Recording medium
AssigneeMitsubishi Kagaku Media Co., Ltd.
InventorsKenjirou Kiyono, Osamu Shouji
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Abstract
Provided is an optical recording medium comprising a substrate and a reflective layer, a first dielectric layer, a recording layer, a second dielectric layer and a light-transmission layer formed in this order on the substrate. The recording layer is decomposable by heat at a time of recording to achieve recording of the optical recording medium, and the optical recording medium further comprises a third dielectric layer between the second dielectric layer and the light-transmission layer.
Claims17
An optical recording medium comprising a substrate and a reflective layer, a first dielectric layer, a recording layer, a second dielectric layer and a light-transmission layer formed in this order on the substrate,
- wherein the recording layer is decomposable by heat at a time of recording to achieve recording of the optical recording medium,
- wherein the optical recording medium further comprises a third dielectric layer between the second dielectric layer and the light-transmission layer, and
- wherein the recording layer comprises a material A that decomposes at an arrival temperature of the recording layer by heat at a time of recording;
- and a material B that undergoes a chemical reaction at the arrival temperature of the recording layer by heat at the time of recording,
- wherein the third dielectric layer has a hardness greater than the hardness of the second dielectric layer.
Dependencies are inferred from the claim text.