利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

96 条记录 (耗时 0.041 秒)

    Object lens, optical pickup, and optical disc device
    1.
    发明授权
    Object lens, optical pickup, and optical disc device 有权
    物镜，光拾取器和光盘装置

    公开(公告)号：US08102749B2

    公开(公告)日：2012-01-24

    申请号：US12961914

    申请日：2010-12-07

    申请人： Kazumasa Kaneda ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    发明人： Kazumasa Kaneda ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

    摘要： An optical pickup includes: a first emitting unit to emit an optical beam of a first wavelength; a second emitting unit to emit an optical beam of a second wavelength; a third emitting unit to emit an optical beam of a third wavelength; an object lens to condense optical beams emitted from the first through third emitting units onto a signal recording face of an optical disc; and a diffraction unit provided on one face of an optical element or the object lens positioned on the optical path of the optical beams of the first through third wavelengths; wherein the diffraction unit includes a generally circular first diffraction region provided on the innermost perimeter, a ring zone shaped second diffraction region provided on the outer side of the first diffraction region, and a ring zone shaped third diffraction region provided on the outer side of the second diffraction region.

    摘要翻译： 光拾取器包括：发射第一波长的光束的第一发射单元; 第二发光单元，发射第二波长的光束; 第三发光单元，发射第三波长的光束; 用于将从第一至第三发射单元发射的光束冷凝到光盘的信号记录面上的物镜; 以及设置在位于所述第一至第三波长的光束的光路上的光学元件或所述物镜的一个面上的衍射单元; 其特征在于，所述衍射单元包括设置在所述最内周边的大致圆形的第一衍射区域，设置在所述第一衍射区域的外侧的环形带状的第二衍射区域和设置在所述第一衍射区域的外侧的环形带状的第三衍射区域 第二衍射区域。

    Object lens, optical pickup, and optical disc device
    2.
    发明授权
    Object lens, optical pickup, and optical disc device 有权
    物镜，光拾取器和光盘装置

    公开(公告)号：US07924684B2

    公开(公告)日：2011-04-12

    申请号：US12142351

    申请日：2008-06-19

    申请人： Kazumasa Kaneda ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    发明人： Kazumasa Kaneda ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

    摘要： An optical pickup includes: a first emitting unit to emit an optical beam of a first wavelength; a second emitting unit to emit an optical beam of a second wavelength; a third emitting unit to emit an optical beam of a third wavelength; an object lens to condense optical beams emitted from the first through third emitting units onto a signal recording face of an optical disc; and a diffraction unit provided on one face of an optical element or the object lens positioned on the optical path of the optical beams of the first through third wavelengths; wherein the diffraction unit includes a generally circular first diffraction region provided on the innermost perimeter, a ring zone shaped second diffraction region provided on the outer side of the first diffraction region, and a ring zone shaped third diffraction region provided on the outer side of the second diffraction region.

    摘要翻译： 光拾取器包括：发射第一波长的光束的第一发射单元; 第二发光单元，发射第二波长的光束; 第三发光单元，发射第三波长的光束; 用于将从第一至第三发射单元发射的光束冷凝到光盘的信号记录面上的物镜; 以及设置在位于所述第一至第三波长的光束的光路上的光学元件或所述物镜的一个面上的衍射单元; 其特征在于，所述衍射单元包括设置在所述最内周边的大致圆形的第一衍射区域，设置在所述第一衍射区域的外侧的环形带状的第二衍射区域和设置在所述第一衍射区域的外侧的环形带状的第三衍射区域 第二衍射区域。

    Optical pickup and optical device for three different types of optical discs
    3.
    发明授权
    Optical pickup and optical device for three different types of optical discs 失效
    用于三种不同类型光盘的光学拾取和光学装置

