Imaging apparatus

摘要

A focus detection apparatus includes the following: a viewing field mask disposed more on a photoelectric conversion element side than an expected imaging plane of an imaging lens and configured to determine contours of optical images formed on a detection plane, a sensor including a photoelectric conversion element disposed extending outside the optical images and including a plurality of pairs of focus detection regions in each of which the optical images are detected, a memory configured to store, as adjustment values, pieces of data indicating positions of effective ranges in the pairs of focus detection regions, in a plurality of storage areas in a way that each of the pieces of data is stored in a corresponding one of the storage areas, and a control unit configured to obtain the adjustment value data from the memory and perform focus detection for the imaging lens to control focus adjustment operation.

主权项

1. An imaging apparatus comprising a focus detection apparatus configured to split a light flux having passed through an exit pupil of an imaging optical system into a plurality of light fluxes corresponding to different regions of the exit pupil and form a plurality of optical images with the plurality of light fluxes by using optical members, perform photoelectric conversion on each of the plurality of optical images, and then perform focus detection of the imaging optical system, wherein the focus detection apparatus comprises:
a viewing field mask configured to determine contours of the plurality of optical images; a sensor including a plurality of pairs of focus detection regions in each of which the plurality of optical images is detected, wherein in the focus detection regions, there is a plurality of photoelectric conversion portions in line; a memory configured to store, as adjustment values, a plurality of pieces of data indicating positions of the photoelectric conversion portion corresponding to effective ranges in the plurality of pairs of focus detection regions, in a plurality of storage areas in such a way that each of the plurality of pieces of data is stored in a corresponding one of the plurality of storage areas; and a controller configured to control focus adjustment by detecting a focusing state of the imaging optical system from signals detected by the sensor in the effective ranges of the plurality of pairs of focus detection regions based on the adjustment values obtained from the memory.