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1. 发明授权

US08072870B2 Optical pickup and optical disc drive 失效
标题翻译：光学拾取和光盘驱动器
公开(公告)号：US08072870B2
公开(公告)日：2011-12-06
申请号：US11966079
申请日：2007-12-28
申请人： Toshiyasu Tanaka , Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma
发明人： Toshiyasu Tanaka , Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma
IPC分类号： G11B7/135
CPC分类号： G11B7/1356 , G11B7/126 , G11B7/1374 , G11B7/1376 , G11B7/13922 , G11B7/13925 , G11B7/1395 , G11B2007/0006
摘要： The present invention provides an optical structure of an optical pickup for adjusting an exit light quantity of a light source, so as not to have adverse effect on reliability of semiconductor laser to be suited to the quantity of light. The exit light quantity of the light source is adjusted in consideration of a difference in reflectivity of optical discs used in recording or reproducing. With this configuration, when composing a compatible optical pickup for recording or reproducing BD and HD DVD by using light diffraction means of diffraction type, the reliability of semiconductor laser used as light source is enhanced with respect to diffraction efficiency.
摘要翻译：本发明提供了一种用于调节光源的出射光量的光学拾取器的光学结构，从而不会对适合于光量的半导体激光器的可靠性产生不利影响。考虑到在记录或再现中使用的光盘的反射率的差异来调节光源的出射光量。利用这种配置，当通过使用衍射型的光衍射装置来组合用于记录或再现BD和HD DVD的兼容光学拾取器时，相对于衍射效率增强了用作光源的半导体激光器的可靠性。

2. 发明授权

US08004952B2 Optical pickup, optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server 有权
标题翻译：光学拾音器，光学信息装置，计算机，光盘播放器，汽车导航系统，光盘记录器和光盘服务器
公开(公告)号：US08004952B2
公开(公告)日：2011-08-23
申请号：US12678312
申请日：2009-07-07
申请人： Toshiyasu Tanaka , Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Osamu Kajino
发明人： Toshiyasu Tanaka , Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Osamu Kajino
IPC分类号： G11B7/00
CPC分类号： G11B7/0933 , G11B7/22
摘要： To provide an optical pickup and an optical information device, capable of obtaining excellent signal characteristics for an optical disk on and/or from which recording and/or reproducing are performed using a laser. The optical pickup includes an optical detector, a support holder for holding the optical detector, and an optical base for fixing the support holder. The support holder has at least two notches at its both ends, the optical base has convex portions corresponding to the notches of the support holder, the optical base and the support holder are fixed by photo-curable adhesives for bonding the convex portions and the support holder to each other, and the shortest distance between the side faces of the convex portions, which do not face each other, is equal to or less than the width of the support holder in the direction of right and left ends.
摘要翻译：为了提供一种光学拾取器和光学信息装置，能够使用激光器在其上和/或从其执行记录和/或再现的光盘获得优异的信号特性。光学拾取器包括光学检测器，用于保持光学检测器的支撑保持器和用于固定支撑保持器的光学基座。支撑架在其两端具有至少两个凹口，光学基座具有对应于支撑架的凹口的凸起部分，光学基座和支撑架由光固化粘合剂固定，用于将凸部和支撑件彼此不相对的凸部的侧面之间的最短距离等于或小于支撑架在左右两端的方向上的宽度。

3. 发明授权

US07974167B2 Optical disc apparatus, optical information equipment with the optical disc apparatus, and focusing control LSI in the optical disc apparatus 有权
标题翻译：光盘装置，具有光盘装置的光信息设备和聚焦控制LSI在光盘装置中
公开(公告)号：US07974167B2
公开(公告)日：2011-07-05
申请号：US11960973
申请日：2007-12-20
申请人： Kanji Wakabayashi , Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka
发明人： Kanji Wakabayashi , Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka
IPC分类号： G11B7/002
CPC分类号： G11B7/08511 , G11B7/0956 , G11B2007/0006
摘要： In the present invention, at the time of pulling a focus on an information recording surface of a disc, a focus servo is first pulled in a disc surface of the disc, and with the servo in a settled state, a driving signal necessary for following surface wobble is stored, and a focus is pulled in the information recording surface of the disc based upon a signal superimposed with the driving signal and a focus search driving signal.
摘要翻译：在本发明中，在对光盘的信息记录面进行聚焦的时刻，首先在光盘的盘面上拉动聚焦伺服，并且在伺服处于稳定状态时，将跟随所需的驱动信号存储表面摆动，并且基于与驱动信号叠加的信号和焦点搜索驱动信号，将焦点拉到盘的信息记录表面中。

