JP2009193078A5 - - Google Patents

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Publication number
JP2009193078A5
JP2009193078A5 JP2009128826A JP2009128826A JP2009193078A5 JP 2009193078 A5 JP2009193078 A5 JP 2009193078A5 JP 2009128826 A JP2009128826 A JP 2009128826A JP 2009128826 A JP2009128826 A JP 2009128826A JP 2009193078 A5 JP2009193078 A5 JP 2009193078A5
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JP
Japan
Prior art keywords
filter
region
control unit
aperture
opening
Prior art date
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Application number
JP2009128826A
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Japanese (ja)
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JP5111444B2 (en
JP2009193078A (en
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Publication date
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Priority to JP2009128826A priority Critical patent/JP5111444B2/en
Priority claimed from JP2009128826A external-priority patent/JP5111444B2/en
Publication of JP2009193078A publication Critical patent/JP2009193078A/en
Publication of JP2009193078A5 publication Critical patent/JP2009193078A5/ja
Application granted granted Critical
Publication of JP5111444B2 publication Critical patent/JP5111444B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (3)

開口の大きさを変更可能な絞りと、
該絞りの開口に対して移動可能なＮＤフィルタと、
前記ＮＤフィルタを駆動するアクチュエータと、
該アクチュエータを制御する制御手段とを有し、
前記ＮＤフィルタは、７５％以上の透過率を有する第１の領域と、前記ＮＤフィルタの移動方向において前記第１の領域に隣接し、７５％よりも低い透過率を有する第２の領域とを有し、
前記第１及び第２の領域は、前記開口に応じて形成される光路に対して挿入及び退避が可能であり、前記第１の領域は、前記第２の領域よりも先に前記光路に挿入され、
前記第１の領域は、開放絞り開口よりも絞られた第１の開口の全体を覆うことが可能で、かつ前記開放絞り開口の全体を覆うことはできない大きさを有しており、
前記第１の領域が前記第１の開口に対して退避する前記ＮＤフィルタの位置を第１の位置とし、前記第１の領域が前記第１の開口の全体を覆う前記ＮＤフィルタの位置を第２の位置とするとき、
前記制御手段は、動画撮影中における前記ＮＤフィルタの前記第１の位置よりも退避した位置から該第１の位置よりも挿入される位置への挿入動作において、前記ＮＤフィルタが前記第１の位置にあるか否かを判断し、前記ＮＤフィルタが前記第１の位置にあるとの判断に応じて、前記ＮＤフィルタを前記第２の位置まで停止することなく移動させるよう前記アクチュエータを制御し、
動画撮影中における前記ＮＤフィルタの前記第２の位置よりも挿入された位置から該第２の位置よりも退避する位置への退避動作において、前記ＮＤフィルタが前記第２の位置にあるか否かを判断し、前記ＮＤフィルタが前記第２の位置にあるとの判断に応じて、前記ＮＤフィルタを前記第１の位置まで停止することなく移動させるよう前記アクチュエータを制御することを特徴とする光学機器。 An aperture that can change the size of the aperture;
An ND filter movable with respect to the aperture of the diaphragm ;
An actuator for driving the ND filter;
Control means for controlling the actuator,
The ND filter includes a first region having a transmittance of 75% or more, and a second region having a transmittance lower than 75% adjacent to the first region in the moving direction of the ND filter. Have
The first and second regions can be inserted into and retracted from an optical path formed according to the opening, and the first region is inserted into the optical path before the second region. And
The first region has a size that can cover the entire first aperture that is narrower than the open aperture opening and cannot cover the entire open aperture opening;
The position of the ND filter where the first area retracts from the first opening is defined as a first position, and the position of the ND filter covering the entire first opening is defined as the first area. When position 2
In the insertion operation from the position where the ND filter is retracted from the first position during moving image shooting to the position where the ND filter is inserted from the first position, the control unit moves the ND filter to the first position. And controlling the actuator to move the ND filter to the second position without stopping in response to determining that the ND filter is in the first position;
Whether or not the ND filter is in the second position in the retraction operation from the position where the ND filter is inserted from the second position during moving image shooting to a position where the ND filter is retracted from the second position. to determine, in response to determination that the ND filter is in said second position, and wherein the controller controls the actuator to move without stopping the ND filter to the first position the optical Equipment . 前記制御手段は、動画撮影中において、前記ＮＤフィルタを前記第１の位置と前記第２の位置との間で１／２秒以下の移動時間で移動させることを特徴とする請求項１に記載の光学機器。2. The control unit according to claim 1, wherein the control unit moves the ND filter between the first position and the second position with a movement time of ½ second or less during moving image shooting. Optical equipment. 前記制御手段は、動画撮影中において、前記ＮＤフィルタを前記第１の位置と前記第２の位置との間で１／４秒以下の移動時間で移動させることを特徴とする請求項１に記載の光学機器。2. The control unit according to claim 1, wherein the control unit moves the ND filter between the first position and the second position with a moving time of ¼ second or less during moving image shooting. Optical equipment.
JP2009128826A 2006-05-23 2009-05-28 Optical equipment Expired - Fee Related JP5111444B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009128826A JP5111444B2 (en) 2006-05-23 2009-05-28 Optical equipment

