Optical storage media having visible logos

Details Optical storage media having visible logos Optical storage media having visible logos

1994-05-18

1996-04-23

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

428 642, 428 644, 428457, 428913, 428915, 43027012, 4304951, 430945, 283 82, 283 83, B32B 300

Patent

active

055101631

ABSTRACT:
An optical recording medium for storing data is provided having a visible logo on a read side of the medium for providing some anticounterfeiting protection. A logo coating for producing the visible logo is carded by the read-side of the substrate; the coating has a sufficiently high transmittance at a read or write wavelength such that light at the read or write wavelength passing through the logo coating toward the other side of the substrate and reflected back through the logo is substantially transmitted and unchanged by the coating so that the data can be detected as well the coating is sufficiently light absorbing in the visible spectrum such that there is a visible contrast between the recording coating and the logo coating. In another embodiment, the logo coating forms a portion of a reflective recording layer on the other non-read side of the substrate. In this case, the logo coating is visually distinguishable from the rest of the recording layer and is made of a different material. For example, the logo may be gold and the rest of the recording layer may be aluminum, or vice versa.

REFERENCES:
patent: 4626445 (1986-12-01), Dobrowolski
patent: 4705356 (1987-11-01), Berning
patent: 4838648 (1989-06-01), Phillips
patent: 5009486 (1991-04-01), Dobrowolski
patent: 5298305 (1994-03-01), Shinzuka

Affiliated with

Also associated with

Rating

Optical storage media having visible logos 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 storage media having visible logos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical storage media having visible logos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2306960