发明名称 |
Internal structure holography |
摘要 |
A method and apparatus are provided for the holographic examination of the internal features of cavities and passageways of a structure. The apparatus employs laser beam sources positioned within the structure to form a laser reference beam and laser object beam which combine in a holographic recordation means to form a hologram of the internal features of the structure, or under certain circumstances a holographic interferogram of the selected features is formed.
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申请公布号 |
US4643514(A) |
申请公布日期 |
1987.02.17 |
申请号 |
US19830518440 |
申请日期 |
1983.07.29 |
申请人 |
NORTHWESTERN UNIVERSITY |
发明人 |
RAVIV, GIL;MARHIC, MICHEL E.;EPSTEIN, MAX |
分类号 |
G03H1/04;(IPC1-7):G03H1/04;G01B9/021;A61B1/06 |
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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