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1. 发明申请

US20110267934A1 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：光学拾取，光学信息设备，计算机，光盘播放器，车载导航系统，光盘记录器和光盘服务器
公开(公告)号：US20110267934A1
公开(公告)日：2011-11-03
申请号：US13181574
申请日：2011-07-13
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： G11B7/135 , G11B17/028
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。

2. 发明申请

US20090262629A1 OPTICAL HEAD, OPTICAL DISC DEVICE AND INFORMATION RECORDING AND/OR REPRODUCING DEVICE 失效
标题翻译：光头，光盘设备和信息记录和/或再现设备
公开(公告)号：US20090262629A1
公开(公告)日：2009-10-22
申请号：US12415033
申请日：2009-03-31
申请人： Fumitomo YAMASAKI , Yoshiaki Komma , Toshiyasu Tanaka , Kanji Wakabayashi
发明人： Fumitomo YAMASAKI , Yoshiaki Komma , Toshiyasu Tanaka , Kanji Wakabayashi
IPC分类号： G11B7/135
CPC分类号： G11B7/1395 , G11B7/1275 , G11B2007/0006
摘要： An optical head is provided with a light source for emitting a first laser beam having a first wavelength shorter than 430 nm, a two-wavelength light source for emitting a second laser beam having a second wavelength equal to or longer than 430 nm, a flat beam splitter in the form of a single plate for reflecting the first laser beam emitted from the light source, a wedge prism in the form of a single plate for reflecting the first laser beam reflected by the flat beam splitter and transmitting the second laser beam emitted from the two-wavelength light source, and an objective lens for focusing the first laser beam reflected by the wedge prism on an information recording surface of a BD. The light source is arranged such that the optical axis of the first laser beam emitted from the light source is inclined with respect to that of the second laser beam emitted from the two-wavelength light source. By this construction, the miniaturization of the optical head can be realized.
摘要翻译：光头设置有用于发射第一波长短于430nm的第一激光束的光源，用于发射第二波长等于或大于430nm的第二激光束的双波长光源，平坦用于反射从光源发射的第一激光束的单板形式的分束器，以单个板形式的楔形棱镜，用于反射由平面分束器反射的第一激光束并透射发射的第二激光束和用于将由楔形棱镜反射的第一激光束聚焦在BD的信息记录表面上的物镜。光源被布置成使得从光源发射的第一激光束的光轴相对于从双波长光源发射的第二激光束的光轴倾斜。通过这种结构，可以实现光学头的小型化。

3. 发明申请

US20080186836A1 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：US20080186836A1
公开(公告)日：2008-08-07
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： G11B7/00
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 the 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, in consideration of 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 may be enhanced with its diffraction efficiency.
摘要翻译：本发明提供了一种用于调整光源的出射光量的光学拾取器的光学结构，以便不考虑光学的反射率的差异而对半导体激光器的可靠性不利于适合于光量的光学结构用于记录或再现的光盘。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，可以以衍射效率提高用作光源的半导体激光器的可靠性。

4. 发明申请

US20080175110A1 OPTICAL HEAD, OPTICAL DISC DRIVE, COMPUTER, OPTICAL DISCPLAYER AND OPTICAL DISC RECORDER 有权
标题翻译：光学头，光盘驱动器，计算机，光学分离器和光盘记录器
公开(公告)号：US20080175110A1
公开(公告)日：2008-07-24
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： G11B7/12 , G11B7/00 , G11B7/135 , G11B7/24
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; 用于将第一和第二介质的各个存储层上的第n个和第n个第一个光的会聚的物镜; 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。

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. 发明申请

US20090080298A1 OPTICAL HEAD, OPTICAL HEAD MANUFACTURING METHOD AND OPTICAL DISC DEVICE 有权
标题翻译：光头，光头制造方法和光盘设备
公开(公告)号：US20090080298A1
公开(公告)日：2009-03-26
申请号：US12238888
申请日：2008-09-26
申请人： Fumitomo YAMASAKI , Yoshiaki Komma , Kanji Wakabayashi
发明人： Fumitomo YAMASAKI , Yoshiaki Komma , Kanji Wakabayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/1275 , G11B7/13925 , G11B2007/0006
摘要： It is aimed to provide an optical head, an optical head manufacturing method and an optical disc device capable of correcting coma aberration generated due to different positions of emission points of a plurality of laser lights having different wavelengths.A two-wavelength laser light source 1 is arranged to correct coma aberration generated in a radial direction of a CD 80 in the case where an objective lens 6 is tilted to locate an inner peripheral end of the objective lens 6 in the radial direction of the CD 80 lower than an outer peripheral end thereof, and an objective lens actuator 9 tilts the objective lens 6 to locate the inner peripheral end of the objective lens 6 in the radial direction of the CD 80 lower than the outer peripheral end thereof.
摘要翻译：旨在提供一种能够校正由于具有不同波长的多个激光的发射点的不同位置而产生的彗差的光学头，光学头制造方法和光盘装置。在物镜6倾斜的情况下，配置双波长激光光源1，以校正在CD 80的径向上产生的彗形像差，以使物镜6的内周端位于 CD 80低于其外周端，物镜致动器9使物镜6倾斜，使物镜6的内周端沿CD80的径向低于其外周端。

