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公开(公告)号：JP2009017079A
公开(公告)日：2009-01-22
申请号：JP2007174898
申请日：2007-07-03
Inventor： NAKAO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of easily switching between two imaging modes, namely an imaging mode, for example, based on light field photography technology and a normal imaging mode with high resolution by simple configuration and structure. SOLUTION: The imaging apparatus 1 includes an imaging lens 11, a first imaging device 12 disposed on a focal plane of the imaging lens, a second imaging device 14, and an image forming means 13 and picks up an image in a first imaging mode or a second imaging mode. When an image is picked up in the first imaging mode, light passing the imaging lens 11 is imaged on an imaging surface of the first imaging device 12. When an image is picked up in the second imaging mode, light passing the imaging lens 11 passes the first imaging device 12 and reaches an imaging surface of the second imaging device 13 by the image forming means 14. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种成像装置，其能够通过简单的配置和结构在例如基于光场摄影技术的成像模式和具有高分辨率的正常成像模式之间容易地切换。 解决方案：成像装置1包括成像透镜11，设置在成像透镜的焦平面上的第一成像装置12，第二成像装置14和图像形成装置13，并且拾取第一 成像模式或第二成像模式。 当在第一成像模式中拾取图像时，通过成像透镜11的光被成像在第一成像装置12的成像表面上。当以第二成像模式拾取图像时，通过成像透镜11的光通过 第一成像装置12并通过图像形成装置14到达第二成像装置13的成像表面。版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2006031773A
公开(公告)日：2006-02-02
申请号：JP2004206293
申请日：2004-07-13
Inventor： NAKAO TAKASHI , NISHI NORIAKI
CPC classification number: G11B7/13925 , G11B7/0903 , G11B7/0908 , G11B7/0945 , G11B7/126 , G11B7/131 , G11B19/127 , G11B2007/0006 , G11B2007/0013
Abstract: PROBLEM TO BE SOLVED: To speedily and stably start recording and reproducing processing. SOLUTION: In addition to a first photo-detection section for detecting reflection light from one information recording layer, a second photo detection section composed of one or more photo detection plane for detecting stray light from the other information recording layer is mounted on a photodetector, the number of information recording layers laminated on an optical disk is discriminated based on the intensity of stray light detected by the second photo detection section, and the control of an optical pickup is carried out before focus servo control in accordance with the discriminated number of information recording layers. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：快速稳定地开始记录和再现处理。 解决方案：除了用于检测来自一个信息记录层的反射光的第一光检测部分之外，还包括由用于检测来自另一信息记录层的杂散光的一个或多个光检测平面组成的第二光检测部分 基于由第二光检测部检测到的杂散光的强度来判别层叠在光盘上的信息记录层的数量，根据所识别的光检测器在聚焦伺服控制之前进行光拾取器的控制 信息记录层数。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005346839A
公开(公告)日：2005-12-15
申请号：JP2004165743
申请日：2004-06-03
Inventor： NAKAO TAKASHI , IIMURA SHINICHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an optical head device which can detect a stable focal error signal and a tracking error signal while it consists of simple components and it is easy for assembly and adjustment, low cost, small size and light weight. SOLUTION: The optical head device is provided with: a radiation light source; a condensing optical system which converges an emitted light beam on a micro spot of a recording medium; an aberration generation means which gives astigmatism to a light beam which is reflected and diffracted by a recording medium; and a photodetection means which receives a light beam which is given with the astigmatism by the aberration generation means. The aberration generation means is near an objective lens, and arranged so that it may have a focal line in the direction of about 45 degrees to a track on the recording medium and be fixed so that the relative position to the objective lens may not be moved. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种光头装置，其能够在由简单部件组成的同时检测稳定的焦点误差信号和跟踪误差信号，并且易于组装和调整，成本低，体积小，重量轻 。 解决方案：光头装置设有：辐射光源; 聚光光学系统，其将发射的光束会聚在记录介质的微点上; 像差产生装置，其对由记录介质反射和衍射的光束进行散光; 以及光电检测装置，其接收由像差产生装置给出的散光的光束。 像差产生装置靠近物镜，并且被布置为使得其可以在与记录介质上的轨道成约45度的方向上具有焦线，并且被固定，使得与物镜的相对位置不能移动 。 版权所有（C）2006，JPO＆NCIPI
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34.发明专利
