Single point attachment of bridge and temples to eyeglass lenses
US6024445A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Nov 4, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C1/02
- WIPO fieldOptics
- WIPO sectorInstruments
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 inc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.