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    • 8. 发明专利
    • Optical integrated unit, its adjusting method, and optical pickup device
    • 光学集成单元,其调整方法和光学拾取器件
    • JP2007059032A
    • 2007-03-08
    • JP2005246829
    • 2005-08-26
    • Sharp Corpシャープ株式会社
    • HORIYAMA MAKOTOOGAWA MASARU
    • G11B7/135G11B7/08
    • G11B7/22G11B7/0908G11B7/124G11B7/131G11B7/1353G11B7/1356
    • PROBLEM TO BE SOLVED: To provide an optical integrated unit capable of easily adjusting the relative position of a photodetector and a light source device, thereby obtaining a high-quality information signal for carrying out stable servo control. SOLUTION: In the optical integrated unit, a holding member 17 for holding a semiconductor laser 11, and a photodetector 12 are installed in a polarized beam splitter 14. Thus, as deviation from a design value caused by tolerance is reduced, and a relative positional relation between the semiconductor laser 11 and the photodetector 12 is adjusted, return light from an optical disk 4 is accurately adjusted with respect to the splitting line of a light receiving element 13. As a result, stable servo control is achieved, and a high-quality information signal is obtained. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够容易地调整光电检测器和光源装置的相对位置的光学集成单元,从而获得用于执行稳定伺服控制的高质量信息信号。 解决方案:在光学集成单元中,用于保持半导体激光器11的保持构件17和光电检测器12安装在偏振分束器14中。因此,由于由公差引起的设计值的偏离减小, 调整半导体激光器11和光电检测器12之间的相对位置关系,相对于光接收元件13的分割线精确地调节来自光盘4的返回光。结果,实现了稳定的伺服控制, 获得高质量的信息信号。 版权所有(C)2007,JPO&INPIT