| 摘要 |
There is provided an objective lens drive for driving an objective lens to optically read information recorded on a rotative driven disc. An objective lens holding member (2) is held by four first metal wires (61) on a relay holding member (71), and the relay holding member (71) is held by four second metal wires (62) on a fixing part (72). The acceleration sensitivity which acts on the objective holding member (2) in different disc rotation frequency bands is increased. The disc rotation frequency bands correspond to different resonance frequency bands created by each of a first free oscillation system, the main part of which is the first metal wires (61), and a second free oscillation system, the main part of which is the second metal wires (62). Thereby, the light spot's following sensitivity to the displacement of an information recording, track can be increased in at least two disc rotation frequency bands.
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