JP2006119222A5 - - Google Patents
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- JP2006119222A5 JP2006119222A5 JP2004304739A JP2004304739A JP2006119222A5 JP 2006119222 A5 JP2006119222 A5 JP 2006119222A5 JP 2004304739 A JP2004304739 A JP 2004304739A JP 2004304739 A JP2004304739 A JP 2004304739A JP 2006119222 A5 JP2006119222 A5 JP 2006119222A5
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- distance
- focus
- signal
- distance information
- focal length
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Claims (11)
前記撮像光学系を介して形成される光学像から映像信号を出力する信号処理手段と、
前記フォーカスレンズを駆動させるフォーカスレンズ駆動手段と、
前記ズームレンズを駆動させるズームレンズ駆動手段と、
前記ズームレンズの位置から焦点距離値を検出する焦点距離検出手段と、
主被写体の距離を測定する複数の距離測定手段と、
複数の前記距離測定手段により測定された各距離値と、前記焦点距離検出手段により検出された前記焦点距離値とに基づいて、前記主被写体の距離情報を算出する距離情報算出手段と、
前記信号処理手段から出力された前記映像信号から焦点信号を検出する焦点信号検出手段と、
前記距離情報算出手段により算出された前記距離情報と、前記焦点信号検出手段により検出された前記焦点信号とに基づいて、前記フォーカスレンズを制御するフォーカス制御手段と
を備えることを特徴とする撮像装置。 An imaging optical system including a zoom lens and a focus lens;
Signal processing means for outputting a video signal from an optical image formed via the imaging optical system;
Focus lens driving means for driving the focus lens;
Zoom lens driving means for driving the zoom lens;
A focal length detection means for detecting a focal length value from the position of the zoom lens;
A plurality of distance measuring means for measuring the distance of the main subject;
Distance information calculating means for calculating distance information of the main subject based on each distance value measured by the plurality of distance measuring means and the focal distance value detected by the focal distance detecting means;
Focus signal detection means for detecting a focus signal from the video signal output from the signal processing means;
An imaging apparatus comprising: a focus control unit that controls the focus lens based on the distance information calculated by the distance information calculation unit and the focus signal detected by the focus signal detection unit. .
前記撮像光学系を介して形成される光学像から映像信号を出力する信号処理手段と、
前記フォーカスレンズを駆動させるフォーカスレンズ駆動手段と、
前記ズームレンズを駆動させるズームレンズ駆動手段と、
前記ズームレンズの位置から焦点距離値を検出する焦点距離検出手段と、
主被写体の距離値を測定する複数の距離測定手段と、
前記焦点距離検出手段により検出された前記焦点距離値に基づいて、複数の前記距離測定手段のうちの少なくとも１つを選択する選択手段と、
選択された前記距離測定手段により測定された前記距離値に基づいて、前記主被写体の距離情報を算出する距離情報算出手段と、
前記信号処理手段から出力された前記映像信号から焦点信号を検出する焦点信号検出手段と、
前記距離情報算出手段により算出された前記距離情報と、前記焦点信号検出手段により検出された前記焦点信号とに基づいて、前記フォーカスレンズを制御するフォーカス制御手段と
を備えることを特徴とする撮像装置。 An imaging optical system including a zoom lens and a focus lens;
Signal processing means for outputting a video signal from an optical image formed via the imaging optical system;
Focus lens driving means for driving the focus lens;
Zoom lens driving means for driving the zoom lens;
A focal length detection means for detecting a focal length value from the position of the zoom lens;
A plurality of distance measuring means for measuring the distance value of the main subject;
Selecting means for selecting at least one of the plurality of distance measuring means based on the focal distance value detected by the focal distance detecting means;
Distance information calculating means for calculating distance information of the main subject based on the distance value measured by the selected distance measuring means;
Focus signal detection means for detecting a focus signal from the video signal output from the signal processing means;
An imaging apparatus comprising: a focus control unit that controls the focus lens based on the distance information calculated by the distance information calculation unit and the focus signal detected by the focus signal detection unit. .
