JP5619543B2 - モータ、及び光量調整装置 - Google Patents

モータ、及び光量調整装置 Download PDF

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Publication number
JP5619543B2
JP5619543B2 JP2010203148A JP2010203148A JP5619543B2 JP 5619543 B2 JP5619543 B2 JP 5619543B2 JP 2010203148 A JP2010203148 A JP 2010203148A JP 2010203148 A JP2010203148 A JP 2010203148A JP 5619543 B2 JP5619543 B2 JP 5619543B2
Authority
JP
Japan
Prior art keywords
rotor
magnetic pole
stator
coil
pole portion
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
JP2010203148A
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English (en)
Japanese (ja)
Other versions
JP2012060823A5 (enExample
JP2012060823A (ja
Inventor
青島　力
力 青島
望月　直人
直人 望月
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
Canon Finetech Nisca Inc
Original Assignee
Canon Inc
Nisca Corp
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, Nisca Corp filed Critical Canon Inc
Priority to JP2010203148A priority Critical patent/JP5619543B2/ja
Priority to US13/226,550 priority patent/US8503104B2/en
Priority to CN201110272006.0A priority patent/CN102402102B/zh
Publication of JP2012060823A publication Critical patent/JP2012060823A/ja
Publication of JP2012060823A5 publication Critical patent/JP2012060823A5/ja
Application granted granted Critical
Publication of JP5619543B2 publication Critical patent/JP5619543B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • G03B9/06—Two or more co-operating pivoted blades, e.g. iris type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K37/16—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures having horseshoe armature cores

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
JP2010203148A 2010-09-10 2010-09-10 モータ、及び光量調整装置 Expired - Fee Related JP5619543B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2010203148A JP5619543B2 (ja) 2010-09-10 2010-09-10 モータ、及び光量調整装置
US13/226,550 US8503104B2 (en) 2010-09-10 2011-09-07 Motor having small size and high output, and light amount adjustment device equipped with the motor
CN201110272006.0A CN102402102B (zh) 2010-09-10 2011-09-09 小型高输出马达及配备有该马达的光量调节装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010203148A JP5619543B2 (ja) 2010-09-10 2010-09-10 モータ、及び光量調整装置

Publications (3)

Publication Number Publication Date
JP2012060823A JP2012060823A (ja) 2012-03-22
JP2012060823A5 JP2012060823A5 (enExample) 2013-10-31
JP5619543B2 true JP5619543B2 (ja) 2014-11-05

Family

ID=46057246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010203148A Expired - Fee Related JP5619543B2 (ja) 2010-09-10 2010-09-10 モータ、及び光量調整装置

Country Status (1)

Country Link
JP (1) JP5619543B2 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6367663B2 (ja) * 2014-09-24 2018-08-01 日本電産コパル株式会社 電磁アクチュエータ、羽根駆動装置、及び該羽根駆動装置を備えたカメラ
WO2017009904A1 (ja) * 2015-07-10 2017-01-19 オリンパス株式会社 光調節装置及び光調節装置を搭載する光学機器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2754953B1 (fr) * 1996-10-21 1999-02-26 Moving Magnet Tech Moteur polyphase, notamment pour l'entrainement d'une aiguille d'un afficheur
JP2002078312A (ja) * 2000-08-28 2002-03-15 Tdk Corp ステッピングモータ
JP5020649B2 (ja) * 2007-01-31 2012-09-05 日本電産コパル株式会社 ステッピングモータ及びカメラ用絞り装置
JP5171067B2 (ja) * 2007-03-02 2013-03-27 キヤノン株式会社 駆動装置及び光量調節装置

Also Published As

Publication number Publication date
JP2012060823A (ja) 2012-03-22

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