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1. 发明授权

US09373350B2 Optical medium reproducing apparatus and optical medium reproducing method 有权
标题翻译：光学介质再现装置和光学介质再现方法
公开(公告)号：US09373350B2
公开(公告)日：2016-06-21
申请号：US14278735
申请日：2014-05-15
申请人： Sony Corporation
发明人： Kenji Yamamoto , Takashi Nakao , Kimihiro Saito
IPC分类号： G11B20/10 , G11B7/005 , G11B7/1395 , G11B7/1398 , G11B7/135 , G11B7/1374 , G11B7/1376 , G11B7/1369 , G11B7/1381
CPC分类号： G11B7/005 , G11B7/135 , G11B7/1369 , G11B7/1374 , G11B7/1376 , G11B7/1381 , G11B7/1395 , G11B7/1398 , G11B20/10009
摘要： An optical medium reproducing apparatus that optically reproduces an optical medium on which a plurality of tracks is formed in which a beam returning from the optical medium is divided into a first region of an outside portion and a second region of an inside region, according to the shape of the pupil of an object lens, and crosstalk between the tracks is reduced by using a first detection signal of the first region and a second detection signal of the second region.
摘要翻译：一种光学介质再现装置，其光学地再现其上形成有多个光道的光学介质，其中从光学介质返回的光束被划分为外部的第一区域和内部区域的第二区域，根据通过使用第一区域的第一检测信号和第二区域的第二检测信号来减小物镜的光瞳形状和轨道之间的串扰。

2. 发明授权

US09454987B2 Optical information processing apparatus and optical information processing method, and adjustment device, adjustment method, and adjustment program for optical information processing apparatus 有权
标题翻译：光信息处理装置和光信息处理方法以及光信息处理装置的调整装置，调整方法和调整程序
公开(公告)号：US09454987B2
公开(公告)日：2016-09-27
申请号：US14374866
申请日：2013-02-21
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Tomo Kishigami , Nobuo Takeshita
IPC分类号： G11B7/00 , G11B7/1392 , G11B11/105 , G11B7/09 , G11B7/1398 , G11B7/1372 , G11B7/1378
CPC分类号： G11B7/13925 , G11B7/0908 , G11B7/0925 , G11B7/094 , G11B7/0943 , G11B7/0945 , G11B7/1378 , G11B7/1398 , G11B11/10576 , G11B2007/13727
摘要： An optical information processing apparatus includes: a unit that radiates light onto an optical disc and detects the reflected light to output a reproduced signal; a unit that corrects spherical aberration of the light; a unit that adjusts a focus position of the light based on a focus adjustment value; and an adjustment unit that measures a characteristic of the reproduced signal at each of at least three positions on each of at least three straight lines on a plane with coordinate axes representing an amount of spherical aberration correction and focus adjustment value, obtains, from the measurements, as estimated positions, at least five positions on the plane at which the characteristic has substantially the same value, performs an ellipse approximation on the estimated positions, obtains a center of the ellipse, and determines the amount of spherical aberration correction and focus adjustment value based on the center of the ellipse.
摘要翻译：光信息处理设备包括：将光辐射到光盘上并检测反射光以输出再现信号的单元; 校正光的球面像差的单元; 基于焦点调整值来调整光的聚焦位置的单元; 以及调整单元，其在具有表示球面像差校正和焦点调整值的坐标轴的平面上的至少三条直线中的至少三个位置中的至少三个位置的每一个处测量再现信号的特性，作为估计位置，在特征具有基本相同值的平面上的至少五个位置对估计位置执行椭圆近似，获得椭圆的中心，并且确定球面像差校正量和焦点调整值基于椭圆的中心。

3. 发明申请

US20120057441A1 SPHERICAL ABERRATION CORRECTION APPROPRIATE POSITION SEARCH APPARATUS, AND SPHERICAL ABERRATION CORRECTION APPROPRIATE POSITION SEARCH METHOD 有权
标题翻译：球形异常校正适当的位置搜索装置和球形异常校正适当的位置搜索方法
公开(公告)号：US20120057441A1
公开(公告)日：2012-03-08
申请号：US13297800
申请日：2011-11-16
申请人： Takahiro YAMAGUCHI
发明人： Takahiro YAMAGUCHI
IPC分类号： G11B7/1398
CPC分类号： G11B7/0945 , G11B7/0908 , G11B7/13925
摘要： A focus error amplitude obtaining device is configured to obtain amplitudes of a focus error signal. An error amplitude difference calculation device is configured to calculate an error amplitude difference which is a difference between the amplitudes of the focus error signal obtained at two different positions in a moving range of a spherical aberration correction device. An appropriate position search control device is in charge of overall control of structural elements; spherical aberration correction device movement control device, focus error amplitude obtaining device, and error amplitude difference calculation device. The appropriate position search control device decides an appropriate position of the spherical aberration correction device based on the error amplitude difference.
摘要翻译：聚焦误差幅度获取装置被配置为获得聚焦误差信号的幅度。误差幅度差计算装置被配置为计算在球面像差校正装置的移动范围中在两个不同位置处获得的聚焦误差信号的幅度之差的误差幅度差。适当的位置搜索控制装置负责结构元件的整体控制; 球面像差校正装置移动控制装置，聚焦误差振幅获取装置和误差幅度差计算装置。适当的位置搜索控制装置基于误差幅度差来决定球面像差校正装置的适当位置。

