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US 8,148,046 B2Granted
Optical disk storage medium
AssigneeYamaha Corporation
InventorTamotsu Homma
Life of this patent
Estimating the term…
Abstract
The surface of a transparent layer provided on the uppermost layer of the label side of an optical disk is subjected to pearskin finish. As a result, a light from a reflection layer is prevented from directly entering a user who has viewed an image on the label side, and an antiglare phenomenon is prevented from occurring. This configuration enables good viewing.
Claims6
An optical disk with a label side comprising:
- a substrate;
- a reflection layer formed on the substrate;
- an image formation layer formed on the reflection layer;
- a transparent protective layer formed on the image formation layer, one side of the transparent protective layer having a pearskin finish with a structure that provides an antiglare effect against a reflection light from the reflection side,
- wherein the one side of the transparent protective layer is a label side surface of the optical disk, and
- wherein the optical disk further comprises a transparent cover layer formed on the transparent protective layer for reducing the antiglare effect of the pearskin finish.
3 more elements
An optical disk comprising:
- a substrate;
- a reflection layer formed on the substrate;
- an image formation layer formed on the reflection layer;
- and
- a transparent protective layer formed on the image formation layer,
- wherein an image is formed on the image formation layer by making a part of the image information layer transparent with a laser beam applied through the transparent protective layer,
- wherein one side of the transparent protective layer has a pearskin finish with a structure that provides an antiglare effect against a reflected light from the reflection side,
- wherein the one side of the transparent protective layer is a label side surface of the optical disk, and
- wherein the optical disk further comprises a transparent cover layer formed on the transparent protective layer for reducing the antiglare effect of the pearskin finish.
6 more elements
An optical disk comprising:
- a substrate;
- a reflection layer formed on the substrate;
- an image formation layer formed on the reflection layer;
- and
- a transparent protective layer formed on the image formation layer,
- wherein an image is formed on the image formation layer by making a part of the image information layer transparent with a laser beam applied through the transparent protective layer,
- wherein one side of the transparent protective layer has a pearskin finish with a structure that provides an antiglare effect against a reflected light from the reflection side,
- wherein the size of embossment of the pearskin finish is 10 to 100 μm.
5 more elements
Dependencies are inferred from the claim text.