| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical pickup device having two objective lenses disposed corresponding to optical disks of different standards. <P>SOLUTION: First and second objective lenses are both fixed on a lens holder so that in a state where a condensing operation is performed on a first signal recording layer formed on a first optical disk by the first objective lens, the level of a laser light applied through the second objective lens to the first signal recording layer and applied as a stray light to a photodetector 18 is set so as not to affect a focus control operation on the first signal recording layer. <P>COPYRIGHT: (C)2010,JPO&INPIT |
