Patent ID: 7728903
Filing Date: 2010-06-01
Classification: G03B

Abstract:
1. A focus adjustment device, comprising: an image sensor that captures a subject image; a first focus detection unit that detects a focus adjustment state of the subject image on the image sensor in a first focusing area; a second focus detection unit that detects a focus adjustment state of the subject image on the image sensor in a second focusing area through a method different from a method adopted by the first focus detection unit; a judgment unit that makes a judgment as to whether or not the first focusing area and the second focusing area have a specific positional relationship; a focus adjustment unit that executes focus adjustment of the subject image on the image sensor by using both successful focus detection results obtained via the first focus detection unit and successful focus detection results obtained via the second focus detection unit when the judgment unit decides that the first focusing area and the second focusing area have the specific positional; and the specific positional relationship being one of a positional relationship in which the first focusing area and the second focusing area at least partially overlap and a positional relationship in which the first focusing area and the second focusing area are present in close proximity to each other.