发明名称 |
COATED MEDIA FOR OPTICAL RECORDING AND METHOD OF FABRICATING |
摘要 |
An optical data storage system employing a data-modulated writing laser beam and a nonerasing reading laser beam of predetermined wavelength and optical media for such systems characterized by multiple layers whose optical characteristics and thickness are chosen to accomodate a prescribed writing and reading energy and wavelength and so provide an "anti-reflection" condition for unrecorded portions of the medium and a relatively higher reflectivity for recorded portions. A preferred optical medium includes a highly reflective aluminum layer, a relatively transparent polymer spacer layer overlying the reflective layer, and an optical absorber (recording) layer overlying the spacer layer. Overcoating structure is specified in some detail; e.g., as a "soft pad" layer (e.g., fluoropolymer) on the absorber, with a "Hard" layer (e.g., radiation-cured acrylic) laid over the "soft pad" as an outer protective overcoat. Also, the "spacer" may be rendered as such a " soft pad". |
申请公布号 |
WO8402220(A1) |
申请公布日期 |
1984.06.07 |
申请号 |
WO1983US01868 |
申请日期 |
1983.11.29 |
申请人 |
BURROUGHS CORPORATION |
发明人 |
MAYER, THOMAS;RANCOURT, JAMES, D.;BOLING, NORMAN, L. |
分类号 |
G01D15/34;G11B7/243;(IPC1-7):11B7/24;01D15/34 |
主分类号 |
G01D15/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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