Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 3, 2008
Patent Application Number
10525185
Date Filed
September 28, 2004
Patent Primary Examiner
Patent abstract
An eye image taking device comprises: an imaging unit for taking an eye of a user as an eye image; a focusing degree calculating unit for calculating the magnitude of high-frequency components from the eye image; a threshold setting unit for setting a focusing threshold intrinsic to an authorized user; and a focus deciding unit for deciding a focus by comparing the magnitude of the high-frequency components and the focusing threshold, so that the optimum focusing threshold is set for the authorized user.
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