Optical record carrier

Details Optical record carrier Optical record carrier

1993-01-11

1995-05-30

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428457, 428913, 3461351, 347264, B32B 300

Patent

active

054199379

ABSTRACT:
An optical record carrier with a substrate (1) having thereon a stack (3) of a reflection layer (4), an interference layer (5) and a phase-change recording-layer (6) in that order, the incident radiation being first incident on the reflection layer. Due to this structure of the stack a high contrast between the inscribed and uninscribed areas of the recording layer, and/or a high reflection, is obtained.

REFERENCES:
patent: 4984231 (1991-01-01), Yammoka
patent: 5147701 (1992-09-01), Furukawa et al.
patent: 5208088 (1993-05-01), Tominga et al.

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