Thermal-optical converter
US4169661A · kind A · utility
23Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1977 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Apr 27, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0147
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermal-optical converter which comprises an aqueous solution containing a non-ionic compound with a functional group, a closed vessel for containing the solution and a transparent window fitted to at least one part of the closed vessel which allows the solution to be visible. Because the aqueous solution is transparent at low temperatures and opaque at elevated temperatures, the thermal-optical converter can effect reversible optical changes in accordance with changes in the temperature of the solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.