发明名称 |
Apparatus for recording angular multiplexed pits |
摘要 |
An apparatus for recording angular multiplexed pits on optical recording media using a device for generating a light beam with an asymmetric intensity distribution is described. The device for generating a light beam with an asymmetric intensity distribution has at least one light influencing part for introducing a phase shift of 180° in a first half of the light beam relative to the second half of the light beam, wherein the border between the first half of the light beam and the second half of the light beam is rotatable around an optical axis of the light beam.
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申请公布号 |
US2006120257(A1) |
申请公布日期 |
2006.06.08 |
申请号 |
US20050288565 |
申请日期 |
2005.11.29 |
申请人 |
THOMSON LICENSING |
发明人 |
KNITTEL JOACHIM;RICHTER HARTMUT;KNAPPMANN STEPHAN |
分类号 |
G11B7/24;G11B7/125;G11B7/135;G11B7/24088 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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