公开(公告)号：US20080106810A1

公开(公告)日：2008-05-08

申请号：US11668058

申请日：2007-01-29

申请人： Seiichi KATOU ,  Hidenao SAITO ,  Akio YABE ,  Yasushi KINOSHITA

发明人： Seiichi KATOU ,  Hidenao SAITO ,  Akio YABE ,  Yasushi KINOSHITA

IPC分类号： G02B7/04

CPC分类号： G11B7/13925 ,  G11B7/1374 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

摘要： In a lens actuator on which a first lens and a second lens are mounted, since the first lens and the second lens are disposed side by side, a problem is involved such that the lens actuator is bulky. The present invention provides a lens actuator comprising a first lens and a second lens having different optical paths, disposed between a light emitting element and an object lens, a holder for holding the first lens and second lens such that the optical axes of the first lens and second lens are parallel to each other, and a driving mechanism for driving the first lens and second lens each in the optical axis directions, wherein the first lens and second lens have respective outer periphery parts respectively outside the effective diameter, and the outer periphery parts of the first lens and the second lens are disposed to be partially overlapped with each other when viewed from the first lens and second lens optical axis direction.

摘要翻译： 在其上安装有第一透镜和第二透镜的透镜致动器中，由于第一透镜和第二透镜并排设置，所以涉及到透镜致动器体积大的问题。 本发明提供一种透镜致动器，包括设置在发光元件和物镜之间的具有不同光路的第一透镜和第二透镜，用于保持第一透镜和第二透镜的保持器，使得第一透镜的光轴 和第二透镜彼此平行，以及用于沿光轴方向驱动第一透镜和第二透镜的驱动机构，其中第一透镜和第二透镜分别具有分别在有效直径的外侧的外周边部分和外周边 当从第一透镜和第二透镜光轴方向观察时，第一透镜和第二透镜的部分设置成彼此部分重叠。

公开(公告)号：US20090103421A1

公开(公告)日：2009-04-23

申请号：US12255077

申请日：2008-10-21

申请人： Yoshihiro SATOU ,  Hidenao SAITO ,  Jun HATO ,  Ryuichiro MIZUNO ,  Katsuhiko KIMURA

发明人： Yoshihiro SATOU ,  Hidenao SAITO ,  Jun HATO ,  Ryuichiro MIZUNO ,  Katsuhiko KIMURA

IPC分类号： G11B7/135

CPC分类号： G11B7/0956 ,  G11B7/0932 ,  G11B7/0935

摘要： The present invention provides an object lens actuator, an optical pickup, and an optical disk drive, which can increase the size of the object lens actuator driving a lens holder in the tangential tilt direction, and drive and control the lens holder with a small amount of drive current.An object lens actuator comprising a lens holder having an object lens and a first coil; a first magnet fixed to a yoke; plural elastic support parts for supporting said lens holder with a first fulcrum; a moving part for supporting said elastic support parts with a second fulcrum different from said first fulcrum, and a fixed part having a moving mechanism for moving said moving part, wherein said first coil and said first magnet constitute a first magnetic circuit, said first magnetic circuit makes said lens holder movable in a focusing direction, a tracking direction and a radial tilt direction of an optical disk for read/write, and said moving mechanism makes said moving part movable.

摘要翻译： 本发明提供一种物镜驱动器，光拾取器和光盘驱动器，其可以增加沿切线倾斜方向驱动透镜保持器的物镜致动器的尺寸，并且以少量驱动和控制透镜保持器 的驱动电流。 一种物镜致动器，包括具有物镜和第一线圈的透镜保持器; 固定到轭的第一磁体; 用于以第一支点支撑所述透镜支架的多个弹性支撑部件; 用于以不同于所述第一支点的第二支点支撑所述弹性支撑部分的移动部分和具有用于移动所述移动部件的移动机构的固定部分，其中所述第一线圈和所述第一磁体构成第一磁路，所述第一磁体 电路使得所述透镜架能够在用于读/写的光盘的聚焦方向，跟踪方向和径向倾斜方向上移动，并且所述移动机构使得所述移动部件可移动。

公开(公告)号：US20130086600A1

公开(公告)日：2013-04-04

申请号：US13435618

申请日：2012-03-30

申请人： Manabu OCHI ,  Katsuhiko KIMURA ,  Hidenao SAITO

发明人： Manabu OCHI ,  Katsuhiko KIMURA ,  Hidenao SAITO

IPC分类号： G11B7/09

CPC分类号： G11B7/0932 ,  G11B7/0933

摘要： An optical pickup includes an object lens; a moving part including the object lens and coils; rod-shaped support members disposed in a focusing direction, one end of each of the support members being attached to side surfaces of the moving part in a tracking direction; a fixing part for fixing the other end of each of the support members; a yoke including magnets; and gel holding parts, each of the gel holding parts including walls on both sides of the support members in the tracking direction, and the support members being disposed on both sides of the moving part in the tracking direction. Each of the gel holding parts includes an opening at one end on an optical disc side in the focusing direction and includes a cutout in the wall farther from the object lens in the tracking direction, the cutout extending from an edge of the opening.

摘要翻译： 光拾取器包括物镜; 包括物镜和线圈的移动部件; 沿聚焦方向设置的棒状支撑构件，每个支撑构件的一端沿着跟踪方向附接到移动部件的侧表面; 用于固定每个支撑构件的另一端的固定部分; 包括磁体的磁轭; 和凝胶保持部，每个凝胶保持部分包括在跟踪方向上的支撑部件的两侧的壁，并且支撑部件沿跟踪方向设置在移动部件的两侧。 每个凝胶保持部分包括在聚焦方向上的光盘侧的一端的开口，并且在远离物镜的跟踪方向上包括距离物体更远的切口，该切口从开口的边缘延伸。