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1. 发明授权

US5016237A Prism optics stable with respect to wavelength and temperature variations and optical information processing apparatus 失效
标题翻译：棱镜光学相对于波长和温度变化稳定，光信息处理装置
公开(公告)号：US5016237A
公开(公告)日：1991-05-14
申请号：US382025
申请日：1989-07-19
申请人： Shigeru Nakamura , Sadao Takahashi , Masateru Watanabe , Akira Arimoto
发明人： Shigeru Nakamura , Sadao Takahashi , Masateru Watanabe , Akira Arimoto
IPC分类号： G02B5/04 , G02B27/09 , G11B7/135
CPC分类号： G02B27/0972 , G02B27/09 , G02B5/04
摘要： Prism optics for changing the shape of a light beam, including a composite prism consisting of at least two types of prisms made of materials having different variations in the refractive index due to variations of the refractive index due to wavelength variations and to temperature variations, which materials are so chosen that the angle of the light beam exitting from the prism optics remains almost constant, independent of variations in the wavelength of the light beam and temperature, and an optical information processing apparatus using these prism optics.
摘要翻译：用于改变光束形状的棱镜光学器件，包括由至少两种类型的棱镜组成的复合棱镜，所述棱镜由于由于波长变化引起的折射率的变化以及由于波长变化引起的折射率的不同而具有不同的折射率的材料以及温度变化，材料被选择为使得从棱镜光学器件发射的光束的角度保持几乎恒定，而与光束和温度的波长的变化无关，以及使用这些棱镜光学器件的光学信息处理设备。

2. 发明授权

US4742218A Focus error detection apparatus utilizing focusing an front and rear sides of focal planes 失效
标题翻译：利用聚焦平面的前后侧的聚焦误差检测装置
公开(公告)号：US4742218A
公开(公告)日：1988-05-03
申请号：US828354
申请日：1986-02-11
申请人： Shigeru Nakamura , Toshimasa Kamisada , Akira Saito , Takeshi Maeda , Yoshito Tsunoda , Toshimitsu Kaku , Tuyoshi Kato , Masaaki Hishiki , Masateru Watanabe
发明人： Shigeru Nakamura , Toshimasa Kamisada , Akira Saito , Takeshi Maeda , Yoshito Tsunoda , Toshimitsu Kaku , Tuyoshi Kato , Masaaki Hishiki , Masateru Watanabe
IPC分类号： G11B7/09 , G11B11/105 , G01J1/20 , G11B5/09
CPC分类号： G11B7/0912 , G11B11/10541 , G11B11/10576
摘要： A focus error detection apparatus and an optical disk apparatus comprising a focusing lens for focusing reflected light coming from a light reflecting surface which is to be adjusted at the focal point of a projected light beam; a beam splitter means for dividing the output light of said focusing lens into a first and a second focused light beam; a first and a second photo-detector disposed respectively on the optical paths of said first and said second focused light beam, one of which is located behind the convergence point of said first focused light beam and the other of which is located before the convergence point of said second focused light beam, each of them generating outputs proportional to the amount of light within a predetermined region of the received light image, when it varies so that it is enlarged; and a circuit generating a focus error signal by using the difference between the outputs of said two photo-detectors.
摘要翻译：一种聚焦误差检测装置和光盘装置，包括：聚焦透镜，用于聚焦来自被投影光束的焦点处被调节的光反射表面的反射光; 分束器装置，用于将所述聚焦透镜的输出光分成第一和第二聚焦光束; 分别设置在所述第一和第二聚焦光束的光路上的第一和第二光电检测器，其中一个位于所述第一聚焦光束的会聚点之后，另一个位于会聚点之前所述第二聚焦光束中的每一个产生与所接收的光图像的预定区域内的光量成比例的输出，当其变化使得其被放大时; 以及通过使用所述两个光电检测器的输出之间的差产生聚焦误差信号的电路。

