The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
May. 23, 2017
Olympus Corporation, Hachioji-shi, Tokyo, JP;
Satoru Ito, Komae, JP;
Olympus Corporation, Tokyo, JP;
Abstract
An image pickup apparatus includes a first focus detection circuit configured to calculate an evaluation value indicative of a contrast based on an image pickup signal output by an image pickup device, a second focus detection circuit configured to perform focus detection based on phase difference detection to output a defocus amount of an image-acquiring optical system including a focus lens, and a control circuit configured to control a focusing operation of detecting a position of the focus lens where the evaluation value is indicative of an extreme value based on an output from the first focus detection circuit. Based on the defocus amount output by the second focus detection circuit, the control circuit controls initial position driving of the focus lens executed before the focusing operation is performed.