4. 发明授权

US6108138A Optical beam shaper, and radiation source unit and scanning device including said beam shaper 失效
标题翻译：光束整形器和辐射源单元以及包括所述光束整形器的扫描装置
公开(公告)号：US6108138A
公开(公告)日：2000-08-22
申请号：US488312
申请日：1995-06-07
申请人： Willem G. Ophey , Josephus J. M. Braat
发明人： Willem G. Ophey , Josephus J. M. Braat
IPC分类号： G02B3/06 , G02B27/09 , G02B27/10 , G11B7/1353 , G11B7/1398 , H01S3/00 , H01S5/00 , H01S5/022 , G11B7/00
CPC分类号： G02B3/06 , G02B19/0014 , G02B19/0052 , G02B27/09 , G02B27/0911 , G02B27/0944 , G02B27/0966 , G02B27/108 , G02B27/1093 , G11B7/1353 , G11B7/1398 , H01S5/02288
摘要： An optical beam shaper (10) for converting a radiation beam (5, 6, 7, 8) having an elliptical cross-section into a beam (9) having a more circular cross-section is described. This element (10) has a cylindrical entrance surface (12) and a toroidal exit surface (14) and can be arranged close to a diode laser (1) so that the risk of wavefront deviations due to defocusing is reduced. The element has a high coupling efficiency. The beam shaper is also provided with a grating for forming a sub-beam from the radiation beam.
摘要翻译：描述了一种用于将具有椭圆形横截面的辐射束（5,6,7,8）转换成具有更圆形横截面的光束（9）的光束整形器（10）。该元件（10）具有圆柱形入口表面（12）和环形出射表面（14），并且可以靠近二极管激光器（1）布置，从而降低由于散焦引起的波前偏差的风险。该元件具有高耦合效率。光束整形器还设置有用于从辐射束形成子光束的光栅。

5. 发明申请

US20050265203A1 Optical pickup unit requiring no phase adjustment 审中-公开
标题翻译：不需要相位调整的光学拾取单元
公开(公告)号：US20050265203A1
公开(公告)日：2005-12-01
申请号：US11067448
申请日：2005-02-24
申请人： Toshio Takeuchi
发明人： Toshio Takeuchi
IPC分类号： G11B7/09 , G11B7/00 , G11B7/13 , G11B7/135 , G11B7/1353 , G11B7/1398
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/1398 , G11B2007/0006
摘要： In an optical pickup unit including a diffraction grating for separating an incident beam from a laser diode into a main beam, first and second sub beams, the diffraction grating separates the incident beam into the first and the second sub beams so that each of the first and the second sub beams has, on an optical disc, an elliptic spot shape which becomes longer in a radial direction of the optical disc and which spans at least two tracks.
摘要翻译：在包括用于将来自激光二极管的入射光束分离成主光束的第一和第二子光束的衍射光栅的光学拾取单元中，衍射光栅将入射光束分离成第一和第二子光束，使得第一并且第二子光束在光盘上具有在光盘的径向方向上变得更长并且跨越至少两个轨道的椭圆形斑点形状。

6. 发明授权

US4635244A Optical beam shaping system 失效
标题翻译：光束整形系统
公开(公告)号：US4635244A
公开(公告)日：1987-01-06
申请号：US752356
申请日：1985-07-05
申请人： Hiroshi Gotoh
发明人： Hiroshi Gotoh
IPC分类号： G02B27/09 , G11B7/125 , G11B7/1378 , G11B7/1398 , G11B7/00 , G02B3/06
CPC分类号： G02B27/09 , G02B19/0014 , G02B19/0052 , G02B27/0966 , G02B27/0972 , G11B7/1378 , G11B7/1398
摘要： An optical system includes a semiconductor laser for emitting a laser beam, a coupling lens for converting the laser beam a parallel beam, an optical beam shaping system for increasing the diameter of the parallel beam in a direction in which the semiconductor laser has a smaller far field pattern, and an objective lens for focusing a beam shaped by the optical beam shaping system into a spot. To make the spot substantially circular in shape and increase the light utilization efficiency, the magnification of the optical beam shaping system in a direction parallel to the junction plane of the semiconductor laser is selected to fall in a certain range.
摘要翻译：一种光学系统包括用于发射激光束的半导体激光器，用于将激光束转换成平行光束的耦合透镜，用于增加平行光束在半导体激光器具有较小距离的方向上的直径的光束整形系统场图案和用于将由光束整形系统形成的光束聚焦到光点中的物镜。为了使点大致呈圆形并提高光利用效率，光束整形系统在与半导体激光器的接合面平行的方向上的放大率被选择在一定范围内。

