Optical lens

Abstract

A lens suitable for placement in spectacles, the lens element having a spherical surface with a radius of curvature of less than 35 mm, the lens element being adapted to be placed with its center of curvature at the centroid of rotation of the eye, characterized in that the lens element is of sufficient size to be viewed from the front Provides a field of view greater than 55° from the line of sight to the temporal direction.

Description

technical field The present invention relates to an improved ophthalmic lens and spectacles, including prescription lenses, spectacles, sunglasses, safety glasses and frames thereof. Background technique Most conventional prescription lenses have relatively flat base curves. These lenses provide a limited field of view due to edge distortion and / or physical size limitations. Their flatter shape limits the degree of protection the lenses provide to the eye, especially near the temporal region. Wraparound glasses have been proposed in an attempt to provide a wider field of view and more eye protection. The wraparound style also allows the glasses to vary and sometimes touch all styles. But wraparound glasses are basically over-the-counter. These products also essentially have a flat base surface between 6 and 10D. Orbiting (and sometimes combing) is accomplished by turning and / or translating the optical axis of the lens in the direction of wear. See, eg, US Patent Appl...

AI Technical Summary

Problems solved by technology

These lenses will not fit properly in a single frame, but virtually every prescription itself states the frame size and style it prescribes

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