公开(公告)号：US20090168629A1

公开(公告)日：2009-07-02

申请号：US12233066

申请日：2008-09-18

申请人： Jae-cheol BAE ,  Taek-seong Jeong ,  Tae-Kyung Kim ,  Da-hye Chol

发明人： Jae-cheol BAE ,  Taek-seong Jeong ,  Tae-Kyung Kim ,  Da-hye Chol

IPC分类号： G11B7/00

CPC分类号： G11B7/00781 ,  G11B7/0065

摘要： A holographic information recording and/or reproducing apparatus including: a light source unit emitting reference light and signal light; a first optical path guiding unit guiding the lights to cross; a second optical path guiding unit including a first polarization converter located on an optical path of one of the reference and signal lights, a first polarization beam splitter located at a crossing point of the reference light and the signal light, an optical path converter guiding the reference light and the signal light so that they cross again, a second polarization converter located on an optical path of the signal light before the signal light crosses the reference light, and a second polarization beam splitter uniting the optical paths of the reference light and the signal light; and an objective lens unit illuminating the reference light and the signal light onto one side of a holographic information storage medium.

摘要翻译： 一种全息信息记录和/或再现装置，包括：发射参考光和信号光的光源单元; 引导灯交叉的第一光路引导单元; 第二光路引导单元，其包括位于参考信号光和信号光之一的光路上的第一偏振转换器，位于参考光和信号光的交叉点处的第一偏振分束器，引导 参考光和信号光使得它们再次交叉，位于信号光穿过参考光之前的信号光的光路上的第二偏振转换器，以及将参考光的光路和 信号灯; 以及将参考光和信号光照射到全息信息存储介质的一侧上的物镜单元。

公开(公告)号：US08213287B2

公开(公告)日：2012-07-03

申请号：US12136285

申请日：2008-06-10

申请人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tae-kyung Kim ,  Sung-hee Hwang ,  Moon-Il Jung

发明人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tae-kyung Kim ,  Sung-hee Hwang ,  Moon-Il Jung

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/0065 ,  G11B7/0908 ,  G11B7/1392

摘要： An optical pickup of a holographic data recording/reproducing apparatus that emits light to a reflective holographic data storage medium in which a substrate, a reflection layer, a recording layer, and a cover layer are sequentially stacked, and receives the emitted light, the optical pickup including: a first light source unit to emit, during a recording operation, a signal beam having a first polarization and a reference beam having a second polarization perpendicular to the first polarization along the same optical path; and a main lens unit having a refractivity that varies according to a polarization of a passing light, so as to cause the signal beam to be reflected from the reflection layer then focused on a focal point, and to cause the reference beam to pass through the cover layer then be directly focused on the focal point.

摘要翻译： 一种全息数据记录/再现装置的光学拾取器，其向反射全息数据存储介质发射光，其中衬底，反射层，记录层和覆盖层顺序地堆叠，并且接收发射的光，光学 拾取器包括：第一光源单元，在记录操作期间，沿着相同的光路发射具有第一偏振的信号光束和具有垂直于第一偏振的第二偏振的参考光束; 以及具有根据通过光的偏振而变化的折射率的主透镜单元，以使信号光从反射层反射然后聚焦在焦点上，并使参考光束通过 覆盖层然后直接聚焦在焦点上。

公开(公告)号：US20090175149A1

公开(公告)日：2009-07-09

申请号：US12211934

申请日：2008-09-17

申请人： Jae-cheol Bae ,  Taek-seong Jeong ,  Tae-kyung Kim

发明人： Jae-cheol Bae ,  Taek-seong Jeong ,  Tae-kyung Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/1367 ,  G03H1/04 ,  G03H2240/51 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/0909 ,  G11B7/1263 ,  G11B2007/13727

摘要： A holographic information recording and/or reproducing apparatus includes a light pickup optical system and a recording power control unit. The light pickup optical system illuminates reference light and signal light onto an information storing medium. The recording power control unit controls the light pickup optical system such that recording power of the reference light is the same as that of signal light.

