Invention Grant
US08422878B2 Imaging apparatus performing auto focusing function with plurality of band pass filters and auto focusing method applied to the same
失效
具有多个带通滤波器的自动聚焦功能的成像设备和应用于其的自动聚焦方法
- Patent Title: Imaging apparatus performing auto focusing function with plurality of band pass filters and auto focusing method applied to the same
- Patent Title (中): 具有多个带通滤波器的自动聚焦功能的成像设备和应用于其的自动聚焦方法
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Application No.: US13043877Application Date: 2011-03-09
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Publication No.: US08422878B2Publication Date: 2013-04-16
- Inventor: Kyong-Tae Park , Jeong-Won Lee , Kyoung-Hwan Moon
- Applicant: Kyong-Tae Park , Jeong-Won Lee , Kyoung-Hwan Moon
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd
- Current Assignee: Samsung Electronics Co., Ltd
- Current Assignee Address: KR
- Agency: The Farrell Law Firm, P.C.
- Priority: KR10-2010-0025737 20100323
- Main IPC: G03B17/00
- IPC: G03B17/00 ; G03B13/00
Abstract:
An imaging apparatus and an auto focusing method are provided. A plurality of focus signal values are calculated for a plurality of frequency bands of a captured image signal. An amount of defocus of a focus lens is calculated based on focus signal values calculated for two positions. A position of the focus lens is controlled depending on the calculated amount of defocus. Thereby, the imaging apparatus can detect a focus at higher speed.
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