Patent ID: 7338163
Filing Date: 2008-03-04
Classification: G02C

Abstract:
1. An ophthalmic lens intended for far vision and intermediate vision, having a complex surface with an optical center, a substantially umbilical meridian, a mean-sphere progression on the meridian greater than or equal to 0.5 diopters, the complex surface having: in its upper part, a far-vision region formed by points where cylinder is less than or equal to 0.25 diopters and covering an angular sector centered on the optical center and with a 160° angle; substantially constant mean sphere on the meridian in the far-vision region; a progression length less than or equal to 12 mm, progression length being defined as a vertical distance between the optical center and a point on the meridian for which mean sphere is higher by 85% of said mean-sphere progression than mean sphere at the optical center.