JP2002221661A - ズームレンズ系 - Google Patents

ズームレンズ系

Info

Publication number
JP2002221661A
JP2002221661A JP2001015740A JP2001015740A JP2002221661A JP 2002221661 A JP2002221661 A JP 2002221661A JP 2001015740 A JP2001015740 A JP 2001015740A JP 2001015740 A JP2001015740 A JP 2001015740A JP 2002221661 A JP2002221661 A JP 2002221661A
Authority
JP
Japan
Prior art keywords
lens
focal length
negative
conditional expression
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.)
Withdrawn
Application number
JP2001015740A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002221661A5 (enExample
Inventor
Takashi Enomoto
隆 榎本
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP2001015740A priority Critical patent/JP2002221661A/ja
Priority to US10/050,920 priority patent/US6721107B2/en
Priority to KR1020020003807A priority patent/KR20020062826A/ko
Priority to DE10202686A priority patent/DE10202686A1/de
Publication of JP2002221661A publication Critical patent/JP2002221661A/ja
Publication of JP2002221661A5 publication Critical patent/JP2002221661A5/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G02B15/143503—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
    • 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
    • G02B3/00—Simple or compound lenses
    • G02B3/0087—Simple or compound lenses with index gradient
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B2003/0093—Simple or compound lenses characterised by the shape

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP2001015740A 2001-01-24 2001-01-24 ズームレンズ系 Withdrawn JP2002221661A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001015740A JP2002221661A (ja) 2001-01-24 2001-01-24 ズームレンズ系
US10/050,920 US6721107B2 (en) 2001-01-24 2002-01-22 Zoom lens system
KR1020020003807A KR20020062826A (ko) 2001-01-24 2002-01-23 줌 렌즈 시스템
DE10202686A DE10202686A1 (de) 2001-01-24 2002-01-24 Variolinsensystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001015740A JP2002221661A (ja) 2001-01-24 2001-01-24 ズームレンズ系

Publications (2)

Publication Number Publication Date
JP2002221661A true JP2002221661A (ja) 2002-08-09
JP2002221661A5 JP2002221661A5 (enExample) 2004-12-16

Family

ID=18882235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001015740A Withdrawn JP2002221661A (ja) 2001-01-24 2001-01-24 ズームレンズ系

Country Status (4)

Country Link
US (1) US6721107B2 (enExample)
JP (1) JP2002221661A (enExample)
KR (1) KR20020062826A (enExample)
DE (1) DE10202686A1 (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6885507B2 (en) 2002-04-19 2005-04-26 Pentax Corporation Zoom lens system which covers a wide angle range
KR100616643B1 (ko) * 2004-12-21 2006-08-28 삼성전기주식회사 초소형 카메라 모듈용 렌즈 시스템
JP2009204997A (ja) * 2008-02-28 2009-09-10 Fujinon Corp 画像読取レンズ及び画像読取装置
CN108681033A (zh) * 2018-05-22 2018-10-19 德伽智能光电（镇江）有限公司 一种光学镜头
CN109212715A (zh) * 2017-06-30 2019-01-15 宁波舜宇车载光学技术有限公司 光学镜头
CN109752825A (zh) * 2018-06-06 2019-05-14 浙江舜宇光学有限公司 光学成像镜片组
CN119335698A (zh) * 2024-12-19 2025-01-21 苏州莱能士光电科技股份有限公司 一种高解析力大通光的小型车载后视镜头

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7304804B2 (en) * 2003-03-31 2007-12-04 Minolta Co., Ltd. Zoom lens device
CN100397136C (zh) * 2006-09-12 2008-06-25 亚洲光学股份有限公司 变焦镜头
US7652826B2 (en) * 2007-07-12 2010-01-26 Olympus Imaging Corp. Three-unit zoom lens system and image pickup apparatus using the same
WO2009096155A1 (ja) * 2008-01-28 2009-08-06 Panasonic Corporation ズームレンズ系、撮像装置及びカメラ

