Patent ID: 9386215
Filing Date: 2016-07-05
CPC Classification: G01B,G01S,G02B,G03B

Claim Text:
1. A device for measuring distances to two subjects comprising: an imaging optical system including a lens divided into two physically-separated lens parts, two regions of the imaging optical system each having an independent focusing distance corresponding to a combination of the two physically-separated lens parts; a pupil orientation sensor having multiple pixels including photoelectric conversion elements arranged two-dimensionally, the pupil orientation sensor selectively receiving a light flux passed through any of the two regions; an image acquisition processor that simultaneously acquires each of two images corresponding to the two regions from the pupil orientation sensor; a focusing control processor that independently drives the two physically-separated lens parts of the imaging optical system on the basis of the two images acquired by the image acquisition processor to control the two physically-separated lens parts to be focused on two subjects each having a different focusing distance; and a first calculation processor that calculates each of the focusing distances to the two subjects respectively subjected to focusing control by the focusing control processor.