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1. 发明授权

US5099469A Process for manufacturing an optical disc master 失效
标题翻译：制造光盘大师的过程
公开(公告)号：US5099469A
公开(公告)日：1992-03-24
申请号：US482033
申请日：1990-02-20
申请人： Robert B. Dobbin , David G. Loeppky , James R. Norton , Bruce E. Del Mar
发明人： Robert B. Dobbin , David G. Loeppky , James R. Norton , Bruce E. Del Mar
IPC分类号： G11B7/26
CPC分类号： G11B7/26
摘要： The invention discloses a simplified four step process for making an optical disc master or alternatively a WORM disc by first making or obtaining a transparent polymer disc with a tracking groove of desired geometry molded therein, then spin coating an optically active lamina on the grooved side of the disc, then recording data on said polymer disc with groove controlled and tracked laser means by ablating active lamina, forming pits, the shape of which is determined by the groove geometry and finally depositing a conductive and reflective lamina over the pitted active lamina. To change the OD master to an OD WORM, a protective cover is added to the electrically conductive and optically reflective lamina.

2. 再颁专利

USRE34506E Product and process for manufacturing an optical disc master 失效
标题翻译：用于制造光盘主机的产品和过程
公开(公告)号：USRE34506E
公开(公告)日：1994-01-11
申请号：US965155
申请日：1992-10-22
申请人： Robert B. Dobbin , David G. Loeppky , James R. Norton , Bruce E. Del Mar
发明人： Robert B. Dobbin , David G. Loeppky , James R. Norton , Bruce E. Del Mar
IPC分类号： G11B7/26 , G11B7/00
CPC分类号： G11B7/26
摘要： The invention discloses a simplified four step process for making an optical disc master or alternatively a WORM disc by first making or obtaining a transparent polymer disc with a tracking groove of desired geometry molded therein, then spin coating an optically active lamina on the grooved side of the disc, then recording data on said polymer disc with groove controlled and tracked laser means by ablating active lamina, forming pits, the shape of which is determined by the groove geometry and finally depositing a conductive and reflective lamina over the pitted active lamina. To change the OD master to an OD WORM, a protective cover is added to the electrically conductive and optically reflective lamina.
摘要翻译：本发明公开了一种通过首先制造或获得具有模制在其中的所需几何形状的跟踪槽的透明聚合物盘来制造光盘主盘或替代地WORM盘的简化四步骤过程，然后在光刻主体盘，然后通过烧蚀活性层，形成凹坑，其形状由凹槽几何形状确定并最终在凹陷活性层上沉积导电和反射层，在带有凹槽控制和跟踪的激光装置的所述聚合物盘上记录数据。为了将OD主机更改为OD WORM，将保护盖添加到导电和光学反射层。

3. 发明授权

US5283159A Optical recording medium and method for improved pit geometry and increased laser tracking 失效
标题翻译：光记录介质和改进凹坑几何形状和增加激光跟踪的方法
公开(公告)号：US5283159A
公开(公告)日：1994-02-01
申请号：US13259
申请日：1993-02-03
申请人： James R. Norton , David G. Loeppky , Robert B. Dobbin , Robert C. Beauchamp , Daniel H. Burkett
发明人： James R. Norton , David G. Loeppky , Robert B. Dobbin , Robert C. Beauchamp , Daniel H. Burkett
IPC分类号： G11B7/0045 , G11B7/013 , G11B7/243 , G11B7/246 , G11B7/258 , G11B7/26 , G11B7/24
CPC分类号： G11B7/243 , G11B7/00451 , G11B7/24085 , G11B7/258 , G11B7/261 , G11B2007/24314 , G11B2007/24316 , G11B7/245 , G11B7/246 , G11B7/2533 , G11B7/2534 , Y10S430/146 , Y10S430/165
摘要： The invention discloses a method and an apparatus for creating optical disc recordings by forming pits having ideal shapes. These ideally shaped pits are improvements in the technology of disc mastering, due to the manufacturing and data playback advantages that are inherent in the ideally shaped pits. A disc substrate has a very thin partially reflective layer applied to the surface of the optical disc upon which data will be recorded. The substance used to make the partially reflective layer is normally considered opaque in more commonly occurring thicknesses. However, the partially reflective layer, is created to be so extremely thin that it becomes partially optically transparent. The partially reflective layer then has spin coated, thereon, an optically active lamina to enable the recording of data on the disc by laser means in the form of pits. The pits are created by having a laser light focusing on both the partially reflective layer and the optically active lamina, both which react to the irradiation causing a pit to be formed. The resulting pit is without a raised berm area surrounding the pit, in what is considered to be an ideal shape for a pit. An OD master can be created by finally depositing a conductive and reflective lamina over the pitted active lamina. The invention is also useful in providing increased laser tracking. Here, the partially reflective layer provides increased signal to noise ratio, enhancing laser tracking in both the recording and playback modes.
摘要翻译：本发明公开了一种通过形成具有理想形状的凹坑来产生光盘记录的方法和装置。这些理想形状的凹坑是盘式母盘技术的改进，因为在理想形状的凹坑中固有的制造和数据回放优点。盘基片具有非常薄的部分反射层，其被施加到将在其上记录数据的光盘的表面。用于制造部分反射层的物质通常在更普遍发生的厚度中被认为是不透明的。然而，部分反射层被制造成非常薄，使得它变得部分光学透明。然后，部分反射层在其上旋转涂覆光学活性层，以使得能够以凹坑的形式通过激光装置在盘上记录数据。通过使聚焦在部分反射层和光学活性层两者上的激光彼此反应而产生凹坑，这两者都与形成凹坑的照射反应。所产生的坑在坑周围没有凸起的护堤区域，被认为是坑的理想形状。可以通过在凹陷的活性层上最后沉积导电和反射层板来创建OD主机。本发明还可用于提供增加的激光跟踪。这里，部分反射层提供增加的信噪比，增强记录和重放模式中的激光跟踪。

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