| 发明名称 |
HOLOGRAPHIC NON-ISOTROPIC DIFFUSING SCREEN |
| 摘要 |
A method and apparatus for constructing a holographic non-isotropic diffusing screen to produce a diffuse light beam of predetermined directionality having use in micro-holographic recording and reading apparatus.
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| 申请公布号 |
US3708217(A) |
申请公布日期 |
1973.01.02 |
| 申请号 |
USD3708217 |
申请日期 |
1971.04.28 |
| 申请人 |
SPERRY RAND CORP,US |
发明人 |
MCMAHON D,US |
| 分类号 |
G02B5/32;G03H1/26;(IPC1-7):G02B27/22 |
主分类号 |
G02B5/32 |
| 代理机构 |
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