Optical information recording medium

Details Optical information recording medium Optical information recording medium

1989-12-04

1991-09-17

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428500, 428 65, 428913, 369283, 369288, 346 76L, 3461351, B32B 302

Patent

active

050494287

ABSTRACT:
An erasable optical information recording medium has a transparent substrate, and a recording layer supported by the substrate. The recording layer includes a thin film of at least one polydiacetylene having side chains. The polydiacetylene is capable of undergoing a reversible planar-nonplanar transition of the main chain structure of the polydiacetylene due to a conformational change of the side chains produced by irradiation of light. When the recording layer is irradiated with light, the reversible planar-nonplanar transition occurs at the irradiated portions to cause a corresponding change of optical properties of the recording layer, thereby recording information thereinto and erasing information therefrom.

REFERENCES:
patent: 4873131 (1989-10-01), Kashima et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1916338