JP2009109623A5 - - Google Patents

Claims (5)

(a)撮影光学系の射出瞳における一対の部分領域を通過した被写体光束それぞれを受光する一対の画素に関して、当該一対の画素が所定の方向に沿って２以上配列される焦点検出画素列を有した複数の焦点検出領域が規定される撮像素子と、
(b)露光が行われた焦点検出画素列の出力信号に基づき、位相差検出方式の焦点検出を行う焦点検出手段と
を備え、
前記焦点検出手段は、
(b-1)前記複数の焦点検出領域それぞれにおける前記焦点検出画素列から、所定の露光制御により異なった複数の露光時間での各出力信号を得る制御手段と、
(b-2)前記制御手段によって得られた各力信号に基づき、前記複数の焦点検出領域で前記焦点検出を行う多点検出手段と
を有する撮像装置。 (a) Taking respect a pair of pixels for receiving each subject light flux passing through the pair of partial regions in the exit pupil of the projection optical system, the focus detection pixel row to which the pair of pixels are arranged two or more in a predetermined direction An image sensor in which a plurality of focus detection areas are defined;
(b) exposure on the basis of the output signal that are made focus detection pixel row, includes a <br/> the focus detection means for performing focus detection of a phase difference detection method,
The focus detection means includes
(b-1) From the focus detection pixel row in each of the plurality of focus detection regions, control means for obtaining each output signal at a plurality of different exposure times by predetermined exposure control,
(b-2) based on said respective force signal obtained by the control means, said plurality of focus detection areas in the focus detection multipoint detector means and <br/> that have a imaging device to perform. 前記所定の露光制御は、前記複数の焦点検出領域で前記複数の露光時間それぞれの露光を順次に行う露光制御である請求項１記載の撮像装置。 It said predetermined exposure control, the plurality of focus detection areas in said plurality of exposure times imaging device of each Ru exposure control der sequentially perform exposure according to claim 1, wherein. 前記複数の焦点検出領域それぞれは複数の焦点検出画素列を有するとともに、前記複数の焦点検出画素列では互いに異なる露光時間の設定が可能となっており、
前記所定の露光制御は、前記複数の焦点検出領域それぞれにおいて前記複数の露光時間が設定された前記複数の焦点検出画素列で露光を行う露光制御である請求項１記載の撮像装置。 Each of the plurality of focus detection regions has a plurality of focus detection pixel rows, and the plurality of focus detection pixel rows can be set to different exposure times.
It said predetermined exposure control, the plurality of focus detection areas imaging device of the plurality of Ru exposure control der perform exposure exposure time with the set of the plurality of focus detection pixel row according to claim 1, wherein in each. 前記多点検出手段による焦点検出を行った後の焦点検出は、前記複数の焦点検出領域から選択される１の焦点検出領域で行われ、
前記焦点検出手段は、
(b-3)前記制御手段によって得られた各出力信号に基づき、前記１の焦点検出領域についての適正露光時間を求める手段
をさらに有する請求項１記載の撮像装置。 The focus detection after the focus detection by the multipoint detection means is performed in one focus detection region selected from the plurality of focus detection regions,
The focus detection means includes
(b-3) the control based on the output signals obtained by the means, an imaging apparatus according to claim 1, wherein that further having a hand stage <br/> obtaining a proper exposure time for the focus detection area of the 1 . (a)撮影光学系の射出瞳における一対の部分領域を通過した被写体光束それぞれを受光する一対の画素に関して、当該一対の画素が所定の方向に沿って２以上配列される焦点検出画素列を有した複数の焦点検出領域が規定される撮像素子と、
(b)露光が行われた焦点検出画素列の出力信号に基づき、位相差検出方式の焦点検出を行う焦点検出手段と
を備え、
前記焦点検出手段は、
(b-1)前記複数の焦点検出領域それぞれにおける前記焦点検出画素列から、所定の露出制御により異なった複数の露出値での各出力信号を得る制御手段と、
(b-2)前記制御手段によって得られた各力信号に基づき、前記複数の焦点検出領域で前記焦点検出を行う多点検出手段と
を有する撮像装置。 (a) Taking respect a pair of pixels for receiving each subject light flux passing through the pair of partial regions in the exit pupil of the projection optical system, the focus detection pixel row to which the pair of pixels are arranged two or more in a predetermined direction An image sensor in which a plurality of focus detection areas are defined;
(b) exposure on the basis of the output signal that are made focus detection pixel row, includes a <br/> the focus detection means for performing focus detection of a phase difference detection method,
The focus detection means includes
(b-1) Control means for obtaining each output signal at a plurality of different exposure values by predetermined exposure control from the focus detection pixel row in each of the plurality of focus detection regions;
(b-2) based on said respective force signal obtained by the control means, said plurality of focus detection areas in the focus detection multipoint detector means and <br/> that have a imaging device to perform.