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1. 发明授权

US06839315B2 Optical head and optical pickup having improved thermal coefficient matching for thermal expansion adjustment 失效
标题翻译：具有改进的热系数匹配用于热膨胀调节的光头和光学拾取器
公开(公告)号：US06839315B2
公开(公告)日：2005-01-04
申请号：US09940469
申请日：2001-08-29
申请人： Koichiro Kishima , Akira Kouchiyama , Kenji Yamamoto , Gakuji Hashimoto , Atsushi Iida
发明人： Koichiro Kishima , Akira Kouchiyama , Kenji Yamamoto , Gakuji Hashimoto , Atsushi Iida
IPC分类号： G11B7/09 , G11B7/135 , G11B7/22 , G11B7/00
CPC分类号： G11B7/1374 , G11B7/0935 , G11B7/22
摘要： An optical head, able to reduce thermal stress generated in an optical lens mounted on a bobbin, having a bobbin formed with a center hole and an optical lens mounted on the bobbin via a thermal expansion adjustment member 40 formed with an opening. The optical lens has a substrate formed by an optical material different from the bobbin in coefficient of thermal expansion. The substrate has a convex part functioning as a convex lens and a flat part positioned around the convex part. The flat part is fixed to the thermal expansion adjustment member so that the convex part fits in the opening. The optical lens is placed so that a center axis of the convex part or an extension thereof passes through the center hole of the bobbin and the center axis of the convex part coincides with a center hole of the bobbin.

2. 发明授权

US06946237B2 Optical device, method for producing the same and recording and/or reproducing apparatus employing the same 失效
公开(公告)号：US06946237B2
公开(公告)日：2005-09-20
申请号：US09943358
申请日：2001-08-31
申请人： Akira Kouchiyama , Koichiro Kishima
发明人： Akira Kouchiyama , Koichiro Kishima
IPC分类号： G02B13/00 , G02B5/00 , G02B9/06 , G11B7/135 , G03C5/00 , G11B7/00
CPC分类号： G11B7/1374 , G02B5/005 , G02B9/06 , G11B7/1381 , G11B7/139 , G11B2007/13727
摘要： An optical device used for converging a light beam on a signal recording surface of an optical disc includes an optical lens for converging the light beam on a signal recording surface of the optical disc and a light barrier portion provided on a surface of the optical lens facing the optical disc. The light barrier portion includes a light transmitting aperture through which is transmitted the light beam converged by the optical lens. The light beam illuminated on the optical disc has its diameter controlled by this light transmitting aperture. The light radiated by a light source so as to be incident to the optical device is converged by the optical lens. The light converged by the optical lens is transmitted through the light transmitting aperture and illuminated on the signal recording surface of the optical disc. The diameter of the light beam illuminated on the signal recording surface of the optical disc is controlled by the light transmitting aperture, and thus the numerical aperture NA of the optical device is determined.

3. 发明申请

US20050195723A1 Optical device, method for producing the same and recording and/or reproducing apparatus employing the same 审中-公开
公开(公告)号：US20050195723A1
公开(公告)日：2005-09-08
申请号：US11105545
申请日：2005-04-14
申请人： Akira Kouchiyama , Koichiro Kishima
发明人： Akira Kouchiyama , Koichiro Kishima
IPC分类号： G02B13/00 , G02B5/00 , G02B9/06 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1374 , G02B5/005 , G02B9/06 , G11B7/1381 , G11B7/139 , G11B2007/13727
摘要： An optical device used for converging a light beam on a signal recording surface of an optical disc includes an optical lens for converging the light beam on a signal recording surface of the optical disc and a light barrier portion provided on a surface of the optical lens facing the optical disc. The light barrier portion includes a light transmitting aperture through which is transmitted the light beam converged by the optical lens. The light beam illuminated on the optical disc has its diameter controlled by this light transmitting aperture. The light radiated by a light source so as to be incident to the optical device is converged by the optical lens. The light converged by the optical lens is transmitted through the light transmitting aperture and illuminated on the signal recording surface of the optical disc. The diameter of the light beam illuminated on the signal recording surface of the optical disc is controlled by the light transmitting aperture, and thus the numerical aperture NA of the optical device is determined.

