Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1998-03-31
2000-02-15
Epps, Georgia
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351160H, G02C 704
Patent
active
060244488
ABSTRACT:
This invention provides a contact lens comprising a front surface, a back surface and an identifying mark on at least one of said front surface and said back surface, wherein said identifying mark comprises a depressed region having a cross-section which comprises at least two intersecting concave surfaces at the bottom of said depressed region.
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Chehab Khaled A.
Crowe Carl G.
Hutfles Patricia Ann
Martin W. Anthony
Nason Richard J.
Epps Georgia
Johnson & Johnson Vision Products Inc.
Kiernan Anne B.
Schwartz Jordan M.
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