Patent ID: 8836844
Filing Date: 2014-09-16
Classification: G02B,H04N

Abstract:
1. An image pickup apparatus comprising: an imaging optical system; an image pickup element that includes a plurality of pixels; a lens array configured so that a ray from the same position on an object plane enters the pixels different from each other of the image pickup element in accordance with a pupil region of the imaging optical system through which the ray passes; and a controller configured to change an interval between the lens array and the image pickup element in accordance with a variation of a pupil of the imaging optical system, wherein the pupil is an exit pupil of the imaging optical system, wherein the lens array is disposed on a conjugate plane of the imaging optical system with respect to the object plane, and wherein the controller controls the interval between the lens array and the image pickup element so that a second interval in a case where a position of the exit pupil of the imaging optical system is located at a second position that is at an object side relative to a first position is larger than a first interval in a case where the position of the exit pupil of the imaging optical system is located at the first position when an F number of the imaging optical system is constant.