8. 发明申请

US20120314558A1 COMPOSITE OBJECTIVE LENS, DIFFRACTION ELEMENT, OPTICAL HEAD DEVICE, OPTICAL INFORMATION DEVICE, OBJECTIVE LENS DRIVING METHOD AND CONTROL DEVICE 有权
标题翻译：复合目标镜头，衍射元件，光学头装置，光学信息装置，目标镜头驱动方法和控制装置
公开(公告)号：US20120314558A1
公开(公告)日：2012-12-13
申请号：US13558465
申请日：2012-07-26
申请人： Yoshiaki KOMMA , Toshiyasu TANAKA , Fumitomo YAMASAKI
发明人： Yoshiaki KOMMA , Toshiyasu TANAKA , Fumitomo YAMASAKI
IPC分类号： G02B5/18 , G11B19/20 , G11B7/1374
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： In an optical head device which performs recording/reading of data in/from a high-density optical disc using an objective lens with a large NA, a saw-tooth shape diffraction element is used for also performing recording/reading of data in/from a conventional optical disc, such as DVD, CD, or the like. A step difference that produces an optical path length for blue light which is equal to or longer than the wavelength of the blue light and optical path lengths for red and infrared light which are shorter than the wavelengths of the red and infrared light is utilized so as to exert an inverse action on the blue light to those exerted on the red and infrared light. The effect of increasing the working distances for CD and DVD enables multiple compatibility. The optical element is integrally combined with the objective lens to perform a tracking servo following operation.
摘要翻译：在使用具有大NA的物镜的高密度光盘中进行数据的记录/读取的光学头装置中，使用锯齿形衍射元件也进行数据的记录/读取常规的光盘，例如DVD，CD等。使用等于或长于蓝光的波长的蓝色光的路径长度和比红色和红外光的波长短的红色和红色光的光路长度的阶差，被利用为对蓝色光施加与红色和红色光上的那些相反的作用。增加CD和DVD的工作距离的效果可以实现多种兼容性。光学元件与物镜整体地组合以执行跟踪伺服跟随操作。

9. 发明申请

US20100208563A1 INFORMATION RECORDING MEDIUM, REPRODUCING APPARATUS AND REPRODUCING METHOD 有权
标题翻译：信息记录介质，再现设备和再现方法
公开(公告)号：US20100208563A1
公开(公告)日：2010-08-19
申请号：US12634042
申请日：2009-12-09
申请人： Masahito NAKAO , Yasumori HINO , Yoshiaki KOMMA , Fumitomo YAMASAKI , Kousei SANO
发明人： Masahito NAKAO , Yasumori HINO , Yoshiaki KOMMA , Fumitomo YAMASAKI , Kousei SANO
IPC分类号： G11B7/20 , G11B7/26
CPC分类号： G11B7/1267 , G11B7/005 , G11B7/24038 , G11B7/26
摘要： An information recording medium according to the present invention includes at least three information recording layers. If the readout power of a laser beam in reading information from an information recording layer L(n) is identified by Pw(n), and if the readout power of the laser beam in reading information from an information recording layer L(n+a) is identified by Pw(n+a), then a base thickness between the information recording layers is determined so that the intensity of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n) becomes equal to or lower than that of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n+a).
摘要翻译：根据本发明的信息记录介质包括至少三个信息记录层。如果从信息记录层L（n）读取信息中的激光束的读出功率被Pw（n）识别，并且如果从信息记录层L（n + a）读取信息中的激光束的读出功率）由Pw（n + a）识别，则信息记录层之间的基底厚度被确定为当信息记录层L（n + a）被激光束照射时具有读出功率的光的强度当信息记录层L（n + a）被具有读出功率Pw（n + a）的激光束照射时，Pw（n）变得等于或低于光的光。

10. 发明申请

US20100034073A1 OPTICAL HEAD DEVICE AND RECORDING/REPRODUCTION DEVICE 有权
标题翻译：光头设备和记录/再现设备
公开(公告)号：US20100034073A1
公开(公告)日：2010-02-11
申请号：US12536926
申请日：2009-08-06
申请人： Eishin MORI , Fumitomo YAMASAKI , Yoshiaki KOMMA
发明人： Eishin MORI , Fumitomo YAMASAKI , Yoshiaki KOMMA
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/1374 , G11B2007/0006
摘要： An optical head device includes a first light source and a second light source which respectively emits a first light beam and a second light beam, a luminous flux separating section which selectively separates the first and second light beams for which the same optical path is used, to first and second optical paths, respectively, a first objective lens for converging the first light beam that has been separated to the first optical path on the first optical information recording medium, a second objective lens made of resin for converging the second light beam separated to the second optical path on the second optical information recording medium, and a first filtering section formed on a beam exit face of the second objective lens, for reducing the transmittance of the first light beam to be lower than transmittance of the second light beam.
摘要翻译：光头装置包括分别发射第一光束和第二光束的第一光源和第二光源，选择性地分离使用相同光路的第一和第二光束的光束分离部分，分别到第一和第二光路的第一物镜，用于会聚已经分离的第一光束到第一光信息记录介质上的第一光路;第二物镜，由树脂制成，用于会聚第二光束分离到第二光学信息记录介质上的第二光路，以及形成在第二物镜的光束出射面上的第一滤光部，用于将第一光束的透射率降低到低于第二光束的透射率。

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