JP2014038291A5 - - Google Patents
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- JP2014038291A5 JP2014038291A5 JP2012181900A JP2012181900A JP2014038291A5 JP 2014038291 A5 JP2014038291 A5 JP 2014038291A5 JP 2012181900 A JP2012181900 A JP 2012181900A JP 2012181900 A JP2012181900 A JP 2012181900A JP 2014038291 A5 JP2014038291 A5 JP 2014038291A5
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- focus
- drive
- driving
- initial
- focus lens
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- 238000001514 detection method Methods 0.000 claims description 20
- 238000011156 evaluation Methods 0.000 claims description 12
- 230000000875 corresponding Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims 4
- 241000287462 Phalacrocorax carbo Species 0.000 claims 3
- 230000003287 optical Effects 0.000 claims 2
Description
上述の目的は、焦点評価値に基づいてフォーカスレンズを駆動する自動焦点検出装置であって、フォーカスレンズの駆動を制御する制御手段を有し、制御手段は、自動焦点検出動作の開始時にフォーカスレンズを予め設定されたスキャン範囲の端まで移動させる初期フォーカス駆動を行い、スキャン範囲で検出された焦点評価値のピークに対応する位置にフォーカスレンズを駆動するように構成され、制御手段は、初期フォーカス駆動を開始する際のフォーカスレンズの駆動速度である初期駆動速度を、フォーカスレンズの駆動方向が遠端側である場合よりも近端側である場合の方が速くなるように設定することを特徴とする自動焦点検出装置によって達成される。 The above objects, an automatic focus detection device for driving a full Okasurenzu based on focus point evaluation value, and a control means for controlling driving of the focus lens, control means, at the start of the auto focus detection operation It performs initial focus drive to end until in moving the preset scan range of the focus lens is configured to drive the focus lens to a position corresponding to the peak of the detected focus evaluation value at scan range, control The means is such that the initial drive speed, which is the drive speed of the focus lens when starting the initial focus drive, is faster when the drive direction of the focus lens is on the near end side than on the far end side. This is achieved by an automatic focus detection device characterized by setting.
Claims (8)
前記フォーカスレンズの駆動を制御する制御手段を有し、
前記制御手段は、自動焦点検出動作の開始時に前記フォーカスレンズを予め設定されたスキャン範囲の端まで移動させる初期フォーカス駆動を行い、前記スキャン範囲で検出された前記焦点評価値のピークに対応する位置に前記フォーカスレンズを駆動するように構成され、
前記制御手段は、前記初期フォーカス駆動を開始する際の前記フォーカスレンズの駆動速度である初期駆動速度を、前記フォーカスレンズの駆動方向が遠端側である場合よりも近端側である場合の方が速くなるように設定することを特徴とする自動焦点検出装置。 An automatic focus detection device for driving a full Okasurenzu based on focus point evaluation value,
Control means for controlling the driving of the focus lens;
Wherein the control means performs the initial focus drive to end until in moving the preset scan range starting at said focus lens auto focus detection operation, the peak of said detected focus evaluation value in the scan range wherein being configured to drive the focus lens to the corresponding position,
The control means sets an initial driving speed, which is a driving speed of the focus lens at the time of starting the initial focus driving, in a case where the driving direction of the focus lens is on the near end side than on the far end side. The automatic focus detection device is characterized in that the setting is made to be faster.
前記フォーカスレンズの駆動を制御する制御手段を有し、
前記制御手段は、自動焦点検出動作の開始時に前記フォーカスレンズを予め設定されたスキャン範囲の端まで移動させる初期フォーカス駆動を行い、前記スキャン範囲で検出された前記焦点評価値のピークに対応する位置に前記フォーカスレンズを駆動するように構成され、
前記制御手段は、前記初期フォーカス駆動を開始する際の前記フォーカスレンズの駆動速度である初期駆動速度を、前記フォーカスレンズを含む結像光学系の焦点距離もしくはズーム倍率が所定値以下である場合よりも前記所定値を超える場合の方が速くなるように設定することを特徴とする自動焦点検出装置。 An automatic focus detection device for driving a full Okasurenzu based on focus point evaluation value,
Control means for controlling the driving of the focus lens;
Wherein the control means performs the initial focus drive to end until in moving the preset scan range starting at said focus lens auto focus detection operation, the peak of said detected focus evaluation value in the scan range wherein being configured to drive the focus lens to the corresponding position,
The control means sets the initial driving speed, which is the driving speed of the focus lens when starting the initial focus driving, from the case where the focal length or zoom magnification of the imaging optical system including the focus lens is equal to or less than a predetermined value. Also, the automatic focus detection apparatus is set so that the speed when the predetermined value is exceeded is faster.
前記フォーカスレンズの駆動を制御する制御手段を有し、
前記制御手段は、自動焦点検出動作の開始時に前記フォーカスレンズを予め設定されたスキャン範囲の端まで移動させる初期フォーカス駆動を行い、前記スキャン範囲で検出された前記焦点評価値のピークに対応する位置に前記フォーカスレンズを駆動するように構成され、
前記制御手段は、前記初期フォーカス駆動を開始する際の前記フォーカスレンズの駆動速度である初期駆動速度を、前記スキャン範囲が所定範囲以下である場合よりも前記所定範囲を超える場合の方が速くなるように設定することを特徴とする自動焦点検出装置。 An automatic focus detection device for driving a full Okasurenzu based on focus point evaluation value,
Control means for controlling the driving of the focus lens;
Wherein the control means performs the initial focus drive to end until in moving the preset scan range starting at said focus lens auto focus detection operation, the peak of said detected focus evaluation value in the scan range wherein being configured to drive the focus lens to the corresponding position,
The control means increases the initial drive speed, which is the drive speed of the focus lens when starting the initial focus drive, when the scan range exceeds the predetermined range than when the scan range is equal to or less than the predetermined range. An automatic focus detection apparatus characterized by setting as follows.