摘要翻译： 全息信息记录和/或再现装置包括光拾取光学系统和记录功率控制单元。 光拾取光学系统将参考光照亮并将光信号发射到信息存储介质上。 记录功率控制单元控制光拾取光学系统，使得参考光的记录功率与信号光的记录功率相同。

公开(公告)号：US08018813B2

公开(公告)日：2011-09-13

申请号：US12233066

申请日：2008-09-18

申请人： Jae-cheol Bae ,  Taek-seong Jeong ,  Tae-kyung Kim ,  Da-hye Chol

发明人： Jae-cheol Bae ,  Taek-seong Jeong ,  Tae-kyung Kim ,  Da-hye Chol

IPC分类号： G11B7/00 ,  G03H1/00

CPC分类号： G11B7/00781 ,  G11B7/0065

摘要： A holographic information recording and/or reproducing apparatus including: a light source unit emitting reference light and signal light; a first optical path guiding unit guiding the lights to cross; a second optical path guiding unit including a first polarization converter located on an optical path of one of the reference and signal lights, a first polarization beam splitter located at a crossing point of the reference light and the signal light, an optical path converter guiding the reference light and the signal light so that they cross again, a second polarization converter located on an optical path of the signal light before the signal light crosses the reference light, and a second polarization beam splitter uniting the optical paths of the reference light and the signal light; and an objective lens unit illuminating the reference light and the signal light onto one side of a holographic information storage medium.

摘要翻译： 一种全息信息记录和/或再现装置，包括：发射参考光和信号光的光源单元; 引导灯交叉的第一光路引导单元; 第二光路引导单元，其包括位于参考信号光和信号光之一的光路上的第一偏振转换器，位于参考光和信号光的交叉点处的第一偏振分束器，引导 参考光和信号光使得它们再次交叉，位于信号光穿过参考光之前的信号光的光路上的第二偏振转换器，以及将参考光的光路和 信号灯; 以及将参考光和信号光照射到全息信息存储介质的一侧上的物镜单元。

公开(公告)号：US08270051B2

公开(公告)日：2012-09-18

申请号：US12503192

申请日：2009-07-15

申请人： Taek-seong Jeong ,  Tae-kyoung Kim ,  Jae-cheol Bae

发明人： Taek-seong Jeong ,  Tae-kyoung Kim ,  Jae-cheol Bae

IPC分类号： G03H1/02

CPC分类号： G11B7/0065 ,  G11B7/00772 ,  G11B7/083 ,  G11B2007/0009

摘要： A method of recording holographic information includes recording a hologram mark and a homogeneous mark in a holographic data storage medium with a volume to alternatively locate the hologram mark and the homogeneous mark. The hologram mark has a varied refractive index distribution due to constructive/destructive interferences between two light beams and indicates information, while the homogeneous mark has a more uniform refractive index distribution than the hologram mark.

摘要翻译： 记录全息信息的方法包括在具有体积的全息数据存储介质中记录全息标记和均匀标记，以交替地定位全息标记和均匀标记。 由于两个光束之间的建构性/破坏性干扰，全息图标记具有不同的折射率分布，并且指示信息，而均匀标记具有比全息标记更均匀的折射率分布。

公开(公告)号：US20100053710A1

公开(公告)日：2010-03-04

申请号：US12548653

申请日：2009-08-27

申请人： Jae-cheol BAE ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

发明人： Jae-cheol BAE ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

IPC分类号： G03H1/02

CPC分类号： G11B7/08511 ,  G03H2250/34 ,  G03H2250/42 ,  G11B7/00781 ,  G11B7/083 ,  G11B7/1275 ,  G11B7/24038 ,  G11B7/24044

摘要： An apparatus for recording/reproducing holographic data and a method of adjusting a position of a recording layer. While an objective lens focusing first and second lights having different wavelengths on a holographic data storage medium including first and second reflective layers reciprocatingly moves in a direction of an optical axis, a focus movement unit, which moves a focus of the second light in the direction of the optical axis until a time difference between a first detection signal generated when the first light is reflected from the first reflective layer and a second detection signal generated when the second light is reflected from the second reflective layer becomes a value corresponding to a position of a desired recording layer, is controlled to move a focal position of the second light so that the focal position of the second light can be adjusted to the position of a desired recording layer.

