| 摘要 |
PROBLEM TO BE SOLVED: To provide a beam shaper for an optical storage system. SOLUTION: A device includes a beam shaper 9 and reads from and/or writes to an optical storage media 11 by using the beam shaper 9. The beam shaper 9 for generating a first shaped light beam 7 from an incident light beam 3 has a beam shaping elements 22 and 30 with an optical property that varies spatially over the profile of the incident light beam 3. COPYRIGHT: (C)2009,JPO&INPIT |
