Lens holding mechanism of rimless spectacles

Details Lens holding mechanism of rimless spectacles Lens holding mechanism of rimless spectacles

1999-03-08

1999-12-28

Dang, Hung Xuan

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Rimless mounting

351 41, G02C 104

Patent

active

060072008

ABSTRACT:
Here is disclosed a lens holding mechanism of rimless spectacles with a simple structure, which nonetheless enables the respective lenses to be securely clamped. A first holding aperture and a second holding aperture are provided in the vicinity of the circumferential fringe sides of the respective lenses and a joint member provided with a first thrusting projection and a second thrusting projection is formed extensively from a contra-lens portion of an endpiece or a bridge. The first projection is inserted into the first aperture while the second projection is inserted into the second aperture, and at least the first projection and the first holding aperture are tightly held onto each other by means of a clamping sleeve or cap made of basically, synthetic resin. In spite of such an extremely simple structure, the reliable lens clamping is assured.

REFERENCES:
patent: 5585870 (1996-12-01), Masunaga
patent: 5659380 (1997-08-01), Kobayashi

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