3. 发明授权

US4770507A Prism optics and optical information processing apparatus 失效
标题翻译：棱镜光学和光学信息处理设备
公开(公告)号：US4770507A
公开(公告)日：1988-09-13
申请号：US700184
申请日：1985-02-11
申请人： Akira Arimoto , Shigeru Nakamura
发明人： Akira Arimoto , Shigeru Nakamura
IPC分类号： G02B17/04 , G02B27/09 , G11B7/135 , G02B13/10 , G02B5/04 , G02B26/08
CPC分类号： G02B27/0972 , G02B17/04 , G02B27/09 , G02B27/0911 , G11B7/1356 , G11B7/1359 , G11B7/1398
摘要： An optical system for converting the shape of a light beam by making use of refraction of prisms comprises a prism optic which includes a complex prism constituted by combination of at least two types of prisms made of materials differing from each other in respect to dispersion of refractivity. An optical information processing apparatus includes the optical system employing the prisms. Geometric optical properties of the optical system are insusceptible to being changed irrespective of changes in wavelength of the light beam brought about by dispersion in oscillation wavelength of a light source, change in the course of time lapse, change in ambient temperature and/or change in emitted light energy. With the optical system, information processing is realized which is insusceptible to the influence of the change in wavelength of the light beam.
摘要翻译：用于通过利用棱镜的折射来转换光束的形状的光学系统包括棱镜光学元件，其包括由至少两种类型的棱镜组成的复杂棱镜，所述至少两种类型的棱镜相对于折射率的分散而彼此不同。光信息处理设备包括采用棱镜的光学系统。光学系统的几何光学性质不管是由光源的振荡波长的分散引起的光束的波长的变化而变化，而是随着时间流逝的变化，环境温度的变化和/或变化而变化发出光能。利用光学系统，实现了对光束波长变化的影响是不可见的信息处理。

4. 发明授权

US5418763A Disc recording system 失效
标题翻译：光盘录音系统
公开(公告)号：US5418763A
公开(公告)日：1995-05-23
申请号：US91914
申请日：1993-07-16
申请人： Atsushi Ichikawa , Masateru Watanabe , Tokuya Kaneda , Toshihiko Ishizaka , Shigeru Nakamura
发明人： Atsushi Ichikawa , Masateru Watanabe , Tokuya Kaneda , Toshihiko Ishizaka , Shigeru Nakamura
IPC分类号： G11B17/22 , G11B27/00 , G11B27/034 , G11B27/34
CPC分类号： G11B27/034 , G11B17/225 , G11B27/002 , G11B2220/20 , G11B2220/41 , G11B27/34
摘要： A sealed library type optical disc unit is combined with an exchangeable cartridge type disc unit in a data storage and retrieval system. The optical discs within the sealed unit are exposed, as opposed to being encased in cartridges. A data access unit can quickly and efficiently access the exposed optical discs for loading them on an optical disc recording/reproducing unit. A control unit manages the transfer of data from a host computer to the storage and retrieval system. If a data write request exceeds the storage capacity of the optical disc within the sealed space, the excess data is written to the cartridge type disc unit without intervention by an operator and without interruption of the post processor. During a read operation, if data is requested that has been previously recorded on a cartridge type disc, the disc ID is displayed so that an operator can insert the disc into the cartridge type disc unit for the read operation. Data can also be copied from the cartridge type disc to the sealed space discs and vice versa, as well as between the sealed space discs by inputting such a command to a keyboard by an operator.
摘要翻译：密封库式光盘单元与数据存储和检索系统中的可更换盒式盘单元组合。密封单元内的光盘被暴露，而不是被包装在墨盒中。数据存取单元可以快速且有效地访问暴露的光盘，将其装载在光盘记录/重放单元上。控制单元管理从主机到存储和检索系统的数据传输。如果数据写入请求超过密封空间内的光盘的存储容量，则多余的数据被写入盒型盘单元，而无需操作人员的介入，而不会中断后处理器。在读取操作期间，如果要求先前记录在盒式盘上的数据，则显示盘ID，使得操作者可以将盘插入盒式盘单元中进行读取操作。数据也可以从盒式盘复制到密封空间盘，反之亦然，也可以通过操作员将这样的命令输入到键盘而在密封空间盘之间。

