公开(公告)号：US20060133256A1

公开(公告)日：2006-06-22

申请号：US10543140

申请日：2004-01-30

申请人： Toshiro Kinoshita ,  Akihiko Kobayashi ,  Noboru Sasaki ,  Makoto Arisawa ,  Hiroshi Iwase ,  Mamoru Sekiguchi ,  Hiroshi Ogawa ,  Yoshimori Yamasaki ,  Kiyoshi Osato ,  Masanobu Yamamoto ,  Toshiyuki Kashiwagi

发明人： Toshiro Kinoshita ,  Akihiko Kobayashi ,  Noboru Sasaki ,  Makoto Arisawa ,  Hiroshi Iwase ,  Mamoru Sekiguchi ,  Hiroshi Ogawa ,  Yoshimori Yamasaki ,  Kiyoshi Osato ,  Masanobu Yamamoto ,  Toshiyuki Kashiwagi

IPC分类号： G11B7/00

CPC分类号： G11B7/2539 ,  G11B7/242 ,  G11B7/243 ,  G11B7/245 ,  G11B7/256 ,  G11B7/257 ,  G11B7/26 ,  G11B7/265 ,  G11B23/40

摘要： An optical disk (10) of the present invention has a substrate (11) included a resin-impregnated paper, in which resin is impregnated into paper, or resin-coated paper, in which the paper surface is coated with a resin, and a recording layer (13) formed on at least one side of the substrate (11). This type of optical disk (10) has performance equal to that of conventional optical disks and has a minimal effect on the environment during disposal. In addition, a manufacturing method of an optical disk of the present invention has a recording layer sheet fabrication step in which a recording layer sheet is fabricated by forming tracks on a recording layer base material, and a recording layer sheet lamination step in which a recording layer (13) included the recording layer sheet is provided on a substrate (11) included resin-impregnated paper or resin-coated paper by laminating the recording layer sheet with the resin-impregnated paper in which a resin is impregnated into paper or the resin-coated paper in which the surface of the paper is coated with a resin. This type of manufacturing method of an optical disk allows optical disk (10) to be produced inexpensively.

摘要翻译： 本发明的光盘（10）具有：基材（11），其中树脂被浸渍到纸中的树脂浸渍纸或其中纸表面涂覆有树脂的树脂涂布纸，以及 记录层（13）形成在所述基板（11）的至少一侧上。 这种类型的光盘（10）具有与常规光盘相同的性能，并且在处理期间对环境的影响最小。 此外，本发明的光盘的制造方法具有记录层片材制造步骤，其中通过在记录层基材上形成轨迹来制造记录层片材，以及记录层片材层压步骤，其中记录 包括记录层片的层（13）通过将记录层片材与浸渍有树脂的树脂浸渍纸层压在纸或树脂上而设置在包含树脂浸渍纸或树脂涂布纸的基板（11）上 涂布纸，其中纸的表面涂覆有树脂。 这种光盘的制造方法允许廉价地生产光盘（10）。

公开(公告)号：US06798581B2

公开(公告)日：2004-09-28

申请号：US09985393

申请日：2001-11-02

申请人： Kenji Yamamoto ,  Kiyoshi Osato ,  Yoshiaki Kato

发明人： Kenji Yamamoto ,  Kiyoshi Osato ,  Yoshiaki Kato

IPC分类号： G02B2714

CPC分类号： G11B7/1376 ,  G02B27/0068 ,  G11B7/13927

摘要： An optical pickup apparatus, in which the quantity of light incident to an aperture diaphragm of an objective lens and the “rim intensity (RI)” are maintained constant even when a spherical aberration is corrected by passing a light beam through an expander lens unit before it reaches the objective lens, and which is able to adequately read/write information signals from/to optical recording media, and a read/write apparatus which includes the optical pickup apparatus are provided. The expander lens unit includes a first lens group and a second lens group, and is disposed such that a focal position of the second lens group, which is closer to the objective lens than the first lens group, is on the aperture diaphragm of the objective lens.

摘要翻译： 即使当通过使光束通过扩张器透镜单元来校正球面像差时，入射到物镜的孔径光阑的光量和“边缘强度（RI）”也保持恒定的光学拾取装置 它到达物镜，并且能够适当地从/向光学记录介质读取/写入信息信号，并且提供包括光学拾取装置的读取/写入装置。 扩展透镜单元包括第一透镜组和第二透镜组，并且被布置为使得比第一透镜组更靠近物镜的第二透镜组的焦点位于物镜的孔径光阑上 镜片。