公开(公告)号：US07298554B2

公开(公告)日：2007-11-20

申请号：US11785039

申请日：2007-04-13

申请人： Eun-hyoung Cho ,  Myung-bok Lee ,  Jin-seung Sohn

发明人： Eun-hyoung Cho ,  Myung-bok Lee ,  Jin-seung Sohn

IPC分类号： G02B5/18

CPC分类号： G02B5/1814 ,  Y10S359/90

摘要： A hybrid achromatic optical lens having a high numerical aperture whose chromatic aberration is removed and a method for manufacturing the same are provided. The hybrid achromatic optical lens includes a first optical member of a low index of refraction and a second optical member of a high index of refraction. The second optical member is formed on a depressed portion of the first optical member and has a diffractive surface, which is a contact surface of the second optical member with the first optical member and has a plurality of pitches formed on a refractive surface. The method for manufacturing the hybrid achromatic optical lens includes forming a profile of a diffractive surface having a plurality of pitches on a molding die whose one surface is the same as a profile of a refractive surface, forming a depression having the diffractive surface on a first optical member having a low index of refraction using the molding die, and coating a material having a high index of refraction on the depression, grinding a surface of material, and forming a second optical member having a high index of refraction.

公开(公告)号：US07221513B2

公开(公告)日：2007-05-22

申请号：US10452207

申请日：2003-06-03

申请人： Eun-hyoung Cho ,  Myung-bok Lee ,  Jin-seung Sohn

发明人： Eun-hyoung Cho ,  Myung-bok Lee ,  Jin-seung Sohn

IPC分类号： G02B5/18 ,  G02B3/08 ,  G11B7/00 ,  G11B7/135

CPC分类号： G02B5/1814 ,  Y10S359/90

摘要： A hybrid achromatic optical lens having a high numerical aperture whose chromatic aberration is removed and a method for manufacturing the same are provided. The hybrid achromatic optical lens includes a first optical member of a low index of refraction and a second optical member of a high index of refraction. The second optical member is formed on a depressed portion of the first optical member and has a diffractive surface, which is a contact surface of the second optical member with the first optical member and has a plurality of pitches formed on a refractive surface. The method for manufacturing the hybrid achromatic optical lens includes forming a profile of a diffractive surface having a plurality of pitches on a molding die whose one surface is the same as a profile of a refractive surface, forming a depression having the diffractive surface on a first optical member having a low index of refraction using the molding die, and coating a material having a high index of refraction on the depression, grinding a surface of material, and forming a second optical member having a high index of refraction.

公开(公告)号：US07663982B2

公开(公告)日：2010-02-16

申请号：US11512354

申请日：2006-08-30

申请人： Eun-hyoung Cho ,  Sung-dong Suh ,  Hae-sung Kim ,  Myung-bok Lee ,  Jin-seung Sohn

发明人： Eun-hyoung Cho ,  Sung-dong Suh ,  Hae-sung Kim ,  Myung-bok Lee ,  Jin-seung Sohn

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3163 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A light delivery module, a method of fabricating the same, a heat-assisted magnetic recording head using the light delivery module are provided. The light delivery module delivers light emitted from a light source. The light delivery module includes an optical waveguide having an inclined plane of an angle Φ with respect to an incident light axis to deliver an incident light, and a nano aperture changing an energy distribution of the light delivered through the inclined plane to generate an enhanced near-field. The heat-assisted magnetic recording head is mounted on one end of a slider with an air bearing surface to perform a recording operation on a recording medium. The heat-assisted magnetic recording head includes a magnetic path forming unit forming a magnetic field for recording, a light source emitting light for heating a predetermined region of a recording surface of the recording medium, and the light delivery module.

