OPTICAL PICKUP DEVICE AND OPTICAL DRIVE DEVICE
    5.
    发明公开
    OPTICAL PICKUP DEVICE AND OPTICAL DRIVE DEVICE 审中-公开
    光学拾取装置和光驱装置

    公开(公告)号:EP3252773A1

    公开(公告)日:2017-12-06

    申请号:EP15879838.9

    申请日:2015-12-21

    IPC分类号: G11B7/135 G11B7/005

    摘要: An optical pickup device capable of improving playback performance in L2-layer at a time of playback of a triple-layer structure optical disc is provided. The optical pickup device includes a semiconductor laser that emits a laser beam, and an object lens that concentrates the laser beam emitted from the semiconductor laser on the optical disc. In this optical pickup device, an optical axis of the object lens is inclined with respect to an optical axis of the laser beam that is incident on the object lens so as to generate flares caused by coma aberration on an entrance side in a forward direction of pits of the optical disc.

    摘要翻译: 提供了一种能够在重放三层结构光盘时改进L2层中的重放性能的光学拾取装置。 该光学拾取装置包括发射激光束的半导体激光器和将从半导体激光器发射的激光束集中在光盘上的物镜。 在该光学拾取装置中,物镜的光轴相对于入射到物镜上的激光束的光轴倾斜,以便在入射侧的前向产生由彗形像差引起的耀斑 光盘的坑。

    Optical switching fabric with an optical to electrical converter in the output plane
    8.
    发明公开
    Optical switching fabric with an optical to electrical converter in the output plane 审中-公开
    Optische Schaltungsvorrichtung mit einem opto-elektrischen Wandler in der Ausgangsebene

    公开(公告)号:EP1359446A2

    公开(公告)日:2003-11-05

    申请号:EP02023229.4

    申请日:2002-10-16

    IPC分类号: G02B6/35

    摘要: An optical switching fabric (100) with an optical to electrical converter (124) in the output plane (120). The optical switching fabric (100) has an input plane (110) with at least one input. The input plane (110) provides at least a first optical signal (e.g., a first set of optical signals). The optical switching fabric has an output plane (120). The optical switching fabric has an interconnection mechanism (130) for receiving the first set of optical signals and directing each received optical signal to a predetermined location in the output plane. The output plane (120) has at least one optical to electrical converter (124) (e.g., a plurality of optical to electrical converters) for receiving the directed optical signals and responsive thereto for generating a set of corresponding electronic output signals.

    摘要翻译: 一种在输出平面(120)中具有光电转换器(124)的光交换结构(100)。 光交换结构(100)具有至少一个输入的输入平面(110)。 输入平面(110)提供至少第一光信号(例如,第一组光信号)。 光交换结构具有输出平面(120)。 光交换结构具有用于接收第一组光信号并将每个接收的光信号引导到输出平面中的预定位置的互连机构(130)。 输出平面(120)具有用于接收定向光信号的至少一个光电转换器(124)(例如,多个光电转换器),并响应于此产生一组对应的电子输出信号。