4. 发明申请

US20100177621A1 OPTICAL PICKUP DEVICE AND COLLIMATE LENS 有权
标题翻译：光学拾取装置和胶合镜
公开(公告)号：US20100177621A1
公开(公告)日：2010-07-15
申请号：US12667877
申请日：2008-10-10
申请人： Kanji Wakabayashi , Fumitomo Yamasaki , Yoshiaki Komma , Hironori Tomita
发明人： Kanji Wakabayashi , Fumitomo Yamasaki , Yoshiaki Komma , Hironori Tomita
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/13927 , G11B2007/0006
摘要： It is an object of the present invention to provide an optical pickup device being capable of correcting coma aberration induced in a light-condensing optical system including an objective lens for an optical disc and having a reduced size and a reduced thickness in comparison with the conventional art. The present invention includes a first coma-aberration correction actuator (6) including a first tilt drive portion for inclining an objective lens in a first tilt direction, and a second coma-aberration correction actuator (7) including a second tilt drive portion for inclining, in a second tilt direction, a coma-aberration correction lens placed between a light source and a raising mirror for reflecting emitted light toward the objective lens.
摘要翻译：本发明的目的是提供一种光学拾取装置，其能够校正在具有光盘的物镜的聚光光学系统中引起的彗形像差，并且与常规的相比具有减小的尺寸和减小的厚度艺术。本发明包括第一彗形像差校正致动器（6），其包括用于沿第一倾斜方向倾斜物镜的第一倾斜驱动部分和包括第二倾斜驱动部分的第二彗差校正致动器（7）在第二倾斜方向上，放置在光源和提升镜之间的彗差校正透镜，用于将发射的光反射到物镜。

5. 发明申请

US20080165420A1 AFOCAL LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS AND OPTICAL INFORMATION EQUIPMENT 失效
标题翻译： AFOCAL镜头，光学头，光盘设备和光信息设备
公开(公告)号：US20080165420A1
公开(公告)日：2008-07-10
申请号：US11966109
申请日：2007-12-28
申请人： Fumitomo YAMASAKI , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka , Katsuhiko Hayashi
发明人： Fumitomo YAMASAKI , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka , Katsuhiko Hayashi
IPC分类号： G02B27/30 , G02B27/42
CPC分类号： G02B5/1895 , G11B7/1353 , G11B2007/0006
摘要： [Problem] The present invention provides an afocal lens for an optical head that can ensure WD while satisfying NA, the optical head, an optical disc apparatus, a computer, an optical disc player, and an optical disc recorder.[Solution] Using a blue-violet laser beam source with wavelength of about 400 nm, and in an optical head compatible to optical discs having different protective substrate thickness, an afocal lens 105 that expands a diameter of light flux of light from a collimating lens and emits the light as substantially parallel light to an objective lens is provided between the collimating lens 104 and the objective lens 106. The configuration makes it possible to ensure WD while satisfying NA.
摘要翻译：本发明提供一种能够确保WD同时满足NA的光头的无焦距透镜，光头，光盘装置，计算机，光盘播放器和光盘记录器。 [解决方案]使用具有约400nm波长的蓝紫色激光束源，并且在与具有不同保护衬底厚度的光盘相兼容的光学头中，放置来自准直透镜的光束的直径的无焦透镜105 并且在准直透镜104和物镜106之间设置大致平行的光到物镜的光。该配置使得可以在满足NA的情况下确保WD。