摘要翻译： 提供光输送模块，其制造方法，使用光输送模块的热辅助磁记录头。 光输送模块传送从光源发出的光。 光传输模块包括光波导，其具有相对于入射光轴的角度Phi的倾斜平面以输送入射光，并且纳米孔径改变通过倾斜平面传送的光的能量分布，以产生增强的近 -领域。 热辅助磁记录头安装在具有空气轴承表面的滑块的一端上，以在记录介质上执行记录操作。 热辅助磁记录头包括形成用于记录的磁场的磁路形成单元，用于加热记录介质的记录表面的预定区域的光源和光输送模块。

公开(公告)号：US07184386B2

公开(公告)日：2007-02-27

申请号：US10319469

申请日：2002-12-16

申请人： Petrov Nikolai ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Myung-bok Lee

发明人： Petrov Nikolai ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Myung-bok Lee

IPC分类号： G11B7/135

CPC分类号： G11B7/1384 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/1225 ,  G02B6/124 ,  G02B6/1245 ,  G02B6/30 ,  G11B7/124 ,  G11B7/1353 ,  G11B7/1359 ,  G11B7/1374 ,  G11B2007/13722

摘要： An integrated optical head is provided. In the integrated optical head, a light source emits light. A waveguide guides the light. An input coupler is located at one edge of the waveguide, and couples light emitted from the light source and transmits the coupled light to the waveguide. An output coupler is located at another edge of the waveguide, and couples light emitted from the waveguide and focuses the coupled light on an optical disc. A light path changing unit is installed on the waveguide, and changes the light path of light that has been reflected by the optical disc and then passed through the output coupler. An optical detector receives the light passed through the light path changing unit and converts the received light into an electrical signal in order to detect information from the optical disc Accordingly, an input coupling efficiency and an output coupling efficiency are improved, such that light loss is reduced. Thus, recording and reproduction of an optical head can be improved, and a light, compact, integrated optical head can be obtained.

摘要翻译： 提供集成光学头。 在集成光学头中，光源发光。 波导引导光。 输入耦合器位于波导的一个边缘处，并耦合从光源发射的光，并将耦合的光传输到波导。 输出耦合器位于波导的另一边缘，并且耦合从波导发射的光并将耦合的光聚焦在光盘上。 光路改变单元安装在波导上，并且改变由光盘反射的光然后通过输出耦合器的光路。 光检测器接收通过光路改变单元的光，并将接收的光转换成电信号，以便检测来自光盘的信息。因此，提高了输入耦合效率和输出耦合效率，使得光损耗为 减少 因此，可以提高光学头的记录和再现，并且可以获得光，紧凑的集成光学头。

公开(公告)号：US20060280057A1

公开(公告)日：2006-12-14

申请号：US11506840

申请日：2006-08-21

申请人： Petrov Nikolai ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Myung-bok Lee

发明人： Petrov Nikolai ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Myung-bok Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/1384 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/1225 ,  G02B6/124 ,  G02B6/1245 ,  G02B6/30 ,  G11B7/124 ,  G11B7/1353 ,  G11B7/1359 ,  G11B7/1374 ,  G11B2007/13722

摘要： An integrated optical head is provided. In the integrated optical head, a light source emits light. A waveguide guides the light. An input coupler is located at one edge of the waveguide, and couples light emitted from the light source and transmits the coupled light to the waveguide. An output coupler is located at another edge of the waveguide, and couples light emitted from the waveguide and focuses the coupled light on an optical disc. A light path changing unit is installed on the waveguide, and changes the light path of light that has been reflected by the optical disc and then passed through the output coupler. An optical detector receives the light passed through the light path changing unit and converts the received light into an electrical signal in order to detect information from the optical disc. Accordingly, an input coupling efficiency and an output coupling efficiency are improved, such that light loss is reduced. Thus, recording and reproduction of an optical head can be improved, and a light, compact, integrated optical head can be obtained.

