发明名称 OPTICAL PICKUP DEVICE AND ITS MANUFACTURING METHOD
摘要 <P>PROBLEM TO BE SOLVED: To provide an optical pickup device having high reliability in which a device is strengthened more and the weight is lightened more, foreign matters do not enter an optical path in the dust guard structure, the initial high pickup performance can be kept. <P>SOLUTION: This device is provided with a housing 10 having a concave part 11 for housing the optical parts of upward opening, a plurality of optical parts attached respectively to the prescribed position of the concave part 11 of this housing 10. Transparent resin is injected into the concave part 11 of the housing 10, and each optical parts are arranged, the transparent resin is hardened, each optical part is covered integrally so that a laser beam can be transmitted and they are positioned to the prescribed housing position. <P>COPYRIGHT: (C)2004,JPO
申请公布号 JP2004164768(A) 申请公布日期 2004.06.10
申请号 JP20020330956 申请日期 2002.11.14
申请人 SHARP CORP 发明人 MIYASHIGE HIROAKI
分类号 G11B7/08;B29C39/02;B29C39/10;B29C45/14;B29C45/16;G11B7/12;G11B7/22 主分类号 G11B7/08
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