| 发明名称 |
DATA CARRIER FOR OPTICAL READ-OUT |
| 摘要 |
<p>The present invention relates to data carriers intended for optical read out. The data carrier in accordance with the invention comprises : a first transparent material at the surface of which the information is recorded in the form of an embossed pattern ; a partially transparent metal layer covers said embossed pattern and a second, thick transparent material is deposited upon the metal layer for protection purposes.</p> |
| 申请公布号 |
CA1065983(A) |
申请公布日期 |
1979.11.06 |
| 申请号 |
CA19750238016 |
申请日期 |
1975.10.17 |
| 申请人 |
THOMSON-BRANDT |
发明人 |
CARRE, BERNARD;SPITZ, ERICH;PUECH, CLAUDE |
| 分类号 |
H04N5/85;B41M5/26;G06K19/06;G11B7/24;G11B7/254;G11B7/257;(IPC1-7):11B7/24;04N5/76;06K19/06 |
主分类号 |
H04N5/85 |
| 代理机构 |
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代理人 |
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