公开(公告)号：US20060146422A1

公开(公告)日：2006-07-06

申请号：US11246640

申请日：2005-10-11

申请人： Katsuhiro Koike

发明人： Katsuhiro Koike

IPC分类号： G02B3/08

CPC分类号： G11B7/1353 ,  G02B5/188 ,  G02B27/0037 ,  G02B27/4238 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An objective lens module includes a light-converging lens that is coaxially disposed with respect to an optical axis of first laser light having a first wavelength, and a transmission-type diffractive optical element that is coaxially disposed to cause diffracted light of first laser light to be incident on the light-converging lens. The diffractive optical element has an incident surface and an emergent surface, and first, second, and third regions that are provided on at least of the incident surface and the emergent surface inthe vicinity of the optical axis, and are sequentially defined according to different radius distances from the optical axis to have different diffraction gratings of different diffraction angles, respectively. The first region diffracts odd-order diffracted light of first laser light to the light-converging lens, the second region diffracts even-order diffracted light of first laser light to the light-converging lens, and the third region diffracts even-order or zero-order diffracted light of first laser light to the light-converging lens, such that the light-converging lens converges diffracted light from the first, second, and third regions with a predetermined numerical aperture.

摘要翻译： 物镜模块包括相对于具有第一波长的第一激光的光轴同轴设置的聚光透镜和同轴设置的透射型衍射光学元件，以使第一激光的衍射光到 入射在聚光透镜上。 衍射光学元件具有入射面和出射面，以及设置在至少入射面和光轴附近的出射面的第一，第二和第三区域，并且根据不同的半径依次限定 距离光轴的距离分别具有不同衍射角的不同衍射光栅。 第一区域将第一激光的奇数级衍射光衍射到会聚透镜，第二区域将第一激光的偶次衍射光衍射到聚光透镜，第三区域衍射为偶数或零 第一激光的衍射光到聚光透镜，使得聚光透镜以预定的数值孔径会聚来自第一，第二和第三区域的衍射光。

公开(公告)号：US07468942B2

公开(公告)日：2008-12-23

申请号：US10840479

申请日：2004-05-07

申请人： Katsuhiro Koike ,  Koichi Maruyama ,  Shuichi Takeuchi

发明人： Katsuhiro Koike ,  Koichi Maruyama ,  Shuichi Takeuchi

IPC分类号： G11B7/135

CPC分类号： G11B7/1275 ,  G11B7/1378 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup has a light source for emitting a plurality of laser beams with different wavelengths; and an objective lens for focusing the laser beams emitted from the light source on recording surfaces of plural types of information recording media. A diffractive lens structure is provided in a light path of the laser beam, the structure including ring zone areas divided by a plurality of phase steps for correcting a wavefront aberration of the laser beam, a diameter of an outermost phase step of the diffractive lens structure is smaller than a second largest effective diameter of effective diameters required for reproduction of the plural types of information recording media.

摘要翻译： 光拾取器具有用于发射具有不同波长的多个激光束的光源; 以及用于将从光源发射的激光束聚焦在多种类型的信息记录介质的记录表面上的物镜。 衍射透镜结构设置在激光束的光路中，该结构包括由用于校正激光束的波前像差的多个相位分割的环区域，衍射透镜结构的最外相阶段的直径 小于再现多种类型的信息记录介质所需的有效直径的第二大有效直径。

公开(公告)号：US5867315A

公开(公告)日：1999-02-02

申请号：US689158

申请日：1996-07-30

申请人： Katsuhiro Koike ,  Yoshiyuki Tsukai

发明人： Katsuhiro Koike ,  Yoshiyuki Tsukai

IPC分类号： G02B1/02 ,  G02B3/10 ,  G02B5/30 ,  G02B13/00 ,  G02B27/28 ,  G11B7/00 ,  G11B7/135

CPC分类号： G02B1/08 ,  G02B1/02 ,  G02B27/283 ,  G02B3/10 ,  G02B5/3083 ,  G11B7/1378 ,  G11B2007/0006 ,  G11B2007/0013

摘要： A bifocal crystal optic lens made of a uniaxial crystal comprising two surfaces having a same axis, at least one of the two surfaces being a spherical surface or an aspherical surface. An optical system for an optical pickup device includes; a crystal optic lens consisting of a first lens body made of a transparent uniaxial crystal and a second lens body made of a transparent optical material selected from a second uniaxial crystal and an optical isotropic material, the first and second lens bodies joining via a spherically or aspherically curved interface; and an objective lens aligned with the crystal optic lens in a same optical axis of an incident ray. This optical system for the optical pickup device is capable of making simultaneously two focal points in the same axis, so as to simplify preferably the structure of the compatible video optical disc player for CD and SD to minimize the size thereof, thereby providing a relatively low cost for the manufacture thereof.

