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31. 发明授权

US08792027B2 Solid-state image pickup device, imaging device, and dispersing element 有权
标题翻译：固态图像拾取装置，成像装置和分散元件
公开(公告)号：US08792027B2
公开(公告)日：2014-07-29
申请号：US12985353
申请日：2011-01-06
申请人： Michihiro Yamagata , Yasuhiro Tanaka , Kazuhiro Yamada , Kazuyoshi Itoh , Yasuyuki Ozeki
发明人： Michihiro Yamagata , Yasuhiro Tanaka , Kazuhiro Yamada , Kazuyoshi Itoh , Yasuyuki Ozeki
IPC分类号： H04N9/04 , H04N5/225 , H01L27/00 , H04N9/097
CPC分类号： H01L27/14629 , G02B5/18 , H01L27/14627
摘要： A solid-state image pickup device capable of taking more light into light receiving regions is provided. The solid-state image pickup device of the present invention includes: a photoelectric conversion unit having a plurality of light receiving regions that are two-dimensionally arrayed, the photoelectric conversion unit for photoelectrically converting light incident on each of the light receiving regions, and outputting an electric signal according to the intensity of the incident light; a lens unit comprising a plurality of converging lenses provided on an upper layer of the photoelectric conversion unit, each of the converging lens being provided corresponding to a set of continuous first to third light receiving regions; and a dispersing element provided between the photoelectric conversion unit and the lens unit, the dispersing element being formed of a medium whose refractive index varies periodically, and diffracting beams of a first wavelength band and of a third wavelength band, having been transmitted through the converging lens, and directing the beams onto the first light receiving region and the third light receiving region, and transmitting, without diffracting, a beam of a second wavelength band, having been transmitted through the converging lens, and directing the beam onto the second light receiving region.
摘要翻译：提供了能够将更多的光吸收到光接收区域的固体摄像装置。本发明的固态摄像装置具有：具有二维排列的多个受光区域的光电转换单元，对各受光区域入射的光进行光电转换的光电转换单元，并输出根据入射光强度的电信号; 透镜单元，包括设置在所述光电转换单元的上层上的多个会聚透镜，所述会聚透镜对应于一组连续的第一至第三光接收区域而设置; 以及设置在所述光电转换单元和所述透镜单元之间的分散元件，所述分散元件由折射率周期性变化的介质形成，并且衍射已经通过会聚的第一波长带和第三波长带的波束并且将光束引导到第一光接收区域和第三光接收区域上，并且在不衍射的情况下传输已经透过会聚透镜的第二波长带的光束，并将光束引导到第二光接收地区。

32. 发明授权

US08767518B2 Objective lens element and optical pickup device 有权
标题翻译：物镜和光学拾取装置
公开(公告)号：US08767518B2
公开(公告)日：2014-07-01
申请号：US13248038
申请日：2011-09-29
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Fumitomo Yamasaki
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Fumitomo Yamasaki
IPC分类号： G11B7/12
CPC分类号： G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An objective lens element that can suppress occurrence of an aberration is disclosed. Sawtooth-like diffraction structures having different height and cycles (pitches) are provided on an inner part R21 and an outer part R22, respectively. A curved surface M211 extending at an intermediate level of recesses and projections of the sawtooth-like diffraction structure provided on the inner part R21, and a curved surface M212 extending at an intermediate level of recesses and projections of the sawtooth-like diffraction structure provided on the outer part R22 are smoothly connected to each other. Even when wavelength of the light source and/or the environmental temperature change, a phase shift does not occur between the inner part R21 and the outer part R22, and a decrease in diffraction efficiency and occurrence of an aberration can be suppressed.
摘要翻译：公开了能够抑制像差的发生的物镜元件。分别具有不同高度和周期（间距）的锯齿状衍射结构分别设置在内部部分R21和外部部分R22上。在内部部件R21上设置的锯齿状衍射结构的凹部和突起的中间水平面延伸的曲面M211，以及设置在上述锯齿状衍射结构的中间水平的锯齿状衍射结构的中间水平面的弯曲面M212 外部部件R22彼此平滑地连接。即使在光源的波长和/或环境温度发生变化的情况下，内部部件R21和外部部件R22之间也不会发生相位偏移，并且可以抑制衍射效率的降低和像差的发生。

