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
- Authority
- JP
- Japan
- Prior art keywords
- filter
- region
- control unit
- aperture
- opening
- 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.)
- Granted
Links
- 230000003287 optical Effects 0.000 claims 5
- 238000002834 transmittance Methods 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 1
Claims (3)
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 .
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)
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 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)
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 |
-
2007
- 2007-05-23 CN CNB200710104194XA patent/CN100520557C/en active Active
-
2009
- 2009-05-28 JP JP2009128826A patent/JP5111444B2/en not_active Expired - Fee Related
-
2010
- 2010-04-01 JP JP2010085278A patent/JP5143177B2/en active Active
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