| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem, with respect to an optical pickup device, of intensity distribution variance of the beam emitted from an objective lens, or that the beam reflected from an optical recording medium cannot be led to a designated part of an optical detection means. <P>SOLUTION: Without using a laser holder of unique shape, and the like, a central axis of the beam intensity distribution of a laser beam source is tilted in order to approximately align with an optical central axis of a second condensing element, and the above second condensing element is finely moved in radius direction for the above optical recording medium and arranged. <P>COPYRIGHT: (C)2007,JPO&INPIT |