33. 发明授权

US08472299B2 Optical element and optical pickup device using the same 有权
标题翻译：光学元件和使用其的光学拾取器件
公开(公告)号：US08472299B2
公开(公告)日：2013-06-25
申请号：US13411636
申请日：2012-03-05
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata
IPC分类号： G11B7/00
CPC分类号： G11B7/139 , G02B3/04 , G02B3/08 , G02B5/1814 , G11B7/1374
摘要： An optical element which has optical steps each providing a phase difference to transmitted light and has low light amount loss and a high efficiency is provided. The optical element includes a symmetry axis, a plurality of optically functional surfaces which are ring-shaped regions around the symmetry axis, and a plurality of wall regions connecting the optically functional surfaces to each other. The optically functional surfaces and the wall regions constitute the optical steps. On a cross-section taken by, as a cutting plane, a plane including the symmetry axis, the contour line of each wall region is substantially parallel to a light beam which is incident on the optically functional surface on the outer side and passes near the wall region. The maximum value of the angle between the symmetry axis and the light beam passing near the wall region is equal to or more than 25 degrees.
摘要翻译：提供一种光学元件，其具有对透射光提供相位差并具有低光损失和高效率的光学步骤。光学元件包括对称轴，围绕对称轴的环形区域的多个光学功能表面和将光学功能表面彼此连接的多个壁区域。光学功能表面和壁区域构成光学步骤。在通过作为切割平面的包括对称轴的平面截取的横截面上，每个壁区域的轮廓线基本上平行于入射在外侧上的光学功能表面上的光束，并且靠近墙区域。对称轴与靠近壁区域的光束之间的角度的最大值等于或大于25度。

34. 发明申请

US20120163142A1 Objective Lens Element and Optical Pickup Device Using the Same 审中-公开
标题翻译：物镜和使用其的光学拾取装置
公开(公告)号：US20120163142A1
公开(公告)日：2012-06-28
申请号：US13411655
申请日：2012-03-05
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata
IPC分类号： G11B7/00
CPC分类号： G11B7/13922 , G11B7/1374
摘要： An objective lens element which can obtain appropriate spot performance only by simple position adjustment, and an optical pickup device using the objective lens element are provided. In the objective lens element, an amount of a generated third-order astigmatism of a spot which is formed when symmetry axes of optically functional surfaces are located parallel to the normal line of a base plate and an incident light beam incident such that a central light beam thereof is tilted at 0.5 degree with respect to the normal line of the base plate is converged, is reduced to be less than an amount of a generated spherical aberration of a spot which is formed when the symmetry axes of the optically functional surface are located parallel to the normal line of the base plate and an incident light beam incident parallel to the normal line of the base plate is converged.
摘要翻译：提供了仅通过简单的位置调整获得适当的光点性能的物镜元件和使用该物镜元件的光学拾取装置。在物镜元件中，当光学功能表面的对称轴平行于基板的法线和入射光入射时形成的点的产生的三阶散光的量，使得中心光其相对于基板的法线倾斜0.5度会聚，减小到小于当光学功能表面的对称轴位于时形成的光斑的产生的球面像差的量平行于基板的法线的入射光束和平行于基板的法线的入射光束会聚。

35. 发明申请

US20110032811A1 DIFFRACTIVE OPTICAL ELEMENT, OBJECTIVE OPTICAL SYSTEM INCLUDING THE SAME, AND OPTICAL PICKUP INCLUDING THE SAME 有权
标题翻译：衍射光学元件，包括它们的目标光学系统和包括其中的光学拾取
公开(公告)号：US20110032811A1
公开(公告)日：2011-02-10
申请号：US12854537
申请日：2010-08-11
申请人： Yasuhiro TANAKA , Michihiro Yamagata , Katsuhiko Hayashi
发明人： Yasuhiro TANAKA , Michihiro Yamagata , Katsuhiko Hayashi
IPC分类号： G11B7/135 , G02B27/44
CPC分类号： G02B5/1814 , G02B27/4238 , G02B27/4294 , G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： A diffractive optical element includes a first optical part and a second optical part bonded to each other with a bonded surface therebetween configured as a diffraction surface. In this diffractive optical element, the diffraction order of diffracted light with the largest quantity of light out of diffracted light for one of a plurality of kinds of laser beams obtained on the diffraction surface is different from the diffraction order for at least another laser beam.
摘要翻译：衍射光学元件包括第一光学部件和第二光学部件，所述第一光学部件和第二光学部件彼此接合，其间的接合表面被构造为衍射表面。在该衍射光学元件中，衍射面上得到的多种激光中的一种的衍射光的衍射光的衍射级别与至少另一种激光束的衍射级别不同。

