Industrial Technology Research Institute

Lei-Ming Yang

Tzuan-Ren Jeng

Jau-Jiu Ju

Chi-Shen Chang

Shyh-Jier Wang

Chau-Yuan Ke

Chun-Te Wu

Ming-Tsan Peng

Kwen-Jin Lee

Hai-Jo Huang

An optical pickup head and an electromagnetic actuating device thereof are provided. The electromagnetic actuating device is used to move an objective lens carrier having an objective lens assembly to form an optical pickup head. The electromagnetic actuating device includes at least a magnet, at least a coil, and at least a yoke. The magnet is spaced apart from the objective lens carrier by a distance, and the coil is disposed at the objective lens carrier, for generating an electromagnetic force to interact with the magnet. The yoke is spaced apart from the objective lens carrier by a distance, in which the yoke has a protruding part that extends towards the objective lens carrier and is used to attract magnetic flux lines produced by the magnet, and thus making the magnetic flux that passes through the coil be distributed evenly.

Optical pickup head and electromagnetic actuating device thereof

Growing community of inventors

Hsinchu, Taiwan

Lei-Ming Yang