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1. 发明授权

US06532202B1 Optical element, optical head and optical recording reproducing apparatus 有权
标题翻译：光学元件，光学头和光学记录再生装置
公开(公告)号：US06532202B1
公开(公告)日：2003-03-11
申请号：US09611575
申请日：2000-07-07
申请人： Hidenori Wada , Shin-ichi Kadowaki , Hiroaki Yamamoto , Tetsuo Saimi , Daisuke Ogata , Naoya Hotta , Sadao Mizuno
发明人： Hidenori Wada , Shin-ichi Kadowaki , Hiroaki Yamamoto , Tetsuo Saimi , Daisuke Ogata , Naoya Hotta , Sadao Mizuno
IPC分类号： G11B700
CPC分类号： G11B7/13925 , G02F1/133502 , G02F1/134309 , G02F2203/18 , G11B7/0956 , G11B7/1369 , G11B7/13927
摘要： An optical element has a phase change layer for changing the phase of light passing therethrough; a plurality of aberration correcting electrodes, arranged on one side of said phase change layer, for correcting optical aberrations, each of said aberration correcting electrodes being split into a plurality of regions; an insulating film interposed between said aberration correcting electrodes; and a specific electrode arranged on the other side of said phase change layer, and wherein: said aberration correcting electrodes, at least other than the outermost aberration correcting electrode as viewed from said phase change layer, have openings formed in prescribed positions, and each of said aberration correcting electrodes, other than the innermost aberration correcting electrode, faces said phase change layer through said openings formed in other aberration correcting electrodes.
摘要翻译：光学元件具有用于改变通过其中的光的相位的相变层; 多个像差校正电极，布置在所述相变层的一侧，用于校正光学像差，每个所述像差校正电极被分成多个区域; 介于所述像差校正电极之间的绝缘膜; 以及布置在所述相变层的另一侧的特定电极，并且其中：所述像差校正电极至少在从所述相变层观察的最外侧像差修正电极之外具有在规定位置形成的开口，除最内像素修正电极以外的所述像差校正电极通过形成在其它像差校正电极中的所述开口面向所述相变层。

2. 发明授权

US06661415B1 Liquid crystal driver and optical head for tilt correction 失效
标题翻译：液晶驱动器和光学头用于倾斜校正
公开(公告)号：US06661415B1
公开(公告)日：2003-12-09
申请号：US09598972
申请日：2000-06-22
申请人： Katsuhiko Yasuda , Hidenori Wada , Daisuke Ogata , Kanji Wakabayashi , Naoya Hotta , Yoshihiro Ikawa , Yoshihiro Kanda , Masahiro Inata
发明人： Katsuhiko Yasuda , Hidenori Wada , Daisuke Ogata , Kanji Wakabayashi , Naoya Hotta , Yoshihiro Ikawa , Yoshihiro Kanda , Masahiro Inata
IPC分类号： G09G500
CPC分类号： G11B7/0956 , G09G3/3696 , G09G2320/0247
摘要： Tilt which is inclination of a normal of optical disk relative to optical axis of optical head is corrected with a liquid crystal element. In a driver for the liquid crystal element, a periodic waveform generator generates periodic waveform and an inverting element inverts the periodic waveform. The periodic waveform and the inverted waveform are connected to two ends of a potential divider which provides partial voltages. The periodic waveform is connected to a common electrode of the liquid crystal element, and the partial voltages of the potential divider are connected to electrodes opposing the common electrode. A structure of a driver circuit for each direction is simple. Tilt in a plurality of directions can be performed independently of each other. Spherical aberration is also corrected. When the liquid crystal element is mounted to a fixed component, deterioration due to jitters is reduced.
摘要翻译：用液晶元件校正光盘相对于光头的光轴的倾斜度的倾斜。在液晶元件的驱动器中，周期性波形发生器产生周期性波形，并且反相元件反转周期性波形。周期波形和反相波形连接到提供部分电压的分压器的两端。周期波形连接到液晶元件的公共电极，分压器的分压连接到与公共电极相对的电极。每个方向的驱动电路结构简单。可以彼此独立地执行多个方向的倾斜。也校正了球面像差。当液晶元件安装到固定部件时，由于抖动引起的劣化降低。

