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US 2007/0177490 A1Published application
Read-once record medium
OwnerWellen Shaminventor
Life of this patent
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Abstract
The present invention relates to a read-once record medium that comprises a data substrate, a sensitive layer; a reflective layer, an adhesive layer and a transparent substrate; thereby, the structure of the sensitive layer or the data substrate will be changed when laser beams with specific power emitted from an optical storage device pass through the data substrate and focus on the sensitive layer, and the laser beams will be reflected by the sensitive layer and can not be recognized by the optical storage device.
Claims20
A read-once record medium, comprising:
- a data substrate, having a plurality of pre-record data;
- a sensitive layer, disposed above said data substrate;
- a reflective layer, disposed above said sensitive layer;
- an adhesive layer, disposed above said reflective layer;
- and
- a transparent substrate, disposed above said adhesive layer;
- thereby, the structure of said sensitive layer or said data substrate will be changed when laser beams with specific power emitted from an optical storage device pass through said data substrate and focus on said sensitive layer, and said laser beams will be reflected by said sensitive layer and can not be recognized by said optical storage device.
4 more elements
A read-once record medium, comprising:
- a data substrate, having a plurality of grooves for recording data;
- a sensitive layer, disposed above said data substrate;
- a reflective layer, disposed above said sensitive layer;
- an adhesive layer, disposed above said reflective layer;
- and
- a transparent substrate, disposed above said adhesive layer;
- thereby, the structure of said sensitive layer or said data substrate will be changed when laser beams with specific power emitted from an optical storage device pass through said data substrate and focus on said sensitive layer, and said laser beams will be reflected by said sensitive layer and can not be recognized by said optical storage device.
4 more elements
Dependencies are inferred from the claim text.