| 摘要 |
A control mechanism (2) includes a medium wavefront aberration correction voltage generating unit (20) and an optical system wavefront aberration correction voltage generating unit (22), and a mechanism that independently corrects a medium wavefront aberration caused by a shape or the like of an optical recording medium and an optical system wavefront aberration caused by an optical system in an optical pickup mechanism (1). Further, it includes a liquid crystal panel (9) as an aberration correcting unit, and is designed to apply voltages corresponding to corrections of the medium wavefront aberration and the optical system wavefront aberration to two transparent electrodes provided in the liquid crystal panel (9). |