4. 发明授权

US06901045B2 Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus 失效
标题翻译：光学透镜及其制造方法，制造光学透镜阵列的方法，聚焦误差信号生成方法以及光学拾取装置
公开(公告)号：US06901045B2
公开(公告)日：2005-05-31
申请号：US10926069
申请日：2004-08-26
申请人： Koichiro Kishima , Akira Kouchiyama
发明人： Koichiro Kishima , Akira Kouchiyama
IPC分类号： G02B3/10 , B29D11/00 , G02B3/00 , G02B3/02 , G02B3/04 , G02B3/06 , G02B7/02 , G02B13/08 , G02B13/18 , G02B27/10 , G03C5/00 , G06F7/00 , G06F17/30 , G11B7/00 , G11B7/09 , G11B7/135
CPC分类号： G11B7/1381 , G02B3/04 , G11B7/0909 , G11B7/094 , G11B7/1378 , G11B7/22
摘要： An optical lens whose focal length is different on first and second planes perpendicular to each other is provided. The optical lens is configured such that a convex element, which is formed integrally with a substrate having a flat face, has a convex curved face that functions as an optical lens and is shaped such that the curvature on a first cross section and the curvature on a second cross section perpendicular to and intersecting with the first cross section are different from each other, whereby the focal lengths on the first and second cross sections are different from each other. A groove of a substantially elliptical shape or a substantially rectangular shape is formed along the boundary between the substrate and the convex element. The optical lens is used to produce a focus error signal or is incorporated into an optical pickup apparatus.
摘要翻译：提供了在彼此垂直的第一和第二平面上的焦距不同的光学透镜。光学透镜被构造成使得与具有平坦面的基板一体形成的凸起元件具有用作光学透镜的凸曲面，并且其形状使得第一横截面上的曲率和曲率垂直于第一横截面并且与第一横截面相交的第二横截面彼此不同，由此第一横截面和第二横截面上的焦距彼此不同。沿着基板和凸起元件之间的边界形成大致椭圆形或大致矩形形状的凹槽。光学透镜用于产生聚焦误差信号或被并入到光学拾取装置中。

5. 发明授权

US06747811B2 Optical system, method of producing optical system, and optical pickup 失效
标题翻译：光学系统，光学系统的制造方法和光学拾取器
公开(公告)号：US06747811B2
公开(公告)日：2004-06-08
申请号：US09940938
申请日：2001-08-29
申请人： Koichiro Kishima , Akira Kouchiyama
发明人： Koichiro Kishima , Akira Kouchiyama
IPC分类号： G02B1318
CPC分类号： G11B7/1372 , G02B3/00 , G02B7/021 , G02B7/025 , G11B7/22
摘要： An optical system capable of reducing trouble in assembly and skew adjustment, comprising first and second optical lenses arranged so that their optical axes coincide or substantially coincide, wherein the first optical lens has a substrate comprised of an optical material, the substrate has a convex portion serving as a convex lens, a flat portion positioned around the convex portion, and an outer circumference portion positioned around the flat portion, a thickness of the substrate at the outer circumference portion is greater than a thickness of the substrate at the convex portion, and the outer circumference portion of the first optical lens and that of the second optical lens are fixed in place by an adhesive so that the convex portion of the first optical lens faces the convex portion of the second optical lens.
摘要翻译：一种能够减少组装和偏斜调整中的麻烦的光学系统，包括布置成使它们的光轴重合或基本重合的第一和第二光学透镜，其中第一光学透镜具有由光学材料构成的衬底，该衬底具有凸部用作凸透镜，围绕凸部定位的平坦部分和位于平坦部分周围的外周部分，外周部分处的基板的厚度大于凸部处的基板的厚度，并且第一光学透镜的外周部分和第二光学透镜的外周部分通过粘合剂固定就位，使得第一光学透镜的凸部面向第二光学透镜的凸部。