公开(公告)号：JP2004310811A
公开(公告)日：2004-11-04
申请号：JP2003099327
申请日：2003-04-02
Inventor： NAKAO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To stably detect spherical aberration due to slippage of the thickness of a disk board and an optical system with high accuracy. SOLUTION: A diffraction optical element 13 which generates 0-th diffracted light and ±1st diffracted rays of light, a condenser lens 18, a cylindrical lens 19 and a photo detector 20 are provided as a return-path optical system in the optical system of an optical head 104. The spherical aberration including the thickness error of the protective layer of the surface of an optical disk 102, which is formed on the board surface the optical disk 102 is detected by detecting a reflective laser beam which is reflected on the board surface of the optical disk 102 and is diffracted with photodetecting elements 21, 22, 23 and calculating a sum signal. COPYRIGHT: (C)2005,JPO&NCIPI
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35.发明专利Method for detecting optical information, optical device for detecting optical information, and optical information recording/reproducing device 审中-公开用于检测光学信息的方法，用于检测光学信息的光学装置和光学信息记录/再现装置
公开(公告)号：JP2003006917A
公开(公告)日：2003-01-10
申请号：JP2001193898
申请日：2001-06-27
Inventor： NAKAO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To secure the symmetry of a spot of ±first-order diffracted light formed on a photodetecting element, to form the photodetecting element into a small size, and to achieve the reduction of the number of components, cost reduction and miniaturization. SOLUTION: In this device for detecting optical information, an optical element 32 in which a cylindrical concave lens part 321 with a curvature in a direction orthogonal to the track of an optical disk 24 is formed is stacked on the photodetecting element 30. Reflecting optical flux from the optical disk 24 is diffracted to ±first-order diffracted light and zero-order light by using a hologram element 28. The zero-order light is magnified in the direction orthogonal to the track of the optical disk 24 by passing it through the cylindrical concave lens part 321 and is made incident on the photodetecting element 30. The ± first-order diffracted light is directly transmitted through the optical element 32 as it is, made incident on the photodetecting element 30 and then a circular light spot is formed on the photodetecting element 30.
Abstract translation: 要解决的问题为了确保在受光元件上形成的±一级衍射光的点的对称性，将光检测元件形成为小尺寸，并且实现部件数量的减少，成本降低和小型化 。 解决方案：在这种用于检测光学信息的装置中，形成有在与光盘24的轨道正交的方向上具有曲率的圆柱形凹透镜部分321的光学元件32堆叠在光电检测元件30上。反射光通量 从光盘24通过使用全息元件28衍射为±一级衍射光和零级光。零级光通过使其通过光盘24的方向与光盘24的轨道正交的方向被放大 圆柱形凹透镜部321入射到受光元件30上。±一级衍射光直接透过光学元件32，入射到受光元件30上，然后形成圆形光点 光检测元件30。
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Patent Agency Ranking
公开(公告)号：JPH07301862A
公开(公告)日：1995-11-14
申请号：JP11462794
申请日：1994-04-28
Applicant: SONY CORP
Inventor： MANOU KIYOSHI , WATANABE TOSHIO , NAKAO TAKASHI
Abstract: PURPOSE:To propose a motion picture film traveling device capable of drastically reducing the reproducing error of a signal recorded in an area other than the picture recording area of motion picture film. CONSTITUTION:This device is provided with a reproducing part reproducing information optically recorded in the specified area of the motion picture film 41 based on light transmitted through the film 41 by irradiating the specified area of the film 41 with the light; and a shake preventing means 80 provided in the reproducing part and preventing the film 41 from being shaken in the thickness direction of the film 41 at the time of traveling by interposing an area between traveling synchornizing holes plurally formed in the longitudinal direction of the film 41 at the end in the width direction of the film 41 or only the area outside the traveling synchronizing hole of the film 41 from both sides of the film 41. Thus, the reproducing error of the signal recorded in the area other than the picture recording area of the motion picture film is drastically reduced by this device.
