Back to results
US 6,183,080 B2Granted
Integral vertical plane adjusting mechanism for an eyeglass frame with multifocal lenses
AssigneeELU Patent Optical Co., Ltd.
InventorTohru Negishi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeELU Patent Optical Co., Ltd.
InventorTohru Negishi
Estimating the term…
An eyeglass frame includes a pair of rims in which a corresponding pair of bifocal lenses are mounted, and a pair of temples connected to the respective rims. Each of the temples includes a joint secured to a corresponding one of the rims, a leg having one end connected to the joint and the other end resting behind a wearer's ear, and a mechanism for enabling pivotal movement between the joint and the leg in a vertical plane so as to permit movement of the bifocal lenses between a normal position and an elevated or reading position. The mechanism is so constructed as to decrease the distance between a first point at which the joint is connected to the rim and a second point at which the joint is connected to the leg when the lenses are moved from their normal to elevated position.
A vertical plane adjusting mechanism for an eyeglass frame with a pair of rims in which a pair of corresponding multifocal lenses are mounted, said adjusting mechanism comprising a pair of temples, each of which including a first piece having one end secured to a corresponding one of said pair of rims and an other end, a second piece having one end connected to said other end of said first piece and an other end adapted to rest behind a wearer's ear, and means for enabling pivotal movement between said first and second pieces in a vertical plane so as to permit movement of the multifocal lenses between a normal position and an elevated position, said means being constructed to decrease the distance between a first point at which said one end of said first piece is connected to said rim and a second point at which said other end of said first piece is connected to said one end of said second piece when the lenses are moved from said normal position to said elevated position.
An eyeglass frame for multifocal lenses, said eyeglass frame comprising:
Dependencies are inferred from the claim text.