| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an imaging device for improving the accuracy of focus detection even without preparing reference data in advance. <P>SOLUTION: The imaging device includes: an imaging element having a focus detection sensor for receiving a pair of luminous fluxe from different regions of an exit pupil through a microlens, and an imaging sensor for receiving luminous flux from the exit pupil through the microlens; a deviation amount calculating part for calculating an image deviation amount showing deviation between an image shown by a first signal and a second signal output by the focus detection sensor in accordance with the pair of respective luminous flux and an image shown by a third signal output by an imaging sensor arranged near the focus detection sensor in accordance with the luminous flux; a signal correcting part for calculating a correction value for correcting signal levels of the first signal and the second signal to a signal level based on the third signal from the image deviation amount, the third signal, the first signal and the second signal; and an AF control part for calculating a defocus amount by using a first correction signal and a second correction signal obtained by correcting the first signal and the second signal on the basis of the calculated correction value. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
