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AUTO-FOCUSING DEVICE CAPABLE OF EXECUTING AN AUTO FOCUSING PROCESS BY USING AN EYE EXAMINATION RING IMAGE WHICH IS PHOTOGRAPHED IN AN OPTICAL DETECTOR, AND A METHOD THEREOF
AUTO-FOCUSING DEVICE CAPABLE OF EXECUTING AN AUTO FOCUSING PROCESS BY USING AN EYE EXAMINATION RING IMAGE WHICH IS PHOTOGRAPHED IN AN OPTICAL DETECTOR, AND A METHOD THEREOF
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机译:能够通过在光学检测器中进行照相的眼检环图像来执行自动对焦过程的自动对焦装置及其方法
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摘要
PURPOSE: An auto-focusing device and a method thereof are provided to calculate the moving direction and the moved amount of an eye examination device by comparing the eye examination average diameter when a diaphragm is not used and the diameter when the diaphragm is used.;CONSTITUTION: An optical detector takes a photograph of an eye examination ring image reflected from the cornea. An iris diaphragm(30) secluding the ambient light is driven with a motor(40). A beam splitter mirror(60) is installed in the front of the iris diaphragm. The eye examination ring image transmitted from the beam splitter mirror is photographed in an optical detector(20).;COPYRIGHT KIPO 2011
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