Optical recording element with ROM and recording regions
AssigneeU.S. Philips Corporation
InventorGerrit D. Westerhout
Life of this patent
Estimating the term…
Abstract
An optical recording element comprising a transparent supporting plate, a dye-containing recording layer and a first reflective layer which is applied to a recording layer. The element has a ROM (read only memory) region containing information which can be read optically and a RC (recording) region in which information can be recorded and read optically, the recording layer extending over the ROM and RC regions and a second reflective layer being present in the ROM region between the recording layer and the substrate.
Claims2
An optical recording element having a ROM (read only memory) region containing information which can be read optically and a RC (recording) region in which information can be recorded and read optically, comprising a transparent supporting plate, a first reflective layer disposed over said ROM and RC regions, and a dye-containing recording layer disposed in said RC region between said substrate and said first reflecting layer,
- characterized in that said recording layer extends over said ROM region, and
- a second reflective layer is disposed over said ROM region between said recording layer and said substrate.
Dependencies are inferred from the claim text.