| 摘要 |
In an objective lens driving device (100) having a lens holder (20) which is movable and holds an objective lens (30), coil devices (4,16) are disposed around the objective lens and held by the lens holder. Around the objective lens, main magnets (1) are disposed for applying driving forces to the coil devices according to energization to the coil devices. Furthermore, each of auxiliary magnets (2) are disposed between adjacent ones of the coil devices. The auxiliary magnets apply forces to the coil devices according to the energization to the coil devices for supplementing the driving forces.
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