公开(公告)号：JP2008287851A

公开(公告)日：2008-11-27

申请号：JP2007289894

申请日：2007-11-07

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KAWAMURA MASANOBU ,  NEGORO KENICHI ,  KIKUCHI ATSUO ,  KINOSHITA KUNIO ,  ANDO NOBUHIKO ,  ISHII SATOSHI ,  KUBO TAKESHI ,  MOGI TAKAYUKI

IPC: G11B7/13

Abstract: PROBLEM TO BE SOLVED: To provide an optical disk device capable of suppressing influence of diffraction stray light and to provide an optical pickup. SOLUTION: In the optical disk device 1, reflection light beam L13 is diffracted by a division light guide part 47 as a brazed HOE (Holographic Optical Element) wherein sawtooth-shaped diffraction gratings are formed in a shape of a multiple stage and received in detection regions 32C and 32D receiving division light beams L17C and L17D to be first order light beams and in detection regions 32I and 32L provided further than the detection regions 32C and 32D when an extended line of an optical axis of a reflection light beam L12 is defined as a center and receiving reflection light beams L14 and L15 as second light receiving parts. In the division light guide part 47, grating angles of diffraction gratings provided in light guide regions 47C and 47D are set so that diffraction stray light UM to be a high-order diffraction light beam having high intensity is not received in the detection regions 32I and 32L to be the second light receiving parts while the division light beams L17C and L17D are received in the detection regions 32C and 32D. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制衍射杂散光的影响并提供光学拾取器的光盘装置。 解决方案：在光盘装置1中，反射光束L13被分割光导部分47衍射为钎焊的HOE（全息光学元件），其中锯齿形衍射光栅形成为多级形状， 在接收分割光束L17C和L17D的检测区域32C和32D中，当反射光束L12的光轴的延伸线被接收时，接收到分割光束L17C和L17D作为一级光束的检测区域32I和32L中，以及设置在检测区域32C和32D之外的检测区域32I和32L 被定义为中心并且接收作为第二光接收部分的反射光束L14和L15。 在分光导向部分47中，设置在导光区域47C和47D中的衍射光栅的光栅角度被设置为使得在检测区域32I中没有接收到具有高强度的高阶衍射光束的衍射杂散光UM 32L成为第二受光部，同时在检测区域32C和32D中接收分割光束L17C和L17D。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008010056A

公开(公告)日：2008-01-17

申请号：JP2006178357

申请日：2006-06-28

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KUBO TAKESHI

IPC: G11B7/09

Abstract: PROBLEM TO BE SOLVED: To effectively cancel particularly a portion of DC offset and to avoid deviation accompanying distortion of distribution of light in the length direction of a pattern when return light is incident obliquely with respect to the direction of the detection pattern of an optical detector, when obtaining a tracking error signal by a push and pull method in an optical disk device.
SOLUTION: When performing arithmetic processing of detected outputs of photodetecting parts B1, B2, C1 and C2 positioned at the center in a direction orthogonal to the tracking direction of an optical detector 51 for detecting the return light, the arithmetic processing of the detected outputs is performed in the state of cross multiplication to obtain the tracking error signal.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了有效地消除DC偏移的一部分，并且当返回光相对于检测图案的方向倾斜地入射时，避免伴随着在图案的长度方向上的光分布失真的偏差 当在光盘装置中通过推拉方式获得跟踪误差信号时，光检测器。 解决方案：当对与检测返回光的光检测器51的跟踪方向正交的方向上的中心的光检测部分B1，B2，C1和C2的检测输出进行运算处理时， 在交叉乘法的状态下执行检测输出以获得跟踪误差信号。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006080781A

公开(公告)日：2006-03-23

申请号：JP2004261444

申请日：2004-09-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KUBO TAKESHI

IPC: H04N5/76

Abstract: PROBLEM TO BE SOLVED: To easily control the photographing sequence even when recording still and moving picture files in different directories.
SOLUTION: Directories for recording still pictures and those for recording moving pictures are separately provided below top directors TOP/, and directory names are given them, including the same identifier (number 100). For recording images, the filename stored in both directories 100MSDCF/ and 100MNV01/ having the same director identifier is read out, and based on the filename, the filename is determined including the number showing the sequence recorded in the directory having the same director identifier. For recording still pictures, an extension for the still pictures is added to the determined filename to record them in the directory 100MSDCF/. When recording moving pictures, an extension for moving pictures is added to the determined filename to record them in the directory 100MNV01/.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：即使在不同目录中记录静止图像文件和运动图像文件时，也可以轻松控制拍摄顺序。

