Optical recording medium

Details Optical recording medium Optical recording medium

1978-07-10

1980-08-26

Hartary, Joseph W.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

1791001G, 346 76L, 3581285, 430945, G01D 1534

Patent

active

042198267

ABSTRACT:
A recording medium comprises a substrate coated with a light reflecting layer which in turn is coated with a light absorbing layer selected from the group consisting of Pt complexes of bis-(dithio-.alpha.-diketones) which have the formula: ##STR1## wherein R is a phenyl or substituted phenyl group. During recording, portions of the absorbing layer are ablated, vaporized or melted by an intensity-modulated, focussed light beam, thereby exposing portions of the reflective layer and recording video information as a reflective-antireflective pattern.

REFERENCES:
patent: 3181170 (1965-04-01), Akin
patent: 3588216 (1971-06-01), Bloom
patent: 3665483 (1972-05-01), Becker
patent: 4069487 (1978-01-01), Kasai
patent: 4097895 (1978-06-01), Spong
Schrauzer et al., Metal Complexes of Bisdithio-.alpha.-Diketone, JACS 87:7, Apr. 1965, pp. 1483-1489.
Bartolini et al., Review and Analysis of Optical Recording Media, Optical Engineering, vol. 15, No. 2, Mar./Apr., 1976, pp. 99-108.

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