Ophthalmic mounting for bifocal lenses

G - Physics – 02 – C

Patent

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Details

G02C 5/00 (2006.01) G02C 5/04 (2006.01) G02C 5/12 (2006.01) G02C 7/06 (2006.01)

Patent

CA 2189223

An ophthalmic mounting includes a pair of pad supporting arms connected to an eyeglass frame, and a pair of hollow nose pads including a pair of elongated guide openings, and a pair of sliding members carried by the pad supporting arms and freely slid along the guide openings such that at least two different focal fields can be moved into and out of desired position of use. A pair of movable magnets are attached to the sliding members. A pair of fixed magnets are attached to the upper ends of the nose pads and adapted to cooperate with the movable magnets so as to lock the eyeglass frame or lenses in a raised position. Another pair of fixed magnets are attached to the lower ends of the nose pads and adapted to cooperate with the movable magnets so as to lock the eyeglass frame or lenses in a lowered position.

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