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    • 2. 发明授权
    • Optical pickup adjusting apparatus and adjusting method
    • 光拾取调节装置及调整方法
    • US08223608B2
    • 2012-07-17
    • US11649055
    • 2007-01-03
    • Yutaka ShimadaHideo Nagasaka
    • Yutaka ShimadaHideo Nagasaka
    • G11B7/00
    • G11B7/22
    • Disclosed is an adjustment apparatus for adjusting an optical pickup capable of recording and/or reproducing plural optical discs of different sorts. The adjustment apparatus is an optical disc for adjustment (1) having a first signal recording layer (5) having a physical format in common with a CD and a second signal recording layer (7) having a physical format in common with a DVD. On the first and second signal recording layers, there are concentrically recorded EFM modulated data. The respective signal recording layers are provided with recording areas (8), (9) not overlapped with each other.
    • 公开了一种用于调节能够记录和/或再现不同种类的多个光盘的光学拾取器的调节装置。 调整装置是具有第一信号记录层(5)的调整用光盘(1),该第一信号记录层具有与CD共同的物理格式,以及具有与DVD共同的物理格式的第二信号记录层(7)。 在第一和第二信号记录层上,存在同心记录的EFM调制数据。 各个信号记录层设置有彼此不重叠的记录区域(8),(9)。
    • 3. 发明申请
    • Optical pickup adjusting apparatus and adjusting method
    • 光拾取调节装置及调整方法
    • US20070109926A1
    • 2007-05-17
    • US11649055
    • 2007-01-03
    • Yutaka ShimadaHideo Nagasaka
    • Yutaka ShimadaHideo Nagasaka
    • G11B7/00
    • G11B7/22
    • Disclosed is an adjustment apparatus for adjusting an optical pickup capable of recording and/or reproducing plural optical discs of different sorts. The adjustment apparatus is an optical disc for adjustment (1) having a first signal recording layer (5) having a physical format in common with a CD and a second signal recording layer (7) having a physical format in common with a DVD. On the first and second signal recording layers, there are concentrically recorded EFM modulated data. The respective signal recording layers are provided with recording areas (8), (9) not overlapped with each other.
    • 公开了一种用于调节能够记录和/或再现不同种类的多个光盘的光学拾取器的调节装置。 调整装置是具有第一信号记录层(5)的调整用光盘(1),该第一信号记录层具有与CD共同的物理格式,以及具有与DVD共同的物理格式的第二信号记录层(7)。 在第一和第二信号记录层上,存在同心记录的EFM调制数据。 各个信号记录层设置有彼此不重叠的记录区域(8),(9)。
    • 5. 发明授权
    • Optical pickup device and optical disc recording and/or reproducing apparatus
    • 光学拾取装置和光盘记录和/或再现装置
    • US06430143B1
    • 2002-08-06
    • US09538701
    • 2000-03-30
    • Yoshihiro KajiyamaJunzo KumakuraYasuo OsadaToshiyuki KuroiwaHideo NagasakaKaneshiro KondoYutaka ShimadaKatsuo MatsumotoHiroshi IshizekiShuichi HirosawaYoshio Sugihara
    • Yoshihiro KajiyamaJunzo KumakuraYasuo OsadaToshiyuki KuroiwaHideo NagasakaKaneshiro KondoYutaka ShimadaKatsuo MatsumotoHiroshi IshizekiShuichi HirosawaYoshio Sugihara
    • G11B712
    • G11B7/121
    • An optical pickup device for recording and/or reproducing the information on or from an optical disc. The optical pickup device includes a cover plate for covering said through-hole of said lid when said optical pickup unit is moved by said optical pickup feed unit until the objective lens is located outwardly of the optical disc loaded on said disc rotating driving unit; an abutting portion provided on one of said lid and the cover plate, said abutting portion causing movement of said cover plate in a direction away from the objective lens when said optical pickup unit is moved by said optical pickup feed unit so that said objective lens is positioned outwardly of said optical disc; and an engagement portion provided on the other of said lid and the cover plate, said engagement portion engaging with said abutting portion when, after said cover plate is moved by said abutting portion in a direction away from the objective lens, the optical pickup unit is further moved to outwardly of the optical disc by said optical pickup unit. The optical pickup unit is held in stability on an outer rim side of the optical disc, whilst it is possible to prevent dust and dirt from being intruded inti its inside.
    • 一种用于在光盘上记录和/或再现信息的光学拾取装置。 所述光学拾取装置包括盖板,用于当所述光学拾取单元被所述光学拾取器馈送单元移动时覆盖所述盖子的所述通孔,直到物镜位于装载在所述盘旋转驱动单元上的光盘的外侧; 所述抵接部分设置在所述盖和所述盖板中的一个上,当所述光学拾取单元被所述光学拾取器馈送单元移动时,所述抵接部分使所述盖板沿远离所述物镜的方向移动,使得所述物镜定位 在所述光盘的外面; 安装在所述盖和盖板的另一个上的接合部分,当所述盖板在远离物镜的方向上被所述抵接部分移动之后,所述接合部分与所述抵接部分接合,所述光学拾取单元进一步 通过所述光学拾取单元移动到光盘的外部。 光学拾取单元在光盘的外缘侧保持稳定,同时可以防止灰尘和灰尘进入其内部。