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1. 发明申请

US20090123876A1 Optical disc and method of producing the same 审中-公开
标题翻译：光盘及其制造方法
公开(公告)号：US20090123876A1
公开(公告)日：2009-05-14
申请号：US12317694
申请日：2008-12-23
申请人： Katsunori OHSHIMA , Kenji OISHI , Koji TSUJITA , Kenichi SHIMOMAI
发明人： Katsunori OHSHIMA , Kenji OISHI , Koji TSUJITA , Kenichi SHIMOMAI
IPC分类号： G03F7/20
CPC分类号： G11B7/24038 , G11B7/00745 , G11B7/26 , G11B7/261 , G11B7/263
摘要： An optical disk has a first and a second intermediate disk structure. The first structure includes at least a first transparent substrate, a first recording layer, and a first reflective layer. The first substrate has a first surface and a second surface. The first surface is a beam incidence surface for a laser beam in recording or reproduction of data. The second surface has a first concave section and a first convex section formed thereon. The first recording layer and the first reflective layer are stack in order on the second surface via the first concave and convex sections. The second structure includes at least a second substrate, a second reflective layer, and a second recording layer. The second substrate has a second concave section and a second convex section formed thereon. The second reflective layer and the second recording layer are stack in order on the second substrate via the second concave and convex sections. The first and second structures are bonded to each other so that the first reflective layer faces the second recording layer, the first concave section becomes closer to the beam incidence surface than the first convex section does, and the second concave section becomes closer to the beam incidence surface than the second convex section does. The first recording layer has a first data-storage area on the first concave section. The second recording layer has a second data-storage area on the second concave section. Each of the first and second convex sections has at least one pre-pit formed thereon. The pre-pit carries auxiliary information related to the data to be recorded or reproduced.
摘要翻译：光盘具有第一和第二中间盘结构。第一结构至少包括第一透明衬底，第一记录层和第一反射层。第一基板具有第一表面和第二表面。第一表面是用于激光束在记录或再现数据中的光束入射表面。第二表面具有形成在其上的第一凹部和第一凸部。第一记录层和第一反射层经由第一凹凸部分依次堆叠在第二表面上。第二结构包括至少第二衬底，第二反射层和第二记录层。第二基板具有形成在其上的第二凹部和第二凸部。第二反射层和第二记录层经由第二凹凸部分依次堆叠在第二基板上。第一和第二结构彼此接合，使得第一反射层面向第二记录层，第一凹部变得比第一凸部更靠近光束入射表面，并且第二凹部变得更接近光束入射面比第二凸部确定。第一记录层在第一凹部上具有第一数据存储区域。第二记录层在第二凹部上具有第二数据存储区域。第一和第二凸部中的每一个具有形成在其上的至少一个预凹坑。预制坑携带与要记录或再现的数据有关的辅助信息。

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