发明名称 |
Method for correcting aberration due to optical disk tilt and apparatus therefor |
摘要 |
In a method and an apparatus for correcting aberration due to optical disk tilt, the apparatus includes a correction plate through which a first light beam passes by an object lens in an optical disk, a light source and a photo detector for generating and receiving a second light beam to detect the magnitude of the optical disk tilt, respectively, and an actuator for inclining the correction plate based on the detected signal. The correction plate has the same optical properties as those of the substrate of the optical disk, irrespective of the optical pick surroundings and offset the aberration due to the optical disk tilt. Therefore, while the best performance of the optical pickup is ensured, adverse effects caused by the aberration due to the optical disk tilt can be eliminated through simple circuitry.
|
申请公布号 |
US5699340(A) |
申请公布日期 |
1997.12.16 |
申请号 |
US19950585253 |
申请日期 |
1995.12.26 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE, CHUL-WOO;RHIM, KYUNG-HWA;SEONG, PYONG-YONG;CHUNG, CHONG-SAM |
分类号 |
G11B7/08;G11B7/095;G11B7/135;(IPC1-7):G11B7/095 |
主分类号 |
G11B7/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|