OPTICAL HEAD THAT IMPROVES READ SIGNAL CHARACTERISTICS
    2.
    发明申请
    OPTICAL HEAD THAT IMPROVES READ SIGNAL CHARACTERISTICS 审中-公开
    改善阅读信号特性的光学头

    公开(公告)号:WO2006059795A1

    公开(公告)日:2006-06-08

    申请号:PCT/JP2005/022508

    申请日:2005-12-01

    CPC classification number: G11B7/1374 G11B7/1362 G11B7/1367 G11B7/1381

    Abstract: In an optical head operable to record to and read from an optical recording medium, a beam emitted by a light-emitting element is reflected toward the light-emitting element by a first reflective mirror, and this reflected beam is reflected toward the optical recording medium by a second reflective mirror and focused on a recording surface of the optical recording medium. In this case, the first reflective mirror blocks a principal ray of the beam traveling toward the optical recording medium from the second reflective mirror, and the second reflective mirror consists of a plurality of concentric annular mirrors centered on the principal ray of the beam and separated from each other by a predetermined interval.

    Abstract translation: 在可操作以记录和读取光记录介质的光学头中,由发光元件发射的光束通过第一反射镜朝向发光元件反射,并且该反射光束被反射向光记录介质 通过第二反射镜并且聚焦在光学记录介质的记录表面上。 在这种情况下,第一反射镜阻挡从第二反射镜朝向光学记录介质传播的光束的主光线,并且第二反射镜由以束的主光线为中心的多个同心环形反射镜组成,并分离 彼此间隔预定间隔。

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