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Application filed by Tong-Feng ChuangfiledCriticalTong-Feng Chuang
Priority to TW094114608ApriorityCriticalpatent/TW200639556A/en
Publication of TW200639556ApublicationCriticalpatent/TW200639556A/en
An auto focusing device, comprising an image sensor base and an image sensor is setting on it. A lens holder with plurality grooves sets on the image sensor base. A lens barrel with plurality guilders fitting the lens holder's grooves and plurality barrel stoppers sets on the lens holder. A spring sets on the barrel stoppers. An optical system sets inside the lens barrel. A magnetic generator A sets on the lens barrel and a magnetic generator B sets opposite to the magnetic generator A for a distance.
TW094114608A2005-05-062005-05-06An auto focusing device
TW200639556A
(en)