Mounting structure of detachable lenses to main spectacles

Details Mounting structure of detachable lenses to main spectacles Mounting structure of detachable lenses to main spectacles

1998-09-22

1999-08-10

Dang, Hung Xuan

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

351 57, G02C 900

Patent

active

059367008

ABSTRACT:
In a mounting structure of detachable lenses to main spectacles according to the present invention, a detachable lens is provided on the surface side of each lens of main spectacles one over the other, a first magnetically-fitting piece is provided on one of the circumference of each lens and that of each detachable lens mounted to the corresponding lens one over the other, a second magnetically-fitting piece magnetically fitted to the corresponding first magnetically-fitting piece is provided on the other, guide projections are provided symmetrically on one of the circumference of each lens and that of each detachable lens mounted to the corresponding lens one over the other, and a guide hole allowing the corresponding guide projection to guide thereinto is provided in the other.

REFERENCES:
patent: 5416537 (1995-05-01), Sadler
patent: 5568207 (1996-10-01), Chao et al.

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