5. 发明授权

US07292519B2 Optical head with lasers and mirrors in a recess formed in a substrate 失效
标题翻译：具有在衬底中形成的凹部中的激光器和反射镜的光学头
公开(公告)号：US07292519B2
公开(公告)日：2007-11-06
申请号：US11028325
申请日：2005-01-04
申请人： Kimio Tatsuno , Masahide Tokuda , Hirohisa Sano , Toshiaki Tanaka , Takeshi Shimano , Shigeru Nakamura , Takeshi Maeda , Akira Arimoto
发明人： Kimio Tatsuno , Masahide Tokuda , Hirohisa Sano , Toshiaki Tanaka , Takeshi Shimano , Shigeru Nakamura , Takeshi Maeda , Akira Arimoto
IPC分类号： G11B7/00
CPC分类号： G11B7/22 , G11B7/123 , G11B7/1275 , G11B2007/0006 , H01S5/02216 , H01S5/02244 , H01S5/02252 , H01S5/02292 , H01S5/02296 , H01S5/0683 , H01S5/4087
摘要： An integrated optical head records and reproduces information to and from optical discs of different types, including CD and DVD, with use of a single information recording/reproducing apparatus. The optical head has a plurality of semiconductor lasers of different wavelengths integrated by index alignment onto a substrate formed with an optoelectric integrated circuit, photodetection patterns, and a reflecting mirror.
摘要翻译：集成光学头使用单个信息记录/再现装置将信息记录到不同类型的光盘（包括CD和DVD）上并从其中再现信息。该光头具有多个不同波长的半导体激光器，其通过索引对准而集成到形成有光电集成电路，光电检测图案和反射镜的基板上。

6. 发明授权

US5627926A Prism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the same 失效
标题翻译：用于有效地发射预定范围内的光通量的棱镜板，以及使用其的液晶指示器和指示器照明方法
公开(公告)号：US5627926A
公开(公告)日：1997-05-06
申请号：US533547
申请日：1995-09-25
申请人： Shigeru Nakamura , Akira Arimoto , Kenkichi Suzuki , Katsuhiko Shibata
发明人： Shigeru Nakamura , Akira Arimoto , Kenkichi Suzuki , Katsuhiko Shibata
IPC分类号： G02B5/04 , F21V5/02 , F21V8/00 , G02B6/00 , G02F1/1335 , G02F1/13357 , G02B6/34 , F21V9/04
CPC分类号： G02B6/0053 , F21V5/02 , G02B6/0036 , G02B6/0043 , Y10S385/901
摘要： An information indicator suitable for information processors such as personal computers, word processors and the like includes a light source, a scattering plate which scatters light from the light source, an indicator plate irradiated with scattered light from the scattering plate, and a prism plate operatively arranged with respect to the scattering plate and the indicator plate and having a prism-like protuberance structure formed at a side thereof. The prism plate is so disposed that the prism-like protuberance structure faces the scattering plate, and the angle 2.theta. constituting the prism-like protuberance structure is defined by the formula, 2.theta..ltoreq.2/3.times.(.pi./2+2.times.arcsin (n'/n)), in this inequality, n is the refractive index of said prism plate medium, and n' is the refractive index of a material in which the prism plate is arranged.
摘要翻译：适合于诸如个人计算机，文字处理器等的信息处理器的信息指示器包括光源，散射来自光源的光的散射板，从散射板照射的散射光的指示板和可操作地使用的棱镜板相对于散射板和指示板布置并且具有形成在其一侧的棱柱状突起结构。棱镜板被设置成使得棱柱状突起结构面向散射板，并且构成棱柱状突起结构的角度2θ由公式2θ= E + 2，E 2 + 3 + EE 在该不等式中，x（pi / 2 + 2xarcsin（n'/ n）），n是所述棱镜板介质的折射率，n'是棱镜板的材料的折射率。