36. 发明授权

US07850319B2 Light-absorbing member 有权
标题翻译：光吸收部件
公开(公告)号：US07850319B2
公开(公告)日：2010-12-14
申请号：US11597651
申请日：2005-05-16
申请人： Motonobu Yoshikawa , Yoshiharu Yamamoto , Michihiro Yamagata , Yasuhiro Tanaka
发明人： Motonobu Yoshikawa , Yoshiharu Yamamoto , Michihiro Yamagata , Yasuhiro Tanaka
IPC分类号： G02B27/00
CPC分类号： G02B1/118 , G02B1/11 , G02B5/003 , G02B7/02
摘要： A light-absorbing member has a substrate (101, 111) made of a material capable of absorbing light of which reflection is to be prevented, and an antireflection structure (102, 112, 303) having structural elements arranged on the surface of the curve in an array form at a period smaller than the wavelength of the light. The substrate having the shape of a curve viewed from a macroscopic viewpoint. The structural elements have a shape protruding or being recessed from a reference face corresponding to the curve of the substrate, and are arranged so that the straight lines connecting the reference face to the tips of the respective structural elements are nearly parallel to one another.
摘要翻译：光吸收构件具有由能够吸收要防止反射的光的材料制成的基板（101,111）和具有布置在曲线表面上的结构元件的抗反射结构（102,112,303）以小于光的波长的周期的阵列形式。从宏观角度看，具有曲线形状的基板。结构元件具有从与基板的曲线对应的参考面突出或凹入的形状，并且被布置成使得连接参考面的直线与各个结构元件的顶端几乎平行。

37. 发明授权

US07548383B2 Optical pickup and objective lens used therein 有权
标题翻译：其中使用的光学拾取和物镜
公开(公告)号：US07548383B2
公开(公告)日：2009-06-16
申请号：US11808930
申请日：2007-06-13
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Kazuhiko Ishimaru
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Kazuhiko Ishimaru
IPC分类号： G02B3/02 , G11B7/135
CPC分类号： G11B7/1376 , G11B7/13925 , G11B2007/0013
摘要： An optical pickup 1 includes a collimator lens 13 for changing the shape of a laser light by moving on the optical axis AX from a base point. An objective lens 15 is set so as to form a spot of which size, when the collimator lens 13 is located at the base point, is minimum at a point apart from the light source side surface of an information recording medium 20 by a distance of Lc defined by an expression (1): Lc=(L0+Ln)/2 (1), wherein Lc is named as a thickness to the designed center; L0 is a distance between the light source side surface of the information recoding medium and an information recording face located nearest to the light source side surface; and Ln is a distance between the light source side surface of the information recording medium and an information recording face located farthest from the light source side surface.
摘要翻译：光拾取器1包括准直透镜13，用于通过从基点在光轴AX上移动来改变激光的形状。物镜15被设定为当准直透镜13位于基点时形成大小的点，在与信息记录介质20的光源侧表面分开的距离处最小 Lc =（L0 + Ln）/ 2（1），<？in-line-formula description =“In-line-formula” 公式描述=“在线公式”end =“tail”？>其中Lc被命名为设计中心的厚度; L0是信息记录介质的光源侧表面与最靠近光源侧表面的信息记录面之间的距离; Ln是信息记录介质的光源侧表面与距光源侧表面最远的信息记录面之间的距离。

38. 发明申请

US20090022039A1 Optical Pickup and Objective Optical System for Use in the Same 失效
标题翻译：光拾取和目标光学系统在同一使用
公开(公告)号：US20090022039A1
公开(公告)日：2009-01-22
申请号：US11631953
申请日：2006-02-17
申请人： Katsuhiko Hayashi , Akihiro Arai , Yasuhiro Tanaka , Michihiro Yamagata
发明人： Katsuhiko Hayashi , Akihiro Arai , Yasuhiro Tanaka , Michihiro Yamagata
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G02B3/04 , G02B3/08 , G02B27/144 , G02B27/145 , G11B7/1353 , G11B7/1369 , G11B7/1378 , G11B7/13922 , G11B7/13925 , G11B2007/0006
摘要： An optical pickup (1) includes a light source (6) capable of emitting laser beams of various wavelengths and an objective optical system (2). The objective optical system (2) includes at least two wavefront conversion surfaces (13a) and (16a) and an objective lens (10). The at least two wavefront conversion surfaces (13a) and (16a) convert a wavefront of any laser beam entered therein into a different wavefront in response to the kind of an optical information recording medium (3) corresponding to the laser light. The objective lens (10) focuses the laser beam came out of the wavefront conversion surface (16a) on an optical information recording surface (3R). The optical pickup (1) satisfies the following condition for every wavelength of the corresponding laser beams: |SCMAX|
摘要翻译：光拾取器（1）包括能够发射各种波长的激光束的光源（6）和物镜光学系统（2）。物镜光学系统（2）包括至少两个波前转换表面（13a）和（16a）和物镜（10）。响应于对应于激光的光学信息记录介质（3）的种类，至少两个波前转换表面（13a）和（16a）将其中输入的任何激光束的波前转换成不同的波阵面。物镜（10）将激光束聚焦在光学信息记录表面（3R）上的波前转换表面（16a）之外。对于相应激光束的每个波长，光学拾取器（1）满足以下条件：<？in-line-formula description =“In-line Formulas”end =“lead”？> | SCMAX | <0.036（1）？in-line-formula description =“In-line Formulas”end =“tail”？>其中SCMAX是针对物镜光学系统（2）的正弦条件的违规的最大值。

