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    • 2. 发明专利
    • Recording medium and recording/reproduction device and method
    • 记录介质和记录/再现设备和方法
    • JP2014099224A
    • 2014-05-29
    • JP2012250267
    • 2012-11-14
    • Pioneer Electronic Corpパイオニア株式会社Pioneer Digital Design And Manufacturing Corpパイオニアデジタルデザインアンドマニュファクチャリング株式会社
    • TAKAHASHI KAZUO
    • G11B7/007G11B7/09
    • PROBLEM TO BE SOLVED: To provide a recording medium including a guide layer formed with a suitable mark group and a recording/reproduction device and method for performing at least one of a recording operation and a reproducing operation to the recording medium.SOLUTION: A recording medium (10) includes: a guide layer (12) and a plurality of recording layers (13), and the guide layer is divided into a plurality of area portions (A1, A2) by discontinuous parts (DA1, DA2), and a guide track formed in one area (A1) is deviated along a radial direction only by 1/4 of a track pitch (Tp) with respect to a guide track formed in the other area portion (A2), and a mark group (MG) is formed at a position deviated only by a predetermined deviation amount along the radial direction from the track center of the guide track, and the predetermined deviation amount is set to 1/8 of the track pitch at a position adjacent to the discontinuous parts, and becomes smaller according as it is away from the discontinuous parts.
    • 要解决的问题:提供一种包括形成有适当标记组的引导层和用于对记录介质执行记录操作和再现操作中的至少一个的记录/再现装置和方法的记录介质。解决方案:记录 介质(10)包括:引导层(12)和多个记录层(13),并且引导层通过不连续部分(DA1,DA2)分成多个区域部分(A1,A2),并且 形成在一个区域(A1)中的导轨相对于形成在另一个区域部分(A2)中的导轨,沿着径向方向仅偏离轨道间距(Tp)的1/4,并且标记组(MG) 形成在从导轨的轨道中心沿着径向方向偏离预定偏差量的位置处,并且将预定偏差量设置在与不连续部分相邻的位置处的轨道间距的1/8,并且 根据它远离d而变小 是连续的部分。
    • 4. 发明专利
    • Lens driving device, optical pickup device, and disk device
    • 镜头驱动装置,光学拾取装置和盘装置
    • JP2013020679A
    • 2013-01-31
    • JP2011154703
    • 2011-07-13
    • Pioneer Digital Design And Manufacturing Corpパイオニアデジタルデザインアンドマニュファクチャリング株式会社
    • OHIRA YASUHIROEGAWA TOMOHIROWATANABE HIROYUKITAKADA YOSHIYUKIONODERA KATSUHIRO
    • G11B7/12G11B7/09
    • PROBLEM TO BE SOLVED: To provide a lens driving device which prevents an optical recording medium from colliding with an object lens at recording and reproducing and also prevents the optical recording medium from colliding with a lens protector member at insertion.SOLUTION: A lens driving device includes a lens holding part 20 which is mounted to an actuator base through suspension wires, and an object lens which is provided in the lens holding part 20 and disposed opposite to a recording surface of an optical recording medium D. An inclination 202B, which guides at insertion of the optical recording medium D on the upstream side in an insertion direction In of the optical recording medium D, is provided around the object lens in the lens holding part 20. The lens holding part 20 is provided with a lens protector member 40 which prevents the optical recording medium D from colliding with the object lens. The lens protector member 40 has a collision buffering material 402 which projects from a base 401 and whose tip part forms an inclined plane. A tip end position CT of the inclination 202B is lower than a tip end position PT of the collision buffering material 402, and located closer to the tip side than a boundary K between the base 401 and the collision buffering material 402.
    • 要解决的问题:提供一种防止光记录介质在记录和再现时与物镜碰撞的透镜驱动装置,并且还防止光学记录介质在插入时与透镜保护构件碰撞。 解决方案:透镜驱动装置包括通过悬挂线安装到致动器基座的透镜保持部分20和设置在透镜保持部分20中并与光记录装置的记录表面相对设置的物镜 在光学记录介质D的插入方向In的上游侧插入光学记录介质D时的倾斜度202B设置在透镜保持部20中的物镜周围。透镜保持部 20设置有防止光记录介质D与物镜碰撞的透镜保护构件40。 透镜保护构件40具有从基座401突出并且其尖端部分形成倾斜平面的碰撞缓冲材料402。 倾斜部202B的前端位置CT低于碰撞缓冲材料402的前端位置PT,位于比基座401与碰撞缓冲材料402之间的边界K更靠近前端侧。 (C)2013,JPO&INPIT
    • 8. 发明专利
    • Optical pickup
    • OPTICAL PICKUP
    • JP2012018740A
    • 2012-01-26
    • JP2010156816
    • 2010-07-09
    • Pioneer Digital Design And Manufacturing Corpパイオニアデジタルデザインアンドマニュファクチャリング株式会社
    • OKAMOTO MASAHIRO
    • G11B7/135G02B5/18
    • PROBLEM TO BE SOLVED: To achieve the downsizing of an optical pickup and to suppress the influence due to stray light by using a relatively simple method.SOLUTION: An optical pickup (1) has a light receiving element (109) including a first light receiving part (9a) which receives zero-order signal light, which is zero-order diffractive light of signal light, which is reflective light from a recording layer to which recording or reproduction is to be performed of a plurality of recording layers (21) of an optical disk of light beam emitted from light sources (LD1, LD2), second light receiving parts (9b, 9c) which receive a part of primary signal light, which is primary diffractive light of the signal light, and outputs DC signal, and third light receiving parts (9d, 9e) which receive the other parts of the primary signal light and outputs DC-signal. The second light receiving parts are arranged at such a position that no interference of a part of the primary signal light and zero-order stray light, which is zero-order diffractive light of stray light, occurs on the light receiving element. The third light receiving parts are arranged at such a position that no interference of the other parts of the primary signal light and zero-order stray light occurs on the light receiving element.
    • 要解决的问题:为了实现光学拾取器的小型化并且通过使用相对简单的方法来抑制由于杂散光引起的影响。 光拾取器(1)具有光接收元件(109),该光接收元件(109)包括第一光接收部(9a),该第一光接收部(9a)接收零级信号光,其是信号光的零级衍射光,其为反射 来自从光源(LD1,LD2)发射的光束的光盘的多个记录层(21)进行记录或再现的记录层的光,第二光接收部分(9b,9c) 接收作为信号光的初级衍射光的一部分主信号光,并输出DC信号,以及接收主信号光的其它部分并输出DC信号的第三光接收部分(9d,9e)。 第二光接收部被配置在光接收元件上不发生作为杂散光的零级衍射光的一次信号光和零级杂散光的一部分的干扰的位置。 第三光接收部件被布置在光接收元件上不发生主信号光的其他部分和零级杂散光的干扰的位置。 版权所有(C)2012,JPO&INPIT