公开(公告)号：US20080248254A1

公开(公告)日：2008-10-09

申请号：US12035981

申请日：2008-02-22

申请人： Yasuhito Hagiwara ,  Motomitsu Hagiwara ,  Takeshi Otsu ,  Akimasa Miyata ,  Kuniyuki Aihara

发明人： Yasuhito Hagiwara ,  Motomitsu Hagiwara ,  Takeshi Otsu ,  Akimasa Miyata ,  Kuniyuki Aihara

IPC分类号： B32B3/30 ,  B05D5/06

CPC分类号： G11B7/266 ,  B29L2017/005 ,  G11B7/24056 ,  Y10T428/2457

摘要： An optical information recording medium of which the commercial value is not reduced is provided, in which a light reflection layer, an optical recording layer, a first light transmission layer, and a second light transmission layer are provided in this order on one main surface of a disk-shaped substrate, and a method of manufacturing the optical information recording medium is provided. A light reflection layer, an optical recording layer, a protection layer, a first light transmission layer, and a second light transmission layer may be provided in this order on the one main surface of the disk-shaped substrate. The substrate has a first groove and a second groove approximately concentrically formed nearer an inner circumference of the substrate than an area in which the optical recording layer is to be provided. The first light transmission layer is provided such that an edge thereof is situated near an edge of an outer circumferential side of the first groove. The second light transmission layer is provided such that an edge thereof is situated near an edge of an outer circumferential side of the second groove. Therefore, each of the first and second light transmission layers does not meander at an inner circumferential edge thereof in a circumferential direction, leading to excellent quality in appearance.

摘要翻译： 提供了一种不减少商业价值的光学信息记录介质，其中光反射层，光记录层，第一透光层和第二光透射层依次设置在 光盘信息记录介质的制造方法。 光盘反射层，光记录层，保护层，第一透光层和第二透光层可以依次设置在盘状基板的一个主表面上。 基板具有与要设置光记录层的区域相比大致同心地形成在基板的内周的第一槽和第二槽。 第一透光层设置成使得其边缘位于第一凹槽的外周侧的边缘附近。 第二透光层设置成使得其边缘位于第二凹槽的外周侧的边缘附近。 因此，第一透光层和第二透光层中的每一个在圆周方向的内周边缘处不弯曲，从而具有优异的外观品质。