Rewritable optical information medium

Details Rewritable optical information medium Rewritable optical information medium

1999-06-14

2000-12-12

Evans, Elizabeth

Stock material or miscellaneous articles

Circular sheet or circular blank

428 644, 428 645, 428 646, 428457, 428913, 43027013, 4304951, 430945, 369283, 369288, B32B 302

Patent

active

06159573&

ABSTRACT:
A description is given of a rewritable optical information medium having an IPIAIM stack comprising a phase-change recording layer sandwiched between two dielectric layers, a light-absorbing layer of a material like Si, Ge, Mo, or W, a third dielectric layer, and a metal mirror layer. The light-absorbing layer reduces the difference in light absorption between the amorphous state and the crystalline state to a minimum, thus reducing the recording mark distortion. The presence of the light-absorbing layer in this position ensures that the optical phase difference between the amorphous and the crystalline state is almost zero, making the medium suitable for land-groove recording.

REFERENCES:
patent: 5652036 (1997-07-01), Kobayashi
patent: 5719006 (1998-02-01), Ohkubo
patent: 5876822 (1999-03-01), Zhou et al.
patent: 5935672 (2000-07-01), Zhou
patent: 5965229 (1999-10-01), Zhou
patent: 6040066 (2000-03-01), Zhou
patent: 6087067 (2000-07-01), Kato

Affiliated with

Also associated with

Rating

Rewritable optical information medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rewritable optical information medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rewritable optical information medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-214398