摘要翻译： 由单轴晶体制成的双焦晶体透镜，包括具有相同轴线的两个表面，所述两个表面中的至少一个是球形表面或非球面。 一种用于光学拾取装置的光学系统包括： 由透明单轴晶体制成的第一透镜体和由选自第二单轴晶体和光学各向同性材料的透明光学材料制成的第二透镜体的晶体光学透镜，所述第一和第二透镜体通过球形或 非球面弯曲界面; 以及在入射光线的相同光轴上与晶体光学透镜对准的物镜。 用于光学拾取装置的该光学系统能够同时在同一轴线上同时制造两个焦点，从而优选地简化用于CD和SD的兼容视频光盘播放器的结构，以使其尺寸最小化，从而提供相对较低的 制造成本。

公开(公告)号：US20110108431A1

公开(公告)日：2011-05-12

申请号：US12653427

申请日：2009-12-14

申请人： Kazuyuki Shinozaki ,  Yusaku Tazono ,  Katsuhiro Koike

发明人： Kazuyuki Shinozaki ,  Yusaku Tazono ,  Katsuhiro Koike

IPC分类号： C25D3/22 ,  C25B9/06 ,  C11D3/37

CPC分类号： C25D5/48 ,  C25D3/22 ,  C25D5/36 ,  C25D17/10 ,  C25D17/12

摘要： A galvanization system comprising an alkaline galvanization bath, a positive electrode, and a negative electrode is provided. The alkaline galvanization bath comprises galvanizing solution including about 7 to about 60 g/l of Zn, about 70 to about 200 g/l of alkali hydroxide and about 0.01 to about 5 g/l of additives. The positive electrode is insoluble in the galvanizing solution, having an opposed surface to an object which is supposed to be set in the alkaline galvanization bath and galvanized. The opposed surface of the positive electrode is formed in a polygonal pattern having a side equal to or less than 30 mm, which connects arbitrary two apexes of the pattern, in a polygonal pattern having a vertical line equal to or less than 30 mm, drawn between an arbitrary apex and an arbitrary side of the pattern, or in a circular pattern having a diameter equal to or less than 30 mm. The galvanization system can produce a galvanization membrane of excellent appearance.

摘要翻译： 提供了包括碱性镀锌浴，正极和负极的镀锌系统。 碱性镀锌浴包括镀锌溶液，其包括约7至约60g / l的Zn，约70至约200g / l的碱金属氢氧化物和约0.01至约5g / l的添加剂。 该正电极不溶于镀锌液，其具有与被设置在碱性镀锌浴中并进行镀锌的物体相对的表面。 正电极的相对表面形成为具有等于或小于30mm的边的多边形图案，其以垂直线等于或小于30mm的多边形图案连接图案的任意两个顶点，绘制 在图案的任意顶点和任意一侧之间，或以直径等于或小于30mm的圆形图案。 镀锌系统可以生产外观优异的镀锌膜。

公开(公告)号：US07852736B2

公开(公告)日：2010-12-14

申请号：US10588844

申请日：2005-01-14

申请人： Katsuhiro Koike

发明人： Katsuhiro Koike

IPC分类号： G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/1275 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical element (10) includes a spherical aberration correction hologram (14) and a color aberration correction hologram (15). For a first laser light requiring the greatest valid diameter, no affect is given to the wave front in either of the aberration correction holograms. However, for a second laser light requiring the second greatest valid diameter, the valid diameter is narrowed down by the spherical aberration correction hologram (14). For a third laser light requiring the smallest valid diameter, the valid diameter is narrowed down to a predetermined amount by the diffusion light coming and the spherical aberration correction hologram (14) and further the valid diameter is narrowed down by the selective diffraction of the light flux incident in the annular area B of the color aberration correction hologram (15) and its diffusion.

