Ophthalmic mounting for bifocal lenses
OwnerTohru Negishiinventor
Life of this patent
Estimating the term…
Abstract
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.
Claims16
An ophthalmic mounting comprising:
- a pair of right and left lens holding means;
- a pair of hollow right and left nose pads including a corresponding pair of elongated right and left guide openings, each of said pair of right and left nose pads having an upper end and a lower end;
- support means for slidably supporting said pair of right and left nose pads relative to said pair of right and left lens holding means, said support means extending from said pair of right and left lens holding means and including a pair of right and left sliding members freely slid along said pair of right and left guide openings such that at least two different focal fields can be moved into and out of desired position of use;
- and
- locking means including a pair of right and left first locking elements located within said pair of right and left nose pads and moved with said pair of right and left sliding members, and a pair of right and left second locking elements located at the upper ends of said pair of right and left nose pads and adapted to cooperate with said pair of right and left first locking elements so as to lock said pair of right and left lens holding means in a raised position.
Dependencies are inferred from the claim text.