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    • 1. 发明授权
    • Optical recording and reproducing apparatus having an optical pickup including a liquid crystal correcting element
    • 具有包括液晶校正元件的光学拾取器的光学记录和再现设备
    • US08054732B2
    • 2011-11-08
    • US12294572
    • 2007-03-12
    • Shinichi FujinokiHisao Tanaka
    • Shinichi FujinokiHisao Tanaka
    • G11B7/00
    • G11B7/1267G02F2203/50G11B7/0909G11B7/13925
    • An optical recording and reproducing apparatus which suppresses the generation of a noise component in a servo signal while preventing a deterioration in using efficiency of a light beam is provided. The optical recording and reproducing apparatus has an optical pickup including a liquid crystal correcting element, a liquid crystal element control unit, a memory, and an operation mode control unit. The memory stores a plurality of correction data sets respectively corresponding to a plurality of refractive index distribution to be formed by the liquid crystal correcting element. The liquid crystal element control unit selectively reads out the correction data set corresponding to the operation mode designated by the operation mode control unit from the memory and supplies a driving voltage according to the read-out correction data set to the liquid crystal correcting element.
    • 提供一种光学记录和再现装置,其抑制伺服信号中的噪声分量的产生,同时防止光束的使用效率的劣化。 光学记录和再现装置具有包括液晶校正元件,液晶元件控制单元,存储器和操作模式控制单元的光学拾取器。 存储器存储分别对应于由液晶校正元件形成的多个折射率分布的多个校正数据集。 液晶元件控制单元从存储器中选择与由操作模式控制单元指定的操作模式对应的校正数据集,并将读出的校正数据组的驱动电压提供给液晶校正元件。
    • 2. 发明申请
    • OPTICAL RECORDING AND REPRODUCING APPARATUS
    • 光学记录和再现设备
    • US20090115921A1
    • 2009-05-07
    • US12294572
    • 2007-03-12
    • Shinichi FujinokiHisao Tanaka
    • Shinichi FujinokiHisao Tanaka
    • G02F1/1333
    • G11B7/1267G02F2203/50G11B7/0909G11B7/13925
    • An optical recording and reproducing apparatus which suppresses the generation of a noise component in a servo signal while preventing a deterioration in using efficiency of a light beam is provided. The optical recording and reproducing apparatus has an optical pickup including a liquid crystal correcting element, a liquid crystal element control unit, a memory, and an operation mode control unit. The memory stores a plurality of correction data sets respectively corresponding to a plurality of refractive index distribution to be formed by the liquid crystal correcting element. The liquid crystal element control unit selectively reads out the correction data set corresponding to the operation mode designated by the operation mode control unit from the memory and supplies a driving voltage according to the read-out correction data set to the liquid crystal correcting element.
    • 提供一种光学记录和再现装置,其抑制伺服信号中的噪声分量的产生,同时防止光束的使用效率的劣化。 光学记录和再现装置具有包括液晶校正元件,液晶元件控制单元,存储器和操作模式控制单元的光学拾取器。 存储器存储分别对应于由液晶校正元件形成的多个折射率分布的多个校正数据集。 液晶元件控制单元从存储器中选择与由操作模式控制单元指定的操作模式对应的校正数据集,并将读出的校正数据组的驱动电压提供给液晶校正元件。
    • 8. 发明授权
    • Aberration correction device, aberration correction method and optical pickup
    • 畸变校正装置,像差校正方法和光学拾取器
    • US08018814B2
    • 2011-09-13
    • US11587935
    • 2005-04-14
    • Masakazu OgasawaraShinichi Fujinoki
    • Masakazu OgasawaraShinichi Fujinoki
    • G11B7/135G11B7/00
    • G02F1/061G02F1/134309G02F2203/18G11B7/0948G11B7/0956G11B7/1369G11B7/13927
    • The present invention is to provide an improved aberration correction device formed by inserting an electro-optic panel such as a liquid crystal panel in an image-formation optical system to correct aberrations in the image-formation optical system, characterized in that such a correction device is capable of correcting three or more kinds of aberrations using only one electro-optic panel.Divided areas concerning coma aberration correction and divided areas concerning astigmatism correction are formed in one of the transparent electrodes of the electro-optic panel, while the rest of divided areas concerning coma aberration correction and divided areas concerning spherical aberration correction are formed in the other of the transparent electrodes. In this way, it is possible to form divided areas divided into electrode patterns suitable for correcting various aberrations, simplify as much as possible the electrode structure of the transparent electrodes consisting of the divided areas, thereby simplifying a control of voltages to be applied to the divided areas.
    • 本发明提供一种改进的像差校正装置,其通过将图像形成光学系统中的诸如液晶面板的电光面板插入以校正图像形成光学系统中的像差而形成,其特征在于,这种校正装置 能够仅使用一个电光面板来校正三种或更多种像差。 在电光面板的一个透明电极中形成有关于彗形像差校正的分割区域和散光校正的分割区域,而关于彗差校正的其余分割区域和关于球面像差校正的分割区域形成在另一个 透明电极。 以这种方式,可以形成分为适合于校正各种像差的电极图案的划分区域,尽可能地简化由分割区域构成的透明电极的电极结构,从而简化对施加到该区域的电压的控制 分区。
    • 10. 发明申请
    • Aberration Correction Device, Aberration Correction Method And Optical Pickup
    • 畸变校正装置,畸变校正方法和光学拾取器
    • US20080055713A1
    • 2008-03-06
    • US11587935
    • 2005-04-14
    • Masakazu OgasawaraShinichi Fujinoki
    • Masakazu OgasawaraShinichi Fujinoki
    • G02F1/29
    • G02F1/061G02F1/134309G02F2203/18G11B7/0948G11B7/0956G11B7/1369G11B7/13927
    • The present invention is to provide an improved aberration correction device formed by inserting an electro-optic panel such as a liquid crystal panel in an image-formation optical system to correct aberrations in the image-formation optical system, characterized in that such a correction device is capable of correcting three or more kinds of aberrations using only one electro-optic panel. Divided areas concerning coma aberration correction and divided areas concerning astigmatism correction are formed in one of the transparent electrodes of the electro-optic panel, while the rest of divided areas concerning coma aberration correction and divided areas concerning spherical aberration correction are formed in the other of the transparent electrodes. In this way, it is possible to form divided areas divided into electrode patterns suitable for correcting various aberrations, simplify as much as possible the electrode structure of the transparent electrodes consisting of the divided areas, thereby simplifying a control of voltages to be applied to the divided areas.
    • 本发明提供一种改进的像差校正装置,其通过将图像形成光学系统中的诸如液晶面板的电光面板插入以校正图像形成光学系统中的像差而形成,其特征在于,这种校正装置 能够仅使用一个电光面板来校正三种或更多种像差。 在电光面板的一个透明电极中形成有关于彗形像差校正的分割区域和散光校正的分割区域,而关于彗差校正的其余分割区域和关于球面像差校正的分割区域形成在另一个 透明电极。 以这种方式,可以形成分为适合于校正各种像差的电极图案的划分区域,尽可能地简化由分割区域构成的透明电极的电极结构,从而简化对施加到该区域的电压的控制 分区。