摘要翻译： 提供集成光学头。 在集成光学头中，光源发光。 波导引导光。 输入耦合器位于波导的一个边缘处，并耦合从光源发射的光，并将耦合的光传输到波导。 输出耦合器位于波导的另一边缘，并且耦合从波导发射的光并将耦合的光聚焦在光盘上。 光路改变单元安装在波导上，并且改变由光盘反射的光然后通过输出耦合器的光路。 光检测器接收通过光路改变单元的光并将接收的光转换成电信号，以便检测来自光盘的信息。 因此，提高了输入耦合效率和输出耦合效率，使得光损失减小。 因此，可以提高光学头的记录和再现，并且可以获得光，紧凑的集成光学头。

公开(公告)号：US06994808B2

公开(公告)日：2006-02-07

申请号：US10419080

申请日：2003-04-21

申请人： Myung-bok Lee ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Young-pil Park

发明人： Myung-bok Lee ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Young-pil Park

IPC分类号： B29D11/00

CPC分类号： G02B3/08 ,  G02B5/1814

摘要： A planar lens capable of compensating for chromatic aberration and which is easy to manufacture and enables easy assembling of optical pickups and a method for fabricating the planar lens are provided. The planar lens includes a transparent substrate with a lens cavity in a surface of the transparent substrate, and a lens element formed in the lens cavity with a first refracting surface in contact with the bottom of the lens cavity and a second diffracting surface having a diffraction grating opposite to the first refracting surface.

摘要翻译： 提供能够补偿色像差并容易制造并且能够容易地组装光学拾取器的平面透镜和用于制造平面透镜的方法。 平面透镜包括在透明基板的表面中具有透镜腔的透明基板和形成在透镜腔中的透镜元件，其具有与透镜腔的底部接触的第一折射表面和具有衍射的第二衍射面 光栅与第一折射表面相对。

公开(公告)号：US07710686B2

公开(公告)日：2010-05-04

申请号：US11643761

申请日：2006-12-22

申请人： Hae-sung Kim ,  Jin-seung Sohn ,  Myung-bok Lee ,  Byung-kyu Lee ,  Sung-dong Suh ,  Eun-hyoung Cho

发明人： Hae-sung Kim ,  Jin-seung Sohn ,  Myung-bok Lee ,  Byung-kyu Lee ,  Sung-dong Suh ,  Eun-hyoung Cho

IPC分类号： G11B5/127

CPC分类号： G11B5/127 ,  G11B5/02 ,  G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

摘要： A heat-assisted magnetic recording head (HAMR) head includes a magnetic recording head including a recording pole for applying a magnetic recording field on a magnetic recording medium and a return pole magnetically connected to the recording pole to form a magnetic path, a light source for emitting light, and an optical transmission module including an photonic crystal waveguide disposed at a side of the magnetic recording head to guide light incident from the light source and a nano aperture for enhancing an optical field by varying an intensity distribution of the light guided through the photonic crystal waveguide.

摘要翻译： 热辅助磁记录头（HAMR）头包括磁记录头，磁记录头包括用于在磁记录介质上施加磁记录场的记录磁极和与记录磁极磁连接以形成磁路的返回磁极，光源 以及光传输模块，其包括设置在磁记录头侧的光子晶体波导以引导从光源入射的光，以及纳米孔径，用于通过改变导光的光的强度分布来增强光场 光子晶体波导。

公开(公告)号：US20070195415A1

公开(公告)日：2007-08-23

申请号：US11785039

申请日：2007-04-13

申请人： Eun-hyoung Cho ,  Myung-bok Lee ,  Jin-seung Sohn

发明人： Eun-hyoung Cho ,  Myung-bok Lee ,  Jin-seung Sohn

IPC分类号： G02B27/44

CPC分类号： G02B5/1814 ,  Y10S359/90

摘要： A hybrid achromatic optical lens having a high numerical aperture whose chromatic aberration is removed and a method for manufacturing the same are provided. The hybrid achromatic optical lens includes a first optical member of a low index of refraction and a second optical member of a high index of refraction. The second optical member is formed on a depressed portion of the first optical member and has a diffractive surface, which is a contact surface of the second optical member with the first optical member and has a plurality of pitches formed on a refractive surface. The method for manufacturing the hybrid achromatic optical lens includes forming a profile of a diffractive surface having a plurality of pitches on a molding die whose one surface is the same as a profile of a refractive surface, forming a depression having the diffractive surface on a first optical member having a low index of refraction using the molding die, and coating a material having a high index of refraction on the depression, grinding a surface of material, and forming a second optical member having a high index of refraction.

