Multiple exposure holographic interferometer method
US3934461A · kind A · utility
6Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Sep 16, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B9/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and method wherein a photographic plate is doubly exposed by pulsed laser illumination to record successive instants in the history of an object under consideration. The doubly exposed plate is then developed and the photograph or hologram is used to reproduce the object in full three-dimensional detail including subtle changes in the object in the form of interference fringes where the hologram is illuminated with continuous laser illumination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.