解决方案：用于录制静态图片的目录和用于录制动态图像的目录在顶层导演TOP /下分别提供，目录名称包含相同的标识符（数字100）。 对于记录图像，读出存储在具有相同导向器标识符的目录100MSDCF / 100MNV01中的文件夹，并且根据该文件名，确定文件名，该文件名包括表示具有相同导向器标识符的目录中记录的序列的号码。 为了录制静态图片，将静态图片的扩展名添加到确定的文件名中，以将其记录在目录100MSDCF /中。 当记录动态图像时，将用于运动图像的扩展名添加到确定的文件名中，以将其记录在目录100MNV01 /中。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006059417A

公开(公告)日：2006-03-02

申请号：JP2004238381

申请日：2004-08-18

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KUBO TAKESHI ,  YASUZAWA TAKUYA

IPC: G11B7/09 ,  G11B7/13

Abstract: PROBLEM TO BE SOLVED: To provide an optical disk device capable of performing tracking servo with a signal free from DC offset component by effectively preventing the DC offset component of a tracking error signal especially when a spot diameter is set to contact or overlap primary lights with each other in the center of a spot in acquisition of the tracking error signal by a push-pull method.
SOLUTION: On one side with respect to the center of a track direction in the center of a photodetector 51 for detecting a return light in a direction orthogonal to a track, light receiving parts B and C symmetrically with respect to the center of a direction orthogonal to the track are selected and arranged so as to receive a 0-order light only without touching the overlapped parts of the 0-order and primary diffracted lights contained in the return light.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种光盘装置，其能够通过有效地防止跟踪误差信号的DC偏移分量，特别是当光点直径设置为接触或重叠时，能够利用没有DC偏移分量的信号执行跟踪伺服 主灯在一个点的中心彼此相乘，通过推挽方法获取跟踪误差信号。 解决方案：在光检测器51的中心处的轨道方向的中心的一侧，用于检测与轨道正交的方向上的返回光，光接收部分B和C相对于轨道的中心对称地 选择并布置与轨道正交的方向，以便仅接收0级光，而不会接触包含在返回光中的0级和主衍射光的重叠部分。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2002334457A

公开(公告)日：2002-11-22

申请号：JP2001139803

申请日：2001-05-10

Applicant: SONY CORP

Inventor： SAKAMOTO SATOSHI ,  KUBO TAKESHI

IPC: G11B7/09

Abstract: PROBLEM TO BE SOLVED: To stably hold a movable part at a neutral position on a fixed part regardless of a temperature and the secular change. SOLUTION: The unit is provided with a dual shaft actuator 8 which is arranged on a moving base 7 and has a movable part 11 which moves in a focusing direction and a tracking direction based on the fixed part 10, a photosensor 16 which has a light emitting element 17 from which detection light is emitted, and a pair of light receiving elements 18 which receive the detection light emitted from the light emitting element and are located apart from each other in the tracking direction, and the unit is also provided with a shutter 15 which is provided on the dual axis actuator and has a shielding part 15b which shields the detection light emitted from the light emitting element of the photosensor, thus a transmission hole 15a is formed on the shutter in a way that the detection light emitted from the light emitting element of the photosensor passes and the width between both edges in the tracking direction of the hole is approximately the same as the distance between the pair of light receiving elements.

公开(公告)号：JPH1166585A

公开(公告)日：1999-03-09

申请号：JP22133397

申请日：1997-08-18

Applicant: SONY CORP

Inventor： KAWAMURA HIROSHI ,  KUBO TAKESHI ,  SUGAWARA YUTAKA

IPC: G11B7/09

Abstract: PROBLEM TO BE SOLVED: To enable high-speed reading by bonding via an adhesive layer a reinforcing member of a material of higher rigidity than a material of a bobbin to a lower face and/or an upper face in a focusing direction of the bobbin, and increasing a secondary resonant frequency of an actuator while restricting a thickness increase to a minimum. SOLUTION: A bobbin 22 of synthetic resin holds an objective lens 7 at the center, with having a focusing coil 2b wound at an outer circumferential side face, thus forming a main body of a movable part 2. The bobbin 22 is fixed to a free end of an elastic member which has one end fixed to a fixed part 3 and is constituted of a parallel spring or the like. The bobbin 22 is accordingly supported to be movable in a focusing direction subsequent to a bend of the elastic member. A reinforcing plate 2a of aluminum alloy or the like is bonded to a lower face of the bobbin 22 in the focusing direction via an adhesive layer 2e which is formed by applying thick a highly viscous adhesive to an elastic body such as rubber or the like.

