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    • 1. 发明授权
    • Compatible optical recording medium
    • 兼容光学记录介质
    • US08213289B2
    • 2012-07-03
    • US12311671
    • 2007-09-24
    • Joachim KnittelHartmut RichterAlan Bruce Hamersley
    • Joachim KnittelHartmut RichterAlan Bruce Hamersley
    • G11B7/00
    • G11B7/24079G11B7/1374G11B2007/24308G11B2007/24314
    • The optical recording medium has a recording layer sensitive for recording at a first wavelength and sensitive for reading at a second wavelength, the recording layer having a groove structure, wherein at the first wavelength the groove structure has a diffraction efficiency into a first diffraction order sufficiently large to generate a push-pull signal, and at the second wavelength it has a diffraction efficiency into a first diffraction order close to zero. The optical pickup for recording on an optical recording medium intended to be read with a second wavelength and a second numerical aperture is characterized in that it has a light source for generating a light beam at a first wavelength and a numerical aperture given by the second numerical aperture multiplied with a ration of the first wavelength and the second wavelength.
    • 光记录介质具有对第一波长进行记录敏感并对第二波长进行读取敏感的记录层,记录层具有凹槽结构,其中在第一波长处,凹槽结构的衍射效率充分地成为第一衍射级 大以产生推挽信号,并且在第二波长处,它具有接近零的第一衍射级的衍射效率。 用于在旨在用第二波长和第二数值孔径读取的光记录介质上记录的光学拾取器的特征在于,其具有用于产生第一波长的光束和由第二数值给出的数值孔径的光源 孔径乘以第一波长和第二波长的比例。
    • 3. 发明申请
    • Compact pickup for micro optical drive
    • 微型光驱的紧凑型拾音器
    • US20090129244A1
    • 2009-05-21
    • US11920818
    • 2006-05-03
    • Joachim KnittelHartmut Richter
    • Joachim KnittelHartmut Richter
    • G11B7/135
    • G11B7/121G11B7/08576G11B7/0932G11B7/124G11B7/1362
    • The invention relates to a compact optical pickup for a micro optical drive, and to a micro optical drive using this compact optical pickup. According to the invention a pickup for optical recording media includes a light source for generating a light beam for reading from and/or writing to an optical recording medium, a flexible arm serving as a focus actuator, an objective lens situated on the flexible arm for focusing the light beam onto the optical recording medium, an optical bench for directing the light beam towards the optical recording medium, one or more detectors for detecting the light beam reflected by the optical recording medium, and a mirror, which is arranged inclined with respect to a transparent block of the optical bench, for directing the light beam reflected by the optical recording medium towards a first detector.
    • 本发明涉及一种用于微型光驱的紧凑型光学拾取器以及使用该紧凑型光学拾取器的微型光学驱动器。 根据本发明,用于光学记录介质的拾取器包括用于产生用于从光学记录介质读取和/或写入光学记录介质的光束的光源,用作聚焦致动器的柔性臂,位于柔性臂上的物镜 将光束聚焦到光学记录介质上,用于将光束引向光学记录介质的光学台,用于检测由光学记录介质反射的光束的一个或多个检测器,以及相对于 到光学台的透明块,用于将由光学记录介质反射的光束引向第一检测器。
    • 4. 发明申请
    • Apparatus for reading from and/or writing to optical recording media
    • 用于从光学记录介质读取和/或写入光学记录介质的设备
    • US20060256693A1
    • 2006-11-16
    • US10541761
    • 2003-12-22
    • Joachim KnittelHartmut Richter
    • Joachim KnittelHartmut Richter
    • G11B7/00
    • G11B7/1381G11B7/1353G11B7/1369G11B7/13925G11B2007/0013
    • When an optical recording medium having a plurality of data layers is being read from and/or written to, the input beam experiences an aberration, inter alia in the top layers of the data layers. In order, nevertheless, to achieve a high data density, a device for correcting the spherical aberration is located in the beam path of the input beam. In the case of the use of an optical diode in which the input beam and the reflected beam have directions of polarization perpendicular to one another, such a device is expensive to implement and associated with a reduced optical efficiency. It is an object of the invention to propose an apparatus for reading from and/or writing to optical recording media, in the case of which a high optical efficiency and balancing of the spherical aberration are achieved with low outlay. For this purpose, the device for correcting the spherical aberration is set up such that the reflected beam traverses it uninfluenced, whereby means for correcting the imaging of the reflected beam onto at least one detector unit are provided in the further beam path.
