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:
Aug. 19, 2014
Filed:
Jul. 10, 2012
Keigo Matsuo, Kunitachi, JP;
Hisashi Goto, Tokyo, JP;
Yoshikazu Ichikawa, Hachioji, JP;
Ryuhi Okubo, Asaka, JP;
Hiroshi Takase, Hachioji, JP;
Toshio Takahashi, Hachioji, JP;
Daichi Murakami, Hachioji, JP;
Keigo Matsuo, Kunitachi, JP;
Hisashi Goto, Tokyo, JP;
Yoshikazu Ichikawa, Hachioji, JP;
Ryuhi Okubo, Asaka, JP;
Hiroshi Takase, Hachioji, JP;
Toshio Takahashi, Hachioji, JP;
Daichi Murakami, Hachioji, JP;
Olympus Imaging Corp., , JP;
Olympus Corporation, , JP;
Abstract
An image pickup apparatus includes: an image pickup device that includes a pixel used for focus detection, a plurality of the pixels being arranged in a matrix; a correction memory that stores correction information used for correcting a difference in amounts of received light that depend on pixel positions of the pixels used for focus detection; a correcting section that reads the correction information to correct a pixel value of the pixel used for focus detection; and a focus detecting section that detects a focal point by using the pixel value corrected by the correcting section. Focus accuracy is increased by correcting the pixel value for an AF pixel depending on the pixel position.