公开(公告)号：US08284504B2

公开(公告)日：2012-10-09

申请号：US12949235

申请日：2010-11-18

申请人： Yasuyuki Kano ,  Kenji Asano ,  Shigeki Hori

发明人： Yasuyuki Kano ,  Kenji Asano ,  Shigeki Hori

IPC分类号： G02B7/02

CPC分类号： G11B7/22 ,  G02B7/028 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1378

摘要： A lens fixing device includes a lens holder having a lens (lens area) made of a resin, and a mounting portion. The lens holder has two projections. Each of the two projections is formed with a guide surface and a mounted surface. A line of intersection of an extension of the guide surface of the projections and an extension of the mounted surface of the projections in a plane direction is aligned with an optical axis of the lens area. The lens holder is positioned with respect to a plane direction orthogonal to the optical axis by contact of the guide surfaces with receiving surfaces of the mounting portion. The lens holder is fixedly attached by an adhesive.

摘要翻译： 透镜固定装置包括具有由树脂制成的透镜（透镜区域）和安装部分的透镜保持器。 透镜架有两个突起。 两个突起中的每一个形成有引导表面和安装表面。 突起的引导表面的延伸线和突起的安装表面的平面方向的延伸线与透镜区域的光轴对准。 通过引导表面与安装部分的接收表面的接触，透镜保持器相对于与光轴正交的平面方向定位。 透镜支架通过粘合剂固定连接。

公开(公告)号：US20110122514A1

公开(公告)日：2011-05-26

申请号：US12949235

申请日：2010-11-18

申请人： Yasuyuki Kano ,  Kenji Asano ,  Shigeki Hori

发明人： Yasuyuki Kano ,  Kenji Asano ,  Shigeki Hori

IPC分类号： G02B7/02

CPC分类号： G11B7/22 ,  G02B7/028 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1378

摘要： A lens fixing device includes a lens holder having a lens (lens area) made of a resin, and a mounting portion. The lens holder has two projections. Each of the two projections is formed with a guide surface and a mounted surface. A line of intersection of an extension of the guide surface of the projections and an extension of the mounted surface of the projections in a plane direction is aligned with an optical axis of the lens area. The lens holder is positioned with respect to a plane direction orthogonal to the optical axis by contact of the guide surfaces with receiving surfaces of the mounting portion. The lens holder is fixedly attached by an adhesive.

摘要翻译： 透镜固定装置包括具有由树脂制成的透镜（透镜区域）和安装部分的透镜保持器。 透镜架有两个突起。 两个突起中的每一个形成有引导表面和安装表面。 突起的引导表面的延伸线和突起的安装表面的平面方向的延伸线与透镜区域的光轴对准。 通过引导表面与安装部分的接收表面的接触，透镜保持器相对于与光轴正交的平面方向定位。 透镜支架通过粘合剂固定连接。

公开(公告)号：US20080267042A1

公开(公告)日：2008-10-30

申请号：US12108908

申请日：2008-04-24

申请人： Yasuyuki KANO ,  Satomi Osugi ,  Tetsuhisa Hosokawa

发明人： Yasuyuki KANO ,  Satomi Osugi ,  Tetsuhisa Hosokawa

IPC分类号： G11B7/135

CPC分类号： G11B7/1365 ,  G11B7/1356 ,  G11B7/1374 ,  G11B2007/0006

摘要： A quarter-wave plate and a polarization beam splitter are used as means for guiding a laser beam to first and second objective lenses. A half of the circularly-polarized laser beam incident to the polarization beam splitter is reflected in the form of an S-polarized light component by the polarization beam splitter and guided to a first objective lens, and the other half is transmitted through the polarization beam splitter in the form of a P-polarized light component and guided to a second objective lens. The whole of light quantity of the laser beam reflected from an optical disk through the first or second objective lens passes substantially through the polarization beam splitter. Therefore, the light quantity of the laser beam guided to a photodetector can be enhanced.

摘要翻译： 四分之一波片和偏振分束器用作将激光束引导到第一和第二物镜的装置。 入射到偏振分束器的圆偏振激光束的一半被偏振分束器以S偏振光分量的形式反射并被引导到第一物镜，另一半透射通过偏振束 分离器以P偏振光分量的形式被引导到第二物镜。 从光盘通过第一或第二物镜反射的激光束的整个光量基本上通过偏振分束器。 因此，可以提高引导到光电检测器的激光束的光量。

公开(公告)号：US20080186834A1

公开(公告)日：2008-08-07

申请号：US12024450

申请日：2008-02-01

申请人： Yasuyuki KANO ,  Kenji Nagatomi

发明人： Yasuyuki KANO ,  Kenji Nagatomi

IPC分类号： G11B7/00

CPC分类号： G11B7/0943 ,  G11B7/1365 ,  G11B7/1374 ,  G11B7/1392 ,  G11B7/1395 ,  G11B2007/0006

摘要： A half-wave plate is attached to a lens holder holding a collimator lens, and a servo operation to the collimator lens and insertion and retraction of the half-wave plate in and from an optical path of a laser beam are performed by a common actuator. When the lens holder is moved to a servo position, the half-wave plate is inserted in and retracted from the optical path of the laser beam. Therefore, the laser beam is formed in S-polarized light or P-polarized light with respect to a polarization beam splitter, and the laser beam is guided to a first objective lens or a second objective lens.

