Optical disc structure

Details Optical disc structure Optical disc structure

1981-04-30

1982-11-16

Hartary, Joseph W.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

346 76L, 369111, 369275, 358342, G01D 1534

Patent

active

043597505

ABSTRACT:
An optical disc of the type having a thermally deformable recording layer overlying a reflectively surfaced support features a crenelated disc support surface having grooves of predetermined depth and interleaved lands arranged in a spiral or concentric pattern. The recording layer's outer surface is nominally planar so that the differences in thickness between "over-land" and "over-groove" portions thereof impart high phase-shift contrast to light of a given read wavelength.

REFERENCES:
patent: 3943302 (1976-03-01), Johnston, Jr.
patent: 4006292 (1977-02-01), Schaefer
patent: 4161752 (1979-07-01), Basilico
patent: 4176377 (1979-11-01), Howe
patent: 4230915 (1980-10-01), Dil
patent: 4298975 (1981-11-01), Veen
"Optical Spectra", pp. 26, 28 and 29, Dec. 1978.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1438421