画像データを取得する撮像手段と、を有し、
前記焦点評価値が前記画像データに基づいて算出される、
ことを特徴とする撮像装置。 An automatic focus detection apparatus according to any one of claims 1 to 4 ,
It possesses an imaging means for obtaining image data, and
The focus evaluation value is calculated based on the image data;
An imaging apparatus characterized by that .
自動焦点検出動作の開始時に、フォーカスレンズを予め設定されたスキャン範囲の端まで移動させる初期フォーカス駆動を行うステップと、
前記スキャン範囲で検出された焦点評価値のピークに対応する位置に前記フォーカスレンズを駆動するステップと、を有し、
前記初期フォーカス駆動を開始する際の前記フォーカスレンズの駆動速度である初期駆動速度が、前記フォーカスレンズの駆動方向が遠端側である場合よりも近端側である場合の方が速くなるように設定されることを特徴とする自動焦点検出装置の制御方法。 A control method for automatic focus detection device,
At the start of the automatic focus detecting operation, and rows Cormorant step the initial focus drive to end until in moving the preset scan range the full Okasurenzu,
Anda Luz step to drive the focus lens to a position corresponding to the peak of the detected focus evaluation value in the scan range,
As an initial drive speed is the driving speed of the focus lens at the time of starting the pre-Symbol initial focus driving, it is faster in the case where the driving direction of the focus lens is a near-end than if a far-end side control method of an automatic focus detection apparatus characterized by being configured.
自動焦点検出動作の開始時に、フォーカスレンズを予め設定されたスキャン範囲の端まで移動させる初期フォーカス駆動を行うステップと、
前記スキャン範囲で検出された焦点評価値のピークに対応する位置に前記フォーカスレンズを駆動するステップと、を有し、
前記初期フォーカス駆動を開始する際の前記フォーカスレンズの駆動速度である初期駆動速度が、前記フォーカスレンズを含む結像光学系の焦点距離もしくはズーム倍率が所定値以下である場合よりも前記所定値を超える場合の方が速くなるように設定されることを特徴とする自動焦点検出装置の制御方法。 A control method for automatic focus detection device,
At the start of the automatic focus detecting operation, and rows Cormorant step the initial focus drive to end until in moving the preset scan range the full Okasurenzu,
Anda Luz step to drive the focus lens to a position corresponding to the peak of the detected focus evaluation value in the scan range,
Before Symbol initial drive speed is the driving speed of the focus lens at the time of starting the initial focus driving, the predetermined value than when the focal length or zoom magnification of the imaging optical system including the focus lens is less than a predetermined value control method of an automatic focus detection device, characterized in that towards exceed the is set to be faster.
自動焦点検出動作の開始時に、フォーカスレンズを予め設定されたスキャン範囲の端まで移動させる初期フォーカス駆動を行うステップと、
前記スキャン範囲で検出された焦点評価値のピークに対応する位置に前記フォーカスレンズを駆動するステップと、を有し、
前記初期フォーカス駆動を開始する際の前記フォーカスレンズの駆動速度である初期駆動速度が、前記スキャン範囲が所定範囲以下である場合よりも前記所定範囲を超える場合の方が速くなるように設定されることを特徴とする自動焦点検出装置の制御方法。 A control method for automatic focus detection device,
At the start of the automatic focus detecting operation, and rows Cormorant step the initial focus drive to end until in moving the preset scan range the full Okasurenzu,
Anda Luz step to drive the focus lens to a position corresponding to the peak of the detected focus evaluation value in the scan range,
The initial drive speed is the driving speed of the focus lens at the time of starting the pre-Symbol initial focus driving, the scan range is set so it is faster when exceeding the predetermined range than when it is less than the predetermined range A control method for an automatic focus detection apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012181900A JP6087538B2 (en) | 2012-08-20 | 2012-08-20 | Automatic focus detection apparatus, control method therefor, and imaging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012181900A JP6087538B2 (en) | 2012-08-20 | 2012-08-20 | Automatic focus detection apparatus, control method therefor, and imaging apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014038291A JP2014038291A (en) | 2014-02-27 |
| JP2014038291A5 true JP2014038291A5 (en) | 2015-10-08 |
| JP6087538B2 JP6087538B2 (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012181900A Active JP6087538B2 (en) | 2012-08-20 | 2012-08-20 | Automatic focus detection apparatus, control method therefor, and imaging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6087538B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5925966B2 (en) | 2013-08-01 | 2016-05-25 | 富士フイルム株式会社 | Imaging device |
| CN110392200B (en) | 2018-04-20 | 2021-01-26 | 杭州海康威视数字技术股份有限公司 | Method and apparatus for auto-focusing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05241066A (en) * | 1992-02-26 | 1993-09-21 | Olympus Optical Co Ltd | Autofucusing device |
| JP4563643B2 (en) * | 2002-06-20 | 2010-10-13 | 株式会社ニコン | Microscope focus detection apparatus and microscope equipped with the same |
| EP1679546B1 (en) * | 2005-01-07 | 2014-12-24 | Canon Kabushiki Kaisha | Focus control method and focus control apparatus |
| JP2008225140A (en) * | 2007-03-14 | 2008-09-25 | Fujifilm Corp | Lens moving device and digital camera |
| JP2012093409A (en) * | 2010-10-25 | 2012-05-17 | Ricoh Co Ltd | Image-pickup device and image-pickup method |
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