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：US20060076697A1

公开(公告)日：2006-04-13

申请号：US11274246

申请日：2005-11-16

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： G02B1/00

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.

公开(公告)号：US06937396B2

公开(公告)日：2005-08-30

申请号：US10647510

申请日：2003-08-26

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

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

IPC分类号： G02B13/00 ,  G02B1/12 ,  G02B3/08 ,  G02B5/18 ,  G02B13/18 ,  G02B27/42 ,  G11B7/135

CPC分类号： G02B3/08 ,  G02B5/1814 ,  G02B27/4238 ,  G11B7/1367 ,  G11B7/1374

摘要： A hybrid lens with a high numerical aperture is described. The hybrid lens comprises a refractive surface that refracts incident light and a diffractive surface that diffracts light exiting the lens, the diffracting surface designed by a sag satisfying the following Equation: s ⁢   ⁢ a ⁢   ⁢ g = f D + m ⁢   ⁢ λ - f D   ⁢ 2 + r   ⁢ 2 n - 1 , wherein fD is a distance from a center peak to a focal point of the hybrid lens, r is a height from a center axis to each peak of the hybrid lens, n is the refractive index of the hybrid lens, λ is the wavelength of incident light and m is an integer. The hybrid lens is small and lightweight and capable of removing chromatic aberration.

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：US20050025027A1

公开(公告)日：2005-02-03

申请号：US10841973

申请日：2004-05-10

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

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

IPC分类号： G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  H01L31/12 ,  G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/123 ,  G11B7/22

摘要： An integrated optical pickup and a manufacturing method thereof, and an optical information storage system including the pickup. The integrated optical pickup includes a light source; a main photo-detector, which receives light emitted from the light source and reflected from an optical information storage medium; a light-collecting and optical path separating member, which focuses light emitted from the light source on the optical information storage medium and separates an optical path of light incident on the optical information storage medium from an optical path of light reflected from the optical information storage medium; and an optical bench, which is coupled to the light-collecting and optical path separating member, an optical path being formed between the light source and the main photo-detector, and the light-collecting and optical path separating member, and the optical bench and the light-collecting and optical path separating member being respectively formed on a wafer and then obtained by being separated into a plurality of assemblies.

摘要翻译： 一种集成光学拾取器及其制造方法，以及包括拾取器的光学信息存储系统。 集成光学拾取器包括光源; 主光检测器，其接收从光源发射并从光信息存储介质反射的光; 聚光和光路分离构件，其将从光源发射的光聚焦在光学信息存储介质上，并将入射在光学信息存储介质上的光的光路与光学信息存储器反射的光的光路分离 中; 以及耦合到集光和光路分离构件的光学台，形成在光源和主光检测器之间的光路，以及聚光和光路分离构件以及光学台 并且集光和光路分离部件分别形成在晶片上，然后通过分离成多个组件获得。

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：US07428194B2

公开(公告)日：2008-09-23

申请号：US10986838

申请日：2004-11-15

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/1378 ,  G11B7/124 ,  G11B7/1353

摘要： An optical pickup and an optical recording and/or reproducing apparatus using the optical pickup are provided. The optical pickup includes: a light source; an optical bench on which the light source is mounted; a focusing member including an objective lens, focusing light emitted from the light source to form a light spot on an optical information storage medium; and an optical path forming member having a transparent block that includes a light entrance/exit surface on which the optical bench and the focusing member are arranged, a first reflection surface, and a second reflection surface opposing the first reflection surface, where the optical path forming member directs the light emitted from the light source toward the objective lens by reflecting the light emitted from the light source on the first and second reflection surfaces. The optical pickup satisfies the requirement for smaller, slimmer design and can be integrated using semiconductor manufacturing processes.

摘要翻译： 提供了使用光学拾取器的光学拾取器和光学记录和/或再现装置。 光学拾取器包括：光源; 安装光源的光台; 聚焦构件，包括物镜，聚焦从光源发射的光以在光学信息存储介质上形成光斑; 以及具有透明块的光路形成构件，所述透光块包括配置有所述光学台和所述聚焦构件的光入射/出射面，第一反射面和与所述第一反射面相对的第二反射面， 成形构件通过将从光源发射的光反射在第一和第二反射面上而将从光源发射的光朝向物镜引导。 光学拾取器满足更小，更薄的设计的要求，并且可以使用半导体制造工艺进行集成。

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。