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1. 发明申请

US20090154325A1 OBJECTIVE LENS AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE HAVING THE SAME 失效
标题翻译：目标镜头和光信息记录/再现设备
公开(公告)号：US20090154325A1
公开(公告)日：2009-06-18
申请号：US12330861
申请日：2008-12-09
申请人： Satoshi INOUE , Daisuke KOREEDA , Shuichi TAKEUCHI
发明人： Satoshi INOUE , Daisuke KOREEDA , Shuichi TAKEUCHI
IPC分类号： G11B7/00
CPC分类号： G11B7/13922 , G11B7/0908 , G11B7/1374 , G11B2007/0006
摘要： There is provided an objective lens for information recording/reproducing for three types of optical discs, which includes a first area contributing to converging a third light beam onto a record surface of a third optical disc. The first area includes a phase shift structure having refractive surface zones concentrically formed about a predetermined axis. The phase shift structure includes first and second step groups. The first step group is configured such that an optical path length difference ΔOPD1 (nm) given by each step of the first step group to a first light beam satisfies a condition: 2N1+1.10
摘要翻译：提供了一种用于三种类型的光盘的信息记录/再现的物镜，其包括有助于将第三光束会聚到第三光盘的记录表面上的第一区域。第一区域包括具有围绕预定轴线同心地形成的折射表面区域的相移结构。相移结构包括第一和第二步骤组。第一步骤组被配置为使得由第一步骤组的每个步骤给出的第一光束的光程长度差ΔOPD1（nm）满足条件：2N1 + 1.10 <|ΔOPD1/λ1| <2N1 + 1.40，其中 N1是整数或零，并且第二步骤组被配置为使得由第二步骤组的每个步骤给予的第一光束的光程长度差ΔOPD2（nm）满足条件：2N2-0.10 <|ΔOPD2/ lambda1 | <2N2 + 0.10，其中N2是整数。

2. 发明申请

US20110228664A1 OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND OBJECTIVE OPTICAL SYSTEM FOR THE SAME 失效
标题翻译：光信息记录/再现设备和目标光学系统
公开(公告)号：US20110228664A1
公开(公告)日：2011-09-22
申请号：US13050146
申请日：2011-03-17
申请人： Daisuke KOREEDA , Shuichi TAKEUCHI
发明人： Daisuke KOREEDA , Shuichi TAKEUCHI
IPC分类号： G11B7/135 , G11B7/125
CPC分类号： G11B7/1275 , G02B5/1895 , G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An objective optical system for information recording/reproducing, at least one of optical surfaces of the objective optical system comprising a diffraction surface including a first region contributing to converging first, second and third beams and including a diffraction structure formed such that use diffraction orders for the first, second and third beams are 1st-orders and a condition 0.03
摘要翻译：一种用于信息记录/再现的物镜光学系统，所述物镜光学系统的光学表面中的至少一个包括衍射表面，所述衍射表面包括有助于会聚第一，第二和第三光束的第一区域，并且包括衍射结构，第一，第二和第三光束为1阶，满足条件0.03 <（λB11-λ1）/λ1<0.40; 第二区域有助于仅会聚第一和第二光束，并且包括形成为使得衍射级数为1级并且条件为-0.35 <（λB12-λB11）/λ1<0.35的衍射结构; 以及第三区域，仅有助于仅会聚第一光束，并且包括衍射结构，其形成为使得第一光束的使用衍射级为奇数阶，并且条件为：-0.23

3. 发明申请

US20090080319A1 OBJECTIVE OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE HAVING THE SAME 审中-公开
公开(公告)号：US20090080319A1
公开(公告)日：2009-03-26
申请号：US12233048
申请日：2008-09-18
申请人： Daisuke KOREEDA , Shuichi TAKEUCHI , Yoshiyuki TASHIRO
发明人： Daisuke KOREEDA , Shuichi TAKEUCHI , Yoshiyuki TASHIRO
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1367 , G11B7/13922 , G11B2007/0006
摘要： There is provided an objective optical system including an optical element having a phase shift structure, and a single-element objective lens made of resin, wherein the phase shift structure includes a plurality of refractive surface zones, the phase shift structure includes a first area to contribute to converging at least the third light beam on a record surface of the third optical disc, the first area includes at least two types of steps, each of which is formed at a boundary between adjacent ones of the plurality of refractive surface zones, the at least two types of steps gives optical path length differences different from each other to an incident light beam, the annular zone structure satisfies following conditions: 0.01

