CONTROL DEVICE, CONTROL METHOD, COMPUTER PROGRAM, AND ELECTRONIC DEVICE

To provide a control device for effectively determining a lens position even in a case where a subject close to an image capturing device and a subject far from the image capturing device simultaneously exist in a region for detecting phase difference between subject images.SOLUTION: Provided is a control device including: a calculation unit for calculating, on the basis of a result of capturing a subject image passed through a focus lens by using an imaging element including a plurality of phase difference detection regions, a focus position of each of the phase difference detection regions; and a determination unit for determining a position of the focus lens on the basis of the focus position on an infinity side or a close side if the number of the phase difference detection regions whose focal point position deviates from the focal point position of the phase difference detection region which is a reference by a predetermined range or more exceeds a predetermined value.SELECTED DRAWING: Figure 1 【課題】被写体像の位相差を検出する領域に撮像装置から近い被写体と遠い被写体とが同時に存在していてもレンズ位置を効果的に決定する制御装置を提供する。【解決手段】位相差検出領域を複数含む撮像素子による、焦点レンズを通過する被写体像の撮像結果に基づいて各前記位相差検出領域に対して焦点位置を算出する算出部と、基準となる前記位相差検出領域の前記焦点位置から、焦点位置が所定の範囲以上外れている前記位相差検出領域の数が所定値を上回れば、無限遠側または至近側にある前記焦点位置に基づき前記焦点レンズの位置を決定する決定部と、を備える、制御装置が提供される。【選択図】図１