Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent
1998-01-08
1999-07-06
Mai, Huy
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With antiglare or shading
351 57, 351128, G02C 900
Patent
active
059203706
ABSTRACT:
A clip-on optical element device to be clipped on in front of lenses of a pair of eyeglasses or like and conforming to the pair of eyeglasses. The clip-on optical element device comprises a pair of opposite optical elements, a pair of opposite adjustable, flexible, bendable, and shapeable open rims for receiving the pair of optical elements, and a flexible bridge member detachably connecting the pair of flexible open rims together in a spaced apart relationship. The clip-on optical element device further comprises two pairs of upper and lower clips respectively attached to each of the pair of open rims for securing the clip-on device to the pair of eyeglasses. Each optical element has an annular slot in its peripheral surface and a perimeter which substantially conforms with each of the lenses of the pair of eyeglasses. Each open rim has a protruding ridge in its inner periphery surface for receiving and engaging with the annular slot of the optical element. The optical element is retained thereto by a nylon cord which engages with the annular slot and attached between the ends of the open rim.
REFERENCES:
patent: 4842399 (1989-06-01), Tsai
patent: 5123724 (1992-06-01), Salk
patent: 5724118 (1998-03-01), Krebs
Chen Tony D.
Fong Jerry
Mai Huy
Rozsa Thomas I.
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