Optical recording element with ROM and recording regions

Details Optical recording element with ROM and recording regions Optical recording element with ROM and recording regions

1991-09-11

1993-04-27

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428913, 430270, 430945, 369280, 369282, 346 76L, 3461351, B32B 300

Patent

active

052060632

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.

REFERENCES:
patent: 4940618 (1990-07-01), Hamada
patent: 4950520 (1990-08-01), Imai

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