摘要翻译： 用于记录/再现全息数据的装置和调节记录层的位置的方法。 虽然在包括第一和第二反射层的全息数据存储介质上聚焦具有不同波长的第一和第二光的物镜在光轴的方向上往复运动，但是聚焦移动单元使第二光的焦点朝向 直到当第一光从第一反射层反射时产生的第一检测信号与当第二光从第二反射层反射时产生的第二检测信号之间的时间差变为对应于第二反射层的位置的值 控制所需的记录层，以移动第二光的焦点位置，使得可以将第二光的焦点位置调整到所需记录层的位置。

公开(公告)号：US08009542B2

公开(公告)日：2011-08-30

申请号：US12325002

申请日：2008-11-28

申请人： Taek-seong Jeong ,  Jae-cheol Bae

发明人： Taek-seong Jeong ,  Jae-cheol Bae

IPC分类号： G11B7/00

CPC分类号： G11B7/083 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/0938 ,  G11B7/1275 ,  G11B7/1369 ,  G11B7/1395 ,  G11B7/24038 ,  G11B7/24044

摘要： A holographic information recording and/or reproducing apparatus includes: a light source to emit light; a polarization conversion device to form a polarized signal beam and an orthogonal polarized reference beam; an optical path forming optical system to separate the optical paths of the signal beam and the reference beam; a focus adjustment optical system disposed on the optical path of at least one of the signal beam and the reference beam, and to vary a position of a focus of at least one of the signal beam and the reference beam in a depth direction of the holographic information storage medium; an objective lens to focus the signal beam and the reference beam in the holographic information storage medium, and form an interference pattern to record information; and a 4f relay system disposed on an optical path between the focus adjustment optical system and the objective lens.

摘要翻译： 全息信息记录和/或再现装置包括：发光的光源; 偏振转换装置，用于形成偏振信号光束和正交偏振参考光束; 用于分离信号光束和参考光束的光路的光路形成光学系统; 设置在所述信号光束和所述参考光束中的至少一个的光路上的聚焦调整光学系统，并且在所述全息图的深度方向上改变所述信号光束和所述参考光束中的至少一个的焦点的位置 信息存储介质; 物镜，用于将信号光束和参考光束聚焦在全息信息存储介质中，并形成干涉图案以记录信息; 以及设置在聚焦调节光学系统和物镜之间的光路上的4f中继系统。

公开(公告)号：US08149676B2

公开(公告)日：2012-04-03

申请号：US12109619

申请日：2008-04-25

申请人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tatsuhiro Otsuka ,  Hyun-soo Park ,  Young-min Cheong

发明人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tatsuhiro Otsuka ,  Hyun-soo Park ,  Young-min Cheong

IPC分类号： G11B7/00

CPC分类号： G11B7/139 ,  G11B7/0065 ,  G11B7/1374

摘要： A method and apparatus for recording and/or reproducing holographic data and a holographic information storage medium, wherein the apparatus for recording and/or reproducing holographic information includes an optical pickup emitting light onto a holographic information storage medium and receiving the emitted light. The optical pickup includes: a light source unit emitting a signal beam and a reference beam in a recording mode; and a focusing optical system focusing the signal beam and the reference beam on one focal point in the holographic information storage medium so that information can be recorded by using an interference pattern formed along a depth direction of the holographic information storage medium in the vicinity of the focal point, wherein the numerical aperture of the focusing optical system for the signal beam is different from the numerical aperture of the focusing optical system for the reference beam.