7. 发明授权

US5404344A Recording/reproducing optical head producing focusing error signal from zero-th order diffracted light and tracking error signal from first order diffracted light 失效
$Recording/reproducing optical head producing focusing error signal from zero-th order diffracted light and tracking error signal from first order diffracted light$
标题翻译：从零级衍射光产生聚焦误差信号的记录/再现光头和来自一级衍射光的跟踪误差信号
公开(公告)号：US5404344A
公开(公告)日：1995-04-04
申请号：US154482
申请日：1993-11-19
申请人： Nobuo Imada , Kunikazu Ohnishi , Tohru Sasaki , Masayuki Inoue , Akira Arimoto , Shigeru Nakamura , Takeshi Nakao
发明人： Nobuo Imada , Kunikazu Ohnishi , Tohru Sasaki , Masayuki Inoue , Akira Arimoto , Shigeru Nakamura , Takeshi Nakao
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B11/10 , G11B11/105 , G11B7/00
CPC分类号： G11B7/09 , G11B7/131 , G11B7/1353
摘要： A recording/reproducing optical head capable of causing a light spot on a photodetector for detecting a focusing error signal to stand still without being affected by variations in wavelength of light used, capable of adjusting a tracking error signal independently of the focusing error signal, and capable of utilizing light having an order of diffraction of -1 for the purpose of detecting a signal, in which a cylindrical lens for generating astigmatism and a diffraction grating made up of two regions different in the direction of diffraction or the angle of diffraction from each other are interposed between a beam splitter and a photodetector, a light beam diffracted from the diffraction grating and including the diffracted light of the zero-th order (that is, light which has passed through the diffraction grating without being deflected) is received by the photodetector, the diffracted light of the zero-th order is used for detecting a focusing error signal according to the astigmatism method, and diffracted light having an order of diffraction of +1 and diffracted light having an order of diffraction of -1 are used for detecting a tracking error signal.
摘要翻译：一种记录/再现光学头，其能够使光检测器上的光点用于检测聚焦误差信号静止而不受所用光波长的变化的影响，能够独立于聚焦误差信号调整跟踪误差信号;以及能够利用衍射次数为-1的光来检测信号，其中用于产生像散的柱面透镜和衍射光栅由衍射方向不同的两个区域或每个衍射方向衍射的角度构成另外设置在分束器和光电检测器之间，从衍射光栅衍射的光束并且包括零级的衍射光（即，已经通过衍射光栅而不被偏转的光）被光电检测器，零级的衍射光用于根据散光检测聚焦误差信号 sm方法，衍射次数为+1的衍射光和衍射级数为-1的衍射光用于检测跟踪误差信号。

8. 发明授权

US5467417A Prism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the same 失效
标题翻译：用于有效地发射预定范围内的光通量的棱镜板，以及使用其的液晶指示器和指示器照明方法
公开(公告)号：US5467417A
公开(公告)日：1995-11-14
申请号：US117789
申请日：1993-09-08
申请人： Shigeru Nakamura , Akira Arimoto , Kenkichi Suzuki , Katsuhiko Shibata
发明人： Shigeru Nakamura , Akira Arimoto , Kenkichi Suzuki , Katsuhiko Shibata
IPC分类号： G02B5/04 , F21V5/02 , F21V8/00 , G02B6/00 , G02F1/1335 , G02F1/13357 , G02B6/34 , F21V9/04
CPC分类号： G02B6/0053 , F21V5/02 , G02B6/0036 , G02B6/0043 , Y10S385/901
摘要： An information indicator suitable for information processors such as personal computers, word processors and the like includes a light source, a scattering plate which scatters light from the light source, an indicator plate irradiated with scattered light from the scattering plate, and a prism plate operatively arranged with respect to the scattering plate and the indicator plate and having a prism-like protuberance structure formed at a side thereof. The prism plate is so disposed that the prism-like protuberance structure faces the scattering plate, and the angle 2.theta. constituting the prism-like protuberance structure is defined by the formula, 2.theta.>2/3.times.(.pi./2+2.times.arcsin (n'/n)), in this inequality, n is the refractive index of said prism plate medium, and n' is the refractive index of a material in which the prism plate is arranged.
摘要翻译：适合于诸如个人计算机，文字处理器等的信息处理器的信息指示器包括光源，散射来自光源的光的散射板，从散射板照射的散射光的指示板和可操作地使用的棱镜板相对于散射板和指示板布置并且具有形成在其一侧的棱柱状突起结构。棱镜板被设置为使得棱柱状突起结构面向散射板，并且构成棱柱状突起结构的角度2θ由公式2θ> 2 / 3x（pi / 2 + 2xarcsin（n '/ n）），在该不等式中，n是所述棱镜板介质的折射率，n'是配置棱镜板的材料的折射率。

