| 摘要 |
PROBLEM TO BE SOLVED: To provide an objective lens driving device, by which a tilt is adjustable with high sensitivity when the tilt driving is allowed, while being excellent in the stability of the focus driving operation. SOLUTION: A lens holder 2 for holding the objective lens 1 is movably supported in at least the focus direction through conductive springs 10 etc., and magnet couple 4a, 4b are arranged on the substrate 9 by facing oppositely. At this time, a magnet 12 (3rd magnet) for correction is arranged facing oppositely with one 4a (1st magnet) of magnets for driving, and a coil 5 is prepared between this correction magnet 12 and the driving magnet 4a, and another one 4b (2nd magnet) of driving magnets is arranged inside a winding of the coil 5. COPYRIGHT: (C)2005,JPO&NCIPI
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