High stability silver based alloy reflectors for use in a writab

Details High stability silver based alloy reflectors for use in a writab High stability silver based alloy reflectors for use in a writab

1992-10-19

1999-09-07

Kiliman, Leszek

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 643, 428 644, 428 646, 428 648, 428 653, 428 655, 428694RL, 428694DE, 428900, 428128, 428129, 428130, 428131, 369 13, 430945, G11B 566

Patent

active

059484977

ABSTRACT:
A writable compact disk has a plastic substrate, a recording layer, a reflecting layer, and a protective overcoat, the reflecting layer is comprised of a silver-palladium alloy, a silver-copper alloy, or a silver-palladium-copper alloy. By maintaining the palladium component of the alloy less that 15 at. % and the copper component of the alloy less than 30 at. %, the reflectance of the reflecting layer can be similar to the typical gold reflecting layer while jitter and NORP levels can be reduced for illumination power levels exceeding the power normally used to write on the recording layer.

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patent: 5041356 (1991-08-01), Takeda et al.
patent: 5080946 (1992-01-01), Takagisi
CRC Handbook of Chemistry and Physics, 64.sup.th ed.; CRC Press Boca Ratan, 1983; pp. E-11.fwdarw.E-14.

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