会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明申请
    • Optical pickup device and optical disc apparatus having the same
    • 光拾取装置和具有该光拾取装置的光盘装置
    • US20070177482A1
    • 2007-08-02
    • US11700076
    • 2007-01-31
    • Yuichi KamiokaTetsuya ShiharaKenji NagashimaMitsuyoshi Sasabe
    • Yuichi KamiokaTetsuya ShiharaKenji NagashimaMitsuyoshi Sasabe
    • G11B7/00
    • G11B7/1369G11B7/0037
    • Optical pickup device equipped with liquid crystal diffraction element is provided with liquid crystal diffraction element control portion, which includes detecting portions for detecting light quantities of 0 order light and 1st order light from signal of photo detector for receiving the 0 order light and 1st order light generated by liquid crystal diffraction element, processing portion for determining light quantity ratio of 0 order light to 1st order light from light quantities obtained by detecting portions and for deciding whether or not difference between light quantity ratio and prescribed light quantity ratio is within predetermined range and for determining correction value of voltage to be applied to transparent electrodes if difference is not within predetermined range, and voltage control portion for controlling the voltage value to be applied to transparent electrodes based on process result of processing portion.
    • 配备有液晶衍射元件的光拾取装置设置有液晶衍射元件控制部,该液晶衍射元件控制部包括用于检测来自光检测器的信号的0级光的光量的检测部和用于接收0级光和1级光的检测部 由液晶衍射元件产生的处理部分,用于根据由检测部分获得的光量确定0阶光与1阶光的光量比的处理部分,以及用于判定光量比和规定光量比之间的差是否在预定范围内,以及 用于根据处理部分的处理结果确定如果差不在预定范围内,则施加到透明电极上的电压的校正值以及用于控制施加到透明电极的电压值的电压控制部分。
    • 14. 发明授权
    • Optical pickup and optical pickup aberration correcting method
    • 光学拾取和光学拾取像差校正方法
    • US07813234B2
    • 2010-10-12
    • US12216307
    • 2008-07-02
    • Yuichi Kamioka
    • Yuichi Kamioka
    • G11B7/00
    • G11B7/13925G11B7/1362G11B7/1376G11B7/1395G11B2007/0006
    • An optical pickup includes: a spherical aberration correcting portion for correcting spherical aberration by adjusting a convergence/divergence state of laser light emitted from a light source; a reflecting portion having: a first surface that chooses whether or not to pass laser light emitted from the spherical aberration correcting portion according to the wavelength of the laser light; and a second surface that reflects laser light that has passed through the first surface; and two objective lenses that are selectively used according to whether laser light reflected from the reflecting portion has been reflected by the first surface or by the second surface so as to condense light reflected from the reflecting portion onto a recording layer of an optical disc. Here, between the spherical aberration correcting portion and the objective lenses, there is disposed an astigmatism correcting portion that is formed such that the amount of correction can be changed.
    • 光拾取器包括:球面像差校正部分,用于通过调节从光源发射的激光的会聚/发散状态来校正球面像差; 反射部分具有:根据激光的波长选择是否使从球面像差校正部发射的激光的通过的第一表面; 以及反射穿过所述第一表面的激光的第二表面; 以及根据从反射部反射的激光是否已经被第一表面或第二表面反射而选择性地使用的两个物镜,以将从反射部反射的光聚光到光盘的记录层上。 这里,在球面像差校正部分和物镜之间设置有像差校正部分,其形成为可以改变校正量。
    • 15. 发明申请
    • Optical pickup and optical pickup aberration correcting method
    • 光学拾取和光学拾取像差校正方法
    • US20090010113A1
    • 2009-01-08
    • US12216307
    • 2008-07-02
    • Yuichi Kamioka
    • Yuichi Kamioka
    • G11B7/00
    • G11B7/13925G11B7/1362G11B7/1376G11B7/1395G11B2007/0006
    • An optical pickup includes: a spherical aberration correcting portion for correcting spherical aberration by adjusting a convergence/divergence state of laser light emitted from a light source; a reflecting portion having: a first surface that chooses whether or not to pass laser light emitted from the spherical aberration correcting portion according to the wavelength of the laser light; and a second surface that reflects laser light that has passed through the first surface; and two objective lenses that are selectively used according to whether laser light reflected from the reflecting portion has been reflected by the first surface or by the second surface so as to condense light reflected from the reflecting portion onto a recording layer of an optical disc. Here, between the spherical aberration correcting portion and the objective lenses, there is disposed an astigmatism correcting portion that is formed such that the amount of correction can be changed.
    • 光拾取器包括:球面像差校正部分,用于通过调节从光源发射的激光的会聚/发散状态来校正球面像差; 反射部分具有:根据激光的波长选择是否使从球面像差校正部发射的激光的通过的第一表面; 以及反射穿过所述第一表面的激光的第二表面; 以及根据从反射部反射的激光是否已经被第一表面或第二表面反射而选择性地使用的两个物镜,以将从反射部反射的光聚光到光盘的记录层上。 这里,在球面像差校正部分和物镜之间设置有像差校正部分,其形成为可以改变校正量。