Patent ID: 9395516
Filing Date: 2016-07-19
CPC Classification: G01J,G02B,G03B,H04N

Claim Text:
1. An imaging device, comprising: a front optical system that transmits light from an object; an optical element array that is constituted by a plurality of optical elements, which is two-dimensionally arrayed along a plane perpendicular to an optical axis, and passes the light from the front optical system via the plurality of optical elements; a small lens array that is constituted by a plurality of small lenses, which is two-dimensionally arrayed along a plane perpendicular to the optical axis and has positive refractive power, that transmits the light from the plurality of optical elements via the plurality of small lenses respectively, and that forms a plurality of object images; a picture element that has an imaging plane on focal planes of the plurality of small lenses, and captures the plurality of object images respectively; and an image processor that determines information on the object images according to optical characteristics of the optical elements, based on image signals output from the picture element, the front optical system transmitting the light from the focused object to collimate the light into a parallel luminous flux, wherein the front optical system includes a focusing lens group executing focusing operation from an obiect at infinity onto an obiect at a finite distance by moving along the optical axis, and transmits the light from the focused object to collimate the light into a parallel luminous flux.