发明名称 |
Optical head and optical disk drive unit therewith |
摘要 |
An optical head is provided which is capable of making an optical disk drive unit thinner. The optical head includes: a laser diode which emits light toward an optical disk; a photodiode which is disposed in the same housing as the laser diode; a light-turning mirror which reflects and deflects the light emitted from the laser diode; a light-raising mirror which reflects and deflects the light reflected by the light-turning mirror in the direction of the optical disk; an objective lens that converges the light reflected by the light-raising mirror onto the optical disk; and a hologram element which allows the light reflected by the optical disk to branch off and reach the photodiode, in which at least a part of the light-turning mirror is disposed inside of the window portion of a cartridge which houses the optical disk.
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申请公布号 |
US2004240334(A1) |
申请公布日期 |
2004.12.02 |
申请号 |
US20040853181 |
申请日期 |
2004.05.26 |
申请人 |
NAGATA TAKAYUKI;TOMITA HIRONORI;NAKATA HIDEKI |
发明人 |
NAGATA TAKAYUKI;TOMITA HIRONORI;NAKATA HIDEKI |
分类号 |
G11B7/09;G11B7/00;G11B7/12;G11B7/13;G11B7/135;G11B11/105;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/09 |
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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