摘要翻译： 光学元件（10）包括球面像差校正全息图（14）和色差校正全息图（15）。 对于需要最大有效直径的第一激光，在任何一个像差校正全息图中都不影响波前。 然而，对于需要第二最大有效直径的第二激光，有效直径被球面像差校正全息图（14）缩小。 对于需要最小有效直径的第三激光，有效直径通过扩散光和球面像差校正全息图（14）变窄到预定量，并且有效直径通过光的选择性衍射而变窄 入射在色差校正全息图（15）的环形区域B中的磁通及其扩散。

公开(公告)号：US07463571B2

公开(公告)日：2008-12-09

申请号：US10593395

申请日：2005-03-15

申请人： Katsuhiro Koike

发明人： Katsuhiro Koike

IPC分类号： G11B7/00

CPC分类号： G11B7/1378 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： The hologram (20) for spherical aberration correction is formed in optical element (10). With respect to the first laser light which requires the largest effective diameter, the hologram does not have effect on wavefront. With respect to the second laser light which requires the second largest effective diameter, the spherical aberration is corrected by the holograms (21, 22) which are formed in a concentric and zonal pattern and construct the hologram, and the effective diameter is converged. With respect to the third laser light which requires the smallest effective diameter, only the hologram (22) has the effect of the correction for the spherical aberration. The hologram (22) is formed such that its diameter is associated with the effective diameter required by the third laser light, and the effective diameter is converged due to the combination with the incidence of the diffused laser light

摘要翻译： 用于球面像差校正的全息图（20）形成在光学元件（10）中。 对于需要最大有效直径的第一激光，全息图对波前没有影响。 对于需要第二大有效直径的第二激光，由形成为同心圆状图案的全息图（21,22）校正球面像差，构成全息图，有效直径收敛。 对于需要最小有效直径的第三激光，只有全息图（22）具有校正球面像差的效果。 全息图（22）形成为使得其直径与第三激光所需的有效直径相关联，并且由于与扩散激光的入射的组合，有效直径会聚

公开(公告)号：US20070211599A1

公开(公告)日：2007-09-13

申请号：US10593395

申请日：2005-03-15

申请人： Katsuhiro Koike

发明人： Katsuhiro Koike

IPC分类号： G11B7/135

CPC分类号： G11B7/1378 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： The hologram (20) for spherical aberration correction is formed in optical element (10). With respect to the first laser light which requires the largest effective diameter, the hologram does not have effect on wavefront. With respect to the second laser light which requires the second largest effective diameter, the spherical aberration is corrected by the holograms (21, 22) which are formed in a concentric and zonal pattern and construct the hologram, and the effective diameter is converged. With respect to the third laser light which requires the smallest effective diameter, only the hologram (22) has the effect of the correction for the spherical aberration. The hologram (22) is formed such that its diameter is associated with the effective diameter required by the third laser light, and the effective diameter is converged due to the combination with the incidence of the diffused laser light

摘要翻译： 用于球面像差校正的全息图（20）形成在光学元件（10）中。 对于需要最大有效直径的第一激光，全息图对波前没有影响。 对于需要第二大有效直径的第二激光，由形成为同心圆状图案的全息图（21,22）校正球面像差，构成全息图，有效直径收敛。 对于需要最小有效直径的第三激光，只有全息图（22）具有校正球面像差的效果。 全息图（22）形成为使得其直径与第三激光所需的有效直径相关联，并且由于与扩散激光的入射的组合，有效直径会聚

公开(公告)号：US06641887B2

公开(公告)日：2003-11-04

申请号：US09984275

申请日：2001-10-29

申请人： Tetsuya Iida ,  Takamasa Yoshikawa ,  Katsuhiro Koike

发明人： Tetsuya Iida ,  Takamasa Yoshikawa ,  Katsuhiro Koike

IPC分类号： B32B302

CPC分类号： G11B7/2548 ,  G11B7/24 ,  G11B7/2534 ,  G11B7/2575 ,  G11B7/26 ,  G11B2007/25411 ,  G11B2007/25417 ,  Y10T428/21

摘要： Provided is an optical recording medium whose surface is not easily injured, particularly an optical recording medium which is not required to be put into a cartridge. The optical recording medium comprises a recording layer, a covering layer comprising a polymer material, and a protective layer which are successively deposited, recording or reproducing wavelength for the medium being 420 nm or less, the numerical aperture of an optical system for the medium being 0.74 or more, and light being radiated to the side of the protective layer to read out data in the recording layer. In the medium, the protective layer has a hardness of 1000 kg/mm2 or more and a thickness of 4.66 &mgr;m or less.

