Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Rimless mounting
Reexamination Certificate
2009-05-20
2010-06-01
Dang, Hung X (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Rimless mounting
C451S041000, C451S042000
Reexamination Certificate
active
07726808
ABSTRACT:
A method and apparatus for improving the performance of rimless spectacle lenses. An abrasive wire is provided for polishing bore holes which are drilled in lenses. The abrasive wire includes a wire substrate with abrasive particles embedded along its length. The wire and particles are dimensioned for threading through the bore hole and allowing space to perform a soft-filing operation. By polishing the micro cracks formed during drilling, propagation leading to lens failure which arises from spectacle use can be reduced.
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Monaham Filaments. Abrasive Fibers: Abrasive Filament Properties. Abrasive Brochure. www.monahanfilaments.com. (6 Pages).
Kitchloo Paresh
Weymouth, Jr. Russell F.
Dang Hung X
Gentex Optics, Inc.
Keusey & Associates, P.C.
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