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    • 26. 发明专利
    • Objective lens drive device and disk device using the same
    • 目标镜头驱动装置和使用它的盘装置
    • JP2012048789A
    • 2012-03-08
    • JP2010190769
    • 2010-08-27
    • Hitachi Media Electoronics Co Ltd株式会社日立メディアエレクトロニクス
    • OCHI MANABUKIMURA KATSUHIKOYAMAGUCHI TAKAHIROYAMADA SOICHIRO
    • G11B7/09
    • G11B7/1374G11B7/0935G11B7/22
    • PROBLEM TO BE SOLVED: To provide an objective lens drive device for suppressing an objective lens from being tilted due to a change in environmental temperature even in a case in which a metal component is attached to a fixing part whose base material is resin, and to improve record and reproduction quality of a disk device using the same.SOLUTION: In an objective lens drive device, the above purpose is accomplished by: providing a metal member having a planar part in which its normal line is in a focusing direction, and having folded parts disposed at both ends of the planar part in a tracking direction and extending in the focusing direction; and connecting the metal member to a fixing part in the vicinity of the tip of the folded part. Further, the fixing part has an opening that penetrates in the focusing direction, and the metal member is preferably connected to the fixing part between two of support members positioned at both ends in the focusing direction in the opening.
    • 解决的问题:即使在将金属部件安装在基材为树脂的固定部的情况下,也能够提供用于抑制物镜因环境温度变化而倾斜的物镜驱动装置 并且提高使用其的盘装置的记录和再现质量。 解决方案:在物镜驱动装置中,上述目的是通过以下方式实现的:提供具有平面部分的金属构件,其中法线在其中聚焦方向,并且具有设置在平面部分两端的折叠部分 沿跟踪方向并沿聚焦方向延伸; 并将所述金属构件连接到所述折叠部的前端附近的固定部。 此外,固定部具有沿着聚焦方向穿透的开口,并且金属构件优选地连接到位于开口中的聚焦方向两端的两个支撑构件之间的固定部。 版权所有(C)2012,JPO&INPIT
    • 28. 发明专利
    • Lens for pickup device and pickup device for optical disk drive
    • 用于光盘驱动器的拾取器件和PICKUP器件的镜头
    • JP2011227940A
    • 2011-11-10
    • JP2010093710
    • 2010-04-15
    • Hoya CorpHoya株式会社
    • HANASHIRO SHUNGOIWABUCHI SATOSHI
    • G11B7/135G11B7/22
    • G11B7/1374G11B7/22
    • PROBLEM TO BE SOLVED: To provide a lens for a pickup device and a pickup device for an optical disk drive which stably hold the lens even when a gate part of the lens is placed in a projection of a holder and can prevent leakage of an adhesive for fixing the lens.SOLUTION: A lens 1 has a lens body with a first lens surface of a disk side and a second lens surface of a light source side, and a flange part 20 which projects in a flange shape outward in the radial direction of the lens body from the edge of the lens body. A gate part g of the lens is removed by cutting the flange part 20 along an outer peripheral cylindrical face of the flange part 20. When a radius of the lens 1 is R and a width of the gate part g is W, a cutting depth D of the flange part 20 satisfies the following formula.
    • 要解决的问题:为了提供用于拾取装置的透镜和用于光盘驱动器的拾取装置,即使当透镜的栅极部分被放置在保持器的突起中并且能够防止泄漏时,其也稳定地保持透镜 用于固定透镜的粘合剂。 解决方案:透镜1具有透镜体,其具有盘侧的第一透镜表面和光源侧的第二透镜表面,以及凸缘部20,凸缘部20沿着 透镜体从镜体的边缘。 通过沿着凸缘部20的外周圆柱面切割凸缘部20来除去透镜的门部g。当透镜1的半径为R并且栅极部g的宽度为W G ,凸缘部20的切削深度D满足下式。 版权所有(C)2012,JPO&INPIT
    • 30. 发明专利
    • Lens holder and optical pickup apparatus using the same
    • 使用相机的镜头支架和光学拾取装置
    • JP2011181132A
    • 2011-09-15
    • JP2010042998
    • 2010-02-26
    • Sanyo Electric Co LtdSanyo Optic Design Kk三洋オプテックデザイン株式会社三洋電機株式会社
    • HASHIMOTO MITSUHIROKAWASAKI RYOICHI
    • G11B7/12G11B7/09G11B7/135
    • G11B7/22G11B7/1374
    • PROBLEM TO BE SOLVED: To solve the following problems: an objective lens cannot stably be mounted on a lens holder, when the contact face between the lens holder and a flange part of the objective lens has variations in shape, it is troublesome to adjust coma aberration of the lens after mounting the objective lens, and the result of adjustment varies greatly. SOLUTION: The lens holder includes: a hole into which a condenser lens part of the objective lens is to be inserted; a peripheral part which surrounds the hole and on which the flange part of the objective lens is to be mounted; and three protrusions provided apart from each other in the peripheral part and higher than a main surface of the peripheral part. An optical pickup apparatus includes: the lens holder; and an objective lens supported with a condenser lens part inserted into the hole of the lens holder, and with the flange part in contact with the three protrusions. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决以下问题:为了解决以下问题:当透镜架与物镜的凸缘部分的接触面形状变化时,物镜不能稳定地安装在透镜架上,这是麻烦的 在安装物镜后调整镜头的彗形像差,调整结果差异很大。 解决方案:镜头保持器包括:物镜的聚光透镜部分将要插入的孔; 围绕所述孔并且物镜的凸缘部分将安装在其上的周边部分; 并且在周边部分彼此分开设置并且高于周边部分的主表面的三个突起。 一种光学拾取装置,包括:透镜架; 以及透镜夹持器的孔中插入聚光透镜部的物镜,并且凸缘部与三个突起接触。 版权所有(C)2011,JPO&INPIT