JP7826010B2 - 光学系及びそれを有する撮像装置 - Google Patents

光学系及びそれを有する撮像装置

Info

Publication number
JP7826010B2
JP7826010B2 JP2022000014A JP2022000014A JP7826010B2 JP 7826010 B2 JP7826010 B2 JP 7826010B2 JP 2022000014 A JP2022000014 A JP 2022000014A JP 2022000014 A JP2022000014 A JP 2022000014A JP 7826010 B2 JP7826010 B2 JP 7826010B2
Authority
JP
Japan
Prior art keywords
lens
lens group
optical system
positive
refractive power
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.)
Active
Application number
JP2022000014A
Other languages
English (en)
Japanese (ja)
Other versions
JP2023099387A (ja
JP2023099387A5 (https=
Inventor
俊二 岩本
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 JP2022000014A priority Critical patent/JP7826010B2/ja
Priority to US18/148,737 priority patent/US12386161B2/en
Publication of JP2023099387A publication Critical patent/JP2023099387A/ja
Publication of JP2023099387A5 publication Critical patent/JP2023099387A5/ja
Priority to US19/268,330 priority patent/US20250341708A1/en
Application granted granted Critical
Publication of JP7826010B2 publication Critical patent/JP7826010B2/ja
Active 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
    • G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
    • 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
    • G02B15/145113—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
    • G02B15/145—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
    • G02B15/145109—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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • 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
    • G02B13/0045—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 five or more lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP2022000014A 2022-01-01 2022-01-01 光学系及びそれを有する撮像装置 Active JP7826010B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2022000014A JP7826010B2 (ja) 2022-01-01 2022-01-01 光学系及びそれを有する撮像装置
US18/148,737 US12386161B2 (en) 2022-01-01 2022-12-30 Optical system and image pickup apparatus having the same including five lens units of +−++− or +−−+− refractive powers
US19/268,330 US20250341708A1 (en) 2022-01-01 2025-07-14 Optical system and image pickup apparatus having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022000014A JP7826010B2 (ja) 2022-01-01 2022-01-01 光学系及びそれを有する撮像装置

Publications (3)

Publication Number Publication Date
JP2023099387A JP2023099387A (ja) 2023-07-13
JP2023099387A5 JP2023099387A5 (https=) 2025-01-06
JP7826010B2 true JP7826010B2 (ja) 2026-03-09

Family

ID=86992712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022000014A Active JP7826010B2 (ja) 2022-01-01 2022-01-01 光学系及びそれを有する撮像装置

Country Status (2)

Country Link
US (2) US12386161B2 (https=)
JP (1) JP7826010B2 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7805830B2 (ja) * 2022-03-17 2026-01-26 キヤノン株式会社 光学系及びそれを備える撮像装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014142601A (ja) 2012-12-27 2014-08-07 Panasonic Corp インナーフォーカスレンズ系、交換レンズ装置及びカメラシステム
JP2021113905A (ja) 2020-01-20 2021-08-05 キヤノン株式会社 光学系およびそれを有する撮像装置、撮像システム
JP2021144142A (ja) 2020-03-12 2021-09-24 株式会社シグマ 結像光学系
WO2021220579A1 (ja) 2020-05-01 2021-11-04 株式会社ニコン 光学系、光学機器及び光学系の製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7163127B2 (ja) 2018-10-09 2022-10-31 キヤノン株式会社 光学系及び撮像装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014142601A (ja) 2012-12-27 2014-08-07 Panasonic Corp インナーフォーカスレンズ系、交換レンズ装置及びカメラシステム
JP2021113905A (ja) 2020-01-20 2021-08-05 キヤノン株式会社 光学系およびそれを有する撮像装置、撮像システム
JP2021144142A (ja) 2020-03-12 2021-09-24 株式会社シグマ 結像光学系
WO2021220579A1 (ja) 2020-05-01 2021-11-04 株式会社ニコン 光学系、光学機器及び光学系の製造方法

Also Published As

Publication number Publication date
US20230213734A1 (en) 2023-07-06
US12386161B2 (en) 2025-08-12
JP2023099387A (ja) 2023-07-13
US20250341708A1 (en) 2025-11-06

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