Novel target for an ultrasonic wave camera and devices incorporating such a target
US3982068A · kind A · utility
1Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1975 |
| Grant date | Sep 21, 1976 |
| Priority date | — |
| Expiry date | Apr 15, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/495
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A target for ultrasonic camera comprising, applied to a substrate, a pyroelectric retina covered, in the present example, with a layer which absorbs incident ultrasonic waves; the temperature rise due to said absorption produces in the retina a charge relief read out by means which depend upon the selected device, for example an electron beam as in the case of the known pyroelectric targets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.