Optical information recording medium
US5348783A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | May 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information recording medium comprising a substrate, and a dielectric layer, a recording layer, a dielectric layer and a reflective layer which are laminated on the substrate in this order or a reflective layer, a dielectric layer, a recording layer and a dielectric layer which are laminated on the substrate in this order, wherein the recording layer comprises alternately laminated at least two optically active layers and at least one amorphous-acceleration layer; each of the optically active layers having a thickness of from 1 nm to 10 nm; the thickness d.sub.1 of each of the optically active layers and the thickness d.sub.2 of the amorphous-acceleration layer satisfying the equation: 1/3.ltoreq.d.sub.1 /d.sub.2 .ltoreq.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.