Photoetching of acoustic lenses for acoustic ink printing

Details Photoetching of acoustic lenses for acoustic ink printing Photoetching of acoustic lenses for acoustic ink printing

1998-11-02

2000-10-24

Gulakowski, Randy

Etching a substrate: processes

Forming or treating optical article

Lens

216 27, 216 65, 216 66, 216 80, 216 94, 216 97, C03C 1500

Patent

active

061362107

ABSTRACT:
A method of fabricating a lens comprising providing a photosoluble substrate having opposed first and second surfaces; exposing one of the surfaces of the substrate to a photoactive etchant; and exposing said etchant to patterned light such that a convex or concave, generally semi-spherical bulge or recess is formed in said substrate.

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J. Steinfeld, et al., "Surface Etching by Laser-Generated Free Radicals", Journal of the Electrochemical Society, vol. 127, No. 2, pp. 514-515. Feb. 1980.
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