摘要翻译： 将半波片连接到保持准直透镜的透镜保持器，并且对准直透镜进行伺服操作，并且半波片在激光束的光路中和从激光束的光路中的插入和缩回通过公共致动器 。 当透镜保持架移动到伺服位置时，半波片插入激光束的光路中并从其中退出。 因此，激光束相对于偏振分束器以S偏振光或P偏振光形成，激光束被引导到第一物镜或第二物镜。

公开(公告)号：US6009072A

公开(公告)日：1999-12-28

申请号：US236084

申请日：1999-01-25

申请人： Yoichi Tsuchiya ,  Hitoshi Terasaki ,  Shuichi Ichiura ,  Toshio Ito ,  Yasuyuki Kano ,  Yoshimoto Yamaguchi ,  Seizo Kato ,  Osamu Ota

发明人： Yoichi Tsuchiya ,  Hitoshi Terasaki ,  Shuichi Ichiura ,  Toshio Ito ,  Yasuyuki Kano ,  Yoshimoto Yamaguchi ,  Seizo Kato ,  Osamu Ota

IPC分类号： G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/125 ,  G11B19/26 ,  G11B7/24

CPC分类号： G11B7/24085 ,  G11B19/26 ,  G11B7/005 ,  G11B7/127 ,  G11B7/24079 ,  G11B7/0037

摘要： An optical disc player for reproducing an optical disc having a pit width of 0.2-0.35 .mu.m, a pit depth of 100-120 nm, and a track pitch of 0.7-0.85 .mu.m. The optical disc player includes a semiconductor laser having a wavelength of 590-670 .mu.m and a laser beam projector which projects the laser beam from the laser onto the optical disc with a spot of a predetermined diameter.

摘要翻译： 一种用于再现凹坑宽度为0.2-0.35μm，凹坑深度为100-120nm，轨道间距为0.7-0.85μm的光盘的光盘播放器。 光盘播放器包括波长为590-670μm的半导体激光器和激光束投影仪，其将来自激光器的激光束以预定直径的光点投影到光盘上。

公开(公告)号：US5689495A

公开(公告)日：1997-11-18

申请号：US709671

申请日：1996-09-09

申请人： Yoichi Tsuchiya ,  Hitoshi Terasaki ,  Shuichi Ichiura ,  Toshio Ito ,  Yasuyuki Kano ,  Yoshimoto Yamaguchi ,  Seizo Kato ,  Osamu Ota

发明人： Yoichi Tsuchiya ,  Hitoshi Terasaki ,  Shuichi Ichiura ,  Toshio Ito ,  Yasuyuki Kano ,  Yoshimoto Yamaguchi ,  Seizo Kato ,  Osamu Ota

IPC分类号： G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/125 ,  G11B7/135 ,  G11B19/26 ,  G11B7/24

CPC分类号： G11B7/24085 ,  G11B19/26 ,  G11B7/005 ,  G11B7/127 ,  G11B7/1374 ,  G11B7/24079 ,  G11B2007/13727 ,  G11B7/0037

摘要： An optical disc having a track pitch of 0.85 .mu.m, a shortest pit length of 0.49 .mu.m, a pit depth of 100 nm, and a pit width of 0.35 .mu.m is rotated at a linear velocity of 2.4-2.8 m/s such that the same is optically reproduced by a laser beam having a wavelength of 635 nm which is converged to a spot size of 0.9 .mu.m by an objective lens having a numerical aperture of 0.6, Accordingly, data is read from the optical disc at a transfer rate of 5.6 Mbps.

摘要翻译： 轨道间距为0.85μm，最短凹坑长度为0.49μm，凹坑深度为100nm，凹坑宽度为0.35μm的光盘以2.4-2.8m / s的线速度旋转，如 通过具有数值孔径为0.6的物镜将其波长为635nm的激光束光学再现，该物镜会聚到0.9μm的光点，因此，在转印时从光盘读取数据 速率为5.6 Mbps。

公开(公告)号：US20110255392A1

公开(公告)日：2011-10-20

申请号：US13086733

申请日：2011-04-14

申请人： Yasuyuki Kano ,  Tetsuhisa Hosokawa

发明人： Yasuyuki Kano ,  Tetsuhisa Hosokawa

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/082 ,  G11B2007/0006

摘要： A semiconductor laser emits infrared laser light for CD and red laser light for DVD. A collimator lens and a CD/DVD objective lens have optical axes thereof aligned with an optical axis of the infrared laser light. The CD/DVD objective lens is mounted on a holder to be inclined in such a direction as to suppress inherent coma aberration of the CD/DVD objective lens, and to suppress astigmatism generated in the red laser light from a state in parallel to a reference plane of the holder.