複数の距離測定手段により、主被写体の距離値をそれぞれ測定するステップと、
測定された前記距離値と、検出された前記焦点距離値とに基づいて、前記主被写体の距離情報を算出するステップと、
撮像光学系を介して形成される光学像に基づく映像信号から焦点信号を検出するステップと、
算出された前記距離情報と、検出された前記焦点信号とに基づいて、フォーカスレンズを制御するステップと
を含むことを特徴とする撮像方法。 Detecting a focal length value from the position of the zoom lens;
Measuring each of the distance values of the main subject by a plurality of distance measuring means;
Calculating distance information of the main subject based on the measured distance value and the detected focal length value;
Detecting a focus signal from a video signal based on an optical image formed via an imaging optical system;
An imaging method comprising: controlling a focus lens based on the calculated distance information and the detected focus signal.
検出された前記焦点距離値に基づいて、複数の距離測定手段のうちの少なくとも１つを選択するステップと、
選択された前記距離測定手段により距離値を測定するステップと、
測定された前記距離値と、検出された前記焦点距離値とに基づいて、主被写体の距離情報を算出するステップと、
撮像光学系を介して形成される光学像に基づく映像信号から焦点信号を検出するステップと、
算出された前記距離情報と、検出された前記焦点信号とに基づいて、フォーカスレンズを制御するステップと
を含むことを特徴とする撮像方法。 Detecting a focal length value from the position of the zoom lens;
Selecting at least one of a plurality of distance measuring means based on the detected focal length value;
Measuring a distance value by the selected distance measuring means;
Calculating distance information of a main subject based on the measured distance value and the detected focal length value;
Detecting a focus signal from a video signal based on an optical image formed via an imaging optical system;
An imaging method comprising: controlling a focus lens based on the calculated distance information and the detected focus signal.
前記距離情報は複数の距離測定手段による測定に基づくとともに、当該複数の距離検出手段はそれぞれ焦点距離に応じて異なる有効計測距離が規定されていることを特徴とする撮像装置。 At least one of a focus signal based on an output signal from a signal output unit that outputs a signal according to an optical image formed via an imaging optical system including a zoom lens and a focus lens, and calculated distance information Control means for adjusting the focus by controlling the imaging optical system based on,
The distance information is based on measurement by a plurality of distance measuring means, and each of the plurality of distance detecting means has a different effective measurement distance defined according to a focal length.
前記距離情報は複数の距離測定手段による測定に基づくとともに、当該複数の距離検出手段はそれぞれ焦点距離に応じて視野角を変えて配置されていることを特徴とする撮像装置。 At least one of a focus signal based on an output signal from a signal output unit that outputs a signal according to an optical image formed via an imaging optical system including a zoom lens and a focus lens, and calculated distance information Control means for adjusting the focus by controlling the imaging optical system based on,
The distance information is based on measurements by a plurality of distance measuring means, and the plurality of distance detecting means are arranged with different viewing angles according to focal lengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004304739A JP2006119222A (en) | 2004-10-19 | 2004-10-19 | Imaging apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004304739A JP2006119222A (en) | 2004-10-19 | 2004-10-19 | Imaging apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006119222A JP2006119222A (en) | 2006-05-11 |
| JP2006119222A5 true JP2006119222A5 (en) | 2007-11-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004304739A Pending JP2006119222A (en) | 2004-10-19 | 2004-10-19 | Imaging apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2006119222A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008026802A (en) * | 2006-07-25 | 2008-02-07 | Canon Inc | Imaging apparatus |
| JP4914143B2 (en) * | 2006-08-07 | 2012-04-11 | キヤノン株式会社 | Optical equipment |
| US8934766B2 (en) | 2010-05-25 | 2015-01-13 | Canon Kabushiki Kaisha | Image pickup apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63291043A (en) * | 1987-05-25 | 1988-11-28 | Canon Inc | Automatic focusing device |
| JP2001221945A (en) * | 2000-02-08 | 2001-08-17 | Ricoh Co Ltd | Automatic focusing device |
| JP4731705B2 (en) * | 2001-03-02 | 2011-07-27 | キヤノン株式会社 | Imaging apparatus, camera, photographing lens, focus adjustment method, and storage medium |
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- 2004-10-19 JP JP2004304739A patent/JP2006119222A/en active Pending
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