Method of creating a replicating matrix

Details Method of creating a replicating matrix Method of creating a replicating matrix

1973-10-01

1976-05-04

Husack, Ralph

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

427 54, 427240, 427385, G03C 168, G03C 516

Patent

active

039544699

ABSTRACT:
A video disc master of glass, having a metal surface with microscopic apertures therein representing information, is coated with a commercial photosensitive resist, the sensitivity of which has been enhanced. The resist is uniformly exposed through the glass disc. The unexposed resist is removed using conventional developers to which a surfectant is added. The resulting disc has surface irregularities of predetermined height which can be alternatively used to product "stampers" for embossing replicas or to produce a mold for casting replicas.

REFERENCES:
patent: 3687664 (1972-08-01), Broadbent
patent: 3795534 (1974-03-01), Mehalso et al.

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