发明公开
EP0138026A3 Phase retardation element and prism for use in an optical data storage system
失效
在光学数据存储系统中使用的相位延迟元件和伪指令
- 专利标题: Phase retardation element and prism for use in an optical data storage system
- 专利标题(中): 在光学数据存储系统中使用的相位延迟元件和伪指令
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申请号: EP84110537申请日: 1984-09-05
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公开(公告)号: EP0138026A3公开(公告)日: 1987-08-19
- 发明人: Baasch, Holger Johan , Goodman, Douglas Seymore , Luecke, Francis Stephen , Soderstrom, Ronald Lee , Spiller, Eberhard Adolph
- 申请人: International Business Machines Corporation
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 优先权: US541604 19831013
- 主分类号: G02B05/30
- IPC分类号: G02B05/30
摘要:
A phase retardation element (17), for use in an optical data storage system, which provides a 90° phase difference between two perpendicular polarized components of an incident wave with a single internal reflection from a surface coatec with a thin film of dielectric or metal material.
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