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    • 49. 发明授权
    • Optical disc molding apparatus
    • 光盘成型装置
    • US06302674B1
    • 2001-10-16
    • US09580629
    • 2000-05-30
    • Nobuyuki ArakawaYuji AkiyamaKen Minemura
    • Nobuyuki ArakawaYuji AkiyamaKen Minemura
    • B29D1700
    • B29C45/2632B29C45/263B29C2045/2648Y10S425/81Y10S425/812
    • An optical disc molding apparatus is able to mold an optical disc in which the occurrence of swollen portions of trumpet shape on the upper and lower surfaces of on the outer peripheral portion of a disc base may be minimized and in which a burr may be prevented from being produced on the outer peripheral portion of the disc base. In the optical disc molding apparatus having a ring (6) for molding an outer diameter portion of a disc base and holding a stamper (5) for transfer a signal pit, a holding surface of the ring (6) for holding the stamper (5) is formed as the concave and convex surfaces comprising a plurality of concentric land portions (21) and a plurality of concentric groove portions (22). The outer peripheral surface of the stamper (5) is held by each land portion (21) with a pressure.
    • 光盘成型装置能够模制光盘,其中在盘基的外周部分的上表面和下表面上出现小号形状的膨胀部分的发生可能被最小化,并且其中可以防止毛刺 在盘基的外周部分上产生。 在具有用于模制盘基部的外径部分并保持用于传送信号坑的压模(5)的环(6)的光盘模制装置中,用于保持压模(5)的环(6)的保持表面 )形成为包括多个同心陆部(21)和多个同心槽部(22)的凹凸表面。 压模(5)的外周面由压接部分(21)保持。