    公开(公告)号：US07986595B2

    公开(公告)日：2011-07-26

    申请号：US12245847

    申请日：2008-10-06

    申请人： Kazumasa Kaneda ,  Yoshito Asoma ,  Kazuyuki Takahashi

    发明人： Kazumasa Kaneda ,  Yoshito Asoma ,  Kazuyuki Takahashi

    IPC分类号： G11B7/135 ,  G11B7/00

    CPC分类号： G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An optical pickup for performing recording and/or playback of information by selectively irradiating the corresponding wavelength optical beam to first through third optical discs having a protection layer with different thickness, includes emission units for emitting first-wavelength through third-wavelength optical beams corresponding to the respective optical discs respectively, a condensing optical device for condensing each wavelength optical beam on an optical disc signal recording face, a divergence angle transformation device, which can be moved in the optical axis direction, for transforming the divergence angle of each wavelength optical beam according to the moved position in the optical axis direction so as to obtain a predetermined divergence angle, and a detector having a common light receiving unit for receiving each wavelength optical beam separated by an optical path separating unit and returned, with the condensing optical device condensing each wavelength optical beam on the corresponding optical disc signal recording face appropriately.

    摘要翻译： 用于通过选择性地将相应的波长光束照射到具有不同厚度的保护层的第一至第三光盘来执行信息的记录和/或重放的光学拾取器包括用于通过与第一波长相对应的第三波长光束发射第一波长的发射单元 相应的光盘，用于聚光光盘信号记录面上的每个波长光束的聚光光学装置，可沿光轴方向移动的发散角变换装置，用于变换每个波长光束的发散角 根据光轴方向的移动位置以获得预定的发散角;以及检测器，其具有用于接收由光路分离单元分离的每个波长光束的共同的光接收单元，并且返回，聚光光学装置冷凝 每个波长光学bea m对应的光盘信号记录面。

    OBJECT LENS, OPTICAL PICKUP, AND OPTICAL DISC DEVICE
    4.
    发明申请
    OBJECT LENS, OPTICAL PICKUP, AND OPTICAL DISC DEVICE 有权
    对象镜头，光学拾取和光盘设备

    公开(公告)号：US20110075543A1

    公开(公告)日：2011-03-31

    申请号：US12961914

    申请日：2010-12-07

    申请人： Kazumasa KANEDA ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    发明人： Kazumasa KANEDA ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    IPC分类号： G11B7/135

    CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

    摘要： An optical pickup includes: a first emitting unit to emit an optical beam of a first wavelength; a second emitting unit to emit an optical beam of a second wavelength; a third emitting unit to emit an optical beam of a third wavelength; an object lens to condense optical beams emitted from the first through third emitting units onto a signal recording face of an optical disc; and a diffraction unit provided on one face of an optical element or the object lens positioned on the optical path of the optical beams of the first through third wavelengths; wherein the diffraction unit includes a generally circular first diffraction region provided on the innermost perimeter, a ring zone shaped second diffraction region provided on the outer side of the first diffraction region, and a ring zone shaped third diffraction region provided on the outer side of the second diffraction region.

    摘要翻译： 光拾取器包括：发射第一波长的光束的第一发射单元; 第二发光单元，发射第二波长的光束; 第三发光单元，发射第三波长的光束; 用于将从第一至第三发射单元发射的光束冷凝到光盘的信号记录面上的物镜; 以及设置在位于所述第一至第三波长的光束的光路上的光学元件或所述物镜的一个面上的衍射单元; 其特征在于，所述衍射单元包括设置在所述最内周边的大致圆形的第一衍射区域，设置在所述第一衍射区域的外侧的环形带状的第二衍射区域和设置在所述第一衍射区域的外侧的环形带状的第三衍射区域 第二衍射区域。

    OBJECT LENS, OPTICAL PICKUP, AND OPTICAL DISC DEVICE
    5.
    发明申请
    OBJECT LENS, OPTICAL PICKUP, AND OPTICAL DISC DEVICE 有权
    对象镜头，光学拾取和光盘设备

    公开(公告)号：US20090034398A1

    公开(公告)日：2009-02-05

    申请号：US12142351

    申请日：2008-06-19

    申请人： Kazumasa KANEDA ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    发明人： Kazumasa KANEDA ,  Yoshito Asoma ,  Toshifumi Yasui ,  Kazuyuki Takahashi

