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    • 3. 发明申请
    • Optical Head and Optical Recording Device
    • 光头和光记录装置
    • US20100208557A1
    • 2010-08-19
    • US12738962
    • 2008-10-09
    • Manami KuisekoNaoki NishidaKenji KonnoKoujirou Sekine
    • Manami KuisekoNaoki NishidaKenji KonnoKoujirou Sekine
    • G11B7/00G11B7/135G11B11/00
    • G11B5/02G11B5/314G11B5/4866G11B5/6088G11B7/08576G11B7/1359G11B7/1384G11B2005/0005G11B2005/0021
    • An optical head includes: a slider which moves relative to a recording medium while the slider is floating above the recording medium; an optical waveguide which is provided on a side surface of an end portion of the slider and which has the focusing function of forming a light spot on the recording medium; and a light guide optical system that guides a light pencil to the optical waveguide. A light pencil coupling portion which receives the light pencil from the light guide optical system is provided in a surface parallel to a direction in which the light pencil is guided by the optical waveguide; and a reflective surface which deflects the light pencil to the light pencil coupling portion is provided in the light guide optical system. The light pencil coupling portion has the function of correcting aberration resulting from oblique incidence of the light pencil obliquely incident from the light guide optical system. A medium member which has a refractive index of more than one is provided between the reflective surface and the light pencil coupling portion.
    • 光学头包括:当滑动器浮动在记录介质上方时相对于记录介质移动的滑块; 光波导,其设置在滑块的端部的侧表面上,并且具有在记录介质上形成光斑的聚焦功能; 以及将光笔引导到光波导的导光光学系统。 从光导光学系统接收光笔的光笔耦合部分设置在平行于光笔被光波导引导的方向的表面上; 并且在光导光学系统中设置将光笔偏转到光笔耦合部分的反射表面。 光笔耦合部具有校正从导光光学系统倾斜入射的光笔倾斜入射引起的像差的功能。 在反射表面和光笔耦合部分之间设置折射率大于1的介质构件。