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    • 3. 发明申请
    • Optical pick-up device, and optical disc drive including the same
    • 光学拾取装置和包括其的光盘驱动器
    • US20050002109A1
    • 2005-01-06
    • US10879562
    • 2004-06-28
    • Shinichi Tokuno
    • Shinichi Tokuno
    • G11B7/125G02B27/10G02B27/14G11B7/00G11B7/1263G11B7/135H01S5/022
    • G11B7/1263G11B2007/0006
    • An optical pick-up device comprising: at least two light sources for emitting laser beams of different wavelengths; a beam splitter for reflecting or transmitting the light beams from the light sources; the beam splitter including a wavelength selecting film which reflects substantially all of the light beam from one of the light sources and transmits substantially all of the light beam from the other light source, a collimator lens for collimating the light beams reflected or transmitted by the beam splitter; a rising mirror for reflecting the light beams collimated at the collimator lens for rising; an objective lens for transmitting the laser beams reflected at the rising mirror, at least two reflecting mirrors for reflecting, in advance, the light beam unnecessary for rising before entering the beam splitter, when the light beam is reflected at the rising mirror after being emitted from each light source and passing through the beam splitter and the collimator lens; and a front monitor PD for receiving the light beams and monitoring the quantity of light of the light beams reflected at the reflecting mirrors.
    • 一种光学拾取装置,包括:用于发射不同波长的激光束的至少两个光源; 用于从光源反射或透射光束的分束器; 所述分束器包括波长选择膜,其基本上反射来自所述光源中的一个的所述光束并且基本上透射来自所述另一光源的所述光束;准直透镜,用于准直由所述光束反射或透射的光束 分流器 用于反射在准直透镜准直的光束上升的上升反射镜; 用于透射在上升反射镜处反射的激光束的物镜;至少两个反射镜,用于在发射之后在上升反射镜处反射预先在预先进入分束器之前上升的光束 从每个光源并通过分束器和准直透镜; 以及用于接收光束并监视在反射镜处反射的光束的光量的前监视器PD。
    • 5. 发明授权
    • Optical pickup device having a wavelength selecting film and an optical reflector
    • 具有波长选择膜和光反射器的光学拾取装置
    • US07321533B2
    • 2008-01-22
    • US10391185
    • 2003-03-19
    • Hiroshi KatayamaShinichi Tokuno
    • Hiroshi KatayamaShinichi Tokuno
    • G11B7/125
    • G11B7/1263G11B7/1275G11B7/1356G11B2007/0006
    • An optical pickup device has first and second light sources that emit first and second laser beams of different wavelengths, an object lens that concentrates the first and second laser beams on a data recording surface of an optical disk, an optical separator disposed between the first and second light sources and the object lens, and an optical monitor that detects a quantity of light of the second laser beam. The optical separator has a wavelength selecting film that, on one hand, reflects the first laser beam emitted from the first light source toward the object lens and, on the other hand, transmits the second laser beam emitted from the second light source to the object lens, and a reflector that reflects a part of the second laser beam emitted from the second light source toward the optical monitor.
    • 光学拾取装置具有发射不同波长的第一和第二激光束的第一和第二光源,将第一和第二激光束集中在光盘的数据记录表面上的物镜,设置在第一和第二激光束之间的光学分离器 第二光源和物镜,以及检测第二激光束的光量的光学监视器。 光学分离器具有波长选择膜,其一方面将从第一光源发射的第一激光束反射到物镜,另一方面将从第二光源发射的第二激光束透射到物体 透镜和将从第二光源发射的第二激光束的一部分反射到光学监视器的反射器。
    • 8. 发明申请
    • OPTICAL PICKUP DEVICE HAVING A WAVELENGTH SELECTING FILM AND AN OPTICAL REFLECTOR
    • 具有波长选择膜和光反射器的光学拾取器件
    • US20080031121A1
    • 2008-02-07
    • US11867601
    • 2007-10-04
    • Hiroshi KATAYAMAShinichi TOKUNO
    • Hiroshi KATAYAMAShinichi TOKUNO
    • G11B7/135
    • G11B7/1263G11B7/1275G11B7/1356G11B2007/0006
    • An optical pickup device has first and second light sources that emit first and second laser beams of different wavelengths, an object lens that concentrates the first and second laser beams on a data recording surface of an optical disk, an optical separator disposed between the first and second light sources and the object lens, and an optical monitor that detects a quantity of light of the second laser beam. The optical separator has a wavelength selecting film that, on one hand, reflects the first laser beam emitted from the first light source toward the object lens and, on the other hand, transmits the second laser beam emitted from the second light source to the object lens, and a reflector that reflects a part of the second laser beam emitted from the second light source toward the optical monitor.
    • 光学拾取装置具有发射不同波长的第一和第二激光束的第一和第二光源,将第一和第二激光束集中在光盘的数据记录表面上的物镜,设置在第一和第二激光束之间的光学分离器 第二光源和物镜,以及检测第二激光束的光量的光学监视器。 光学分离器具有波长选择膜,其一方面将从第一光源发射的第一激光束反射到物镜,另一方面将从第二光源发射的第二激光束透射到物体 透镜和将从第二光源发射的第二激光束的一部分反射到光学监视器的反射器。