发明名称 INTEGRATED OPTICAL MEMBER AND OPTICAL PICKUP DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a small-size integrated optical member having high joining strength at a low cost and to provide an optical pickup device which can be assembled with high accuracy. SOLUTION: The integrated optical member 20 which guides the light emitting from a light emitting element to an optical disk and separates the reflected light from the optical disk to guide to a light receiving means, is characterized in that it is composed of a first light guide member 21 formed as a parallel plate and a composite member 56 having a plurality of optical slopes in its body. The joining face between the first light guide member 21 and the composite member 56 is composed of a main joining face 55b having a first thickness of a resin and a sub-joining face 55a having a second thickness of the resin to join the first light guide member 21 and the composite member 56.
申请公布号 JP2003114312(A) 申请公布日期 2003.04.18
申请号 JP20010309625 申请日期 2001.10.05
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 BEPPU FUMIAKI;SAKAMOTO YOSHITAKA
分类号 G02B5/04;G02B5/00;G02B5/18;G02B5/30;G02B7/00;G11B7/135 主分类号 G02B5/04
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