发明名称
摘要 The invention provides an improved optical recording medium or information record wherein a light sensitive layer (18) overlying a reflective layer (16) comprises a tracking layer (20) having one or more openings (22) extending therethrough and an absorber layer (24) overlying the tracking layer (20) and the openings (22) therein, thereby forming first (26) and second (28) regions of the light sensitive layer (18) having different reflectivities which can be used to control radial tracking, information being recorded in at least one of these regions. The method of the invention includes the steps of depositing a tracking layer onto a light reflective layer, forming one or more openings through the tracking layer, and depositing an absorber layer over the tracking layer and into the openings therein. <IMAGE>
申请公布号 FR2531798(B1) 申请公布日期 1987.04.30
申请号 FR19820014044 申请日期 1982.08.12
申请人 RCA CORP 发明人
分类号 G11C17/00;B41M5/26;G11B7/013;G11B7/24;G11B7/26;(IPC1-7):G11B7/24 主分类号 G11C17/00
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