    • 当具有多个数据层的光学记录介质正被读取和/或写入时,输入光束尤其在数据层的顶层中经历像差。 然而,为了实现高数据密度,用于校正球面像差的装置位于输入光束的光束路径中。 在使用其中输入光束和反射光束具有彼此垂直的偏振方向的光二极管的情况下,这种器件实现昂贵并且与降低的光学效率相关联。 本发明的一个目的是提出一种用于从光学记录介质读取和/或写入光学记录介质的装置,在这种设备中,通过低成本实现高的光学效率和球面像差的平衡。 为此,用于校正球面像差的装置被设置成使得反射光束不受影响,从而在另外的光束路径中提供用于将反射光束成像校正到至少一个检测器单元上的装置。
    • 7. 发明授权
    • Compact pickup for micro optical drive
    • 微型光驱的紧凑型拾音器
    • US07852714B2
    • 2010-12-14
    • US11920818
    • 2006-05-03
    • Joachim KnittelHartmut Richter
    • Joachim KnittelHartmut Richter
    • G11B7/00
    • G11B7/121G11B7/08576G11B7/0932G11B7/124G11B7/1362
    • The invention relates to a compact optical pickup for a micro optical drive, and to a micro optical drive using this compact optical pickup. According to the invention a pickup for optical recording media includes a light source for generating a light beam for reading from and/or writing to an optical recording medium, a flexible arm serving as a focus actuator, an objective lens situated on the flexible arm for focusing the light beam onto the optical recording medium, an optical bench for directing the light beam towards the optical recording medium one or more detectors for detecting the light beam reflected by the optical recording medium, and a mirror, which is arranged inclined with respect to a transparent block of the optical bench, for directing the light beam reflected by the optical recording medium towards a first detector.
    • 本发明涉及一种用于微型光驱的紧凑型光学拾取器以及使用该紧凑型光学拾取器的微型光学驱动器。 根据本发明,用于光记录介质的拾取器包括用于产生用于从光记录介质读取和/或写入光记录介质的光束的光源,用作聚焦致动器的柔性臂,位于柔性臂上的物镜 将光束聚焦到光学记录介质上,用于将光束引导到光学记录介质的一个或多个检测器,用于检测由光学记录介质反射的光束的光学台,以及相对于 光学台的透明块,用于将由光学记录介质反射的光束引向第一检测器。
    • 9. 发明授权
    • Apparatus for reading from and/or writing to optical recording media
    • 用于从光学记录介质读取和/或写入光学记录介质的设备
    • US07385905B2
    • 2008-06-10
    • US10541761
    • 2003-12-22
    • Joachim KnittelHartmut Richter
    • Joachim KnittelHartmut Richter
    • G11B7/00
    • G11B7/1381G11B7/1353G11B7/1369G11B7/13925G11B2007/0013
    • When an optical recording medium having a plurality of data layers is being read from and/or written to, the input beam experiences an aberration, inter alia in the top layers of the data layers. In order, nevertheless, to achieve a high data density, a device for correcting the spherical aberration is located in the beam path of the input beam. In the case of the use of an optical diode in which the input beam and the reflected beam have directions of polarization perpendicular to one another, such a device is expensive to implement and associated with a reduced optical efficiency. It is an object of the invention to propose an apparatus for reading from and/or writing to optical recording media, in the case of which a high optical efficiency and balancing of the spherical aberration are achieved with low outlay. For this purpose, the device for correcting the spherical aberration is set up such that the reflected beam traverses it uninfluenced, whereby means for correcting the imaging of the reflected beam onto at least one detector unit are provided in the further beam path.
    • 当具有多个数据层的光学记录介质正被读取和/或写入时,输入光束尤其在数据层的顶层中经历像差。 然而,为了实现高数据密度,用于校正球面像差的装置位于输入光束的光束路径中。 在使用其中输入光束和反射光束具有彼此垂直的偏振方向的光二极管的情况下,这种器件实现昂贵并且与降低的光学效率相关联。 本发明的一个目的是提出一种用于从光学记录介质读取和/或写入光学记录介质的装置,在这种设备中,通过低成本实现高的光学效率和球面像差的平衡。 为此,用于校正球面像差的装置被设置成使得反射光束不受影响,从而在另外的光束路径中提供用于将反射光束成像校正到至少一个检测器单元上的装置。
    • 10. 发明申请
    • Compatible optical recording medium
    • 兼容光学记录介质
    • US20100002559A1
    • 2010-01-07
    • US12311671
    • 2007-09-24
    • Joachim KnittelHartmut RichterAlan Bruce Hamersley
    • Joachim KnittelHartmut RichterAlan Bruce Hamersley
    • G11B7/135G11B7/26G11B7/00
    • G11B7/24079G11B7/1374G11B2007/24308G11B2007/24314
    • The optical recording medium has a recording layer sensitive for recording at a first wavelength and sensitive for reading at a second wavelength, the recording layer having a groove structure, wherein at the first wavelength the groove structure has a diffraction efficiency into a first diffraction order sufficiently large to generate a push-pull signal, and at the second wavelength it has a diffraction efficiency into a first diffraciton order close to zero. The optical pickup for recording on an optical recording medium intended to be read with a second wavelength and a second numerical aperture is characterized in that it has a light source for generating a light beam at a first wavelength and a numerical aperture given by the second numerical aperture multiplied with a ration of the first wavelength and the second wavelength.
    • 光记录介质具有对第一波长进行记录敏感并对第二波长进行读取敏感的记录层,记录层具有凹槽结构,其中在第一波长处,凹槽结构的衍射效率充分地成为第一衍射级 大以产生推挽信号,并且在第二波长处,它具有接近零的第一差分级的衍射效率。 用于在旨在用第二波长和第二数值孔径读取的光记录介质上记录的光学拾取器的特征在于,其具有用于产生第一波长的光束和由第二数值给出的数值孔径的光源 孔径乘以第一波长和第二波长的比例。