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公开(公告)号：JPH075797A
公开(公告)日：1995-01-10
申请号：JP14764793
申请日：1993-06-18
Applicant: SONY CORP
Inventor： NAKAO TAKASHI , OSUE TADASHI
IPC: G03H1/08
Abstract: PURPOSE:To provide the recording device capable of recording and forming many computer holograms and realizing long-time recording of animation pictures. CONSTITUTION:A wave front information recording section 1 records the wave front information of an object. A computer 2 computes and synthesizes the holograms from the wave front information of the object and outputs two-dimensional hologram information. An information order conversion and recording control section 4 converts the two-dimensional hologram information once stored in a buffer 3 into one-dimensional hologram information and subjects the one- dimensional hologram information to the control for recording. A scanning system section 5 converts the one-dimensional information into a laser beam in accordance with the timing of the synchronizing signal supplied from this information order conversion and recording control section 4 and records the one-dimensional hologram information on a tape-shaped optical recording medium 6.
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公开(公告)号：JPH05250720A
公开(公告)日：1993-09-28
申请号：JP5080892
申请日：1992-03-09
Applicant: SONY CORP
Inventor： OSUE TADASHI , KABAYA YOSHITERU , KUMAI SATOSHI , NARAHARA TATSUYA , NAKAO TAKASHI
Abstract: PURPOSE:To obtain an optical recorder/reproducer having simplified constitution and additionally provided with verify function. CONSTITUTION:Laser beam from a laser light source is modulated based on a data to produce a light beam for recording/reproducing the data onto an optical tape. A multi-laser light source emitting four light beams is employed as the laser light source wherein two unit laser light sources are used for data and arbitrary number, two in the embodiment, of remaining unit laser light sources are used for verify. Tracks Ta(T1a, T2a), Tb(T2a, T2b) formed by light beams Ba, Bb from the unit laser light sources for data are scanned by verifying light beams Bc, Bd thus performing read after write operation.
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公开(公告)号：JPH0581793A
公开(公告)日：1993-04-02
申请号：JP33398891
申请日：1991-11-22
Applicant: SONY CORP
Inventor： OKA MICHIO , NAKAO TAKASHI , AOKI NOBUYUKI , KUMAI YUJI
Abstract: PURPOSE:To realize a continuous reproduction for a long time and a high-speed access for plural disks with one pick-up. CONSTITUTION:An optical pick up device 11 is arranged on a position offset from the center of each disk and moved against disks CD1 to CDn placed on spindle motors SP1 to SPn, connecting data between each disk is stored in a memory 12 and continuously reproduced.
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公开(公告)号：JPH04167257A
公开(公告)日：1992-06-15
申请号：JP29293890
申请日：1990-10-30
Applicant: SONY CORP
Inventor： KABAYA YOSHITERU , NAKAO TAKASHI , OSUE TADASHI
IPC: G11B15/61
Abstract: PURPOSE:To increase recording capacity per recording track and to simplify a system configuration by guiding a tapelike recording medium by a guide member layer having a circular-arc-like inner periphery and provided externally opposed to a drum device. CONSTITUTION:A tapelike recording medium 12 is wound obliquely to a longitudinal direction on a drum device 13 for placing a recording or reproducing head, and transported along the drum surface 13A of the device 13 to record or reproduce information on the medium 12. Here, a guide member 21 having a circular-arc-shaped inner periphery 21A of a circular shape concentrically with the surface 13A is provided out of the device 13 to guide the transportation of the medium 12 is provided. As a result, even if a winding angle is large, feeding of the tape 12 is stabilized, and hence a recording track can be formed long obliquely to the tape 12. Thus, a recording capacity per one track of the recording track can be remarkably increased, and a system configuration can be entirely simplified.
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