发明名称 Hubless optical disc having low radial runout and method of manufacture
摘要 A disc molding apparatus for forming an optical disc. The apparatus has a disc substrate cavity and a sprue mechanism in fluid communication with the cavity. A removable stamper located on one side of the disc substrate cavity forms data onto the disc substrate and the stamper is relasibly locked within the apparatus by an inner holder, which includes a locking mechanism. The apparatus also has a mechanism that forms a disc alignment mechanism in the disc substrate wherein the disc alignment mechanism is between the formatted data and a center of the disc substrate and the concentricity of the formatted data is specified relative to the disc alignment mechanism.
申请公布号 AU7120298(A) 申请公布日期 1998.11.11
申请号 AU19980071202 申请日期 1998.04.16
申请人 IMATION CORP. 发明人 CHAD R. SANDSTROM
分类号 B29C45/26;B29D17/00;G11B7/004;G11B7/095;G11B7/24;G11B7/26;G11B17/022;G11B23/00 主分类号 B29C45/26
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