Patent ID: 9398206
Filing Date: 2016-07-19
CPC Classification: H04N

Claim Text:
1. A focus adjustment apparatus that, based on imaging signals obtained by causing an imaging unit to pick up an optical image of an object formed via a photographing optical system including a focus lens, adjusts a position of the focus lens, the apparatus comprising: a read out control unit that performs control so that, in parallel with an operation of reading out first imaging signals from the imaging unit at a predetermined frame rate, second imaging signals are read out from the imaging unit at a frame rate that is higher than the predetermined frame rate, the number of the second imaging signals being smaller than the number of the first imaging signals; a generation unit that generates a first focus signal using the first imaging signals and that generates a second focus signal using the second imaging signals; and a control unit that performs control so that a first focus adjustment that adjusts the position of the focus lens based on the first focus signal is performed if it is determined that the focus lens is near an in-focus position, and so that a second focus adjustment that adjusts the position of the focus lens based on the second focus signal is performed if it is determined that the focus lens is not near the in-focus position.