106988.4A Pending CN114859531A (zh) 2021-02-03 2022-01-28 变焦镜头和摄像设备

Country Status (4)

Country Link
US (1) US11899191B2 (https=)
EP (1) EP4040211B1 (https=)
JP (1) JP7642387B2 (https=)
CN (1) CN114859531A (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113589503B (zh) * 2021-07-12 2022-05-20 浙江大华技术股份有限公司 一种镜头
CN119156566A (zh) * 2022-04-08 2024-12-17 玻璃成像公司 具有可移动非对称透镜的成像系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130070114A1 (en) * 2011-09-21 2013-03-21 Konica Minolta Advanced Layers, Inc. Inner-Focus Zoom Lens System
CN104583835A (zh) * 2012-06-22 2015-04-29 株式会社腾龙 变焦镜头以及具备这种变焦镜头的摄像装置
JP2016009122A (ja) * 2014-06-25 2016-01-18 株式会社シグマ インナーフォーカシングタイプのズームレンズ
US20190196143A1 (en) * 2017-12-21 2019-06-27 Canon Kabushiki Kaisha Zoom lens and image pickup apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2526892B2 (ja) * 1987-03-26 1996-08-21 株式会社ニコン ズ−ムレンズ
JP4405128B2 (ja) 2002-01-29 2010-01-27 フジノン株式会社 撮像レンズおよび撮像装置
JP2004309761A (ja) 2003-04-07 2004-11-04 Fuji Photo Optical Co Ltd 広角系ズームレンズ
US8149519B2 (en) 2010-07-26 2012-04-03 Panavision International, L.P. High-speed zoom lens
JP6477706B2 (ja) 2014-07-30 2019-03-06 株式会社ニコン 変倍光学系、光学装置
JP6485302B2 (ja) 2015-09-16 2019-03-20 コニカミノルタ株式会社 変倍機能を有する投射レンズ及びプロジェクター
JP2017122861A (ja) 2016-01-08 2017-07-13 パナソニックＩｐマネジメント株式会社 レンズ系、交換レンズ装置及びカメラシステム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130070114A1 (en) * 2011-09-21 2013-03-21 Konica Minolta Advanced Layers, Inc. Inner-Focus Zoom Lens System
CN104583835A (zh) * 2012-06-22 2015-04-29 株式会社腾龙 变焦镜头以及具备这种变焦镜头的摄像装置
JP2016009122A (ja) * 2014-06-25 2016-01-18 株式会社シグマ インナーフォーカシングタイプのズームレンズ
US20190196143A1 (en) * 2017-12-21 2019-06-27 Canon Kabushiki Kaisha Zoom lens and image pickup apparatus

Also Published As

Publication number Publication date
EP4040211B1 (en) 2024-12-04
EP4040211A1 (en) 2022-08-10
JP2022119007A (ja) 2022-08-16
US20220244513A1 (en) 2022-08-04
JP7642387B2 (ja) 2025-03-10
US11899191B2 (en) 2024-02-13

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