发明名称 |
OPTICAL PICKUP AND OPTICAL DISK DEVICE |
摘要 |
<P>PROBLEM TO BE SOLVED: To reduce local temperature distribution in an optical pickup of an optical disk device. <P>SOLUTION: An optical pickup 1 mounted in the optical disk device has a light emitting element 2 for emitting the light. A drive circuit substrate controls an emitting state of the light from the light emitting element. The emitted light is led to a designated position for the disk via an optical part 5 by a lens driving device, and the light reflected from the disk is led to a detector. The detector and the light emitting element are mounted in a pickup chassis. A holder with good heat conductance is arranged around circumference of the optical part. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
申请公布号 |
JP2006120206(A) |
申请公布日期 |
2006.05.11 |
申请号 |
JP20040305027 |
申请日期 |
2004.10.20 |
申请人 |
HITACHI MEDIA ELECTORONICS CO LTD |
发明人 |
KATO MORIKAZU;TOYODA HIROYUKI;YOSHIDA HIROYASU;OISHI KOTARO;KURODA NAOMITSU |
分类号 |
G11B7/12;G11B7/08;G11B7/09 |
主分类号 |
G11B7/12 |
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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