| 发明名称 |
OBJECTIVE LENS FOR OPTICAL DISK RECORDING/REPRODUCING DEVICE COMPRISING VARIABLE LENS FORMED BY THE INTERFACE OF TWO IMMISCIBLE FLUIDS |
| 摘要 |
There is disclosed an objective lens ( 16 ),for use with optically readable disks of differing cover layer thicknesses, wich objective lens ( 16 ) comprises a variable lens ( 1 ) formed by the interface between two immiscible fluids (A, B), which variable lens ( 1 ) can be in one of at least two discrete states and whereby the focus point of the objective lens ( 16 ) varies between the two states of the variable lens ( 1 ). |
| 申请公布号 |
EP1599753(A1) |
申请公布日期 |
2005.11.30 |
| 申请号 |
EP20040712642 |
申请日期 |
2004.02.19 |
| 申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
HENDRIKS, BERNARDUS, H., W.;KUIPER, STEIN |
| 分类号 |
G02B3/14;G02B26/02;G02B27/00;G11B7/00;G11B7/135;(IPC1-7):G02B26/02 |
主分类号 |
G02B3/14 |
| 代理机构 |
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