Decentered noncorrective lens for eyewear
AssigneeOakley, Inc.
InventorsMalcolm Neal Houston, James H. Jannard, Carlos D. Reyes
Life of this patent
Estimating the term…
Abstract
Disclosed is an optically corrected lens for nonprescription, dual lens eyeglasses. In a preferred embodiment, the anterior surface of the lens lies on a portion of a first sphere having a first center. The posterior surface of the lens lies on the surface of a second sphere having a second center. The first and second centers are offset from one another to provide a tapered lens. The lens is oriented on the head of the wearer by a frame that maintains the lens in a position such that a line drawn through the first and second centers is maintained substantially in parallel to the normal sight line of the wearer. Methods of making the lenses, and eyewear incorporating the lenses, are also disclosed.
Claims12
An eyeglass lens, for use in noncorrective dual lens eyewear, in combination with a frame to support the lens in the path of a wearer's normal line of sight, comprising:
- a lens body;
- a front surface and a rear surface on the lens body, defining a lens thickness therebetween;
- the front surface conforming substantially to a portion of the surface of a first sphere having a first center;
- the rear surface conforming substantially to a portion of the surface of a second sphere having a second center;
- said first center and said second center offset from one another to taper said lens thickness;
- wherein said lens is mounted in the frame such that an optical centerline drawn through said first and second centers is spaced from and maintained substantially parallel with the wearer's normal line of sight in each of a horizontal plane and a vertical plane.
Dependencies are inferred from the claim text.