Patent ID: 9658367
Date: 2017-05-23
CPC Classifications: G02B,H04N

Claim:
1. An image acquisition apparatus comprising: an image acquisition lens that focuses light from a subject; an imaging device that detects an image signal by capturing the light focused by the image acquisition lens; and a microlens array that is provided between the imaging device and the image acquisition lens so that there is a space, in the direction of an optical axis, between the microlens array and a focal plane of the image acquisition lens, wherein a space is provided, in the direction of the optical axis, between the microlens array and the imaging device, and wherein the microlens array is formed by setting, in an array in a direction intersecting the optical axis, a plurality of microlenses that each re-form a first image that has been formed in the focal plane by the image acquisition lens into a second image on an imaging plane of the imaging device and that are of two or more types having an identical focal distance and different effective diameters.