3. 发明授权

US07031247B2 Liquid crystal driver and optical head for tilt correction 有权
公开(公告)号：US07031247B2
公开(公告)日：2006-04-18
申请号：US10668258
申请日：2003-09-24
申请人： Katsuhiko Yasuda , Hidenori Wada , Daisuke Ogata , Kanji Wakabayashi , Naoya Hotta
发明人： Katsuhiko Yasuda , Hidenori Wada , Daisuke Ogata , Kanji Wakabayashi , Naoya Hotta
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G09G3/3696 , G09G2320/0247
摘要： Tilt which is inclination of a normal of optical disk relative to optical axis of optical head is corrected with a liquid crystal element. In a driver for the liquid crystal element, a periodic waveform generator generates periodic waveform and an inverting element inverts the periodic waveform. The periodic waveform and the inverted waveform are connected to two ends of a potential divider which provides partial voltages. The periodic waveform is connected to a common electrode of the liquid crystal element, and the partial voltages of the potential divider are connected to electrodes opposing the common electrode. A structure of a driver circuit for each direction is simple. Tilt in a plurality of directions can be performed independently of each other. Spherical aberration is also corrected. When the liquid crystal element is mounted to a fixed component, deterioration due to jitters is reduced.

4. 发明申请

US20050036429A1 Liquid crystal driver and optical head for tilt correction 有权
标题翻译：液晶驱动器和光学头用于倾斜校正
公开(公告)号：US20050036429A1
公开(公告)日：2005-02-17
申请号：US10668258
申请日：2003-09-24
申请人： Katsuhiko Yasuda , Hidenori Wada , Daisuke Ogata , Kanji Wakabayashi , Naoya Hotta
发明人： Katsuhiko Yasuda , Hidenori Wada , Daisuke Ogata , Kanji Wakabayashi , Naoya Hotta
IPC分类号： G09G3/36 , G11B7/095 , G11B7/00
CPC分类号： G11B7/0956 , G09G3/3696 , G09G2320/0247
摘要： Tilt which is inclination of a normal of optical disk relative to optical axis of optical head is corrected with a liquid crystal element. In a driver for the liquid crystal element, a periodic waveform generator generates periodic waveform and an inverting element inverts the periodic waveform. The periodic waveform and the inverted waveform are connected to two ends of a potential divider which provides partial voltages. The periodic waveform is connected to a common electrode of the liquid crystal element, and the partial voltages of the potential divider are connected to electrodes opposing the common electrode. A structure of a driver circuit for each direction is simple. Tilt in a plurality of directions can be performed independently of each other. Spherical aberration is also corrected. When the liquid crystal element is mounted to a fixed component, deterioration due to jitters is reduced.
摘要翻译：用液晶元件校正光盘相对于光头的光轴的倾斜度的倾斜。在液晶元件的驱动器中，周期性波形发生器产生周期性波形，并且反相元件反转周期性波形。周期波形和反相波形连接到提供部分电压的分压器的两端。周期波形连接到液晶元件的公共电极，分压器的分压连接到与公共电极相对的电极。每个方向的驱动电路结构简单。可以彼此独立地执行多个方向的倾斜。也校正了球面像差。当液晶元件安装到固定部件时，由于抖动引起的劣化降低。