公开(公告)号：JPH10172229A

公开(公告)日：1998-06-26

申请号：JP32672796

申请日：1996-12-06

Applicant: SONY CORP

Inventor： KUBO TAKESHI ,  KAWAMURA HIROSHI

IPC: G11B17/028 ,  G11B7/095 ,  G11B19/20

Abstract: PROBLEM TO BE SOLVED: To assure smooth tracking servo operation in a disc driver in which focus servo is conducted with a single axis actuator, the tracking servo and moving operation for internal and external circumferences of a recording disc are conducted with the same slide operation mechanism and this slide operation mechanism is of the slide bearing type. SOLUTION: A disc table 3 holding the center part of a recording disc holds a disc by deflecting the chucking center CC as the center of the recording disc in relation to the motor center CM which is the rotation center of the recording disc. A slide operation mechanism receives a friction force based on dynamic friction coefficient because it always moves reciprocally according to the amount of eccentricity between the motor center MC and chucking center CC during execution of the tracking servo.

公开(公告)号：JPH07121893A

公开(公告)日：1995-05-12

申请号：JP28579693

申请日：1993-10-21

Applicant: SONY CORP

Inventor： KUBO TAKESHI ,  MORIMOTO TADASHI ,  SUGAWARA YUTAKA

IPC: G11B7/09

Abstract: PURPOSE:To provide the biaxial actuator of optical pickup having good assembly workability and is improved in control performance to enable a cost reduction. CONSTITUTION:A bobbin 1 having an objective lens 2 and a printed coil 3 is supplied with electricity from a junction substrate 6 via four pieces of metallic leaf spring 4, by which the driving of the biaxial directions, focusing direction and tracking direction of the information tracks of the optical disk, is executed. The leaf springs 4 are temporarily and temporally fixed simply by fitting the springs into grooves 9a, 9b, etc., of the biaxial holder 9 of the junction substrate 6 and, therefore, the efficiency of the joining from above the leaf springs 4 temporally fixed into the grooves 9a, 9b, etc., is possible. Since this UV curing type gel has a high flow property before irradiation with UV rays, the easy pouring of the gel into the grooves 9a, b is possible. The gel is cured by the subsequent irradiation with UV rays to act as a damper material capable of fixing the leaf springs 4 with good accuracy. The vibration clamping property is thus improved.

公开(公告)号：JPH07105552A

公开(公告)日：1995-04-21

申请号：JP26552393

申请日：1993-09-30

Applicant: SONY CORP

Inventor： KUBO TAKESHI

IPC: G11B7/09

Abstract: PURPOSE:To miniaturize a device and to make driving efficiency excellent by contriving positional relation between the tracking coil or the focusing coil of a biaxial actuator and a magnet. CONSTITUTION:This actuator is provided with the tracking coil 24 wound round so that the directions of currents flowing to two opposed sides (the left side of the tracking coil and the right side of the tracking coil) 24l and 24r may be opposite, and the magnet 7 oppositely arranged to the tracking coil. Then, it is magnetized so that the polarity of the magnet may be different between parts opposed to two sides of the tracking coil (the left side front surface of the magnet and the right side front surface of the magnet) 7l and 7rf.

公开(公告)号：JPH0676499A

公开(公告)日：1994-03-18

申请号：JP24135792

申请日：1992-08-18

Applicant: SONY CORP

Inventor： KUBO TAKESHI ,  HAYATA YUTAKA

IPC: G11B21/02

Abstract: PURPOSE:To obviate the generation of static friction and to prevent the generation of a dead zone as a hinge member serves as a fulcrum at the time of turning of an arm by connecting the hub part of an arm and a fixing member by the hinge member. CONSTITUTION:One end of a suspension 8 is fixed to a mounting region 6 of the rigid arm 2 of a rotary actuator assembly 1. A slider 12 including a magnetic head is mounted via a flexer 10 to the other end of the suspension 8. A cylindrical hinge type arm holding member 18 is fixed to a base by a lock bolt 16A on the inner side of the hub part 4 of the arm 2. A holder 18 is so positioned that its center aligns to the central axis in the longitudinal direction of the assembly 1. The hub part 4 of the arm 2 and the holder 18 are connected by thin flat planar hinge members 20, 22. The end is fixed to the hub part 4 and the holder 18 in such a manner that the members 20, 22 exist in symmetrical positions by aligning these members to the central axis in the longitudinal direction of the assembly 1. Since the fulcrum for turning of the arm 2 is the hinge members 20, 22, the static friction does not arise and the dead zone does not exist either.