发明名称 |
Recording and reproducing apparatus |
摘要 |
The recording and reproducing apparatus has rotary drive unit (a motor) that rotationally drives a multilayer recordable recording medium 1; a reference-light-side recording and reproducing lens 6 and a recording-light-side recording and reproducing lens 7 that are disposed oppositely to the recording medium 1 which is rotationally driven by the rotary drive unit, an address detection lens 5 that is disposed opposite the recording medium 1 and that is provided separately from the recording and reproducing lenses 6 and 7; a light source 9 for recording and reproducing purpose that supplies recording reproduction light to the recording and reproducing lenses 6 and 7; and the address light source 9 that supplies address light to the address detection lens 5. The apparatus is configured in such a way that light whose center axis portion is optically hollow is supplied from the reference-light-side recording and reproducing lens 6 to the recording medium 1 during reproducing operation. |
申请公布号 |
US8089847(B2) |
申请公布日期 |
2012.01.03 |
申请号 |
US20090550366 |
申请日期 |
2009.08.29 |
申请人 |
INOUE SHOHEI;HORINOUCHI SYOUGO;HORIO HIDEAKI;MORI TAIICHI;PANASONIC CORPORATION |
发明人 |
INOUE SHOHEI;HORINOUCHI SYOUGO;HORIO HIDEAKI;MORI TAIICHI |
分类号 |
G11B7/00;G11B7/135 |
主分类号 |
G11B7/00 |
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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