发明名称 |
Image forming and data storage |
摘要 |
A method of forming an image and a radiation-sensitive medium suitable for carrying an image is disclosed. The medium comprises a substrate having a surface structure comprising grooves with a depth of 20 to 100 nanometers. At or close to the surface structure there is a layer of radiation-responsive material which is such that irradiation of selected parts of the structure with radiation of a predetermined polarization causes radiation to be absorbed at the irradiated parts of the surface so that corresponding areas of the radiation-responsive layer are affected in a way which makes such areas distinguishable from the remaining, non-irradiated areas of the radiation-responsive layer. An image and/or data may be stored in such a medium in analogue, digital or pictorial form, or in a combination of any two or all three of these forms. The invention also provides primary and secondary pre-formed data carrying media, the secondary media being replicated from the primary media. A primary pre-formed data carrying medium is formed by selectively irradiating a radiation-sensitive medium of the invention so as to form an image representative of a predetermined amount of data.
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申请公布号 |
US4786585(A) |
申请公布日期 |
1988.11.22 |
申请号 |
US19860862805 |
申请日期 |
1986.05.13 |
申请人 |
PLASMON DATA SYSTEMS, INCORPORATED |
发明人 |
HUMBERSTONE, VICTOR C.;PETTIGREW, ROBERT M. |
分类号 |
G11B7/24;G11B7/241;G11B11/10;G11B11/105;G11C13/06;(IPC1-7):G01D9/00;G03C1/72 |
主分类号 |
G11B7/24 |
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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