FOCUS ADJUSTMENT UNIT AND CAMERA SYSTEM

摘要

A focus adjustment unit according to the present invention has an imaging section configured to generate an image signal by forming and capturing an optical image on an image sensor by an optical system including a focusing lens, and performs focus adjustment based on a focus detection signal relating to a focus detection area set within an imaging area, the focus adjustment unit comprising a focusing lens position detection section configured to detect a position of the focusing lens, a storage section configured to store information on an image magnification change of the optical system along with movement of the focusing lens, and a focus detection area setting section configured to set a focus detection area within the imaging area, wherein the focus detection area setting section sets the focus detection area based on the position of the focusing lens and the information on an image magnification change.

主权项

1. A focus adjustment unit having an imaging section configured to generate an image signal by forming and capturing an optical image on an image sensor by an optical system including a focusing lens, for performing focus adjustment based on a focus detection signal relating to a focus detection area set within an imaging area, the focus adjustment unit comprising:
a focusing lens position detection section configured to detect a position of the focusing lens; a storage section configured to store information on an image magnification change of the optical system along with the movement of the focusing lens; and a focus detection area setting section configured to set a focus detection area within the imaging area, wherein the focus detection area setting section sets the focus detection area based on the position of the focusing lens and the information on an image magnification change.