5. 发明申请

US20120113781A1 OPTICAL DISK APPARATUS 审中-公开
标题翻译：光盘设备
公开(公告)号：US20120113781A1
公开(公告)日：2012-05-10
申请号：US13384023
申请日：2011-02-28
申请人： Takamitsu Watanabe , Naoya Hotta
发明人： Takamitsu Watanabe , Naoya Hotta
IPC分类号： G11B27/36 , G11B7/1374
CPC分类号： G11B7/08511 , G11B19/127
摘要： An optical disk apparatus according to the present invention includes: a drive selector 28 that makes a switch between a setting for sending a drive signal generated by a focus drive generation section 25 to a focus drive section 29, and a setting for sending a drive signal generated by a focus filter 27 to the focus drive section 29; and a lock-in timing detection section 21 that, upon a light amount signal detected by a light amount signal detection section exceeding a predetermined light amount level, determines that an optical spot reaches a vicinity of any of recording layers, and sends to the drive selector 28 a focus lock-in timing instruction for switching to the setting for sending the drive signal generated by the focus filter 27 to the focus drive section 29. Such configuration provides an optical disk apparatus allowing a stable focus lock in operation to be performed without using a layer determination signal when locking a focus into a recording layer of an optical disk.
摘要翻译：根据本发明的光盘装置包括：驱动选择器28，其在用于将聚焦驱动生成部25生成的驱动信号发送到聚焦驱动部29的设定之间进行切换，以及用于发送驱动信号的设定由聚焦滤色器27产生到聚焦驱动部分29; 以及锁定定时检测部21，其在由超过预定光量水平的光量信号检测部检测到的光量信号时，判定光点到达任何记录层的附近，并发送到驱动器选择器28用于切换到用于将由聚焦滤光器27产生的驱动信号发送到聚焦驱动部分29的设置的聚焦锁定定时指令。这种配置提供了允许在操作中稳定的聚焦锁定的光盘装置而不进行当将聚焦锁定到光盘的记录层中时，使用层确定信号。

6. 发明授权

US07508742B2 Optical pick-up, optical disk apparatus and information processing apparatus 有权
标题翻译：光学拾取器，光盘装置和信息处理装置
公开(公告)号：US07508742B2
公开(公告)日：2009-03-24
申请号：US10902680
申请日：2004-07-28
申请人： Yoshiaki Komma , Eishin Mori , Naoya Hotta
发明人： Yoshiaki Komma , Eishin Mori , Naoya Hotta
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0901 , G11B7/0903 , G11B7/0906 , G11B7/0912 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B19/125 , G11B31/00 , G11B2007/0006
摘要： An optical pick-up capable of reproducing information excellently on both CD and DVD, which are significantly different in terms of three kinds of factors, a base material thickness, a wavelength of a light source, and NA, and detecting TE signals by three kinds of methods, that is, the phase difference method, the PP method, and the 3-beam method, which are necessary to record and reproduce information. The optical pick-up is formed by integrating laser light sources having two kinds of wavelengths (λ1, λ2) for detecting TE signals; photodetectors, and hologram for generating the diffracted light for detecting signals. The distance d1 between the center of the photo detecting portion PD0 and the light emitting spot of the first semiconductor laser light source and a distance d2 between the center of the photo detecting portion PD0 and the light emitting spot of the second semiconductor laser light source substantially satisfy the following relationship: λ1/λ2=d1/d2.
摘要翻译：一种能够在CD和DVD上再现信息的光拾取器，其在三种因素，基材厚度，光源的波长和NA方面都有显着差异，并且检测三种TE信号的方法，即记录和再现信息所必需的相位差方法，PP方法和3束方法。通过对具有两种波长的激光光源（λ1，λ2）进行积分来检测TE信号，形成光学拾取器; 光电检测器和全息图，用于产生用于检测信号的衍射光。光检测部分PD0的中心与第一半导体激光光源的发光点之间的距离d1和光检测部分PD0的中心与第二半导体激光光源的发光点之间的距离d2基本上满足以下关系：<？in-line-formula description =“In-line Formulas”end =“lead”？> lambda1 / lambda2 = d1 / d2。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