7. 发明授权

US4545651A Optical system for synthesizing plural light beams 失效
标题翻译：用于合成多个光束的光学系统
公开(公告)号：US4545651A
公开(公告)日：1985-10-08
申请号：US454869
申请日：1982-12-30
申请人： Kiichi Kato , Masaharu Sakamoto
发明人： Kiichi Kato , Masaharu Sakamoto
IPC分类号： G02B27/10 , G02B27/28 , G11B7/08 , G11B7/12 , G11B7/135 , G11B7/1359 , G11B7/1392 , G11B7/1398 , G02B5/30
CPC分类号： G11B7/1398 , G02B27/1006 , G02B27/14 , G02B27/144 , G02B27/28 , G11B7/08 , G11B7/1359 , G11B7/13922
摘要： In an optical system for synthesizing a plurality of light beams, a first light beam of parallel light rays emitted from a laser beam source is incident on an inclined face of a right angle prism through the prism. A second light beam of parallel light rays emitted from a laser beam source is incident to the inclined face at a predetermined angle of incidence. The first light beam is emitted to the inclined face at an angle of incidence equal to a critical angle so that the first light beam is totally inflected by the inclined face and transmitted in a predetermined direction. The second light beam is refracted at an angle of refraction substantially equal to the Brewster's angle, and then transmitted in a direction which defines a predetermined angular difference with the predetermined direction of the first light beam. A multi-layered film is formed on the inclined face. The film makes the angle of refraction of the second light beam approach the critical angle, so as to reduce the angular difference from that which would exist in the absence of the film.
摘要翻译：在用于合成多个光束的光学系统中，从激光束源发射的平行光线的第一光束通过棱镜入射到直角棱镜的倾斜面上。从激光束发射的平行光线的第二光束以预定的入射角入射到倾斜面。第一光束以等于临界角的入射角发射到倾斜面，使得第一光束被倾斜面完全折射并沿预定方向透射。第二光束以基本上等于布鲁斯特角的折射角折射，然后沿与第一光束的预定方向限定预定角度差的方向透射。在倾斜面上形成多层膜。该胶片使第二光束的折射角接近临界角，从而减小与不存在胶片时所存在的角度差。

8. 发明授权

US4115809A Laser beam system for optically recording information signals on a record disc 失效
标题翻译：用于在记录盘上光学记录信息信号的激光束系统
公开(公告)号：US4115809A
公开(公告)日：1978-09-19
申请号：US745685
申请日：1976-11-29
申请人： Ichiro Ueno
发明人： Ichiro Ueno
IPC分类号： G02B27/09 , G01M11/00 , G11B7/007 , G11B7/013 , G11B7/125 , G11B7/135 , G11B7/1381 , G11B7/1398 , H04N5/76
CPC分类号： G11B7/1381 , G11B7/007 , G11B7/1398 , G11B7/24085
摘要： The inventive system optically records information signals on a recording disc. A light source, such as a laser beam, for example, emits a light which is modulated in conformance with an information signal that is to be recorded. An optical system converts this light into a beam having a large width in the longitudinal direction of a track formed on the recording disc. There is a small beam dimension in the transverse direction of the track. A slit plate within the optical system limits the width of the light to cause a constant beam width in the transverse direction of the track. A focusing lens receiving, as incident light, such a limited light beam forms a light spot on the recording disc which is small in the longitudinal direction of the track and large in the transverse direction of the track. The light spot forms a plurality of pits in the upper surface of the recording disc. Each of these pits has a small width in the longitudinal direction of the track and a constant large width in the transverse direction of the track, thereby to record the information signal along the track on the recording disc.
摘要翻译：本发明的系统将信息信号光记录在记录盘上。诸如激光束的光源例如发射根据要被记录的信息信号被调制的光。光学系统将该光转换成在记录盘上形成的轨迹的纵向具有大的宽度的光束。在轨道的横向上存在小的梁尺寸。光学系统内的狭缝板限制了光的宽度，以在轨道的横向方向上形成恒定的光束宽度。接收作为入射光的这种有限光束的聚焦透镜在记录盘上形成光斑，该光点在轨道的纵向方向上较小并且在轨道的横向方向上较大。光斑在记录盘的上表面形成多个凹坑。这些凹坑中的每一个在轨道的纵向上具有小的宽度，并且在轨道的横向方向上具有恒定的大的宽度，从而沿着记录盘上的轨道记录信息信号。