摘要翻译： 本发明提供一种表面不容易受伤的光记录介质，特别是不需要放入盒中的光记录介质。 光记录介质包括记录层，包含聚合物材料的覆盖层和连续沉积，记录或再现波长为420nm或更小的介质的保护层，介质的光学系统的数值孔径为 0.74以上，并且光被照射到保护层的一侧以读出记录层中的数据。 在该介质中，保护层的硬度为1000kg / mm 2以上，厚度为4.66μm以下。

公开(公告)号：US06625103B1

公开(公告)日：2003-09-23

申请号：US09482887

申请日：2000-01-14

申请人： Katsuhiro Koike

发明人： Katsuhiro Koike

IPC分类号： G11B700

CPC分类号： G11B7/1374 ,  G11B2007/0006

摘要： An aspherical objective lens and its manufacturing method are disclosed which allows for forming an optical spot with fewer side lobes on optical discs having a continuous lens plane and substrates different in thickness. The aspherical objective lens is characterized by converging first and second beams of light of first and second wavelengths individually on a first optical disc having a first substrate thickness and on a second optical disc having a second substrate thickness greater than the first substrate thickness at approximately a valid first numerical aperture and a second numerical aperture smaller than the first numerical aperture, respectively. A difference between average values of variations in wavefront aberration corresponding to an inner circumference portion and outer circumference portion, when the first beam of light converges on the first optical disk of the first substrate thickness, is approximately equal to one wavelength of a beam of light of the first wavelength.

摘要翻译： 公开了一种非球面物镜及其制造方法，其允许在具有连续透镜平面的光盘和厚度不同的基板上形成具有较少旁瓣的光斑。 非球面物镜的特征在于将第一和第二波长的第一和第二光束分别会聚在具有第一基板厚度的第一光盘上，并且在第二光盘上会聚第二基板厚度大于第一基板厚度 分别有效的第一数值孔径和小于第一数值孔径的第二数值孔径。 当第一光束会聚在第一基板厚度的第一光盘上时，与内周部分和外周部分相对应的波前像差的平均值之间的差异近似等于光束的一个波长 的第一波长。

公开(公告)号：US6124988A

公开(公告)日：2000-09-26

申请号：US96536

申请日：1998-06-12

申请人： Takuma Yanagisawa ,  Katsuhiro Koike ,  Masakazu Ogasawara

发明人： Takuma Yanagisawa ,  Katsuhiro Koike ,  Masakazu Ogasawara

IPC分类号： G02B13/00 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135 ,  G02B13/18 ,  G02B3/10

CPC分类号： G11B7/1374 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

摘要： An objective lens that allows spherical aberration to be suppressed during the reproduction of a CD without sacrificing reproduction characteristics of a DVD, has a first numerical aperture comprising a refracting surface that is in rotatory symmetry about an optical axis. A part of the refracting surface is displaced along the optical axis as an annular concave (or convex) portion centered on the optical axis. The annular concave (or convex) portion has a certain inner diameter r.sub.1 and a certain outer diameter r.sub.2 that reduce RMS aberration V to a value close to a minimum value. The annular portion has a certain depth (or height).

摘要翻译： 在CD的再现期间允许球面像差被抑制的物镜，而不牺牲DVD的再现特性，具有第一数值孔径，其包括围绕光轴旋转对称的折射表面。 折射表面的一部分作为中心在光轴上的环形凹（或凸）部分沿着光轴移位。 环形凹（或凸）部分具有一定的内径r1和一定的外径r2，其将RMS像差V降低到接近最小值的值。 环形部分具有一定的深度（或高度）。