6. 发明申请

US20080101199A1 OPTICAL HEAD AND OPTICAL DISC DEVICE 有权
标题翻译：光头和光盘设备
公开(公告)号：US20080101199A1
公开(公告)日：2008-05-01
申请号：US11924225
申请日：2007-10-25
申请人： Fumitomo YAMASAKI , Kousei Sano , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
发明人： Fumitomo YAMASAKI , Kousei Sano , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/0903 , G11B7/0906 , G11B7/0909 , G11B7/131 , G11B7/1353 , G11B2007/0006
摘要： The present invention aims to provide an optical head and an optical disk device capable of suitably detecting tracking error signals for different types of optical discs.A polarizing hologram element includes a first area and a second area adjacent to the first area in an area where a beam reflected and diffracted by a BD passes. The first area includes a first transmission area for transmitting many 1st-order diffracted lights from the BD, a second transmission area adjacent to the first transmission area and closer to an optical axis than the first transmission area, and a third transmission area adjacent to the first and second transmission areas. The second area includes a fourth transmission area for transmitting many 1st-order diffracted lights from the BD, a fifth transmission area adjacent to the fourth transmission area and closer to the optical axis than the fourth transmission area, and a sixth transmission area adjacent to the fourth and fifth transmission areas.
摘要翻译：本发明的目的在于提供一种能够适当地检测不同类型的光盘的跟踪误差信号的光头和光盘装置。偏振全息元件包括在BD反射和衍射的光束通过的区域中与第一区域相邻的第一区域和第二区域。第一区域包括用于从BD传输许多1个次衍射光的第一透射区域，与第一透射区域相邻并且比第一透射区域更靠近光轴的第二透射区域，以及与第一和第二传输区域相邻的第三传输区域。第二区域包括用于从BD传输许多1个级衍射光的第四传输区域，与第四传输区域相邻并且比第四传输区域更靠近光轴的第五传输区域，以及与第四和第五传输区域相邻的第六传输区域。

7. 发明授权

US08477584B2 Optical head, optical disc drive, computer, optical discplayer and optical disc recorder 有权
标题翻译：光头，光盘驱动器，计算机，光盘播放器和光盘录像机
公开(公告)号：US08477584B2
公开(公告)日：2013-07-02
申请号：US12015688
申请日：2008-01-17
申请人： Fumitomo Yamasaki , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/131 , G11B7/1381 , G11B2007/0006 , G11B2007/0013
摘要： When performing a read or write operation on an optical disc with information storage layers, this compatible optical head with a two-focus lens can reduce interference caused by an unnecessary diffracted light reflected from a non-target layer and not contributing to reading or writing. The head reads and/or writes information from/on storage media, including first and second media with different protective substrate thicknesses, by irradiating a given one with a laser beam and includes: a diffraction element that diffracts the beam to produce diffracted light of multiple orders; an objective lens for converging nth and mth order ones of the light on the respective storage layers of the first and second media; a photodetector that receives the beam reflected from the medium and condensed; and a light shielding portion for preventing a portion of the beam reflected from the storage layer of the second medium and including its optical axis from reaching the photodetector. The light shielding portion is arranged so as to reduce loss to be caused by cutting off the portion of the beam to a predetermined value or less.
摘要翻译：当在具有信息存储层的光盘上执行读取或写入操作时，具有双焦点透镜的兼容光学头可以减少由非目标层反射的不需要的衍射光引起的干扰，并且不会对读取或写入有贡献。头通过用激光束照射给定的一个来读取和/或从存储介质（包括具有不同保护衬底厚度的第一介质和第二介质）读取和/或写入信息，并且包括：衍射元件，衍射光束以产生多个衍射光命令; 用于在第一和第二介质的各个存储层上会聚第n个和第m个光的物镜; 光接收器，其接收从介质反射并聚焦的光束; 以及用于防止从第二介质的存储层反射并包括其光轴的光束的一部分到达光电检测器的遮光部分。遮光部被配置为减少将光束的一部分切断而造成的损失为规定值以下。

8. 发明授权

US08385169B2 Optical disc drive and optical information system 有权
标题翻译：光盘驱动器和光信息系统
公开(公告)号：US08385169B2
公开(公告)日：2013-02-26
申请号：US11965469
申请日：2007-12-27
申请人： Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Toshiyasu Tanaka
发明人： Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Toshiyasu Tanaka
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1362 , G11B7/1376 , G11B7/1381 , G11B19/12 , G11B2007/0006
摘要： An optical disc type is determined by detecting focus error signals and an amount of returned light, while (i) emitting light having a wavelength maximizing a focal length and (ii) moving an objective lens in a direction of an optical axis. If an S shape and AS immediately after a surface are greater than those at the surface, the optical disc is determined to have a largest capacity. It is also determined whether there is a reflective layer at a depth equal or less than 0.1 mm, if not, then it is determined whether there is a reflective layer at a depth of 0.6 mm. If there is a reflective layer at the depth of 0.6 mm, then the type of the reflective layer is determined based on TE/RF signals, using blue light. If the blue light is not adaptable, red light is emitted to replay at a depth of 0.6 mm.
摘要翻译：通过检测聚焦误差信号和返回光量来确定光盘类型，同时（i）发射具有最大化焦距的波长的光和（ii）沿光轴的方向移动物镜。如果在表面之后立即形成S形和AS大于表面处的S形状和AS，则确定光盘具有最大的容量。还确定在等于或小于0.1mm的深度处是否存在反射层，如果不是，则确定在0.6mm的深度是否存在反射层。如果在0.6mm的深度处存在反射层，则使用蓝色光，基于TE / RF信号确定反射层的类型。如果蓝光不适应，则会发出红光以0.6mm的深度重播。

