Focus-controlling apparatus and photographing apparatus
AssigneeOlympus Corporation
InventorHitoshi TSUCHIYA
Life of this patent
Estimating the term…
Abstract
A focus-controlling apparatus adjusts a focus in an optical system. The apparatus includes a focus detecting unit, a storage unit, a focus area switching unit, and a drive control unit. The focus detecting unit detects de-focusing amounts of the optical system with respect to a plurality of objects that lie in a plurality of focus areas, respectively. The storage unit stores the de-focusing amounts detected for the respective focus areas. The focus area switching unit switches the focus areas, from one to another, in an order based on the de-focusing amounts stored in the storage unit. The drive control unit moves the optical system to a focus position corresponding to the de-focusing amount at any focus area switched by the focus area switching unit.
Claims24
A focus-controlling apparatus for adjusting a focus in an optical system, the apparatus comprising:
- a focus detecting unit which detects de-focusing amounts of the optical system with respect to a plurality of objects that lie in a plurality of focus areas, respectively;
- a storage unit which stores the de-focusing amounts detected for the respective focus areas;
- a focus area switching unit which switches the focus areas, from one to another, in an order based on the de-focusing amounts stored in the storage unit;
- and
- a drive control unit which moves the optical system to a focus position corresponding to the de-focusing amount at any focus area switched by the focus area switching unit.
Dependencies are inferred from the claim text.