公开(公告)号：US20050232095A1

公开(公告)日：2005-10-20

申请号：US11083104

申请日：2005-03-18

申请人： Shota Okamoto ,  Takehiro Motegi

发明人： Shota Okamoto ,  Takehiro Motegi

IPC分类号： G11B7/125 ,  G11B7/00 ,  G11B7/12 ,  H05K1/00 ,  H05K1/02

CPC分类号： G11B7/12 ,  H05K1/0215 ,  H05K1/0393 ,  H05K2201/0367 ,  H05K2201/056

摘要： A grounded pickup body 40 and a flexible-printed circuit board (FPC) are provided 10. On the reverse side of the FPC 10, a plurality of protruding lands 30 is connected to a ground pattern. The FPC 10 is wrapped around the pickup body 40, and a part of the FPC 10 is fixed to the pickup body 40. Thus, the plurality of protruding lands 30 makes electrical contact with the pickup body 40. As a result, ground reinforcement of the FPC 10 can be efficiently attained at low cost.

摘要翻译： 提供接地拾取体40和柔性印刷电路板（FPC）10。 在FPC10的背面，多个突出的焊盘30连接到接地图案。 FPC 10缠绕拾取器主体40，并且FPC 10的一部分固定到拾取器主体40。 因此，多个突出的凸台30与拾取器主体40电接触。 结果，可以以低成本有效地获得FPC 10的地面加固。

公开(公告)号：US06781947B2

公开(公告)日：2004-08-24

申请号：US09955977

申请日：2001-09-20

申请人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Yoshihiro Seita ,  Makoto Kawamura

发明人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Yoshihiro Seita ,  Makoto Kawamura

IPC分类号： G11B700

CPC分类号： G11B7/127 ,  G11B7/126 ,  G11B7/1356 ,  G11B7/1362 ,  G11B2007/0006

摘要： Laser beams h1, h2 with different wavelengths emitted from semiconductor lasers 2a, 3 are incident to an optical path joint prism 13 and each of optical intensities of the laser beams h1, h2 is detected by a photoelectric conversion element 15 provided in an optical path integrated by the optical path joint prism 13 on which a semi-transmission film HM is provided and APC control of each of light emission intensities of the semiconductor lasers 2a, 3 is performed on a basis of each of detection results. As a result of this, the beam intensity of the laser beam h1 passing through the optical path joint prism 13 to be applied to an information recording medium and the laser beam h2 reflecting the optical path joint prism 13 to be applied to the information recording medium are controlled properly.

摘要翻译： 从半导体激光器2a，3发射的具有不同波长的激光束h1，h2入射到光路接合棱镜13，激光束h1，h2的每个光强度由设置在光路集成的光路中的光电转换元件15检测 通过其上设置有半透射膜HM的光路接合棱镜13，并且基于每个检测结果执行对半导体激光器2a，3的每个发光强度的APC控制。 其结果是，将通过光路连接棱镜13的激光束h1的光束强度施加到信息记录介质上，反射光路连接棱镜13的激光束h2被施加到信息记录介质 被正确控制

公开(公告)号：US06798727B2

公开(公告)日：2004-09-28

申请号：US09955978

申请日：2001-09-20

申请人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Makoto Kawamura ,  Yoshihiro Seita

发明人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Makoto Kawamura ,  Yoshihiro Seita

IPC分类号： G11B700

CPC分类号： G11B7/127 ,  G11B7/126 ,  G11B7/1356 ,  G11B7/1362 ,  G11B2007/0006

摘要： A reflective mirror 14 is inclined and placed with respect to an objective lens 16 and a photoelectric conversion element 15 for monitor is placed in the back side of the reflective mirror 14. The reflective mirror 14 is formed into a structure in which a semi-transmission film HM having predetermined reflectance and transmittance is formed on one surface of a substrate of a transparent medium. When a laser beam for information record or information reproduction is launched from semiconductor lasers 2a, 3 to the reflective mirror 14, the semi-transmission film HM splits the laser beam into a reflected beam and a transmitted beam and the reflected beam is emitted to the side of the objective lens 16 and the transmitted beam is emitted to the side of the photoelectric conversion element 15. As a result of this, any laser beams for the information record and the information reproduction can be detected by one photoelectric conversion element 15 to perform APC control of the semiconductor lasers 2a, 3 and the intensity of the laser beam for the information record and the information reproduction with respect to an information record medium can be controlled properly.

摘要翻译： 反射镜14相对于物镜16倾斜并放置，并且用于监视器的光电转换元件15被放置在反射镜14的背面。反射镜14形成为半透射的结构 在透明介质的基板的一个表面上形成具有预定反射率和透射率的膜HM。 当用于信息记录或信息再现的激光束从半导体激光器2a，3发射到反射镜14时，半透射膜HM将激光束分成反射光束和透射光束，并将反射光束发射到 物镜16的一侧，并且透射光束被发射到光电转换元件15的一侧。结果，可以由一个光电转换元件15检测用于信息记录和信息再现的任何激光束以执行 可以适当地控制半导体激光器2a，3的APC控制和用于信息记录的激光束的强度和关于信息记录介质的信息再现。

公开(公告)号：US07009929B2

公开(公告)日：2006-03-07

申请号：US10782868

申请日：2004-02-23

申请人： Takehiro Motegi

发明人： Takehiro Motegi

IPC分类号： G11B7/00

CPC分类号： G11B7/12 ,  G11B7/135

摘要： The optical pickup reads an information signal by emitting a light beam to an information recording surface of a recording medium having a recording track composed of information pits arranged for recording the information signal. The optical pickup is provided with: a light source which emits the light beam having linear polarization; an optical system which guides the emitted light beam to the information recording surface and further guides light that is emitted from the information recording surface based on the guided light beam, to an optical path different from an optical path to the light source; and a light-receiving device which receives the light guided by the optical system from the information recording surface. The optical system controls a polarization direction of the emitted light beam, with respect to a direction of the recording track.

摘要翻译： 光拾取器通过将光束发射到记录介质的信息记录表面来读取信息信号，该记录介质具有由用于记录信息信号的信息坑组成的记录道。 光学拾取器设置有：发出具有线偏振光束的光源; 将发射的光束引导到信息记录表面并进一步将基于导光的信息从信息记录表面发射的光引导到不同于光源的光路的光路的光学系统; 以及光接收装置，其从信息记录表面接收由光学系统引导的光。 光学系统相对于记录轨道的方向控制发射光束的偏振方向。