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6474521A (en) * 1987-09-17 1989-03-20 Canon Kk Rear focus type zoom lens
JPH0734088B2 (ja) 1987-10-30 1995-04-12 旭光学工業株式会社 カメラの電磁駆動シャッタ
GB2213285B (en) 1987-12-29 1992-10-14 Asahi Optical Co Ltd Compact zoom lens system capable of high zoom ratio and having coverage of a wide visual field
JP2817916B2 (ja) 1988-03-25 1998-10-30 旭光学工業株式会社 高変倍比コンパクトカメラ用ズームレンズ
JP2548968B2 (ja) 1988-05-31 1996-10-30 旭光学工業株式会社 カメラの絞り・焦点調整装置
US5237357A (en) 1988-05-31 1993-08-17 Asahi Kogaku Kogyo Kabushiki Kaisha Aperture and focus adjusting device for a camera
US4978204A (en) 1988-09-08 1990-12-18 Asahi Kogaku Kogyo Kabushik Kaisha High zoom-ratio zoom lens system for use in a compact camera
GB2261303B (en) 1989-03-31 1993-09-15 Asahi Optical Co Ltd Zooming adjustment of a zoom lens
GB2231967B (en) 1989-04-14 1994-01-12 Asahi Optical Co Ltd Control apparatus of focus and shutter of camera
US5313244A (en) 1989-06-28 1994-05-17 Asahi Kogaku Kogyo Kabushiki Kaisha Camera
JPH0493812A (ja) * 1990-08-03 1992-03-26 Canon Inc 変倍レンズ
MY106892A (en) 1989-11-08 1995-08-30 Canon Kk Compact varifocal lens.
US5270864A (en) * 1991-04-30 1993-12-14 Minolta Camera Kabushiki Kaisha Zoom lens system for use in copying apparatus
US5268792A (en) * 1991-05-20 1993-12-07 Eastman Kodak Company Zoom lens
JP3034088B2 (ja) 1991-05-21 2000-04-17 旭光学工業株式会社 すべりクラッチ機構
US5345338A (en) * 1992-03-30 1994-09-06 Minolta Camera Kabushiki Kaisha Zoom lens system for use in a copying apparatus
JP3503902B2 (ja) 1992-05-18 2004-03-08 富士写真光機株式会社 小型ズームレンズ
US5671449A (en) 1993-09-07 1997-09-23 Asahi Kogaku Kogyo Kabushiki Kaisha Switching system for camera
JPH07140386A (ja) 1993-11-12 1995-06-02 Asahi Optical Co Ltd インナーフォーカス方式の望遠ズームレンズ
JPH07174972A (ja) * 1993-12-21 1995-07-14 Minolta Co Ltd 複写用変倍レンズ
JP3590424B2 (ja) 1994-10-07 2004-11-17 ペンタックス株式会社 ズームレンズ鏡筒のクラッチ装置
JPH08146296A (ja) 1994-11-17 1996-06-07 Konica Corp 可変焦点距離レンズ
JP3462619B2 (ja) 1995-05-12 2003-11-05 ペンタックス株式会社 ズームレンズ鏡筒
KR100371773B1 (ko) 1995-07-07 2003-04-10 펜탁스 가부시키가이샤 렌즈셔터타입줌렌즈카메라및이러한카메라를제어하는방법
US5842057A (en) 1996-01-26 1998-11-24 Asahi Kogaki Kogo Kabushiki Kaisha Camera with lens barrier apparatus
JP3576683B2 (ja) 1996-01-29 2004-10-13 キヤノン株式会社 ズームレンズ
JP3495623B2 (ja) 1998-12-24 2004-02-09 ペンタックス株式会社 ズームレンズ系
JP3752097B2 (ja) 1999-03-24 2006-03-08 ペンタックス株式会社 ズームレンズ系
JP3505153B2 (ja) 2000-01-28 2004-03-08 ペンタックス株式会社 ズームレンズ系
JP3495677B2 (ja) 2000-02-24 2004-02-09 ペンタックス株式会社 ズームレンズ系

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6885507B2 (en) 2002-04-19 2005-04-26 Pentax Corporation Zoom lens system which covers a wide angle range
KR100616643B1 (ko) * 2004-12-21 2006-08-28 삼성전기주식회사 초소형 카메라 모듈용 렌즈 시스템
JP2009204997A (ja) * 2008-02-28 2009-09-10 Fujinon Corp 画像読取レンズ及び画像読取装置
CN109212715A (zh) * 2017-06-30 2019-01-15 宁波舜宇车载光学技术有限公司 光学镜头
CN108681033A (zh) * 2018-05-22 2018-10-19 德伽智能光电（镇江）有限公司 一种光学镜头
CN108681033B (zh) * 2018-05-22 2019-10-29 德伽智能光电（镇江）有限公司 一种光学镜头
CN109752825A (zh) * 2018-06-06 2019-05-14 浙江舜宇光学有限公司 光学成像镜片组
CN119335698A (zh) * 2024-12-19 2025-01-21 苏州莱能士光电科技股份有限公司 一种高解析力大通光的小型车载后视镜头

Also Published As

Publication number Publication date
KR20020062826A (ko) 2002-07-31
US20020145810A1 (en) 2002-10-10
DE10202686A1 (de) 2002-07-25
US6721107B2 (en) 2004-04-13

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