Process for making a reflective data storage medium

Details Process for making a reflective data storage medium Process for making a reflective data storage medium

1979-09-06

1981-07-14

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430346, 430350, 430414, 430416, 430495, G03C 176, G02B 2722, G03C 148, G03C 524

Patent

active

042787580

ABSTRACT:
A method for making a reflective data storage medium by creating a volume concentration gradient of silver precipitating nuclei on one surface of a silver halide emulsion coated photoplate. This volume concentration is then built up by a silver diffusion transfer negative development using primarily solution physical development until the surface becomes reflective. Lastly, a thermal annealing step is used to increase reflectivity, recording sensitivity and produce a more uniform contrast ratio.

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Bartolini et al., "Review and Analysis of Optical Recording Media", Optical Engrg., vol. 15, No. 2, Mar.-Apr. 1976, p. 99.
The Science and Techn. of Gelatin, Academic Press, 1977, pp. 283-285.

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