9. 发明申请

US20140355403A1 OPTICAL INFORMATION PROCESSING APPARATUS AND OPTICAL INFORMATION PROCESSING METHOD, AND ADJUSTMENT DEVICE, ADJUSTMENT METHOD, AND ADJUSTMENT PROGRAM FOR OPTICAL INFORMATION PROCESSING APPARATUS 有权
标题翻译：光信息处理装置和光信息处理方法，调整装置，调整方法和光信息处理装置的调整程序
公开(公告)号：US20140355403A1
公开(公告)日：2014-12-04
申请号：US14374866
申请日：2013-02-21
申请人： Mitsubishi Electric Corporation
发明人： Tomo Kishigami , Nobuo Takeshita
IPC分类号： G11B7/1392 , G11B7/1398
CPC分类号： G11B7/13925 , G11B7/0908 , G11B7/0925 , G11B7/094 , G11B7/0943 , G11B7/0945 , G11B7/1378 , G11B7/1398 , G11B11/10576 , G11B2007/13727
摘要： An optical information processing apparatus includes: a unit that radiates light onto an optical disc and detects the reflected light to output a reproduced signal; a unit that corrects spherical aberration of the light; a unit that adjusts a focus position of the light based on a focus adjustment value; and an adjustment unit that measures a characteristic of the reproduced signal at each of at least three positions on each of at least three straight lines on a plane with coordinate axes representing an amount of spherical aberration correction and focus adjustment value, obtains, from the measurements, as estimated positions, at least five positions on the plane at which the characteristic has substantially the same value, performs an ellipse approximation on the estimated positions, obtains a center of the ellipse, and determines the amount of spherical aberration correction and focus adjustment value based on the center of the ellipse.
摘要翻译：光信息处理设备包括：将光辐射到光盘上并检测反射光以输出再现信号的单元; 校正光的球面像差的单元; 基于焦点调整值来调整光的聚焦位置的单元; 以及调整单元，其在具有表示球面像差校正和焦点调整值的坐标轴的平面上的至少三条直线中的至少三个位置中的至少三个位置的每一个处测量再现信号的特性，作为估计位置，在特征具有基本相同值的平面上的至少五个位置对估计位置执行椭圆近似，获得椭圆的中心，并且确定球面像差校正量和焦点调整值基于椭圆的中心。

10. 发明申请

US20050111516A1 Optical pickup apparatus 审中-公开
标题翻译：光拾取装置
公开(公告)号：US20050111516A1
公开(公告)日：2005-05-26
申请号：US10982053
申请日：2004-11-04
申请人： Takuji Hatano , Yuichiro Ori , Katsuya Yagi , Yuichi Atarashi
发明人： Takuji Hatano , Yuichiro Ori , Katsuya Yagi , Yuichi Atarashi
IPC分类号： G11B7/125 , G11B7/00 , G11B7/1263 , G11B7/135 , G11B7/1372 , G11B7/1392 , G11B7/1395 , G11B7/1398 , H01S3/08
CPC分类号： G11B7/1263 , G11B7/13925 , G11B7/1395 , G11B7/1398 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup apparatus detects optical information by making a laser beam in a 405 nm wavelength band emitted from a semiconductor laser light source incident on an optical information recording medium and then making the laser beam reflected from the optical information recording medium incident on a photodetector. The optical pickup apparatus has a polarizing beam splitter including a polarizing beam splitting film that forms an optical path from the semiconductor laser light source to the optical information recording medium by reflecting the s-polarized component of the laser beam and that forms an optical path from the optical information recording medium to the photodetector by transmitting the p-polarized component of the laser beam; and a monitoring sensor that receives the laser beam to monitor the laser output intensity of the semiconductor laser light source. The polarizing beam splitter transmits part of the s-polarized component, and the monitoring sensor receives this part of the s-polarized component in a position where the center line of the effective light beam received by the monitoring sensor does not coincide with the principal ray of that part of the s-polarized component.
摘要翻译：光拾取装置通过使入射在光信息记录介质上的半导体激光光源发射的405nm波长带中的激光束，并使从光信息记录介质反射的激光束入射到光电检测器上来检测光信息。光拾取装置具有偏振分束器，该偏振光束分离器包括偏振分束膜，该偏振分束膜通过反射激光束的s偏振分量形成从半导体激光源到光信息记录介质的光路，并形成光路通过透射激光束的p偏振分量将光学信息记录介质传送到光电检测器; 以及监测传感器，其接收激光束以监测半导体激光光源的激光输出强度。偏振光束分离器透射部分s偏振分量，监测传感器接收该偏振分量的该部分，其中监测传感器接收的有效光束的中心线与主光线不一致的那部分s偏振分量。

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