4. 发明申请

US20090016194A1 Optical Pickup Device 有权
标题翻译：光学拾取装置
公开(公告)号：US20090016194A1
公开(公告)日：2009-01-15
申请号：US12146883
申请日：2008-06-26
申请人： Daisuke KOREEDA , Shuichi TAKEUCHI
发明人： Daisuke KOREEDA , Shuichi TAKEUCHI
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1367 , G11B7/1369 , G11B7/1374 , G11B7/13927 , G11B2007/0006
摘要： An optical pickup device includes a first light source emitting first light with a first wavelength, a second light source emitting second light with a second wavelength, a third light source emitting third light with a third wavelength, an objective lens having a step structure, the objective lens being disposed to satisfy predetermined conditions, at least one first coupling lens making the first light and the second light incident onto the objective lens as converged light, a second coupling lens making the third light incident onto the objective lens as diverging light, and a liquid crystal aberration correcting element.
摘要翻译：一种光学拾取装置包括：发射具有第一波长的第一光的第一光源，发射具有第二波长的第二光的第二光源;发射具有第三波长的第三光的第三光源;具有阶梯结构的物镜; 将物镜设置为满足预定条件，使作为会聚光入射到物镜上的第一光和第二光的至少一个第一耦合透镜，使作为发散光入射到物镜上的第三光的第二耦合透镜，以及液晶像差校正元件。

5. 发明申请

US20080089207A1 Optical Information Recording/Reproducing Device and Objective Lens for the Same 失效
公开(公告)号：US20080089207A1
公开(公告)日：2008-04-17
申请号：US11873105
申请日：2007-10-16
申请人： Daisuke KOREEDA , Shuichi TAKEUCHI
发明人： Daisuke KOREEDA , Shuichi TAKEUCHI
IPC分类号： G11B7/00
CPC分类号： G11B7/13922 , G11B7/1374 , G11B2007/0006 , G11B2007/13727
摘要： There is provided an objective lens used for an optical information recording/reproducing device for recording information to and/or reproducing information from two types of optical discs, by selectively using one of two types of substantially collimated light beams including first and second light beams. When wavelengths of the first and second light beams are respectively represented by λ1 (nm) and λ2 (nm), λ1

6. 发明申请

US20080165436A1 OBJECTIVE LENS 有权
标题翻译：物镜
公开(公告)号：US20080165436A1
公开(公告)日：2008-07-10
申请号：US12046751
申请日：2008-03-12
申请人： Daisuke KOREEDA , Koichi MARUYAMA , Shuichi TAKEUCHI
发明人： Daisuke KOREEDA , Koichi MARUYAMA , Shuichi TAKEUCHI
IPC分类号： G02B3/02
CPC分类号： G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： There is provided an objective lens used for a plurality of types of optical discs having a front surface and a rear surface, each of which includes an inner region and an outer region. The outer region has a surface shape which suppresses a coma caused when a beam used for a first optical disc is incident thereon obliquely with respect to an optical axis of the objective lens. The inner region is configured such that, at a boundary position between the inner region and the outer region, the coma caused when a beam used for a second optical disc is incident on the inner region obliquely at a first angle with respect to the optical axis is less than the coma caused when the beam used for the second optical disc is incident on the outer region obliquely at the first angle with respect to the optical axis. Further, an inclination θ2A of the inner region and an inclination θ2B of the outer region of the rear surface satisfy a condition: −2.5
摘要翻译：提供了一种用于具有前表面和后表面的多种类型的光盘的物镜，每个光盘包括内部区域和外部区域。外部区域具有抑制当用于第一光盘的光束相对于物镜的光轴倾斜入射时引起的彗差的表面形状。内部区域被构造成使得在内部区域和外部区域之间的边界位置处，当用于第二光盘的光束相对于光轴以第一角度倾斜地入射到内部区域时引起的彗形像小于当用于第二光盘的光束相对于光轴以第一角度倾斜地入射到外部区域时引起的昏迷。此外，后表面的外部区域的内部区域的倾斜度θ2A和倾斜度θ2B2满足条件：-2.5°2B < /SUB>-theta_2A<0.0。。。（1）。

7. 发明申请

US20090052305A1 OPTICAL PICK-UP 有权
公开(公告)号：US20090052305A1
公开(公告)日：2009-02-26
申请号：US12195639
申请日：2008-08-21
申请人： Daisuke KOREEDA , Shuichi TAKEUCHI
发明人： Daisuke KOREEDA , Shuichi TAKEUCHI
IPC分类号： G11B7/135
CPC分类号： G11B7/13922 , G11B7/1353 , G11B7/1374 , G11B7/1376 , G11B2007/0006
摘要： There is provided an optical pick-up including first to third light sources respectively emitting first to third light beams, a first coupling lens, and an objective lens formed to converge each of the first, second and third light beams onto the first, second and third optical discs, respectively. The objective lens has a step structure including a plurality of concentrically formed refractive surface zones divided by steps, the step structure having a function of giving, at each step, an optical path length difference of approximately 2λ1 to the first light beam. The first coupling lens causes the first light beam to be incident on the objective lens as a converging beam. The objective lens is positioned to satisfy a condition: −0.35
摘要翻译：提供了包括分别发射第一至第三光束的第一至第三光源的光学拾取器，第一耦合透镜和物镜，其将第一，第二和第三光束中的每一个会聚到第一，第二和第二光束上，第三光盘。物镜具有阶梯结构，其包括多个同心形成的折射表面区域，该台阶结构具有在每个步骤中给予大约2λ1与第一光束的光程差的功能。第一耦合透镜使第一光束作为会聚光束入射到物镜上。物镜被定位成满足条件：<？in-line-formula description =“In-line Formulas”end =“lead”？> -0.35