6. 发明授权

US06980373B2 Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus 失效
公开(公告)号：US06980373B2
公开(公告)日：2005-12-27
申请号：US11136453
申请日：2005-05-25
申请人： Koichiro Kishima , Akira Kouchiyama
发明人： Koichiro Kishima , Akira Kouchiyama
IPC分类号： G02B3/10 , B29D11/00 , G02B3/00 , G02B3/02 , G02B3/04 , G02B3/06 , G02B7/02 , G02B13/08 , G02B13/18 , G02B27/10 , G03C5/00 , G06F7/00 , G06F17/30 , G11B7/00 , G11B7/09 , G11B7/135
CPC分类号： G11B7/1381 , G02B3/04 , G11B7/0909 , G11B7/094 , G11B7/1378 , G11B7/22
摘要： An optical lens whose focal length is different on first and second planes perpendicular to each other is provided. The optical lens is configured such that a convex element, which is formed integrally with a substrate having a flat face, has a convex curved face that functions as an optical lens and is shaped such that the curvature on a first cross section and the curvature on a second cross section perpendicular to and intersecting with the first cross section are different from each other, whereby the focal lengths on the first and second cross sections are different from each other. A groove of a substantially elliptical shape or a substantially rectangular shape is formed along the boundary between the substrate and the convex element. The optical lens is used to produce a focus error signal or is incorporated into an optical pickup apparatus.

7. 发明授权

US06894844B2 Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus 失效
公开(公告)号：US06894844B2
公开(公告)日：2005-05-17
申请号：US10784769
申请日：2004-02-24
申请人： Koichiro Kishima , Akira Kouchiyama
发明人： Koichiro Kishima , Akira Kouchiyama
IPC分类号： G02B3/10 , B29D11/00 , G02B3/00 , G02B3/02 , G02B3/04 , G02B3/06 , G02B7/02 , G02B13/08 , G02B13/18 , G02B27/10 , G03C5/00 , G06F7/00 , G06F17/30 , G11B7/00 , G11B7/09 , G11B7/135
CPC分类号： G11B7/1381 , G02B3/04 , G11B7/0909 , G11B7/094 , G11B7/1378 , G11B7/22
摘要： An optical lens whose focal length is different on first and second planes perpendicular to each other is provided. The optical lens is configured such that a convex element, which is formed integrally with a substrate having a flat face, has a convex curved face that functions as an optical lens and is shaped such that the curvature on a first cross section and the curvature on a second cross section perpendicular to and intersecting with the first cross section are different from each other, whereby the focal lengths on the first and second cross sections are different from each other. A groove of a substantially elliptical shape or a substantially rectangular shape is formed along the boundary between the substrate and the convex element. The optical lens is used to produce a focus error signal or is incorporated into an optical pickup apparatus.

8. 发明授权

US06842296B2 Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus 失效
标题翻译：光学透镜及其制造方法，制造光学透镜阵列的方法，聚焦误差信号生成方法以及光学拾取装置
公开(公告)号：US06842296B2
公开(公告)日：2005-01-11
申请号：US10784797
申请日：2004-02-24
申请人： Koichiro Kishima , Akira Kouchiyama
发明人： Koichiro Kishima , Akira Kouchiyama
IPC分类号： G02B3/10 , B29D11/00 , G02B3/00 , G02B3/02 , G02B3/04 , G02B3/06 , G02B7/02 , G02B13/08 , G02B13/18 , G02B27/10 , G03C5/00 , G06F7/00 , G06F17/30 , G11B7/00 , G11B7/09 , G11B7/135
CPC分类号： G11B7/1381 , G02B3/04 , G11B7/0909 , G11B7/094 , G11B7/1378 , G11B7/22
摘要： An optical lens whose focal length is different on first and second planes perpendicular to each other is provided. The optical lens is configured such that a convex element, which is formed integrally with a substrate having a flat face, has a convex curved face that functions as an optical lens and is shape such that the curvature on a first cross section and the curvature on a second cross section perpendicular to and intersecting with the first cross section are different from each other, whereby the focal lengths on the first and second cross sections are different from each other. A groove of a substantially elliptical shape or a substantially rectangular shape is formed along the boundary between the substrate and the convex element. The optical lens is used to produce a focus error signal or is incorporated into an optical pickup apparatus.
摘要翻译：提供了在彼此垂直的第一和第二平面上的焦距不同的光学透镜。光学透镜被构造成使得与具有平坦面的基板一体形成的凸形元件具有用作光学透镜的凸曲面，并且其形状使得第一横截面上的曲率和曲率垂直于第一横截面并且与第一横截面相交的第二横截面彼此不同，由此第一横截面和第二横截面上的焦距彼此不同。沿着基板和凸起元件之间的边界形成大致椭圆形或大致矩形形状的凹槽。光学透镜用于产生聚焦误差信号或被并入到光学拾取装置中。