9. 发明授权

US5361244A Optical head and information recording apparatus 失效
标题翻译：光头和信息记录装置
公开(公告)号：US5361244A
公开(公告)日：1994-11-01
申请号：US865114
申请日：1992-04-08
申请人： Shigeru Nakamura , Akira Arimoto , Takeshi Nakao , Mariko Umeda
发明人： Shigeru Nakamura , Akira Arimoto , Takeshi Nakao , Mariko Umeda
IPC分类号： G11B7/09 , G11B7/135 , G11B7/22 , H01S5/022 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/0909 , G11B7/22 , H01S5/02248 , H01S5/02288 , H01S5/02296 , H01S5/0683
摘要： Disclosed herein is a compact, adjustment-free, unitary optical head wherein diffraction grating made of a birefrigence material and having convexities and concavities of grating grooves so set that the difference of their optical path lengths is some multiples and a half of the wavelength for an ordinary beam and an extraordinary beam, a diffraction grating providing astigmatisms to .+-.1 order beams, a quarter wavelength plate, and other optical components, are interposed between a semiconductor laser and a focussing lens and are stored inside an optical head body filled with a dry nitrogen gas. A focus error detection signal is obtained from the difference of the degrees of modulation of the .+-.1 order reflected beams by pre-wobbled pits, and adjustment of the optical beam can be carried out by driving the body by a two-directional head actuator.
摘要翻译：本文公开了一种紧凑的，无调节的单一光学头，其中衍射光栅由双折射材料制成并且具有如此设置的光栅槽的凸起和凹陷，使得它们的光程长度的差是波长的一半的一半普通光束和非常光束，向+/- 1阶光束，四分之一波长板和其他光学部件提供散光的衍射光栅插入在半导体激光器和聚焦透镜之间，并且被存储在填充有干燥氮气。根据预摆动凹坑的+/- 1级反射光束的调制度的差异获得聚焦误差检测信号，光束的调节可以通过双向头部的驱动来进行执行器。

10. 发明授权

US06785203B2 Optical lens for optical disc drive with aberration suppression for recording/reproducing for a plurality of optical disc types 有权
标题翻译：用于光盘驱动器的光学透镜，用于多个光盘类型的记录/再现的像差抑制
公开(公告)号：US06785203B2
公开(公告)日：2004-08-31
申请号：US09793544
申请日：2001-02-27
申请人： Koichi Maruyama , Takeshi Shimano , Shigeru Nakamura , Akira Arimoto , Kazuo Shigematsu
发明人： Koichi Maruyama , Takeshi Shimano , Shigeru Nakamura , Akira Arimoto , Kazuo Shigematsu
IPC分类号： G11B709
CPC分类号： G11B7/1374 , G11B7/123 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： An objective lens converges a shorter wavelength laser beam on a DVD having a protective layer, which is 0.6 mm thick, and a longer wavelength laser beam on a CD having a protective layer, which is 1.2 mm thick. A common region is defined on the objective lens. The common region provides a numerical aperture appropriate for converging the longer wavelength laser beam on the CD. Coma of the objective lens in the first region is compensated better in a case where the longer wavelength laser beam is converged on the CD than a case where the shorter wavelength laser beam is converged on the DVD.
摘要翻译：物镜将较短波长的激光束会聚在具有0.6mm厚的保护层的DVD上，并且在具有1.2mm厚的保护层的CD上具有较长波长的激光束。在物镜上定义公共区域。公共区域提供适合于将更长波长的激光束会聚在CD上的数值孔径。在较长波长的激光束会聚在CD上的情况下，比较短波长的激光束会聚在DVD上的情况更好地补偿第一区域中的物镜的昏迷。

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