Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1996-06-14
1999-05-18
Epps, Georgia
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351160R, 351163, 623 6, G02C7/04;7/10
Patent
active
059055618
ABSTRACT:
Annular mask lens for vision correction having diffraction-reducing edges. 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.
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Doshi Praful C.
Evans John M.
Lee Chun-Shen
Legerton Jerome A.
Epps Georgia
PBH, Inc.
Schwartz Jordan M.
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