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 |
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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