Element for recording by thermal deformation
US4380769A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1980 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | Sep 5, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording element is disclosed which is capable of providing high-quality, high information-density recording by thermal deformation. The element comprises a support having thereon a layer of amorphous material. The amorphous material is capable of being thermally deformed to form depressions surrounded by sharply defined ridges when impinged upon by a high energy-density recording beam. The amorphous material comprises either a binder and a dye or a certain solvent-coatable dye, Iosol Red. The amorphous material must have an absorption factor, as herein defined, greater than 20. The depressions which are formed in the described material are such that they are readable by a reading beam which is not absorbed by the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.