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

    摘要： An optical pickup includes: a first emitting unit to emit an optical beam of a first wavelength; a second emitting unit to emit an optical beam of a second wavelength; a third emitting unit to emit an optical beam of a third wavelength; an object lens to condense optical beams emitted from the first through third emitting units onto a signal recording face of an optical disc; and a diffraction unit provided on one face of an optical element or the object lens positioned on the optical path of the optical beams of the first through third wavelengths; wherein the diffraction unit includes a generally circular first diffraction region provided on the innermost perimeter, a ring zone shaped second diffraction region provided on the outer side of the first diffraction region, and a ring zone shaped third diffraction region provided on the outer side of the second diffraction region.

    摘要翻译： 光拾取器包括：发射第一波长的光束的第一发射单元; 第二发光单元，发射第二波长的光束; 第三发光单元，发射第三波长的光束; 用于将从第一至第三发射单元发射的光束冷凝到光盘的信号记录面上的物镜; 以及设置在位于所述第一至第三波长的光束的光路上的光学元件或所述物镜的一个面上的衍射单元; 其特征在于，所述衍射单元包括设置在所述最内周边的大致圆形的第一衍射区域，设置在所述第一衍射区域的外侧的环形带状的第二衍射区域和设置在所述第一衍射区域的外侧的环形带状的第三衍射区域 第二衍射区域。

    Illumination device and display device
    10.
    发明授权
    Illumination device and display device 有权
    照明装置和显示装置

    公开(公告)号：US09335558B2

    公开(公告)日：2016-05-10

    申请号：US13543792

    申请日：2012-07-07

    申请人： Toshifumi Yasui ,  Hiroshi Isobe ,  Kazuyuki Takahashi

    发明人： Toshifumi Yasui ,  Hiroshi Isobe ,  Kazuyuki Takahashi

    IPC分类号： G09G5/10 ,  G02B27/48 ,  G03B21/20 ,  G03B33/08 ,  H04N9/31

    CPC分类号： G02B27/48 ,  G03B21/2033 ,  G03B21/208 ,  G03B33/08 ,  H04N9/3129 ,  H04N9/3155

    摘要： An illumination device including a light source section including a laser light source, and allowing a laser light beam emitted from the laser light source to be output intermittently at a predetermined frequency; an optical element through which the laser light beam passes; and a driver section changing a coherency of the laser light beam by driving the optical element at a predetermined drive frequency. Expressions (1) |2×f2−n1×f1|≧20 or (2) |2×f2−n2×f1|≦3, (3) f2≧20 or (4) f2≦3, and (5) |f2−n1×f1|≧20 or (6) |f2−n3×f1|≦3 are satisfied, where f1 denotes the predetermined frequency in Hz, f2 denotes a variation frequency of luminance in illumination light output from the optical element in Hz, the variation frequency being generated by the driving of the optical element, n1 denotes an arbitrary integer of 0 to 10 both inclusive, and n2 and n3 denote respective predetermined integers of 0 to 10 both inclusive.

    摘要翻译： 一种照明装置，包括：包括激光源的光源部，并且使从所述激光光源发射的激光束以预定频率间歇地输出; 激光束通过的光学元件; 以及通过以预定的驱动频率驱动光学元件来改变激光束的一致性的驱动器部分。 表达式（1）| 2×f2-n1×f1 |≥20或（2）| 2×f2-n2×f1 |＆nlE; 3，（3）f2≥20或（4）f2＆nlE; 3和（5） | f2-n1×f1 |≥20或（6）| f2-n3×f1 |＆nlE; 3，其中f1表示以Hz为单位的预定频率，f2表示从光学元件输出的照明光的亮度变化频率 以Hz为单位，通过驱动光学元件产生的变化频率，n1表示0〜10的任意整数，n2和n3表示0〜10的各自的规定的整数。