9. 发明授权

US06831790B2 Optical element, method for producing the same, and optical pickup 失效
标题翻译：光学元件，其制造方法和光学拾取器
公开(公告)号：US06831790B2
公开(公告)日：2004-12-14
申请号：US09933151
申请日：2001-08-21
申请人： Koichiro Kishima , Akira Kouchiyama
发明人： Koichiro Kishima , Akira Kouchiyama
IPC分类号： G02B308
CPC分类号： G02B3/00 , G11B7/1374 , G11B7/22
摘要： An optical element having a substrate formed by an optical material and able to improve mechanical strength, wherein the substrate has a convex part functioning as a convex lens, a flat part positioned around the convex part, and an outer circumference part positioned around the flat part. The thickness of the substrate at the outer circumference part is greater than that of the substrate at the flat part.
摘要翻译：一种光学元件，具有由光学材料形成并能够提高机械强度的基板，其中，所述基板具有用作凸透镜的凸起部分，位于所述凸部周围的平坦部分，以及围绕所述平坦部分定位的外周部分。外周部的基板的厚度大于平坦部的基板的厚度。

10. 发明授权

US07061691B2 Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus 失效
标题翻译：光学透镜及其制造方法，制造光学透镜阵列的方法，聚焦误差信号生成方法以及光学拾取装置
公开(公告)号：US07061691B2
公开(公告)日：2006-06-13
申请号：US11079171
申请日：2005-03-15
申请人： Koichiro Kishima , Akira Kouchiyama
发明人： Koichiro Kishima , Akira Kouchiyama
IPC分类号： G02B3/02 , G02B13/08 , G11B7/00
CPC分类号： G11B7/1381 , G02B3/04 , G11B7/0909 , G11B7/094 , G11B7/1378 , G11B7/22
摘要： An optical lens whose focal length is different on first and second planes perpendicular to each other is provided. The optical lens is configured such that a convex element, which is formed integrally with a substrate having a flat face, has a convex curved face that functions as an optical lens and is shaped such that the curvature on a first cross section and the curvature on a second cross section perpendicular to and intersecting with the first cross section are different from each other, whereby the focal lengths on the first and second cross sections are different from each other. A groove of a substantially elliptical shape or a substantially rectangular shape is formed along the boundary between the substrate and the convex element. The optical lens is used to produce a focus error signal or is incorporated into an optical pickup apparatus.
摘要翻译：提供了在彼此垂直的第一和第二平面上的焦距不同的光学透镜。光学透镜被构造成使得与具有平坦面的基板一体形成的凸起元件具有用作光学透镜的凸曲面，并且其形状使得第一横截面上的曲率和曲率垂直于第一横截面并且与第一横截面相交的第二横截面彼此不同，由此第一横截面和第二横截面上的焦距彼此不同。沿着基板和凸起元件之间的边界形成大致椭圆形或大致矩形形状的凹槽。光学透镜用于产生聚焦误差信号或被并入到光学拾取装置中。

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