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MULTI-FOCUS IMAGE PHOTOGRAPH METHOD, MULTI-FOCUS IMAGE PHOTOGRAPH DEVICE AND DIGITAL PEN
MULTI-FOCUS IMAGE PHOTOGRAPH METHOD, MULTI-FOCUS IMAGE PHOTOGRAPH DEVICE AND DIGITAL PEN
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机译：多焦点图像摄影方法，多焦点图像摄影装置和数字笔
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摘要
PROBLEM TO BE SOLVED: To provide a multi-focus image photograph method and device that allow an in-focus image to be always obtained without depending upon a change in distance between an imaging device and a subject.;SOLUTION: An image pickup element 11 and an image formation lens 12 are positioned so as to focus on a subject P1 at a prescribed distance A0. Between the subject and the image formation lens 12, mirrors B1 and B2 are disposed that fold an optical path. For the subject P1 located at a position of the distance A0, out of images formed by the image pickup element 11, a part of an image formed through an optical path A is selected, while for a subject P3 located at a position of a shorter distance B0 than the distance A0, out of the images formed on the image pickup element 11, by selecting a part of an image formed through an optical path B passing though the mirrors B1, B2 and the image formation lens 12 is selected, and a sharper image can be obtained.;COPYRIGHT: (C)2015,JPO&INPIT
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