JP4273008B2 - 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

Info

Publication number
JP4273008B2
JP4273008B2 JP2004020550A JP2004020550A JP4273008B2 JP 4273008 B2 JP4273008 B2 JP 4273008B2 JP 2004020550 A JP2004020550 A JP 2004020550A JP 2004020550 A JP2004020550 A JP 2004020550A JP 4273008 B2 JP4273008 B2 JP 4273008B2
Authority
JP
Japan
Prior art keywords
filter
light
optical axis
aperture
lever
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
JP2004020550A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005215215A5 (enExample
JP2005215215A (ja
Inventor
正衛 宮川
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 JP2004020550A priority Critical patent/JP4273008B2/ja
Priority to US11/042,310 priority patent/US7172349B2/en
Publication of JP2005215215A publication Critical patent/JP2005215215A/ja
Publication of JP2005215215A5 publication Critical patent/JP2005215215A5/ja
Application granted granted Critical
Publication of JP4273008B2 publication Critical patent/JP4273008B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G03B9/04—Single movable plate with two or more apertures of graded size, e.g. sliding plate or pivoting plate

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)
  • Blocking Light For Cameras (AREA)
JP2004020550A 2004-01-28 2004-01-28 光量調節装置および光学機器 Expired - Fee Related JP4273008B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004020550A JP4273008B2 (ja) 2004-01-28 2004-01-28 光量調節装置および光学機器
US11/042,310 US7172349B2 (en) 2004-01-28 2005-01-24 Light amount control device and optical apparatus with guard portion to protect ND filter from lever member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004020550A JP4273008B2 (ja) 2004-01-28 2004-01-28 光量調節装置および光学機器

Publications (3)

Publication Number Publication Date
JP2005215215A JP2005215215A (ja) 2005-08-11
JP2005215215A5 JP2005215215A5 (enExample) 2007-03-15
JP4273008B2 true JP4273008B2 (ja) 2009-06-03

Family

ID=34792616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004020550A Expired - Fee Related JP4273008B2 (ja) 2004-01-28 2004-01-28 光量調節装置および光学機器

Country Status (2)

Country Link
US (1) US7172349B2 (enExample)
JP (1) JP4273008B2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4510783B2 (ja) 2006-05-23 2010-07-28 キヤノン株式会社 光学機器
JP4897475B2 (ja) * 2006-12-27 2012-03-14 セイコープレシジョン株式会社 アクチュエータ及びそれを備えたカメラ用羽根駆動装置
JP5875983B2 (ja) * 2010-08-23 2016-03-02 キヤノン電子株式会社 光量調節装置および光学機器
US9153962B2 (en) * 2013-02-13 2015-10-06 Panasonic Intellectual Property Management Co., Ltd. Motor control device and imaging apparatus with improved power source stability
CN103439852B (zh) * 2013-07-12 2015-07-15 芜湖市安曼特微显示科技有限公司 一种对比度调节装置及具有该装置的投影机
US9904146B2 (en) * 2015-10-29 2018-02-27 GM Global Technology Operations LLC Camera with positionable light shade

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2625629B2 (ja) 1993-07-14 1997-07-02 キヤノン電子株式会社 光量制御装置
JP4200408B2 (ja) * 1999-10-21 2008-12-24 ソニー株式会社 撮像装置
JP4250516B2 (ja) * 2003-12-08 2009-04-08 キヤノン株式会社 光量調節装置、光学装置および撮影装置
JP3983235B2 (ja) * 2004-08-20 2007-09-26 ニスカ株式会社 光量調整装置

Also Published As

Publication number Publication date
US20050163501A1 (en) 2005-07-28
US7172349B2 (en) 2007-02-06
JP2005215215A (ja) 2005-08-11

Similar Documents

Publication Publication Date Title
JP5173979B2 (ja) 絞り装置およびそれを有するレンズ鏡筒並びに撮像装置
US7375905B2 (en) Optical unit and image pickup apparatus having the same
JP3950707B2 (ja) 光学機器
CN101819370B (zh) 光量调节装置、透镜镜筒、图像拾取装置和控制方法
JP5004830B2 (ja) レンズ駆動装置およびレンズ鏡筒および光学機器
JP4666820B2 (ja) 虹彩型光量調節装置、レンズ鏡筒および撮影装置
CN100529939C (zh) 可变光圈装置、光圈驱动装置和控制方法及摄像机单元
US6340252B1 (en) Light-quantity controlling device and apparatus using the same
JP4684386B2 (ja) 光量調節装置および光学機器
JP4821847B2 (ja) 光学部品の切換機構、レンズ鏡筒及び撮像装置
JP4273008B2 (ja) 光量調節装置および光学機器
JP2000310803A (ja) 光量調節装置、レンズ鏡筒および撮影装置
JP4464184B2 (ja) 光学フィルタ
JP4886503B2 (ja) レンズ鏡筒
JP2009169232A (ja) カメラのレンズ鏡筒
JP4551757B2 (ja) 絞り装置及び撮像装置
US8731393B2 (en) Optical apparatus including light amount adjusting apparatus
JP4950498B2 (ja) 光学機器
JP2004198828A (ja) 光学機器
JP4731854B2 (ja) 光学機器
JP2002116364A (ja) レンズ鏡筒および光学機器
JP2011151590A (ja) 光学フィルタ装置、光量調節装置および光学機器
JP2004309952A (ja) 電子カメラのシャッタ−
JP2001255442A (ja) レンズ鏡筒および光学機器
JP2010139719A (ja) 光量調節装置

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070126

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070126

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080828

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080902

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081030

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20081106

RD05 Notification of revocation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7425

Effective date: 20081201

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081202

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090129

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090224

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090302

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120306

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4273008

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130306

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140306

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees