公开(公告)号：US20050063284A1

公开(公告)日：2005-03-24

申请号：US10985926

申请日：2004-11-12

申请人： Yasuyuki Sugi ,  Takesuke Maruyama

发明人： Yasuyuki Sugi ,  Takesuke Maruyama

IPC分类号： G02B13/00 ,  G02B3/00 ,  G02B13/18 ,  G11B7/00 ,  G11B7/135 ,  G11B7/1374

CPC分类号： G11B7/1374 ,  G02B3/00 ,  G11B7/1353 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： When the DVD provided with the DVD substrate 2 having thickness t2 of 0.6 mm is installed in the optical disc apparatus, the light beam 4 having wavelength λ1=655 nm is used as luminous flux of numerical aperture NA=0.63 to be condensed on the information surface 2a on the DVD substrate 2. When the CD provided with the CD substrate 3 having thickness t2 of 1.2 mm is installed in the optical disc apparatus, the light beam 5 having wavelength λ2=790 nm is effectively used as luminous flux of approximate numerical aperture NA=0.45 to be condensed on the information surface 3a on the DVD substrate 3. The wavefront aberration caused by a thickness difference between the DVD substrate 2 and CD substrate 3 is canceled out by the chromatic aberration caused by a wavelength difference between the light beams 4 and 5. Therefore, in spite of the difference in the transparent substrates, the light beams are suitably condensed respectively on the information surface 2a and 3a.

摘要翻译： 当设置有厚度t2为0.6mm的DVD基板2的DVD被安装在光盘装置中时，使用波长λ1= 655nm的光束4作为数据孔径NA = 0.63的光通量在信息上被浓缩 表面2a在DVD基板2上。当具有厚度t2为1.2mm的CD基板3的CD安装在光盘装置中时，具有波长λ2= 790nm的光束5被有效地用作近似数值的光通量 孔径NA = 0.45被聚集在DVD基板3上的信息表面3a上。由DVD基板2和CD基板3之间的厚度差引起的波前像差由于光线之间的波长差引起的色差而被抵消 因此，尽管透明基板的差异，光束分别适当地冷凝在信息表面2a和3a上。

公开(公告)号：US20050007935A1

公开(公告)日：2005-01-13

申请号：US10886655

申请日：2004-07-09

申请人： Yasuyuki Sugi

发明人： Yasuyuki Sugi

IPC分类号： G02B13/00 ,  G02B3/04 ,  G02B3/10 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/1374 ,  G02B3/04 ,  G02B3/10 ,  G11B7/1275 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

摘要： The multi-wavelength lens for condensing a plurality of kinds of monochromatic light by refraction is disclosed. The lens comprises a common use area for all monochromatic light on at least one lens surface, the area sectioned into a plurality of aspherical zones each of which having a different refractive power; and step portions, each of which formed between adjacent aspherical zones of the plurality of aspherical zones and having a step height Dj (j=1,2,3,4, and so on, in order of closeness to a lens optical axis) in a direction parallel to the lens optical axis. At least half of the step portions satisfy a following formula when a minimum value and a maximum value of Aij for each wavelength λi are MIN(Aij) and MAX(Aij), respectively: MAX(Aij)/MIN(Aij)

摘要翻译： 公开了用于通过折射来冷凝多种单色光的多波长透镜。 透镜包括用于至少一个透镜表面上的所有单色光的共同使用区域，该区域被分成多个非球面区域，每个非球面区域具有不同的屈光力; 以及台阶部，其各自形成在所述多个非球面区域的相邻非球面区域之间，并且具有阶梯高度Dj（j = 1,2,3,4等，以与透镜光轴的接近顺序） 与透镜光轴平行的方向。 当每个波长兰德的Aij的最小值和最大值分别为MIN（Aij）和MAX（Aij）时，至少一部分台阶部分满足以下公式：MAX（Aij）/ MIN（Aij）<3其中 ，Aij = absolute（Bij-mij），Bij =（absolute（Dj））*（ni-1）/ lambdai-C，ni是波长lambdai的透镜的折射率，mij是最接近Bij的整数 ，而C是一个纠正术语。

公开(公告)号：US07733578B2

公开(公告)日：2010-06-08

申请号：US12176134

申请日：2008-07-18

申请人： Yasuyuki Sugi ,  Takesuke Maruyama

发明人： Yasuyuki Sugi ,  Takesuke Maruyama

IPC分类号： G02B13/18 ,  G11B7/00

CPC分类号： G11B7/1374 ,  G02B3/00 ,  G11B7/1353 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： When the DVD provided with the DVD substrate 2 having thickness t2 of 0.6 mm is installed in the optical disc apparatus, the light beam 4 having wavelength λ1=655 nm is used as luminous flux of numerical aperture NA=0.63 to be condensed on the information surface 2a on the DVD substrate 2. When the CD provided with the CD substrate 3 having thickness t2 of 1.2 mm is installed in the optical disc apparatus, the light beam 5 having wavelength λ2=790 nm is effectively used as luminous flux of approximate numerical aperture NA=0.45 to be condensed on the information surface 3a on the DVD substrate 3. The wavefront aberration caused by a thickness difference between the DVD substrate 2 and CD substrate 3 is canceled out by the chromatic aberration caused by a wavelength difference between the light beams 4 and 5. Therefore, in spite of the difference in the transparent substrates, the light beams are suitably condensed respectively on the information surface 2a and 3a.

摘要翻译： 当设置有厚度t2为0.6mm的DVD基板2的DVD安装在光盘装置中时，波长λ1= 655nm的光束4被用作数据孔径NA = 0.63的光通量，以在信息上被浓缩 表面2a在DVD基板2上。当具有厚度t2为1.2mm的CD基板3的CD安装在光盘装置中时，具有波长λ2= 790nm的光束5被有效地用作近似数值的光通量 孔径NA = 0.45被聚集在DVD基板3上的信息表面3a上。由DVD基板2和CD基板3之间的厚度差引起的波前像差由于光线之间的波长差引起的色差而被抵消 因此，尽管透明基板的差异，光束分别适当地冷凝在信息表面2a和3a上。

公开(公告)号：US20090040630A1

公开(公告)日：2009-02-12

申请号：US12232801

申请日：2008-09-24

申请人： Yoshiaki Minakawa ,  Yasuyuki Sugi

发明人： Yoshiaki Minakawa ,  Yasuyuki Sugi

IPC分类号： G02B11/02

CPC分类号： G02B9/08 ,  G02B13/003

摘要： An imaging lens unit comprising, in order from the object side, a first lens having a meniscus shape with its convex surface on the object side, an aperture stop and a second lens having a meniscus shape with its convex surface on the image side. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the object side of the first lens is 70 to 90 degrees. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the image side of the second lens is 70 to 90 degrees.

公开(公告)号：US20070263523A1

公开(公告)日：2007-11-15

申请号：US11797481

申请日：2007-05-03

申请人： Yasuyuki Sugi

发明人： Yasuyuki Sugi

IPC分类号： G11B7/00

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

摘要： The present invention aims at focusing a light beam on each of a plurality of kinds of optical recording media having different thicknesses of transparent substrates with a suitable wave-optic optical spot shape. In an objective lens optical system according to the present invention, at least one surface of an aberration correction plate is sectioned into five or more zones, including a first zone closest to an optical axis serving as a common zone, and four or more zones as a second and subsequent zones respectively having a lens surface shape corresponding to the thickness of each transparent substrate.

摘要翻译： 本发明的目的是将光束聚焦在具有合适的波光光斑形状的具有不同厚度的透明基板的多种类型的光记录介质中。 在根据本发明的物镜光学系统中，像差校正板的至少一个表面被分割成五个或更多个区域，包括最靠近用作公共区域的光轴的第一区域和四个或更多个区域 分别具有对应于每个透明基板的厚度的透镜表面形状的第二和随后的区域。

公开(公告)号：US06721242B2

公开(公告)日：2004-04-13

申请号：US10142896

申请日：2002-05-13

申请人： Kunikazu Ohnishi ,  Takeshi Shimano ,  Shigeru Nakamura ,  Masayuki Inoue ,  Yukio Fukui ,  Yasuyuki Sugi ,  Shinji Fujita ,  Mitsuhiko Ota

发明人： Kunikazu Ohnishi ,  Takeshi Shimano ,  Shigeru Nakamura ,  Masayuki Inoue ,  Yukio Fukui ,  Yasuyuki Sugi ,  Shinji Fujita ,  Mitsuhiko Ota

IPC分类号： G11B7095

CPC分类号： G11B7/131 ,  G11B7/00718 ,  G11B7/0901 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/094 ,  G11B7/0943

摘要： An optical detector for detecting at least three optical beams reflected by an optical information recording medium and outputting an electric signal, the optical detector having three light receiving areas each of which receives a respective one of the three optical beams and each of which has four light receiving surfaces, twelve signal lines to transmit an electric signal obtained on respective ones of the four light receiving surfaces of the three light receiving areas, selected ones of the twelve signal lines connected to the four light receiving surfaces of different ones of the three light receiving areas being joined together within the optical detector, and less than nine signal output lines formed by joining the selected ones of the twelve signal lines extend from the optical detector to a signal processing circuit.

摘要翻译： 一种用于检测由光学信息记录介质反射并输出电信号的至少三个光束的光学检测器，该光学检测器具有三个光接收区域，每个光接收区域接收三个光束中的相应一个，并且每个光接收区域具有四个光 接收表面，用于传输在三个光接收区域的四个光接收表面中的相应一个上获得的电信号的十二条信号线，连接到三个光接收区中的不同光接收表面的四个光接收表面的十二个信号线中的选定的一个 区域在光学检测器内连接在一起，并且通过连接十二条信号线中所选择的信号线形成的少于九条信号输出线从光学检测器延伸到信号处理电路。

公开(公告)号：US5872761A

公开(公告)日：1999-02-16

申请号：US919469

申请日：1997-08-28

申请人： Yasuyuki Sugi ,  Toshio Sugiyama ,  Nobuo Imada ,  Hidenori Shinohara ,  Yukio Fukui

发明人： Yasuyuki Sugi ,  Toshio Sugiyama ,  Nobuo Imada ,  Hidenori Shinohara ,  Yukio Fukui

IPC分类号： G11B7/00 ,  G11B7/135 ,  G11B19/12

CPC分类号： G11B7/13925 ,  G11B19/12 ,  G11B7/1376 ,  G11B7/1378 ,  G11B2007/0006

摘要： The present invention comprises an arrangement with removable optical element having a predetermined focal distance in the light path between a light source and an objective lens, so as to insert said optical element into the light path between the light source and the objective lens for playing back or recording onto one type of thickness of disk plates, as well as to remove it therefrom for playing back or recording onto another type of thickness of disk plates. Alternatively, by retaining variably the distance between the light source and the collimator lens, the distance between the light source and the collimator lens along with the light path is variably changed according to the thickness of the disk plate being inserted. Then by determining the type of the disk inserted and accordingly selectably inserting/removing the optical element, only one objective lens may be used to conform to the disk plates having different thicknesses.

摘要翻译： 本发明包括具有在光源和物镜之间的光路中具有预定焦距的可拆卸光学元件的装置，以便将所述光学元件插入光源和物镜之间的光路中以便回放 或记录在一种类型的盘片的厚度上，以及将其从中移除，以便播放或记录到另一种厚度的盘片上。 或者，通过可变地保持光源和准直透镜之间的距离，光源与准直透镜之间的距离以及光路可根据插入的盘片的厚度而变化。 然后，通过确定插入的盘的类型并相应地可选择地插入/移除光学元件，可以仅使用一个物镜来符合具有不同厚度的盘片。

公开(公告)号：US07414796B2

公开(公告)日：2008-08-19

申请号：US10985926

申请日：2004-11-12

申请人： Yasuyuki Sugi ,  Takesuke Maruyama

发明人： Yasuyuki Sugi ,  Takesuke Maruyama

IPC分类号： G02B13/18 ,  G11B7/00

CPC分类号： G11B7/1374 ,  G02B3/00 ,  G11B7/1353 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： When the DVD provided with the DVD substrate 2 having thickness t2 of 0.6 mm is installed in the optical disc apparatus, the light beam 4 having wavelength λ1=655 nm is used as luminous flux of numerical aperture NA=0.63 to be condensed on the information surface 2a on the DVD substrate 2. When the CD provided with the CD substrate 3 having thickness t2 of 1.2 mm is installed in the optical disc apparatus, the light beam 5 having wavelength λ2=790 nm is effectively used as luminous flux of approximate numerical aperture NA=0.45 to be condensed on the information surface 3a on the DVD substrate 3. The wavefront aberration caused by a thickness difference between the DVD substrate 2 and CD substrate 3 is canceled out by the chromatic aberration caused by a wavelength difference between the light beams 4 and 5. Therefore, in spite of the difference in the transparent substrates, the light beams are suitably condensed respectively on the information surface 2a and 3a.

摘要翻译： 当设置有厚度为0.2mm的DVD基板2的DVD被安装在光盘装置中时，波长λ1 = 655nm的光束4是 用作数值孔径NA = 0.63的光通量，以在DVD基板2上的信息表面2a上被冷凝。当安装有厚度为t2×1.2mm的CD基板3的CD时， 在光盘装置中，波长λ2λ= 790nm的光束5被有效地用作近似数值孔径NA = 0.45的光通量，以被聚集在DVD基板上的信息表面3a上 由DVD基板2和CD基板3之间的厚度差引起的波前像差由于光束4和5之间的波长差引起的色差而被抵消。因此，尽管透明基板 ，光束分别适当地冷凝 信息表面2a和3a。

公开(公告)号：US07411743B2

公开(公告)日：2008-08-12

申请号：US10886655

申请日：2004-07-09

申请人： Yasuyuki Sugi

发明人： Yasuyuki Sugi

IPC分类号： G02B13/02 ,  G02B13/00 ,  G11B7/00

CPC分类号： G11B7/1374 ,  G02B3/04 ,  G02B3/10 ,  G11B7/1275 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

摘要： The multi-wavelength lens for condensing a plurality of kinds of monochromatic light by refraction is disclosed. The lens comprises a common use area for all monochromatic light on at least one lens surface, the area sectioned into a plurality of aspherical zones each of which having a different refractive power; and step portions, each of which formed between adjacent aspherical zones of the plurality of aspherical zones and having a step height Dj (j=1,2,3,4, and so on, in order of closeness to a lens optical axis) in a direction parallel to the lens optical axis. At least half of the step portions satisfy a following formula when a minimum value and a maximum value of Aij for each wavelength λi are MIN(Aij) and MAX(Aij), respectively: MAX(Aij)/MIN(Aij)

摘要翻译： 公开了用于通过折射来冷凝多种单色光的多波长透镜。 透镜包括用于至少一个透镜表面上的所有单色光的共同使用区域，该区域被分成多个非球面区域，每个非球面区域具有不同的屈光力; 以及台阶部，其各自形成在所述多个非球面区域的相邻非球面区域之间，并且具有阶梯高度Dj（j = 1,2,3,4等，以与透镜光轴的接近顺序） 与透镜光轴平行的方向。 当每个波长兰德的Aij的最小值和最大值分别为MIN（Aij）和MAX（Aij）时，至少有一半阶跃部分满足以下公式：<？in-line-formula description =“In- 行公式“end =”lead“？> MAX（Aij）/ MIN（Aij）<3 <？in-line-formula description =”In-line Formulas“end =”tail“？>其中，Aij = absolute - mij），Bij =（absolute（Dj））*（ni-1）/ lambdai-C，ni是用于波长lambdai的透镜的折射率，mij是最接近Bij的整数，C是校正 术语。

公开(公告)号：US20070229982A1

公开(公告)日：2007-10-04

申请号：US11729826

申请日：2007-03-30

申请人： Yoshiaki Minakawa ,  Yasuyuki Sugi

发明人： Yoshiaki Minakawa ,  Yasuyuki Sugi

IPC分类号： G02B9/08

CPC分类号： G02B9/08 ,  G02B13/003

摘要： An imaging lens unit comprising, in order from the object side, a first lens having a meniscus shape with its convex surface on the object side, an aperture stop and a second lens having a meniscus shape with its convex surface on the image side. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the object side of the first lens is 70 to 90 degrees. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the image side of the second lens is 70 to 90 degrees.

摘要翻译： 一种成像透镜单元，其从物体侧起依次包括具有在物体侧上具有凸面的弯月面形状的第一透镜，具有在像侧上具有凸面的弯月面形状的孔径光阑和第二透镜。 在第一透镜的物体侧的表面的透镜表面有效直径的范围内的切线角的最大值为70〜90度。 在第二透镜的图像侧的表面的透镜表面有效直径的范围内的切线角的最大值为70度至90度。