Optical pickup
    1.
    发明公开
    Optical pickup 有权
    光学拾音器

    公开(公告)号:EP2259263A1

    公开(公告)日:2010-12-08

    申请号:EP10164986.1

    申请日:2010-06-04

    IPC分类号: G11B7/22 G11B7/12 G11B7/13

    CPC分类号: G11B7/22 G11B7/12 G11B7/13

    摘要: In an optical pickup, a photo receiving portion (17) for receiving returned light reflected by an optical disc is adhered and fixed to an optical base (2). The photo receiving portion (17) has a photodetector (171) and a plate (172) on which the photodetector is loaded. The plate (172) is fixed onto the optical base (2) by adhesive such that the photo receiving portion (17) is adhered and fixed to the optical base (2). The plate (172) is in a substantially circular shape in plan view. Displacement of the photodetector by uneven cure shrinkage of the adhesive is reduced compared to an arrangement in which the photodetector is loaded on a rectangular plate.

    摘要翻译: 在光学拾取器中,用于接收由光盘反射的返回光的光接收部分(17)粘附并固定到光学基座(2)。 光接收部分(17)具有光检测器(171)和其上装载有光检测器的板(172)。 通过粘合剂将板(172)固定到光学基座(2)上,使得光学接收部分(17)粘附并固定到光学基座(2)。 板(172)在平面图中呈大致圆形。 与其中光检测器装载在矩形板上的布置相比,通过粘合剂的不均匀固化收缩使光检测器的位移减小。