CN102540389B - 透镜系统 - Google Patents

透镜系统 Download PDF

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Publication number
CN102540389B
CN102540389B CN201110424221.8A CN201110424221A CN102540389B CN 102540389 B CN102540389 B CN 102540389B CN 201110424221 A CN201110424221 A CN 201110424221A CN 102540389 B CN102540389 B CN 102540389B
Authority
CN
China
Prior art keywords
maximum current
current value
unit
lens
value
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.)
Expired - Fee Related
Application number
CN201110424221.8A
Other languages
English (en)
Chinese (zh)
Other versions
CN102540389A (zh
Inventor
粕谷润一
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 CN102540389A publication Critical patent/CN102540389A/zh
Application granted granted Critical
Publication of CN102540389B publication Critical patent/CN102540389B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
    • 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
    • G03B13/02—Viewfinders
    • G03B13/04—Viewfinders of direct vision type, e.g. frame, sighting mark
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)
CN201110424221.8A 2010-12-17 2011-12-16 透镜系统 Expired - Fee Related CN102540389B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-281453 2010-12-17
JP2010281453A JP5725834B2 (ja) 2010-12-17 2010-12-17 レンズシステム

Publications (2)

Publication Number Publication Date
CN102540389A CN102540389A (zh) 2012-07-04
CN102540389B true CN102540389B (zh) 2015-03-11

Family

ID=45440022

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110424221.8A Expired - Fee Related CN102540389B (zh) 2010-12-17 2011-12-16 透镜系统

Country Status (5)

Country Link
US (1) US8711490B2 (enExample)
EP (1) EP2466356B1 (enExample)
JP (1) JP5725834B2 (enExample)
CN (1) CN102540389B (enExample)
BR (1) BRPI1105743A2 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013108818A1 (ja) * 2012-01-18 2013-07-25 富士フイルム株式会社 レンズ装置、駆動方法及び駆動プログラム、記録媒体、並びに撮像装置
CN106877762B (zh) * 2017-03-24 2023-03-28 陕西科技大学 一种步进电机驱动器电流标定装置及方法
JP7358116B2 (ja) * 2019-08-21 2023-10-10 キヤノン株式会社 撮像装置、制御装置、プログラム、記憶媒体及び制御方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148201A (en) * 1990-05-28 1992-09-15 Fuji Photo Film Co., Ltd. Zooming control apparatus for a camera
US5872433A (en) * 1986-05-21 1999-02-16 Canon Kabushiki Kaisha Image pickup apparatus including interruption means for causing recordation of an electrical image signal in response to operation of a second trigger before completion of a predetermined step by a first trigger

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06138358A (ja) * 1992-10-28 1994-05-20 Canon Inc 光学機器のモータ制御方法及び装置
JP3483211B2 (ja) 1993-04-16 2004-01-06 富士写真光機株式会社 テレビカメラ用レンズの駆動装置
JP3873321B2 (ja) * 1996-05-14 2007-01-24 フジノン株式会社 テレビカメラ用ズームレンズ制御装置
JP2000111780A (ja) 1998-10-05 2000-04-21 Fuji Photo Optical Co Ltd レンズ装置
JP3555607B2 (ja) * 2001-11-29 2004-08-18 ミノルタ株式会社 オートフォーカス装置
JP2005077698A (ja) * 2003-08-29 2005-03-24 Ricoh Co Ltd デジタルカメラ
JP2007148075A (ja) * 2005-11-29 2007-06-14 Sharp Corp レンズ駆動装置およびレンズ駆動方法
JP4869200B2 (ja) * 2007-10-02 2012-02-08 キヤノン株式会社 テレビレンズ装置及びそれを備えたテレビカメラシステム
JP5379739B2 (ja) * 2010-04-30 2013-12-25 キヤノン株式会社 レンズ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5872433A (en) * 1986-05-21 1999-02-16 Canon Kabushiki Kaisha Image pickup apparatus including interruption means for causing recordation of an electrical image signal in response to operation of a second trigger before completion of a predetermined step by a first trigger
US5148201A (en) * 1990-05-28 1992-09-15 Fuji Photo Film Co., Ltd. Zooming control apparatus for a camera

Also Published As

Publication number Publication date
US8711490B2 (en) 2014-04-29
US20120154927A1 (en) 2012-06-21
EP2466356A1 (en) 2012-06-20
BRPI1105743A2 (pt) 2013-10-08
CN102540389A (zh) 2012-07-04
JP2012128315A (ja) 2012-07-05
JP5725834B2 (ja) 2015-05-27
EP2466356B1 (en) 2019-03-27

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150311