摘要翻译： 提供具有高数值孔径的混合消色差光学透镜及其制造方法。 混合消色差光学透镜包括低折射率的第一光学构件和高折射率的第二光学构件。 第二光学构件形成在第一光学构件的凹陷部分上，并且具有作为第二光学构件与第一光学构件的接触表面并且具有形成在折射表面上的多个间距的衍射面。 混合消色差光学透镜的制造方法包括在成型模具上形成具有多个间距的衍射面的轮廓，其一个表面与折射表面的轮廓相同，形成具有衍射面的凹陷部 使用成型模具具有低折射率的光学构件，并且在凹陷上涂覆具有高折射率的材料，研磨材料的表面，以及形成具有高折射率的第二光学构件。

公开(公告)号：US20070159718A1

公开(公告)日：2007-07-12

申请号：US11643761

申请日：2006-12-22

申请人： Hae-sung Kim ,  Jin-seung Sohn ,  Myung-bok Lee ,  Byung-kyu Lee ,  Sung-dong Suh ,  Eun-hyoung Cho

发明人： Hae-sung Kim ,  Jin-seung Sohn ,  Myung-bok Lee ,  Byung-kyu Lee ,  Sung-dong Suh ,  Eun-hyoung Cho

IPC分类号： G11B5/127 ,  G11B5/02

CPC分类号： G11B5/127 ,  G11B5/02 ,  G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

摘要： A heat-assisted magnetic recording head (HAMR) head includes a magnetic recording head including a recording pole for applying a magnetic recording field on a magnetic recording medium and a return pole magnetically connected to the recording pole to form a magnetic path, a light source for emitting light, and an optical transmission module including an photonic crystal waveguide disposed at a side of the magnetic recording head to guide light incident from the light source and a nano aperture for enhancing an optical field by varying an intensity distribution of the light guided through the photonic crystal waveguide.

摘要翻译： 热辅助磁记录头（HAMR）头包括磁记录头，磁记录头包括用于在磁记录介质上施加磁记录场的记录磁极和与记录磁极磁连接以形成磁路的返回磁极，光源 以及光传输模块，其包括设置在磁记录头侧的光子晶体波导以引导从光源入射的光，以及纳米孔径，用于通过改变导光的光的强度分布来增强光场 光子晶体波导。

公开(公告)号：US07194152B2

公开(公告)日：2007-03-20

申请号：US11203375

申请日：2005-08-15

申请人： Myung-bok Lee ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Hae-sung Kim

发明人： Myung-bok Lee ,  Jin-seung Sohn ,  Eun-hyoung Cho ,  Hae-sung Kim

IPC分类号： G02B6/12

CPC分类号： G11B7/1362 ,  G02B5/08 ,  G02B6/4214 ,  G11B7/123 ,  G11B7/22

摘要： A micro mirror and a method of manufacturing the same are provided. The micro mirror includes a silicon substrate having a first slant plane and a second slant plane that face each other, and a clad layer including a first mirror surface and a second mirror surface respectively formed on the first slant plane and the second slant plane, wherein the clad layer reflects light.

摘要翻译： 提供微镜及其制造方法。 微反射镜包括具有彼此面对的第一倾斜平面和第二倾斜平面的硅衬底，以及包括分别形成在第一倾斜平面和第二倾斜平面上的第一镜面和第二镜面的包层，其中 包层反射光。