公开(公告)号：US20030095334A1

公开(公告)日：2003-05-22

申请号：US10284415

申请日：2002-10-31

Applicant: Samsung Electronics Co., Ltd

Inventor： Tae-kyung Kim ,  Young-man Ahn ,  Hae-jung Suh ,  Jin-kyung Lee ,  Jong-bae Kim ,  Chong-sam Chung

IPC: G02B005/18 ,  G02B027/42 ,  G02B027/14

CPC classification number: G11B7/1275 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

Abstract: A compatible optical pickup for recording and/or reproducing information on/from multiple kinds of optical discs having different thicknesses by selectively using source lights of respective different wavelengths corresponding to a kind of disc and using a common objective lens. At least one phase compensator, which compensates a phase of a light having a particular wavelength to correct for spherical aberration due to a thickness difference between the kinds of optical discs and/or chromatic aberration due to a wavelength difference between the required source lights, is positioned between the source lights and an entrance pupil of the objective lens. Each phase compensator compensates light of at least one wavelength and passes light of at least one other wavelength without significant relative phase alteration. By using two phase compensators, the optical pickup may be made compatible with at least three kinds of optical discs.

Abstract translation: 一种兼容的光学拾取器，用于通过选择性地使用对应于一种光盘的各种不同波长的光源并使用公共物镜来在具有不同厚度的多种光盘上记录和/或再现信息。 至少一个相位补偿器补偿具有特定波长的光的相位，以校正由于各种光盘之间的厚度差导致的球面像差和/或由于所需源光之间的波长差导致的色差。 位于源光和物镜的入射光瞳之间。 每个相位补偿器补偿至少一个波长的光并且传递至少一个其它波长的光，而没有显着的相对相位变化。 通过使用两个相位补偿器，光拾取器可以与至少三种光盘相兼容。

公开(公告)号：US20030107979A1

公开(公告)日：2003-06-12

申请号：US10295044

申请日：2002-11-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae-kyung Kim ,  Young-man Ahn ,  Chong-sam Chung ,  Hae-jung Suh ,  Jin-kyung Lee ,  Jong-bae Kim

IPC: G11B007/135

CPC classification number: G11B7/1353 ,  G11B7/127 ,  G11B7/1367 ,  G11B7/1376 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

Abstract: A compatible optical pickup includes an optical disc, an objective lens, a diffractive device, and a divergent lens. The optical unit emits a short wavelength light beam corresponding to a high density optical disc and a long wavelength light beam corresponding to a low density optical disc. The objective lens forms a light spot on the high density optical disc and the low density optical disc and the diffractive device diffracts the short wavelength light beam to correct chromatism according to a change in a wavelength of the short wavelength light beam. The divergent lens refracts the long wavelength light beam toward the objective lens to increase a working distance with respect to the low density optical disc.

Abstract translation: 兼容的光学拾取器包括光盘，物镜，衍射装置和发散透镜。 光学单元发射对应于高密度光盘的短波长光束和对应于低密度光盘的长波长光束。 物镜在高密度光盘上形成光点，低密度光盘和衍射装置衍射短波长光束，以根据短波长光束的波长变化校正色差。 发散透镜将长波长光束折射到物镜以增加相对于低密度光盘的工作距离。

公开(公告)号：US20040148619A1

公开(公告)日：2004-07-29

申请号：US10703076

申请日：2003-11-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seok-jung Kim ,  Kim Kwang ,  Chong-sam Chung ,  Hae-jung Suh ,  Sun-mo Kim ,  Jin-won Lee

IPC: G11B007/08

CPC classification number: G11B7/08576 ,  G11B7/0956

Abstract: An optical pickup actuator for use with a recording medium includes a swing arm pivoting in a tracking direction with respect to the recording medium, a first driving unit pivoting the swing arm, an optical pickup facing the recording medium, an elastic member having one end fixed to the swing arm and a free end portion elastically deformable in a focus direction with respect to the recording medium, wherein the optical pickup is coupled to the free end portion of the elastic member, and a second driving unit deforming and driving the elastic member.

Abstract translation: 一种与记录介质一起使用的光学拾取器致动器包括：相对于记录介质在跟踪方向上枢转的摆臂，使摆臂枢转的第一驱动单元，面向记录介质的光学拾取器，一端固定的弹性构件 并且相对于记录介质在聚焦方向上可弹性变形的自由端部分，其中光学拾取器联接到弹性构件的自由端部，第二驱动单元变形并驱动弹性构件。