摘要翻译： 半导体激光器发射用于CD的红外激光和用于DVD的红色激光。 准直透镜和CD / DVD物镜的光轴与红外激光的光轴对准。 CD / DVD物镜安装在保持器上以沿着抑制CD / DVD物镜的固有彗形像差的方向倾斜，并且抑制红色激光产生的平行于参考的状态的像散 持有人的飞机。

公开(公告)号：US5477527A

公开(公告)日：1995-12-19

申请号：US227641

申请日：1994-04-14

申请人： Yoichi Tsuchiya ,  Hitoshi Terasaki ,  Shuichi Ichiura ,  Toshio Ito ,  Yasuyuki Kano ,  Yoshimoto Yamaguchi ,  Seizo Kato ,  Osamu Ota

发明人： Yoichi Tsuchiya ,  Hitoshi Terasaki ,  Shuichi Ichiura ,  Toshio Ito ,  Yasuyuki Kano ,  Yoshimoto Yamaguchi ,  Seizo Kato ,  Osamu Ota

IPC分类号： G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B7/125 ,  G11B7/135 ,  G11B7/24 ,  G11B19/26 ,  G11B3/70

CPC分类号： G11B7/24 ,  G11B19/26 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/0938 ,  G11B7/127 ,  G11B7/1374 ,  G11B7/24079 ,  G11B7/24085

摘要： A high density optical disc having a track pitch of 0.85 .mu.m, a shortest pit length of 0.49 .mu.m, a pit depth of 100 nm, and a pit width of 0.35 .mu.m is rotated at a linear velocity of 2.4-2.8 m/s such that the same is optically reproduced by a laser beam having a wavelength of 635 nm which is converged to a spot size of 0.9 .mu.m by an objective lens having a numerical aperture of 0.6. Accordingly, data is read from the optical disc at a transfer rate of 5.6 Mbps.

摘要翻译： 轨道间距为0.85μm，最短凹坑长度为0.49μm，凹坑深度为100nm，凹坑宽度为0.35μm的高密度光盘以2.4-2.8m / s的线速度旋转， 使得其通过具有数值孔径为0.6的物镜被具有635nm的波长的激光束光学再现，该激光束会聚到0.9μm的光斑尺寸。 因此，以5.6Mbps的传输速率从光盘读取数据。

公开(公告)号：US07801012B2

公开(公告)日：2010-09-21

申请号：US12024450

申请日：2008-02-01

申请人： Yasuyuki Kano ,  Kenji Nagatomi

发明人： Yasuyuki Kano ,  Kenji Nagatomi

IPC分类号： G11B7/00

CPC分类号： G11B7/0943 ,  G11B7/1365 ,  G11B7/1374 ,  G11B7/1392 ,  G11B7/1395 ,  G11B2007/0006

摘要： A half-wave plate is attached to a lens holder holding a collimator lens, and a servo operation to the collimator lens and insertion and retraction of the half-wave plate in and from an optical path of a laser beam are performed by a common actuator. When the lens holder is moved to a servo position, the half-wave plate is inserted in and retracted from the optical path of the laser beam. Therefore, the laser beam is formed in S-polarized light or P-polarized light with respect to a polarization beam splitter, and the laser beam is guided to a first objective lens or a second objective lens.

摘要翻译： 将半波片连接到保持准直透镜的透镜保持器，并且对准直透镜进行伺服操作，并且半波片在激光束的光路中和从激光束的光路中的插入和缩回通过公共致动器 。 当透镜保持架移动到伺服位置时，半波片插入激光束的光路中并从其中退出。 因此，激光束相对于偏振分束器以S偏振光或P偏振光形成，激光束被引导到第一物镜或第二物镜。

公开(公告)号：US07801011B2

公开(公告)日：2010-09-21

申请号：US12024278

申请日：2008-02-01

申请人： Kenji Nagatomi ,  Yasuyuki Kano

发明人： Kenji Nagatomi ,  Yasuyuki Kano

IPC分类号： G11B7/00

CPC分类号： G11B7/0943 ,  G11B7/1365 ,  G11B7/1374 ,  G11B7/13925 ,  G11B7/1395 ,  G11B2007/0006

摘要： A half-wave plate is attached to a lens holder to integrally drive a collimator lens and the half-wave plate. When the lens holder is moved to a servo position, the half-wave plate is inserted in and retracted from an optical path of a laser beam. Therefore, the laser beam is formed in S-polarized light or P-polarized light with respect to a polarization beam splitter, and the laser beam is guided to a first objective lens or a second objective lens.

摘要翻译： 将半波片连接到透镜保持器以一体地驱动准直透镜和半波片。 当透镜保持架移动到伺服位置时，半波片插入激光束的光路中并从其中退出。 因此，激光束相对于偏振分束器以S偏振光或P偏振光形成，激光束被引导到第一物镜或第二物镜。