Single point attachment of bridge and temples to eyeglass lenses

Details Single point attachment of bridge and temples to eyeglass lenses Single point attachment of bridge and temples to eyeglass lenses

1998-11-04

2000-02-15

Dang, Hung Xuan

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Rimless mounting

G02C 104

Patent

active

060244453

ABSTRACT:
Attachment of a bridge and temple hinge to the lens of rimless eye glasses. The attachment is accomplished by providing a tapered aperture is each lens adjacent to the outer surface of the lens and conforming the distal ends of the bridge and temple hinge to conform to the taper of the aperture. This combination provides a friction lock between the aperture and the bridge and temple hinge. The taper can be in the range of 1 to 20 degrees either convergent from the front to the back of the lens or divergent from the front to the back of the lens. Ideally a taper of 4.5 degrees is preferable. The taper can take the form of a cylinder, rectangular or triangular. The distal ends of the bridge and temple hinge can be inserted either from the front of the lens toward the back or from the back toward the front. The distal ends of the temple hinge can be inserted directly into the aperture or can be bent formed to provide a bias between the outer surface of the lens adjacent the aperture for non-rotational support. In some applications a notch is provided at the outer lens surface and the bent formed portion of the temple hinge is nested therein for additional mechanical support and to increase the resistance of relative rotation of the bridge or temple hinge.

REFERENCES:
patent: 5585870 (1996-12-01), Masunaga
patent: 5835183 (1998-11-01), Murai et al.

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