| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an objective lens actuator improved so that an unnecessary resonance frequency shifts to a lower frequency range than a range around 3 kHz by making minimum alterations of a conventional objective lens actuator. <P>SOLUTION: In the objective lens actuator, a lens holder 1e holding an objective lens 1L is supported movably by a plurality of parallel wires 1d projecting forward from both side parts of a wire holding member 1b, and control coils 1j, 1k, etc., attached to the lens holder 1e and a wire 1d are electrically connected; and a wiring board 1h having a land part for conduction confirmation is attached to a rear face of the wire holding member 1b, and a rear end of the wire 1d is connected and fixed to the wiring board 1h. The land part for conduction confirmation of the wiring board 1h is changed to a through hole 1t. The change to the through hole 1t lowers the rigidity of the wiring board 1h to shift the unnecessary resonance frequency to the low frequency range. <P>COPYRIGHT: (C)2012,JPO&INPIT |