8. 发明申请

US20070286054A1 OBJECTIVE LENS FOR OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE 审中-公开
标题翻译：用于光信息记录/再现设备的目标镜头
公开(公告)号：US20070286054A1
公开(公告)日：2007-12-13
申请号：US11762096
申请日：2007-06-13
申请人： Tomokazu KOIZUMI , Shuichi TAKEUCHI , Daisuke KOREEDA
发明人： Tomokazu KOIZUMI , Shuichi TAKEUCHI , Daisuke KOREEDA
IPC分类号： G11B7/00
CPC分类号： G02B27/1013 , G02B27/144 , G02B27/145 , G11B7/1353 , G11B7/1374 , G11B2007/0006
摘要： An objective lens for an optical information recording/reproducing device (executing information reading or writing on first through third optical discs having different data densities and different protective layer thicknesses t1-t3 (t1≦t2≦t3)) by selectively using first through third substantially collimated light beams having first through third wavelengths λ1-λ3 (λ1 m(λ2)≧m(λ3)≧1.
摘要翻译：用于光学信息记录/再现装置的物镜（执行具有不同数据密度和不同保护层厚度t 1 -t 3（t 1 <= t 2 <= t 3）的第一至第三光盘的信息读取或写入）通过选择性地使用具有第一至第三波长λ1-λ3（λ1<λ3）的第一至第三基本上准直的光束）包括在固结表面处胶合在一起的第一光学构件和第二光学构件。在固定数值孔径NA 3所需的入射高度（在第三光盘上进行信息读/写所需）的入射高度的至少一个区域设置有包括环形区域的衍射结构。衍射结构形成为使得其衍射效率最大化的第一至第三光束的衍射级m（λ1），m（λ2）和m（λ3）满足m（λ1）> m（λ2）> = m（λ3）> = 1。

9. 发明申请

US20060280061A1 OBJECTIVE LENS AND OPTICAL INFORMATION READ/WRITE DEVICE 失效
标题翻译：目标镜头和光信息读/写装置
公开(公告)号：US20060280061A1
公开(公告)日：2006-12-14
申请号：US11419810
申请日：2006-05-23
申请人： Daisuke KOREEDA , Koichi MARUYAMA , Shuichi TAKEUCHI
发明人： Daisuke KOREEDA , Koichi MARUYAMA , Shuichi TAKEUCHI
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G02B5/1876 , G02B5/1895 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An objective lens, for an optical information read/write device that performs read/write operations on each of a plurality of optical discs using a corresponding one of three laser beams having first, second, and third wavelengths λ1, λ2, and λ3 (nm) satisfying a relationship λ1
摘要翻译：一种物镜，用于光信息读/写装置，其使用具有第一，第二和第三波长λ1，λ2和λ3（nm）的三个激光束中的相应一个对多个光盘中的每一个执行读/写操作）分别满足λ1<λ2<λ3的关系，包括具有多个环形折射表面区域的相移结构，物镜的至少一个表面同心分开。物镜由阿贝数nud满足条件40 <= nud <= 80的材料制成。相移结构在每对相邻的折射表面区域之间具有步骤，其给出与入射激光束的光程差，从而满足条件2N + 1.00 <|ΔOPD/λ1| <2N + 1.30，其中DeltaOPD 表示阶梯给出具有第一波长的激光束的光程差（nm），N表示非负整数。

10. 发明申请

US20090185472A1 Objective Optical System and Optical Information Recording/Reproducing Device Having the Same 有权
标题翻译：目标光学系统和具有相同功能的光信息记录/再现设备
公开(公告)号：US20090185472A1
公开(公告)日：2009-07-23
申请号：US12357462
申请日：2009-01-22
申请人： Daisuke KOREEDA , Shuichi TAKEUCHI , Yoshiyuki TASHIRO
发明人： Daisuke KOREEDA , Shuichi TAKEUCHI , Yoshiyuki TASHIRO
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/1367 , G11B7/13922 , G11B2007/0006
摘要： There is provided an objective optical system used for information recording/reproducing for three types of optical discs. The objective optical system includes an objective lens, and a diffraction structure formed on an optical surface. The diffraction structure includes a first area for contributing to converging the third light beam. The first area includes first and second steps defined by first and second optical path difference functions, respectively. The first step is configured such that diffraction orders at which diffraction efficiencies for the first, second and third light beams are maximized are 1st order, 0-th order and 0-th order, respectively. The first step satisfies a condition: −0.36×102
摘要翻译：提供了用于三种类型的光盘的信息记录/再现的物镜光学系统。物镜光学系统包括物镜和形成在光学表面上的衍射结构。衍射结构包括用于有助于会聚第三光束的第一区域。第一区域包括分别由第一和第二光程差函数限定的第一和第二步骤。第一级被配置为使得第一，第二和第三光束的衍射效率最大化的衍射级分别为1级，0级和0级。第一步满足条件：<？in-line-formula description =“In-line Formulas”end =“lead”？> - 0.36x102 第二步被配置为使得第一，第二和第三光束的衍射效率最大化的衍射级是第二级，第一级和第一顺序。

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