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
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