摘要翻译： 一种用于记录和/或再现全息数据和全息信息存储介质的方法和装置，其中用于记录和/或再现全息信息的装置包括将光发送到全息信息存储介质上并接收发射的光的光学拾取器。 光拾取器包括：以记录模式发射信号光束和参考光束的光源单元; 以及将信号光束和参考光束聚焦在全息信息存储介质中的一个焦点上的聚焦光学系统，以便可以通过使用沿着全息信息存储介质的深度方向形成的干涉图案来记录信息 焦点，其中用于信号束的聚焦光学系统的数值孔径与用于参考光束的聚焦光学系统的数值孔径不同。

公开(公告)号：US20090174920A1

公开(公告)日：2009-07-09

申请号：US12325002

申请日：2008-11-28

申请人： Taek-seong Jeong ,  Jae-cheol Bae

发明人： Taek-seong Jeong ,  Jae-cheol Bae

IPC分类号： G03H1/02

CPC分类号： G11B7/083 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/0938 ,  G11B7/1275 ,  G11B7/1369 ,  G11B7/1395 ,  G11B7/24038 ,  G11B7/24044

摘要： A holographic information recording and/or reproducing apparatus includes: a light source to emit light; a polarization conversion device to form a polarized signal beam and an orthogonal polarized reference beam; an optical path forming optical system to separate the optical paths of the signal beam and the reference beam; a focus adjustment optical system disposed on the optical path of at least one of the signal beam and the reference beam, and to vary a position of a focus of at least one of the signal beam and the reference beam in a depth direction of the holographic information storage medium; an objective lens to focus the signal beam and the reference beam in the holographic information storage medium, and form an interference pattern to record information; and a 4f relay system disposed on an optical path between the focus adjustment optical system and the objective lens.

摘要翻译： 全息信息记录和/或再现装置包括：发光的光源; 偏振转换装置，用于形成偏振信号光束和正交偏振参考光束; 用于分离信号光束和参考光束的光路的光路形成光学系统; 设置在所述信号光束和所述参考光束中的至少一个的光路上的聚焦调整光学系统，并且在所述全息图的深度方向上改变所述信号光束和所述参考光束中的至少一个的焦点的位置 信息存储介质; 物镜，用于将信号光束和参考光束聚焦在全息信息存储介质中，并形成干涉图案以记录信息; 以及设置在聚焦调节光学系统和物镜之间的光路上的4f中继系统。

公开(公告)号：US20090073851A1

公开(公告)日：2009-03-19

申请号：US12109619

申请日：2008-04-25

申请人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tatsuhiro Otsuka ,  Hyun-soo Park ,  Young-min Cheong

发明人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tatsuhiro Otsuka ,  Hyun-soo Park ,  Young-min Cheong

IPC分类号： G11B7/00 ,  G11B7/26

CPC分类号： G11B7/139 ,  G11B7/0065 ,  G11B7/1374

摘要： A method and apparatus for recording and/or reproducing holographic data and a holographic information storage medium, wherein the apparatus for recording and/or reproducing holographic information includes an optical pickup emitting light onto a holographic information storage medium and receiving the emitted light. The optical pickup includes: a light source unit emitting a signal beam and a reference beam in a recording mode; and a focusing optical system focusing the signal beam and the reference beam on one focal point in the holographic information storage medium so that information can be recorded by using an interference pattern formed along a depth direction of the holographic information storage medium in the vicinity of the focal point, wherein the numerical aperture of the focusing optical system for the signal beam is different from the numerical aperture of the focusing optical system for the reference beam.

摘要翻译： 一种用于记录和/或再现全息数据和全息信息存储介质的方法和装置，其中用于记录和/或再现全息信息的装置包括将光发送到全息信息存储介质上并接收发射的光的光学拾取器。 光拾取器包括：以记录模式发射信号光束和参考光束的光源单元; 以及将信号光束和参考光束聚焦在全息信息存储介质中的一个焦点上的聚焦光学系统，以便可以通过使用沿着全息信息存储介质的深度方向形成的干涉图案来记录信息 焦点，其中用于信号束的聚焦光学系统的数值孔径与用于参考光束的聚焦光学系统的数值孔径不同。