Ultrasonic holographic imaging apparatus having an improved optical reconstruction system
US5179455A · kind A · utility
44Cited by
9References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1991 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Nov 22, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/901
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A preferred embodiment of the optical reconstruction assembly 50 in which the assembly 50 includes an assembly housing 52 that is a unitary unit for supporting a spatial filter 72 and a light source 74 in a single plane at the optical length "L" from a collimating lens 86. A liquid container 88 is mounted to the assembly housing 52 containing the holographic liquid 90. The light source 74 and the spatial filter 72 are spaced a fixed distance "A" which is less than the optical diameter "D" of the collimating lens 86.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.