Colored digital versatile disks
US6623827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Sep 18, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A colored optical disk and method for making the same are disclosed herein. In one embodiment, the optical disk comprises: a first fully reflective data layer, a first separating layer disposed on a top side of the first fully reflective data layer, a first semi-reflective data layer disposed on a side of the separating layer opposite the first fully reflective data layer, a first resin layer disposed on an upper side the first semi-reflective data layer opposite the separating layer, a second resin layer disposed on a bottom side of said first fully reflective data layer, wherein a reflectivity of the first fully reflective data layer and the first semi-reflective data layer is individually about 18 to about 30%, wherein a difference in the reflectivity between the first fully reflective data layer and the first semi-reflective data layer is less than or equal to about 5%; and wherein at least a portion of the optical disk comprises colorant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.