焦点検出装置、焦点調節装置および撮像装置

Focus detection device, focusing device, and image pickup device

Abstract

【課題】主要被写体の焦点状態を適切に検出することができる焦点検出装置を提供すること。 【解決手段】光学系の像面内の複数の位置に設定された複数の焦点検出位置に対して、前記光学系の焦点状態を検出する焦点検出手段161と、前記像面内における対象を検出する対象検出手段170と、前記焦点検出手段による焦点状態の検出結果、および前記対象検出手段による検出結果の少なくとも一方に基づいて、前記複数の焦点検出位置のうちのいずれかを選択する選択手段170とを備え、前記選択手段は、前記対象検出手段により前記対象を検出したか否かに応じて異なる基準によって前記焦点検出位置を選択することを特徴とする焦点検出装置。 【選択図】 図1
<P>PROBLEM TO BE SOLVED: To provide a focus detection device appropriately detecting the focus state of a main subject. <P>SOLUTION: The focus detection device is provided with: a focus detection means 161 for detecting a focus state of an optical system for a plurality of focus detection positions set at a plurality of positions in an image plane of the optical system; an object detection means 170 for detecting an object in the image plane; and a selection means 170 for selecting one of the plurality of focus detection positions based on either the result of the focus state detection by the focus detection means or the result of the detection by the object detection means. The selection means selects the focus detection position, based on the different criteria depending on whether the object is detected by the object detection means. <P>COPYRIGHT: (C)2011,JPO&INPIT

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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    JP-2009010672-AJanuary 15, 2009Nikon Corp, 株式会社ニコンFocus detector and image pickup device
    JP-2009033238-AFebruary 12, 2009Nikon Corp, 株式会社ニコン撮像装置

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