Patent Number: 6,311,019

Title: Automatic focus adjusting system capable of adjusting focus of moving subject

Abstract: An automatic focus adjusting apparatus includes an image move-amount detecting section, an image position predicting section and a control section. The image move-amount detecting section detects, for each of a pair of images of a subject divided in a predetermined direction, image positions of the subject in an image-divided direction and in a direction approximately orthogonal with this image-divided direction respectively on photoelectric conversion elements at mutually different first and second times respectively, and obtains move amounts of the images of the subject in the image-divided direction based on a result of this detection. The image position predicting section predicts an image position of the subject in an image-divided direction at a third time different from the first and second times, based on an output from the image move-amount detecting section. The control section carries out a focus adjustment so that the image of the subject is in focus at the third time, based on an output from the image position predicting section.

Inventors: Ide; Masataka (Hachioji, JP)

Assignee: Olympus Optical Co., Ltd.

International Classification: G02B 7/34 (20060101); G03B 13/36 (20060101); G03B 013/36 ()

Expiration Date: 10/30/2018