公开(公告)号：US06563784B2

公开(公告)日：2003-05-13

申请号：US09769069

申请日：2001-01-24

申请人： Gee Pyeong Han ,  Kyoung Ik Cho ,  Mun Cheol Paek ,  Yeung Joon Sohn

发明人： Gee Pyeong Han ,  Kyoung Ik Cho ,  Mun Cheol Paek ,  Yeung Joon Sohn

IPC分类号： G11B700

CPC分类号： B82Y10/00 ,  G11B7/122 ,  G11B7/1387 ,  G11B7/14 ,  G11B15/62 ,  G11B15/64

摘要： The present invention relates to an optical data recording device using SIL (Solid Immersion Lens) in order to store information with high capacity, and more particularly to the multiple optical-recording apparatus capable of doing multiple information storage and play by forming multiple focus within the SIL. The present invention utilizes the optical technology by multiple source in order to overcome the limit of improving the recording speed and transfer rate due to the mechanical transfer and access, the flying head technology, which was proposed to increase the transfer rate and recording access speed in the near-field recording technology. The present invention can increase the recording speed and transfer rate using optical technology transcending the limit of mechanical transfer and access according to the number of the optical sources and focuses by recording and playing several pits simultaneously after forming multiple optical focus by multiple sources on the recording medium.

公开(公告)号：US06693705B2

公开(公告)日：2004-02-17

申请号：US10163135

申请日：2002-06-04

申请人： Yeung Joon Sohn ,  Gee Pyeong Han ,  Yark Yeon Kim ,  Tae Youb Kim ,  Mun Cheol Paek ,  Kyoung Ik Cho

发明人： Yeung Joon Sohn ,  Gee Pyeong Han ,  Yark Yeon Kim ,  Tae Youb Kim ,  Mun Cheol Paek ,  Kyoung Ik Cho

IPC分类号： G01B900

CPC分类号： G01B11/26

摘要： The present invention relates to an apparatus for measuring a slant angle in a solid immersion lens. In a near-field optical data storage head for storing/reading data using a solid immersion lens (SIL), a parallel light is formed within the plane of the solid immersion lens and the slant angle of the parallel light is then measured using the angle measurement principle of the autocollimator in order to measure the slant angle of the solid immersion lens. For this, the present invention includes an optical system for generating the parallel light within the solid immersion lens, and a unit for measuring the slant angle of the solid immersion lens using a location detection unit. An incident light becomes the parallel light by the optical system and the curved face of the solid immersion lens. The reflected light is also focused on the location detection unit. The location detection unit converts the reflection angle of the reflecting light into a location value to calculate the angle value.

摘要翻译： 本发明涉及一种用于测量固体浸没透镜中的倾斜角度的装置。 在用于使用固体浸没透镜（SIL）存储/读取数据的近场光学数据存储头中，在固体浸没透镜的平面内形成平行光，然后使用角度测量平行光的倾斜角度 自动准直仪的测量原理是为了测量固体浸没透镜的倾斜角度。 为此，本发明包括用于在固体浸没透镜内产生平行光的光学系统和用于使用位置检测单元来测量固体浸没透镜的倾斜角度的单元。 入射光通过光学系统和固体浸没透镜的曲面变成平行光。 反射光也聚焦在位置检测单元上。 位置检测单元将反射光的反射角转换为位置值以计算角度值。

公开(公告)号：US07283705B2

公开(公告)日：2007-10-16

申请号：US10913417

申请日：2004-08-09

申请人： Mun Cheol Paek ,  Yeung Joon Sohn ,  Dong Woo Suh ,  Ho Jun Ryu ,  Hyeon Bong Pyo ,  Yong Woo Park

发明人： Mun Cheol Paek ,  Yeung Joon Sohn ,  Dong Woo Suh ,  Ho Jun Ryu ,  Hyeon Bong Pyo ,  Yong Woo Park

IPC分类号： G02B6/34 ,  G02B6/00

CPC分类号： G11B7/1353 ,  G02B6/124

摘要： Provided is a planar focusing grating coupler, comprising: a light waveguide including a cladding layer and a core layer formed on a substrate and maintaining incident laser light in a single mode; and a focusing grating coupler formed to have a predetermined grating pitch at a certain area over the core layer, wherein the light using to the light waveguide forms a focal point with the grating layer in the direction perpendicular to the focusing grating coupler, whereby an ultra small pickup head for a mobile optical disk can be used.

摘要翻译： 提供一种平面聚焦光栅耦合器，包括：包括覆层的光波导和形成在基板上的芯层，并将入射激光保持在单一模式; 以及聚焦光栅耦合器，其形成为在芯层上的特定区域具有预定的光栅间距，其中使用于光波导的光在垂直于聚焦光栅耦合器的方向上形成具有光栅层的焦点，由此， 可以使用用于移动光盘的小拾取头。

公开(公告)号：US07153540B2

公开(公告)日：2006-12-26

申请号：US10721636

申请日：2003-11-24

申请人： Dong Woo Suh ,  Ho Jun Ryu ,  Yeung Joon Sohn ,  Yong Woo Park ,  Mun Cheol Paek

发明人： Dong Woo Suh ,  Ho Jun Ryu ,  Yeung Joon Sohn ,  Yong Woo Park ,  Mun Cheol Paek

IPC分类号： B05D3/02 ,  B05D7/14

CPC分类号： G11B11/10582 ,  G11B11/10584 ,  G11B11/10591

摘要： A recording layer of a magneto-optical storage medium having a sublayer in accordance with the present invention comprises a recording layer on which information is recorded and stored; and a sublayer formed above or below the recording layer and made up of an alloy containing a transition metal, wherein a magnetic anisotropy energy of the sublayer is exchange-coupled to the recording layer, thereby enhancing a coercive force of the recording layer. The sublayer may be formed in a single-layered structure having one layer, or in a multi-layered structure having a plurality of layers. The sublayer is preferably made up of an alloy containing a transition metal used for the recording layer. According to the present invention, the coercive force of the recording layer can be increased by an exchange coupling effect between the recording layer and its adjacent sublayer, and thus, the stability of the magnetic domain in the recording layer can be improved. Therefore, the size of the magnetic domain can be significantly reduced, and the density of recording can be increased.

摘要翻译： 根据本发明的具有子层的磁光存储介质的记录层包括记录和存储信息的记录层; 以及形成在记录层的上方或下方并由含有过渡金属的合金构成的子层，其中子层的磁各向异性能量与记录层交换耦合，从而提高记录层的矫顽力。 子层可以形成为具有一层的单层结构，或者具有多层的多层结构。 子层优选由含有用于记录层的过渡金属的合金构成。 根据本发明，可以通过记录层及其相邻子层之间的交换耦合效应来提高记录层的矫顽力，从而可以提高记录层中磁畴的稳定性。 因此，可以显着地减小磁畴的尺寸，并且能够提高记录密度。