Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Bridges
Patent
1977-04-25
1978-12-26
Sacher, Paul A.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Bridges
351128, 351137, 351139, G02C 502, G02C 512
Patent
active
041313410
ABSTRACT:
A novel improved ophthalmic device which comprises a unique one-piece preformed detachable nosepiece for use with an ophthalmic eyeglass frame wherein the nosepiece is formed with a generally box shaped forward portion having a vertical elongated slot formed in the forward portion and having a nose bridge mount formed at the rear surface of the box shaped portion. The nose bridge portion has a pair of rearwardly and outwardly extending projections for positioning of the bridge of the nose of the user which provides a hard surface for positioning and retaining the ophthalmic eyeglass frame which is used with the one-piece nosepiece in a fixed position. A generally concave surface formed between the projections is formed in the shape of the bridge of the user's nose and is narrower at the top than at the bottom thereby providing a concave shape that retards slippage of the nosepiece. Friction increasing means may be provided on the concave surface for increasing the friction of the concave surface to prevent slipping of the nosepiece on the nose of the user and to provide a soft cushioned surface for greater comfort to the user.
REFERENCES:
patent: 1132760 (1915-03-01), Baker
patent: 1205716 (1915-07-01), Day
patent: 4032223 (1977-06-01), Bradley
Bovernick Rodney B.
Sacher Paul A.
Von Behren Norvell E.
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