| 摘要 |
PROBLEM TO BE SOLVED: To provide a distance calculation device capable of calculating a subject distance with high accuracy regardless of a subject, an imaging apparatus using the same, a distance calculation method, and the like.SOLUTION: A distance calculation device 110 detects a subject distance to a subject on the basis of a first subject signal by a light flux having passed through a first pupil area of an image formation optical system 120, and a second subject signal by a light flux having passed through a second pupil area, which are generated by using an imaging element 101 constituted by a plurality of disposed pixels. The imaging element includes a first photoelectric conversion part 161 and a second photoelectric conversion part 162, wherein the first photoelectric conversion part generates the first subject signal; the second photoelectric conversion part generates the second subject signal; and the first pupil area and the second pupil area have asymmetrical pupil shapes in an exit pupil 104 of the image formation system. A subject distance calculation part 102 detects the subject distance by a DFD (Depth-from-defocus) system based on a blur difference between the first subject image signal and the second subject image signal. |
