发明名称 |
Holographic article and process for making same |
摘要 |
A holographic article preferably including a plurality of superimposed and/or spatially adjacent linear gratings, each of which has a spatial frequency different from that of the other gratings. The articles are formed as a result of an interference fringe field produced by two mutually coherent light beams impinging onto an assembly of a two-dimensional transparency and a photosensitive medium.
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申请公布号 |
US4094575(A) |
申请公布日期 |
1978.06.13 |
申请号 |
US19760682090 |
申请日期 |
1976.04.30 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
KELLIE, TRUMAN F. |
分类号 |
G03H1/04;B42D15/10;G02B5/18;G03H1/24;G03H1/28;(IPC1-7):G02B27/00 |
主分类号 |
G03H1/04 |
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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