Methods for fabricating annular mask lens having diffraction-red

Details Methods for fabricating annular mask lens having diffraction-red Methods for fabricating annular mask lens having diffraction-red

1996-12-06

1999-10-12

Angebranndt, Martin

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making named article

430 5, 351162, 351165, 351177, G02C 704

Patent

active

059653302

ABSTRACT:
Methods for fabricating annular mask lens for vision correction having diffraction-reducing edges are provided. The lens body having an annular mask that forms a "soft edge" by gradually decreasing the transmissivity radially from the center aperture to the annular mask area. The methods introduce varying levels of a coloring agent (e.g., dye) into certain portions of the lens.

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