| 摘要 |
The present invention relates to a beam shaper (9) and to an apparatus for reading from and/or writing to optical storage media (11) using in such a beam shaper (9). According to the invention, a beam shaper (9) for generating a first shaped light beam (7) from an incoming light beam (3) has a beam shaping element (22, 30) with an optical property that varies spatially over the profile of the incoming light beam (3). |
