CN112748520A - 光学系统、投影透镜、图像投影装置和图像捕获透镜 - Google Patents

光学系统、投影透镜、图像投影装置和图像捕获透镜 Download PDF

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Publication number
CN112748520A
CN112748520A CN202011153471.8A CN202011153471A CN112748520A CN 112748520 A CN112748520 A CN 112748520A CN 202011153471 A CN202011153471 A CN 202011153471A CN 112748520 A CN112748520 A CN 112748520A
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CN
China
Prior art keywords
lens
optical system
unit
projection
negative
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
CN202011153471.8A
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English (en)
Chinese (zh)
Inventor
高桥真
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 CN112748520A publication Critical patent/CN112748520A/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
    • G02B15/142—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 two groups only
    • 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
    • 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
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/147—Optical correction of image distortions, e.g. keystone

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)
CN202011153471.8A 2019-10-29 2020-10-26 光学系统、投影透镜、图像投影装置和图像捕获透镜 Pending CN112748520A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019195985A JP2021071502A (ja) 2019-10-29 2019-10-29 光学系、投射レンズ、画像投射装置および撮像レンズ
JP2019-195985 2019-10-29

Publications (1)

Publication Number Publication Date
CN112748520A true CN112748520A (zh) 2021-05-04

Family

ID=75585067

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011153471.8A Pending CN112748520A (zh) 2019-10-29 2020-10-26 光学系统、投影透镜、图像投影装置和图像捕获透镜

Country Status (3)

Country Link
US (1) US20210124156A1 (https=)
JP (1) JP2021071502A (https=)
CN (1) CN112748520A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116774394A (zh) * 2022-03-17 2023-09-19 佳能株式会社 光学系统、成像装置、车载系统及移动装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7187590B2 (ja) 2021-01-27 2022-12-12 キヤノン株式会社 光学系、撮像装置、車載システムおよび移動装置
JP2022114767A (ja) 2021-01-27 2022-08-08 キヤノン株式会社 光学系、撮像装置、車載システムおよび移動装置
JP2022114764A (ja) 2021-01-27 2022-08-08 キヤノン株式会社 光学系、撮像装置、車載システムおよび移動装置
EP4246200B1 (en) 2022-03-17 2025-01-15 Canon Kabushiki Kaisha Optical system including negative lens and positive lens, imaging apparatus including the same, in-vehicle system including the same, and moving apparatus including the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003248171A (ja) * 2001-12-17 2003-09-05 Matsushita Electric Ind Co Ltd 温度補償機能を有する変倍撮像装置およびそれを用いたビデオカメラ
JP2007079339A (ja) * 2005-09-16 2007-03-29 Olympus Imaging Corp 結像光学系及びそれを備えた撮像装置
JP2018077291A (ja) * 2016-11-07 2018-05-17 京セラオプテック株式会社 撮像レンズ
CN108469667A (zh) * 2018-05-31 2018-08-31 江西联创电子有限公司 广角镜头
CN109870787A (zh) * 2019-03-20 2019-06-11 江西联益光学有限公司 一种光学成像镜头
CN110941077A (zh) * 2018-09-25 2020-03-31 富士胶片株式会社 成像光学系统、投射型显示装置及摄像装置
CN111221113A (zh) * 2018-11-27 2020-06-02 富士胶片株式会社 变焦镜头及摄像装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003248171A (ja) * 2001-12-17 2003-09-05 Matsushita Electric Ind Co Ltd 温度補償機能を有する変倍撮像装置およびそれを用いたビデオカメラ
JP2007079339A (ja) * 2005-09-16 2007-03-29 Olympus Imaging Corp 結像光学系及びそれを備えた撮像装置
JP2018077291A (ja) * 2016-11-07 2018-05-17 京セラオプテック株式会社 撮像レンズ
CN108469667A (zh) * 2018-05-31 2018-08-31 江西联创电子有限公司 广角镜头
CN110941077A (zh) * 2018-09-25 2020-03-31 富士胶片株式会社 成像光学系统、投射型显示装置及摄像装置
CN111221113A (zh) * 2018-11-27 2020-06-02 富士胶片株式会社 变焦镜头及摄像装置
JP2020086172A (ja) * 2018-11-27 2020-06-04 富士フイルム株式会社 ズームレンズ及び撮像装置
CN109870787A (zh) * 2019-03-20 2019-06-11 江西联益光学有限公司 一种光学成像镜头

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116774394A (zh) * 2022-03-17 2023-09-19 佳能株式会社 光学系统、成像装置、车载系统及移动装置

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JP2021071502A (ja) 2021-05-06
US20210124156A1 (en) 2021-04-29

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Application publication date: 20210504