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    Prism and optical device
    1.
    发明授权
    Prism and optical device 有权
    棱镜和光学装置

    公开(公告)号：US07978426B2

    公开(公告)日：2011-07-12

    申请号：US12280635

    申请日：2007-03-07

    申请人： Tomokazu Tokunaga ,  Eiichi Nagaoka ,  Minoru Onoda

    发明人： Tomokazu Tokunaga ,  Eiichi Nagaoka ,  Minoru Onoda

    IPC分类号： G02B5/04

    CPC分类号： G02B5/04

    摘要： A prism (10) is in the form of a polygonal prism and has a first optical surface (11), a second optical surface (12) and a third optical surface (13) formed on different surfaces of the prism. A light entrance region (11a) is provided at the center of the first optical surface (11), a light exit region (12a) is provided at the center of the second optical surface (12) and a substantially flat light reflecting region (13a) is provided at the center of the third optical surface (13). Suppose that there is a virtual surface between the light reflecting region (13a) and the first optical surface (11), the virtual surface is positioned more inward in the prism than a peripheral region of the third optical surface (13) extending from the light reflecting region (13a) to an edge (14) between the third optical surface (13) and the first optical surface (11).

    摘要翻译： 棱镜（10）为多棱镜的形式，具有形成在棱镜的不同表面上的第一光学表面（11），第二光学表面（12）和第三光学表面（13）。 在第一光学表面（11）的中心处设置有光入射区域（11a），在第二光学表面（12）的中心处设置有光出射区域（12a），并且基本上平坦的光反射区域 ）设置在第三光学面（13）的中心。 假设在光反射区域（13a）和第一光学表面（11）之间存在虚拟表面，虚拟表面位于比从光线延伸的第三光学表面（13）的周边区域更靠内侧的位置 反射区域（13a）到第三光学表面（13）和第一光学表面（11）之间的边缘（14）。

    Prism and Optical Device
    2.
    发明申请
    Prism and Optical Device 有权
    棱镜和光学设备

    公开(公告)号：US20090002857A1

    公开(公告)日：2009-01-01

    申请号：US12280635

    申请日：2007-03-07

    申请人： Tomokazu Tokunaga ,  Eiichi Nagaoka ,  Minoru Onoda

    发明人： Tomokazu Tokunaga ,  Eiichi Nagaoka ,  Minoru Onoda

    IPC分类号： G02B5/04

    CPC分类号： G02B5/04

    摘要： A prism (10) is in the form of a polygonal prism and has a first optical surface (11), a second optical surface (12) and a third optical surface (13) formed on different surfaces of the prism. A light entrance region (11a) is provided at the center of the first optical surface (11), a light exit region (12a) is provided at the center of the second optical surface (12) and a substantially flat light reflecting region (13a) is provided at the center of the third optical surface (13). Suppose that there is a virtual surface between the light reflecting region (13a) and the first optical surface (11), the virtual surface is positioned more inward in the prism than a peripheral region of the third optical surface (13) extending from the light reflecting region (13a) to an edge (14) between the third optical surface (13) and the first optical surface (11).

    摘要翻译： 棱镜（10）为多棱镜的形式，具有形成在棱镜的不同表面上的第一光学表面（11），第二光学表面（12）和第三光学表面（13）。 在第一光学表面（11）的中心处设置有光入射区域（11a），在第二光学表面（12）的中心处设置有光出射区域（12a），并且基本上平坦的光反射区域 ）设置在第三光学面（13）的中心。 假设在光反射区域（13a）和第一光学表面（11）之间存在虚拟表面，虚拟表面位于比从光线延伸的第三光学表面（13）的周边区域更靠内侧的位置 反射区域（13a）到第三光学表面（13）和第一光学表面（11）之间的边缘（14）。

    Die and glass material for forming glass substrate, method for manufacturing glass substrate, and magnetic disk glass substrate
    6.
    发明授权
    Die and glass material for forming glass substrate, method for manufacturing glass substrate, and magnetic disk glass substrate 失效
    用于形成玻璃基板的模具和玻璃材料，用于制造玻璃基板的方法和磁盘玻璃基板

    公开(公告)号：US06718799B2

    公开(公告)日：2004-04-13

    申请号：US10358468

    申请日：2003-02-04

    申请人： Kazuaki Takagi ,  Kunio Hibino ,  Tomokazu Tokunaga ,  Fujio Okuyama ,  Minoru Onoda

    发明人： Kazuaki Takagi ,  Kunio Hibino ,  Tomokazu Tokunaga ,  Fujio Okuyama ,  Minoru Onoda

    IPC分类号： C03B1116

    CPC分类号： C03B11/12 ,  C03B11/082 ,  C03B11/088 ,  C03B2215/41 ,  C03B2215/44 ,  C03B2215/46 ,  C03B2215/65

    摘要： A glass material (4) is placed in a forming die including a pair of upper and lower dies (1, 2) and a control member (3) for controlling the space between the upper and the lower die, and then heated, softened, and molded by pressure into a glass substrate in the shape of a parallel plate. The amount of thermal contraction of the control member is smaller than that of the glass material. Therefore, the glass substrate is released from the die when cooled after molding. The present invention can provide a glass substrate that is excellent in smoothness and form accuracy of the surface, and that is suitable for recording media such as magnetic disks that are inexpensive and suitable for mass production.

