发明名称 |
Optical disc drive |
摘要 |
Disclosed is an optical disc drive. The optical disc drive is provided with an arm member carrying an objective optical system and a light emitting system. The arm member is rotatable about an axis at one end portion thereof. On the other end portion of the arm member, the objective optical system is mounted. A detecting system is further provided for receiving light reflected by the optical disc via the objective optical system. The detecting system detects data related to an orientation of a beam spot formed by the reflected beam on its light receiving surface. Further provided is a control system which determines a current position of the arm member based on the data related to the orientation of the beam spot.
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申请公布号 |
US6341106(B1) |
申请公布日期 |
2002.01.22 |
申请号 |
US19980186202 |
申请日期 |
1998.11.04 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
NAKANISHI RYOICHI;NISHIKAWA HIROSHI;TAKISHIMA SUGURU;SHINOZAKI SHIMPEI |
分类号 |
G11B7/085;G11B7/12;G11B7/135;G11B11/105;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/085 |
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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