| Patent Number |
Title Of Patent |
Date Issued |
| 7344245 |
Method of designing progressive lenses |
March 18, 2008 |
| A method and system for designing a progressive lens is disclosed. The method includes modifying a reference progressive lens design having a peripheral design which is suitable for a wearer and design features with known values. The modification of the reference progressive lens design |
| 7066597 |
Balanced progressive lens |
June 27, 2006 |
| A progressive ophthalmic lens element including a lens surface having an upper viewing zone having a surface power to achieve a refracting power corresponding to distance vision, a lower viewing zone having a different surface power than the upper viewing zone to achieve a refracting pow |
| 6793340 |
Progressive lens |
September 21, 2004 |
| A progressive ophthalmic lens including a far vision zone, a near vision zone and an intermediate vision zone is provided having a relatively high, relatively wide near vision zone and a relatively wide intermediate zone. A surface correction(s) for reducing optical aberrations in periph |
| 6652096 |
Progressive lens |
November 25, 2003 |
| A series of progressive opthalmatic lens elements, each lens element including a lens surface having an upper viewing zone having a surface power to achieve a refracting power corresponding to distance vision; a lower viewing zone having a greater surface power than the upper viewing |
| 6343861 |
Myopia lens |
February 5, 2002 |
| A progressive ophthalmic lens element including a lens surface having an upper viewing zone having a surface to achieve a refracting power corresponding to distance vision, a lower viewing zone having a greater surface power than the upper viewing zone to achieve a refracting power c |
| 6305800 |
Ophthalmic lens |
October 23, 2001 |
| An ophthalmic lens element having a first surface and an atoroidal or generally aspheric second surface. The second surface is described by a symmetric polynomial whose coefficients have been chosen to minimize a merit function constructed of the sum of a particular optical aberration |
| 6260967 |
Progressive lens |
July 17, 2001 |
| A progressive ophthalmic lens element having a front surface that includes an upper viewing zone having a surface power suitable for distance vision, a lower viewing zone having a surface power suitable for near vision, and a corridor of relatively low astigmatism connecting the upper an |
| 6155681 |
Progressive lens |
December 5, 2000 |
| A progressive ophthalmic lens element including a lens surface having upper viewing zone providing good optical quality at a predetermined low surface power over a large area of vision; said predetermined power being determined by the viewer's distance prescription (R.sub.x) the horizont |