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006142514 2006-05-23
JP2006142514 2006-05-23
JP2009128826A JP5111444B2 (en) 2006-05-23 2009-05-28 Optical equipment

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2006174415A Division JP4510783B2 (en) 2006-05-23 2006-06-23 Optical equipment

Publications (3)

Publication Number Publication Date
JP2009193078A JP2009193078A (en) 2009-08-27
JP2009193078A5 true JP2009193078A5 (en) 2011-07-28
JP5111444B2 JP5111444B2 (en) 2013-01-09

Family

ID=38906388

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2009128826A Expired - Fee Related JP5111444B2 (en) 2006-05-23 2009-05-28 Optical equipment
JP2010085278A Active JP5143177B2 (en) 2006-05-23 2010-04-01 Optical apparatus and light amount adjusting device

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2010085278A Active JP5143177B2 (en) 2006-05-23 2010-04-01 Optical apparatus and light amount adjusting device

Country Status (2)

Country Link
JP (2) JP5111444B2 (en)
CN (1) CN100520557C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010204206A (en) * 2009-02-27 2010-09-16 Sony Corp Light quantity adjusting device, lens barrel, imaging apparatus, and method of controlling the imaging apparatus
KR102209069B1 (en) * 2014-05-16 2021-01-28 삼성전자주식회사 Auto focus driving unit and photographing apparatus having the same
CN104749767B (en) * 2015-03-13 2017-05-03 中国科学院西安光学精密机械研究所 High-precision type electric control diaphragm device
US10757340B2 (en) * 2018-03-09 2020-08-25 Pony Ai Inc. Adaptive filter system for self-driving vehicle
CN108957734B (en) * 2018-06-04 2021-03-19 中国科学院合肥物质科学研究院 High-temperature-resistant electric diaphragm with large dynamic adjustment range

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2607702B2 (en) * 1989-11-01 1997-05-07 キヤノン電子株式会社 Light intensity adjustment device
US5479298A (en) * 1991-12-20 1995-12-26 Canon Denshi Kabushiki Kaisha ND filter and aperture device using the same
KR950022787A (en) * 1993-12-08 1995-07-28 배순훈 Aperture of the shooting device
JP3626914B2 (en) * 2001-03-02 2005-03-09 株式会社タムロン Aperture device
JP3802870B2 (en) * 2002-12-20 2006-07-26 株式会社タムロン Light control device
JP2004348051A (en) * 2003-05-26 2004-12-09 Alps Electric Co Ltd Shutter driving device in common use as diaphragm
JP2005049531A (en) * 2003-07-31 2005-02-24 Tamron Co Ltd Diaphragm device and lens and video camera having diaphragm device
JP4630565B2 (en) * 2004-03-31 2011-02-09 キヤノン株式会社 Optical equipment

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