7. 发明授权

US06928035B2 Optical pick-up, optical disk apparatus and information processing apparatus 有权
标题翻译：光学拾取器，光盘装置和信息处理装置
公开(公告)号：US06928035B2
公开(公告)日：2005-08-09
申请号：US09898781
申请日：2001-07-03
申请人： Yoshiaki Komma , Eishin Mori , Naoya Hotta
发明人： Yoshiaki Komma , Eishin Mori , Naoya Hotta
IPC分类号： G11B7/00 , G11B7/09 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/135 , G11B19/12 , G11B31/00
CPC分类号： G11B7/1353 , G11B7/0901 , G11B7/0903 , G11B7/0906 , G11B7/0912 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B19/125 , G11B31/00 , G11B2007/0006
摘要： An optical pick-up capable of reproducing information excellently on both CD and DVD, which are significantly different in terms of three kinds of factors, a base material thickness, a wavelength of a light source, and NA, and detecting TE signals by three kinds of methods, that is, the phase difference method, the PP method, and the 3-beam method, which are necessary to record and reproduce information. The optical pick-up is formed by integrating laser light sources having two kinds of wavelengths (λ1, λ2) for detecting TE signals; photodetectors, and hologram for generating the diffracted light for detecting signals. The distance d1 between the center of the photo detecting portion PD0 and the light emitting spot of the first semiconductor laser light source and a distance d2 between the center of the photo detecting portion PD0 and the light emitting spot of the second semiconductor laser light source substantially satisfy the following relationship: λ1/λ2=d1/d2.
摘要翻译：一种能够在CD和DVD上再现信息的光拾取器，其在三种因素，基材厚度，光源的波长和NA方面都有显着差异，并且检测三种TE信号的方法，即记录和再现信息所必需的相位差方法，PP方法和3束方法。通过对具有两种波长（λ1，λ2）的激光光源进行积分来检测TE信号来形成光学拾取器; 光电检测器和全息图，用于产生用于检测信号的衍射光。光检测部分PD0的中心与第一半导体激光光源的发光点之间的距离d 1和光检测部分PD 0的中心与第二半导体的发光光点之间的距离d 2 激光光源基本上满足以下关系：<？in-line-formula description =“In-line formula”end =“lead”？> lambda 1 /λ2= d 1 / d 2. <？in-line-formula description =“内联公式”end =“tail”？>

8. 发明申请

US20050002292A1 Optical pick-up, optical disk apparatus and information processing apparatus 有权
标题翻译：光学拾取器，光盘装置和信息处理装置
公开(公告)号：US20050002292A1
公开(公告)日：2005-01-06
申请号：US10902680
申请日：2004-07-28
申请人： Yoshiaki Komma , Eishin Mori , Naoya Hotta
发明人： Yoshiaki Komma , Eishin Mori , Naoya Hotta
IPC分类号： G11B7/00 , G11B7/09 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/135 , G11B19/12 , G11B31/00
CPC分类号： G11B7/1353 , G11B7/0901 , G11B7/0903 , G11B7/0906 , G11B7/0912 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B19/125 , G11B31/00 , G11B2007/0006
摘要： An optical pick-up capable of reproducing information excellently on both CD and DVD, which are significantly different in terms of three kinds of factors, a base material thickness, a wavelength of a light source, and NA, and detecting TE signals by three kinds of methods, that is, the phase difference method, the PP method, and the 3-beam method, which are necessary to record and reproduce information. The optical pick-up is formed by integrating laser light sources having two kinds of wavelengths (λ1, λ2) for detecting TE signals; photodetectors, and hologram for generating the diffracted light for detecting signals. The distance d1 between the center of the photo detecting portion PD0 and the light emitting spot of the first semiconductor laser light source and a distance d2 between the center of the photo detecting portion PD0 and the light emitting spot of the second semiconductor laser light source substantially satisfy the following relationship: λ1/λ2=d1/d2.
摘要翻译：一种能够在CD和DVD上再现信息的光拾取器，其在三种因素，基材厚度，光源的波长和NA方面都有显着差异，并且检测三种TE信号的方法，即记录和再现信息所必需的相位差方法，PP方法和3束方法。通过对具有两种波长的激光光源（λ1，λ2）进行积分来检测TE信号，形成光学拾取器; 光电检测器和全息图，用于产生用于检测信号的衍射光。光检测部分PD0的中心与第一半导体激光光源的发光点之间的距离d1和光检测部分PD0的中心与第二半导体激光光源的发光点之间的距离d2基本上满足以下关系：lambda1 / lambda2 = d1 / d2。

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