Thermal image generating device
US4769527A · kind A · utility
17Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1986 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Sep 4, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/302
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermal image producing device comprising an array of separately addressable thin-film resistors on a substrate with a heat sink at its near face and, so as to render the heat flux flowing through the substrate into the heat sink spatially and temporarily uniform, e.g. to avoid smearing, an array of compensating resistors, each beneath a respective one of the image producing resistors and separated therefrom by an insulating layer. Each compensating resistor is controlled so that, it and its associated image producing resistor together, produce a uniform total heat flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.