9. 发明授权

US08130603B2 Optical disk driving apparatus, optical disk driving system, vehicle equipped with optical disk driving system, method of correcting spherical aberration in optical disk driving apparatus, program and recording medium 有权
标题翻译：光盘驱动装置，光盘驱动系统，配备有光盘驱动系统的车辆，光盘驱动装置中的球面像差校正方法，程序和记录介质
公开(公告)号：US08130603B2
公开(公告)日：2012-03-06
申请号：US12356212
申请日：2009-01-20
申请人： Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka , Kanji Wakabayashi
发明人： Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka , Kanji Wakabayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/1378 , G11B7/13925
摘要： An optical disk driving apparatus includes an optical head device having a laser light source, a converging optical system converging a light beam emitted by the laser light source onto an optical disk, a photo detector receiving reflected light reflected by the optical disk, and an aberration correcting optical system controlling aberration of the converging optical system; a motor rotating the optical disk; and a control section receiving a signal from the photo detector, wherein the converging optical system has an objective lens formed using resin as a main material, the aberration correcting optical system has a spherical aberration correcting element correcting spherical aberration, and the control section evaluates quality of a reproduction signal for information in the optical disk by using the reflected light received by the photo detector, and utilizes a result of the evaluation to perform closed loop control on the spherical aberration correcting element.
摘要翻译：光盘驱动装置包括具有激光光源的光学头装置，将由激光光源发射的光束会聚在光盘上的会聚光学系统，接受由光盘反射的反射光的光电检测器和像差调整会聚光学系统的像差的光学系统; 旋转光盘的电机; 以及控制部分，其接收来自光检测器的信号，其中会聚光学系统具有使用树脂作为主要材料形成的物镜，像差校正光学系统具有矫正球面像差的球面像差校正元件，并且控制部分评估质量通过使用由光电检测器接收的反射光来获得光盘中的信息的再现信号，并利用评估结果对球面像差校正元件执行闭环控制。

10. 发明申请

US20100074067A1 OPTICAL DISK DRIVING APPARATUS, OPTICAL DISK DRIVING SYSTEM, VEHICLE EQUIPPED WITH OPTICAL DISK DRIVING SYSTEM, METHOD OF CORRECTING SPHERICAL ABERRATION IN OPTICAL DISK DRIVING APPARATUS, PROGRAM AND RECORDING MEDIUM 有权
标题翻译：光盘驱动装置，光盘驱动系统，配有光盘驱动系统的车辆，光盘驱动装置，程序和记录介质校正球形方法
公开(公告)号：US20100074067A1
公开(公告)日：2010-03-25
申请号：US12356212
申请日：2009-01-20
申请人： Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka , Kanji Wakabayashi
发明人： Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka , Kanji Wakabayashi
IPC分类号： G11B7/00 , G11B20/10
CPC分类号： G11B7/1378 , G11B7/13925
摘要： An optical disk driving apparatus includes an optical head device having a laser light source, a converging optical system converging a light beam emitted by the laser light source onto an optical disk, a photo detector receiving reflected light reflected by the optical disk, and an aberration correcting optical system controlling aberration of the converging optical system; a motor rotating the optical disk; and a control section receiving a signal from the photo detector, wherein the converging optical system has an objective lens formed using resin as a main material, the aberration correcting optical system has a spherical aberration correcting element correcting spherical aberration, and the control section evaluates quality of a reproduction signal for information in the optical disk by using the reflected light received by the photo detector, and utilizes a result of the evaluation to perform closed loop control on the spherical aberration correcting element.
摘要翻译：光盘驱动装置包括具有激光光源的光学头装置，将由激光光源发射的光束会聚在光盘上的会聚光学系统，接受由光盘反射的反射光的光电检测器和像差调整会聚光学系统的像差的光学系统; 旋转光盘的电机; 以及控制部分，其接收来自光检测器的信号，其中会聚光学系统具有使用树脂作为主要材料形成的物镜，像差校正光学系统具有矫正球面像差的球面像差校正元件，并且控制部分评估质量通过使用由光电检测器接收的反射光来获得光盘中的信息的再现信号，并利用评估结果对球面像差校正元件执行闭环控制。

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