公开(公告)号：US20020075785A1

公开(公告)日：2002-06-20

申请号：US10012475

申请日：2001-12-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chul-woo Lee ,  Ki-won Lee ,  Seung-tae Jung ,  Dae-sik Kim

IPC: G11B007/135

CPC classification number: G11B7/1362 ,  G11B7/1374 ,  G11B2007/13725

Abstract: A solid immersion mirror (SIM) type objective lens and an optical pickup employing the same. The objective lens has a first curved surface which condenses incident light and a second curved surface surrounding the first curved surface which diverges incident light. A second transmission surface disposed to face the first transmission surface has an area which transmits incident light and a first reflection surface surrounding the second transmission surface which reflects incident light. A second reflection surface which surrounds the second curved reflects incident light. The objective lens realizes an NA of 0.7 or more with a single lens; has a working distance enabling far field recording/reproducing; has a smaller blocking area than that of the conventional SIM; and generates a smaller amount of side lobe. Where the objective lens is adopted in an optical pickup device, generation of jitter during reproduction or cross erasure during recording is minimized.

Abstract translation: 固体浸没镜（SIM）型物镜和采用该物镜的光拾取器。 物镜具有第一弯曲表面，其冷凝入射光和围绕第一弯曲表面的第二弯曲表面，其分散入射光。 与第一透射面对置设置的第二透射面具有透射入射光的区域和围绕反射入射光的第二透射面的第一反射面。 围绕第二弯曲部的第二反射面反射入射光。 物镜用单个透镜实现0.7以上的NA; 具有实现远场记录/再现的工作距离; 具有比常规SIM更小的阻塞面积; 并产生较小量的旁瓣。 在光学拾取装置中采用物镜的情况下，在记录期间的再现或交叉擦除期间产生抖动被最小化。

公开(公告)号：US20020172133A1

公开(公告)日：2002-11-21

申请号：US10078459

申请日：2002-02-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae-sik Kim ,  Seung-tae Jung ,  Cheol-sung Yeon ,  Kun-ho Cho

IPC: G11B007/135

CPC classification number: G11B7/1356 ,  G02B5/04 ,  G11B7/12 ,  G11B7/124

Abstract: A reflection type compound prism and an optical pickup apparatus employing the same. As a light beam is passed through the compound prism, a size of the light beam in a direction perpendicular to a reference plane is reduced by a first reflection surface, propagated toward an objective lens by second and third reflection surfaces and the size restored by reflecting the light beam from a fourth reflection surface forming an angle less than 45null with respect to the reference plane so that a height of an optical system is reducible to obtain a small thin optical pickup with a desired NA. The second and third reflection surfaces are spaced apart in a direction perpendicular to the reference plane by an amount close to a diameter of the light beam at a point of incidence of the light beam with the compound prism.

Abstract translation: 反射型复合棱镜和采用该棱镜的光学拾取装置。 当光束通过复合棱镜时，光束在垂直于参考平面的方向上的尺寸被第一反射表面减小，通过第二反射面和第三反射面朝向物镜传播，并且通过反射而恢复的尺寸 来自第四反射面的光束相对于参考平面形成小于45°的角度，使得光学系统的高度可以减小以获得具有期望NA的小型光学拾取器。 第二和第三反射面在与复合棱镜的光束的入射点处在垂直于参考平面的方向上间隔开接近光束直径的量。

公开(公告)号：US20020041513A1

公开(公告)日：2002-04-11

申请号：US09964510

申请日：2001-09-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chul-woo Lee ,  Seung-tae Jung ,  Hee-wan Lee

IPC: G11C011/24

CPC classification number: H01L28/40 ,  G11C11/404 ,  G11C11/565 ,  H01L27/0808 ,  H01L27/108 ,  H01L27/10805 ,  H01L28/55

Abstract: A variable capacitor and a memory device employing the same. The variable capacitor includes a first electrode formed above a substrate; a second electrode suspended with respect to the first electrode to be moved back and forth with respect to the first electrode; and an actuator for varying a capacitance. One end of the actuator is connected to the second electrode and mounted with respect to the substrate to move the second electrode with respect to the first electrode in accordance with a voltage signal input through a driving electrode exposed externally. The memory device includes a transistor having a source, a gate, and a drain formed above a substrate, which are spaced apart from each other, a capacitor connected to the source, and an actuator varying a capacitance of the capacitor. With the variable capacitor and the memory device employing the same, the variable capacitor allows the correction of a capacitance error caused during the manufacturing process by varying the capacitance of the capacitor through the electrical driving voltage and provides compatibility in use to be fit to the specification of an electronic unit to which the capacitor is to be applied. The memory device can store multiple values more extensive than binary values in one memory cell, to increase the data storage density thereof.

Abstract translation: 一种可变电容器和采用该可变电容器的存储器件。 可变电容器包括形成在衬底上的第一电极; 相对于第一电极悬挂的相对于第一电极来回移动的第二电极; 以及用于改变电容的致动器。 致动器的一端连接到第二电极并且相对于基板安装，以根据从外部暴露的驱动电极输入的电压信号相对于第一电极移动第二电极。 存储器件包括晶体管，其具有形成在衬底上方的彼此间隔开的源极，栅极和漏极，连接到源极的电容器和改变电容器的电容的致动器。 使用可变电容器和采用该可变电容器的存储器件，可变电容器允许通过通过电驱动电压改变电容器的电容来校正在制造过程中引起的电容误差，并提供使用中的兼容性以适应规范 的电容器。 存储器件可以在一个存储器单元中存储比二值更广泛的多个值，以增加其数据存储密度。

公开(公告)号：US20020040891A1

公开(公告)日：2002-04-11

申请号：US09955061

申请日：2001-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soon-kyo Hong ,  Chul-woo Lee ,  Seung-tae Jung ,  Sung-hoon Choa

IPC: B23H005/00 ,  B23H009/00 ,  B23K009/00 ,  G11B033/14

CPC classification number: G11B33/08 ,  B23K26/0823 ,  B23K26/1462 ,  Y10T29/49025 ,  Y10T29/49036 ,  Y10T29/53165

Abstract: A disc balancing device and a method thereof. The disc balancing device includes a disc assembly having a driving source, and a disc rotatably disposed at the driving source, a displacement measurement unit measuring vibration in the rotation of the disc assembly, a phase angle measurement unit measuring a phase angle from a reference point of the disc assembly in the rotation of the disc assembly, an operation/control unit calculating an eccentric mass and an eccentric position of the disc assembly, by using the biased vibration measured in the displacement measurement unit and the phase angle measured in the phase angle measurement unit, and a laser cutter tracking and laser-cutting the side portion of the disc corresponding to the eccentric position according to the information from the operation/control unit, whereby the eccentric mass of the disc assembly is balanced to reduce vibration in the rotation.

Abstract translation: 一种光盘平衡装置及其方法。 盘平衡装置包括具有驱动源的盘组件和可旋转地设置在驱动源处的盘，测量盘组件的旋转中的振动的位移测量单元，相位角测量单元，其从参考点 通过使用在位移测量单元中测量的偏置振动和在相位角测量的相位角来计算盘组件的偏心质量和偏心位置的操作/控制单元 测量单元和激光切割器根据来自操作/控制单元的信息跟踪和激光切割对应于偏心位置的盘的侧部，由此平衡盘组件的偏心质量以减少旋转中的振动 。