Patent ID: 9354056
Filing Date: 2016-05-31
CPC Classification: G01C

Claim Text:
1. A distance measurement apparatus comprising: an imaging lens configured to form an image of an object; a solid-state image sensor configured to acquire an image based on light flux passing through a plurality of areas different from each other in an exit pupil of the imaging lens; and a calculation unit configured to calculate a distance based on a signal acquired from the solid-state image sensor, wherein the calculation unit comprises: a processing unit configured to acquire a first signal in a first imaging condition by using the solid-state image sensor; a processing unit configured to acquire a second signal in a second imaging condition different from the first imaging condition by using the solid-state image sensor; and a processing unit configured to calculate a base length which is an interval between the plurality of areas in the exit pupil and a distance based on the first signal and the second signal.