    摘要翻译： 将玻璃材料（4）放置在包括一对上模具和下模具（1）和成形模具（3）的成形模具中，用于控制上模和下模之间的空间，然后加热，软化， 并通过压力成型为平行板形状的玻璃基板。 控制构件的热收缩量小于玻璃材料的热收缩量。 因此，在成型后冷却时，玻璃基板从模具中脱模。 本发明可以提供一种玻璃基板，该玻璃基板的表面的平滑度和形状精度优异，适用于记录便宜且适合批量生产的诸如磁盘的介质。

    Glass substrate forming mold and production method for glass substrate
    7.
    发明授权
    Glass substrate forming mold and production method for glass substrate 有权
    玻璃基板成型模具及玻璃基板的制造方法

    公开(公告)号：US06539750B1

    公开(公告)日：2003-04-01

    申请号：US09719695

    申请日：2000-12-14

    申请人： Kazuaki Takagi ,  Kunio Hibino ,  Tomokazu Tokunaga ,  Fujio Okuyama ,  Minoru Onoda

    发明人： Kazuaki Takagi ,  Kunio Hibino ,  Tomokazu Tokunaga ,  Fujio Okuyama ,  Minoru Onoda

    IPC分类号： C03B1116

    CPC分类号： C03B11/12 ,  C03B11/082 ,  C03B11/088 ,  C03B2215/41 ,  C03B2215/44 ,  C03B2215/46 ,  C03B2215/65

    摘要： A glass material (4) is placed in a forming die including a pair of upper and lower dies (1, 2) and a control member (3) for controlling the space between the upper and the lower die, and then heated, softened, and molded by pressure into a glass substrate in the shape of a parallel plate. The amount of thermal contraction of the control member is smaller than that of the glass material. Therefore, the glass substrate is released from the die when cooled after molding. The present invention can provide a glass substrate that is excellent in smoothness and form accuracy of the surface, and that is suitable for recording media such as magnetic disks that are inexpensive and suitable for mass production.

    摘要翻译： 将玻璃材料（4）放置在包括一对上模具和下模具（1）和成形模具（3）的成形模具中，用于控制上模和下模之间的空间，然后加热，软化， 并通过压力成型为平行板形状的玻璃基板。 控制构件的热收缩量小于玻璃材料的热收缩量。 因此，在成型后冷却时，玻璃基板从模具中脱模。 本发明可以提供一种玻璃基板，该玻璃基板的表面的平滑度和形状精度优异，适用于记录便宜且适合批量生产的诸如磁盘的介质。

    BONDED OPTICAL ELEMENT
    9.
    发明申请
    BONDED OPTICAL ELEMENT 有权
    粘合光学元件

    公开(公告)号：US20080297919A1

    公开(公告)日：2008-12-04

    申请号：US12121227

    申请日：2008-05-15

    申请人： Tetsuya SUZUKI ,  Tomokazu Tokunaga

    发明人： Tetsuya SUZUKI ,  Tomokazu Tokunaga

    IPC分类号： G02B13/18

    CPC分类号： G02B13/0025 ,  G02B13/006 ,  G11B2007/13727

    摘要： In a bonded optical element, a second optical element is bonded to a first optical element by forming the second optical element by heating and pressing against the first optical element a second optical element material. The first optical element is a concave lens. A bonded face of an intermediate portion between a lens potion and an edge portion of the first optical element is substantially in an R shape in section.

    摘要翻译： 在粘结光学元件中，通过对第一光学元件进行加热和压制而形成第二光学元件来形成第二光学元件，将第二光学元件接合到第一光学元件。 第一光学元件是凹透镜。 第一光学元件的透镜部分和边缘部分之间的中间部分的接合面基本上为R形截面。

    Optical lens moving mechanism
    10.
    发明授权
    Optical lens moving mechanism 失效
    光学透镜移动机构

    公开(公告)号：US4583827A

    公开(公告)日：1986-04-22

    申请号：US559027

    申请日：1983-12-07

    申请人： Tomokazu Tokunaga ,  Jirou Kajino ,  Masataka Izaki

    发明人： Tomokazu Tokunaga ,  Jirou Kajino ,  Masataka Izaki

    IPC分类号： G02B7/10

    CPC分类号： G02B7/10

    摘要： An optical lens moving mechanism for zoom lens systems using a plane cam is disclosed. A lens system having an optical axis comprises at least two lens groups. A first lens holder and a second lens holder which respectively hold the two lens groups are moved along a guide parallel with the optical axis by a rotational movement of the plane cam which moves on a plane parallel with the optical axis, to zoom the lens system. The mechanism further includes a zooming motor, a position detector, and a controller to control the rotation of the motor, according to the zooming position of the lens system, to achieve a uniform zooming speed.

    摘要翻译： 公开了一种使用平面凸轮的变焦透镜系统的光学透镜移动机构。 具有光轴的透镜系统包括至少两个透镜组。 通过在与光轴平行的平面上移动的平面凸轮的旋转运动，分别保持两个透镜组的第一透镜保持器和第二透镜保持器沿着与光轴平行的引导件移动，以使透镜系统 。 该机构还包括变焦电动机，位置检测器和控制器，以根据透镜系统的变焦位置来控制电动机的旋转，以实现均匀的变焦速度。