发明名称 |
OPTICAL SYSTEM WITH INTERACTIVE DATA CAPABILITY |
摘要 |
<p>Methods and apparatus are provided for retrieving encoded information from data tracks on an optical disk using an array of microlasers as the illumination sources, an array of micro-scale photo detectors as the detection elements, and a bilens (BL) as the main optical component. Multiple configurations are provided to position microlasers and photo detectors together on a mobile laser/detector block (LDB). Laser beams generated by the surface-emitting microlasers are guided by the BL onto the optical disk (OD) surface. The reflected light is collected by the same BL, shifted, and then directed back onto the respective photo detectors on the LDB. Illumination, detection and alignment methods and apparatus for tracking, focusing, and magnification servo controls are also incorporated on the LDB.</p> |
申请公布号 |
EP1131818(A1) |
申请公布日期 |
2001.09.12 |
申请号 |
EP19990958943 |
申请日期 |
1999.11.12 |
申请人 |
NEW DIMENSION RESEARCH & INSTRUMENT, INC. |
发明人 |
HANG, ZHIJIANG;LAZAREV, VICTOR |
分类号 |
G02B13/00;G02B3/08;G02B3/10;G11B7/09;G11B7/12;G11B7/125;G11B7/13;G11B7/135;G11B7/14;H01L31/10;H01S5/026;H01S5/42;(IPC1-7):G11B7/00 |
主分类号 |
G02B13/00 |
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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