| 摘要 |
<p>The invention relates to an optical pickup and an optical disk apparatus applicable to, for example, an optical disk apparatus adapted to access a high-density recorded optical disk (5), so as to realize a simplified structure capable of preventing any characteristic deterioration of a focus error signal caused by horizontal deviation. An optical path length difference generator means (39) is disposed in an optical path to produce an optical path difference between two luminous fluxes obtained through resolution of return light (L2). <IMAGE></p> |
