Highly visible markings for contact lenses

Details Highly visible markings for contact lenses Highly visible markings for contact lenses

1994-06-01

1995-11-14

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351177, G02C 704

Patent

active

054671493

ABSTRACT:
A method of improving the visibility of indicia marked into an optically clear surface is disclosed comprising marking a pattern of varying depths within the boundaries of the indicia.

REFERENCES:
patent: 2034308 (1936-03-01), Morgan
patent: 2354772 (1944-08-01), Prange
patent: 4194814 (1980-03-01), Fischer et al.
patent: 4219721 (1980-08-01), Kamen et al.
patent: 4268133 (1981-05-01), Fischer et al.
patent: 4525044 (1985-06-01), Bauman
patent: 4889421 (1989-12-01), Cohen

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