Patent ID: 9277115
Filing Date: 2016-03-01
CPC Classification: H04N

Claim Text:
1. An image pickup apparatus comprising: a focus adjustment unit configured to perform a focus adjustment by moving a focus lens on the basis of an image pickup signal obtained by an image pickup unit; a read-out unit configured to parallelly read out the image pickup signal obtained in a period set according to a timing signal for setting a first exposure period and the image pickup signal obtained in a period set according to a timing signal for setting a second exposure period from the image pickup unit by shifting the timing signal for setting the first exposure period and the timing signal for setting the second exposure period from each other in phase; an evaluation unit configured to obtain a focus evaluation value from the image pickup signal which is obtained in the exposure period set according to the timing signal; and a position determination unit configured to determine a position of the focus lens corresponding to the obtained focus evaluation value on the basis of a position of the focus lens at the time when the image pickup signal is read out according to the timing signal for setting the first exposure period and a position of the focus lens at the time when the image pickup signal is read out according to the timing signal for setting the second exposure period.