Invention Grant
US08384821B2 Apparatus, method, and program product for autofocus including a contrast obtaining unit that obtains a focus contrast and a control unit that controls a focus lens according to the focus contrast
有权
用于自动对焦的装置，方法和程序产品，包括获得聚焦对比度的对比度获取单元和根据聚焦对比度控制聚焦透镜的控制单元
- Patent Title: Apparatus, method, and program product for autofocus including a contrast obtaining unit that obtains a focus contrast and a control unit that controls a focus lens according to the focus contrast
- Patent Title (中): 用于自动对焦的装置，方法和程序产品，包括获得聚焦对比度的对比度获取单元和根据聚焦对比度控制聚焦透镜的控制单元
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Application No.: US12801653Application Date: 2010-06-18
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Publication No.: US08384821B2Publication Date: 2013-02-26
- Inventor: Hiromi Takeda , Takeshi Ohtsuki
- Applicant: Hiromi Takeda , Takeshi Ohtsuki
- Applicant Address: JP Kawasaki-shi, Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kawasaki-shi, Kanagawa
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2009-199412 20090831
- Main IPC: H04N5/232
- IPC: H04N5/232
Abstract:
An exemplary embodiment of the present invention is an autofocus method that includes moving a focus lens according to an image signal generated from an image of a subject formed by an imaging optical system with a focus lens, obtaining a focus contrast of each of multiple image signals generated in a case of moving a position of the focus lens; and determining a moving direction of the focus lens according to the multiple obtained focus contrasts in response to a focus instruction.
Public/Granted literature
- US20110050983A1 Apparatus, method, and program product for autofocus Public/Granted day:2011-03-03
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