JP4684386B2 - 光量調節装置および光学機器 - Google Patents

光量調節装置および光学機器 Download PDF

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Publication number
JP4684386B2
JP4684386B2 JP2000152805A JP2000152805A JP4684386B2 JP 4684386 B2 JP4684386 B2 JP 4684386B2 JP 2000152805 A JP2000152805 A JP 2000152805A JP 2000152805 A JP2000152805 A JP 2000152805A JP 4684386 B2 JP4684386 B2 JP 4684386B2
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JP
Japan
Prior art keywords
light
area
aperture
filter
covered
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
JP2000152805A
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English (en)
Japanese (ja)
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JP2001330869A5 (enExample
JP2001330869A (ja
Inventor
直也 金田
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 JP2000152805A priority Critical patent/JP4684386B2/ja
Priority to US09/861,771 priority patent/US6927798B2/en
Publication of JP2001330869A publication Critical patent/JP2001330869A/ja
Publication of JP2001330869A5 publication Critical patent/JP2001330869A5/ja
Application granted granted Critical
Publication of JP4684386B2 publication Critical patent/JP4684386B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Cameras (AREA)
  • Blocking Light For Cameras (AREA)
  • Studio Devices (AREA)
  • Exposure Control For Cameras (AREA)
  • Optical Elements Other Than Lenses (AREA)
JP2000152805A 2000-05-24 2000-05-24 光量調節装置および光学機器 Expired - Fee Related JP4684386B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000152805A JP4684386B2 (ja) 2000-05-24 2000-05-24 光量調節装置および光学機器
US09/861,771 US6927798B2 (en) 2000-05-24 2001-05-22 Light amount adjusting apparatus and optical apparatus having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000152805A JP4684386B2 (ja) 2000-05-24 2000-05-24 光量調節装置および光学機器

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2009230121A Division JP2010015172A (ja) 2009-10-02 2009-10-02 光量調節装置および光学機器

Publications (3)

Publication Number Publication Date
JP2001330869A JP2001330869A (ja) 2001-11-30
JP2001330869A5 JP2001330869A5 (enExample) 2007-07-12
JP4684386B2 true JP4684386B2 (ja) 2011-05-18

Family

ID=18658174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000152805A Expired - Fee Related JP4684386B2 (ja) 2000-05-24 2000-05-24 光量調節装置および光学機器

Country Status (2)

Country Link
US (1) US6927798B2 (enExample)
JP (1) JP4684386B2 (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3950707B2 (ja) * 2002-02-22 2007-08-01 キヤノン株式会社 光学機器
US7321470B2 (en) * 2002-10-08 2008-01-22 Olympus Corporation Camera
JP4164330B2 (ja) * 2002-10-21 2008-10-15 キヤノン株式会社 光学機器
US20040227839A1 (en) * 2003-05-13 2004-11-18 Stavely Donald J. Systems and methods for determining focus from light collected by the periphery of a lens
JP2005049531A (ja) * 2003-07-31 2005-02-24 Tamron Co Ltd 絞り装置、絞り装置を有するレンズ及びビデオカメラ
JP3893391B2 (ja) * 2003-08-05 2007-03-14 キヤノン株式会社 Ｎｄフィルタの製造方法
JP2005195845A (ja) * 2004-01-07 2005-07-21 Alps Electric Co Ltd 撮像装置
US20050226612A1 (en) * 2004-04-08 2005-10-13 Asia Optical Co., Inc. Automatic diaphragm assembly with a variable aperture for a lens
JP5084115B2 (ja) * 2005-07-21 2012-11-28 キヤノン株式会社 光量調節装置、光量調節装置を有する光学系及び撮影装置
US20070145700A1 (en) * 2005-10-17 2007-06-28 Richard Ambrose Method and apparatus for portable container with integrated seat and stabilization mechanism
KR100871564B1 (ko) * 2006-06-19 2008-12-02 삼성전기주식회사 카메라 모듈
JP4732264B2 (ja) * 2006-07-28 2011-07-27 キヤノン株式会社 撮像装置
US7724412B2 (en) * 2007-06-11 2010-05-25 Drs Rsta, Inc. Variable aperture and actuator assemblies for an imaging system
US8474721B2 (en) 2007-06-11 2013-07-02 Drs Rsta, Inc. Variable aperture and actuator assemblies for an imaging system
JP2010243697A (ja) * 2009-04-03 2010-10-28 Hoya Corp 樹脂製リードスクリューを用いたフォーカシング装置
JP2011248029A (ja) * 2010-05-26 2011-12-08 Canon Inc 光量調節装置および光学機器
US20140126848A1 (en) * 2012-11-06 2014-05-08 Raytheon Company Friction and wear reduction in cryogenic mechanisms and other systems

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253218A (ja) * 1989-03-27 1990-10-12 Canon Inc レンズ位置制御装置
JPH0455838A (ja) * 1990-06-25 1992-02-24 Sony Corp ビデオカメラ
JPH04345149A (ja) * 1991-05-23 1992-12-01 Sony Corp カメラの絞り装置
US5479298A (en) * 1991-12-20 1995-12-26 Canon Denshi Kabushiki Kaisha ND filter and aperture device using the same
US5825545A (en) * 1992-09-21 1998-10-20 Canon Kabushiki Kaisha Image stabilizing device
US6016221A (en) * 1992-09-21 2000-01-18 Canon Kabushiki Kaisha Image-shake preventing device
JPH06167738A (ja) * 1992-12-01 1994-06-14 Chinon Ind Inc 絞り装置
JP3247213B2 (ja) * 1993-07-22 2002-01-15 キヤノン株式会社 可変頂角プリズムの組立て方法
US6046768A (en) * 1994-06-15 2000-04-04 Canon Kabushiki Kaisha Apparatus used for image blur prevention
JP3246241B2 (ja) * 1994-11-17 2002-01-15 キヤノン株式会社 光学装置
JPH08184876A (ja) * 1994-12-29 1996-07-16 Canon Inc 絞り装置および撮像装置
JPH09184952A (ja) * 1996-01-05 1997-07-15 Canon Inc レンズ鏡筒および光学機器
JPH09298683A (ja) * 1996-04-26 1997-11-18 Sony Corp 映像信号処理方法及び映像信号処理装置
JPH118803A (ja) * 1997-04-25 1999-01-12 Konica Corp 固体撮像素子を受像手段とするカメラ
JP3961655B2 (ja) * 1997-12-25 2007-08-22 キヤノン電子株式会社 光量調節装置および画像入力装置
JP4273372B2 (ja) * 1998-07-31 2009-06-03 ソニー株式会社 撮像装置
JP4200408B2 (ja) * 1999-10-21 2008-12-24 ソニー株式会社 撮像装置

Also Published As

Publication number Publication date
US6927798B2 (en) 2005-08-09
US20020008772A1 (en) 2002-01-24
JP2001330869A (ja) 2001-11-30

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