39. 发明申请

US20080130467A1 Objective optical system and optical pickup including the same 审中-公开
标题翻译：物镜光学系统和包括其的光学拾取器
公开(公告)号：US20080130467A1
公开(公告)日：2008-06-05
申请号：US11819204
申请日：2007-06-26
申请人： Michihiro Yamagata , Yoshiaki Komma , Yasuhiro Tanaka , Katsuhiko Hayashi
发明人： Michihiro Yamagata , Yoshiaki Komma , Yasuhiro Tanaka , Katsuhiko Hayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1275 , G11B7/1353 , G11B2007/0006 , G11B2007/13722
摘要： An objective optical system 10 includes a diffraction plane 15 for separating a laser light beam into at least 0th-order diffracted light and 1st-order diffracted light. The objective optical system 10 is configured to focus the 0th-order diffracted light onto an information recording surface 22a of a first information recording medium 20a and the 1st-order diffracted light onto an information recording surface 22b of a second information recording medium 20b and meet the following conditional expression (1): η0>η1 (1) wherein η0 is the diffraction efficiency of the 0th-order diffracted light and η1 is the diffraction efficiency of the 1st-order diffracted light.
摘要翻译：物镜光学系统10包括用于将激光束分离成至少0级次级衍射光和1级次级衍射光的衍射平面15。物镜光学系统10被配置为将第0个/次级衍射光聚焦到第一信息记录介质20a的信息记录表面22a上，并且第一信号记录介质将衍射光分级到第二信息记录介质20b的信息记录表面22b上，并满足以下条件表达式（1）：<？in-line-formula description =“In-line Formulas”end =“lead”？> η（1）<βin-line-formula description =“In-line Formulas”end =“tail”？>其中eta <0> 是第0级衍射光的衍射效率，而第1级衍射光的衍射效率是第1级次衍射光的衍射效率衍射光。

40. 发明申请

US20080088731A1 Lens Array and Image Sensor Including Lens Array 审中-公开
标题翻译：包括镜头阵列的镜头阵列和图像传感器
公开(公告)号：US20080088731A1
公开(公告)日：2008-04-17
申请号：US11795471
申请日：2005-12-26
申请人： Yasuhiro Tanaka , Michihiro Yamagata , Kazutake Boku , Hiroaki Okayama , Kenichi Hayashi , Yoshimasa Fushimi , Shigeki Murata , Takayuki Hayashi
发明人： Yasuhiro Tanaka , Michihiro Yamagata , Kazutake Boku , Hiroaki Okayama , Kenichi Hayashi , Yoshimasa Fushimi , Shigeki Murata , Takayuki Hayashi
IPC分类号： H04N5/225
CPC分类号： H04N5/2256
摘要： A thin image sensor which is capable of projecting an illuminating light for illuminating an object and has high optical performance is provided. An image sensor (10) includes: a lens array (11) including lens elements (11a) arranged in an array on a plane; an imaging element (13) for converting an optical image into an electrical signal, the imaging element including imaging areas, each of which includes a plurality of photoelectric conversion sections and is operable to receive the optical image; and a light source section (14) for projecting an illuminating light for illuminating an object from which the optical images are to be formed.
摘要翻译：提供能够投射用于照射物体的照明光并具有高光学性能的薄像传感器。图像传感器（10）包括：透镜阵列（11），其包括在平面上排列成阵列的透镜元件（11a）; 用于将光学图像转换为电信号的成像元件（13），所述成像元件包括成像区域，每个所述成像区域包括多个光电转换部分，并且可操作以接收所述光学图像; 以及用于投射用于照射要形成光学图像的物体的照明光的光源部分（14）。

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