Optical recording medium
US5422226A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1993 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Dec 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium comprises a transparent substrate, a recording layer containing at least one organic dye overlying the substrate, a metallic layer directly contacting and overlying the recording layer, a protective layer comprising at least one layer directly contacting and overlying the metal layer, a layered print portion comprising at least one layer directly contacting and overlying the protective layer, and said protective layer and said print portion satisfying the following relationship: EQU .SIGMA.AiBi+.SIGMA.CjDj<3 (.mu.m) (1) where Ai (.mu.m) is a thickness and Bi is a curing shrinkage rate of the i-th protective layer, respectively, where i is an integer of 1 or more, Cj (.mu.m) is a thickness and Dj is a curing shrinkage rate of the j-th print portion layer, respectively, where J is an integer of 1 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.