Stretched-film optical recording disc

Details Stretched-film optical recording disc Stretched-film optical recording disc

1981-03-05

1982-12-21

Rubinson, G. Z.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

346137, G01D 1534

Patent

active

043652573

ABSTRACT:
Optical recording disc having a rigid, dimensionally-stable support which keeps a plastic film taut and flat so that an optically-recordable coating on the plastic film resists the dimensional changes and warping which it otherwise might experience if unsupported. The optically-recordable coating may include an energy-absorbing layer which develops discontinuities immediately upon impingement by a focused laser beam and thus provides DRAW capability.

REFERENCES:
patent: 2662804 (1953-12-01), Hutton
patent: 3488646 (1970-01-01), Sugaya et al.
patent: 3509274 (1970-04-01), Kihara
patent: 3954469 (1976-05-01), Avanzado et al.
patent: 4308545 (1981-12-01), Lehureau et al.

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