Colored digital versatile disks
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 5, 2002
Grant Date -
N/A
app pub date -
Aug 7, 2001
filing date -
Aug 7, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A colored optical disk and method for making the same are disclosed herein. The method comprises: disposing a first semi-reflective data layer on a first resin layer, wherein the first resin layer has light transmission at a desired reading wavelength of greater than about 60%; disposing a top side of a first fully reflective data layer on a side of said first semi-reflective data layer opposite said first resin layer, wherein reflectivity of the first fully reflective data layer and the first semi-reflective data layer is individually about 18 to about 30%, and wherein a difference in the reflectivity between the first fully reflective data layer and the first semi-reflective data layer is less than about 5%; disposing a separating layer between said first fully reflective data layer and said first semi-reflective data layer; disposing a second resin layer on a bottom side of said first fully reflective data layer; and adding color to at least a portion of the optical disk.
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