公开(公告)号：US10690939B2

公开(公告)日：2020-06-23

申请号：US15329453

申请日：2015-07-29

Applicant: Essilor International

Inventor： Berangere Granger ,  Sebastien Fricker

IPC: G02C7/02 ,  G02C7/06 ,  G02C7/00 ,  G02C5/00 ,  G02C3/00

Abstract: A pair of spectacle progressive lenses configured for a wearer suffering from convergence insufficiency or imbalance. The lens of the pair which is dedicated to the dominant eye has inset values appropriate for matching convergence of the dominant eye, but the other lens of the pair, which is dedicated to the non-dominant eye, has inset values substantially equal to zero. Such lens pair helps in suppressing the non-dominant eye for intermediate and near vision tasks, therefore avoiding or limiting symptoms of convergence insufficiency.

公开(公告)号：US10690938B2

公开(公告)日：2020-06-23

申请号：US15767814

申请日：2016-10-11

Applicant: Essilor International

Inventor： Benjamin Rousseau ,  Melanie Heslouis ,  Sebastien Fricker ,  Nacer Lakhchaf ,  Guilhem Escalier ,  Thierry Bonnin ,  Isabelle Poulain ,  Valerie Jolivet ,  Juliette Wierzbicki

IPC: G02C7/02 ,  G02C7/06 ,  A61F2/14 ,  G02C7/04

Abstract: An ophthalmic progressive addition lens for a myopic or emmetropic presbyopic wearer which has a prescribed far vision mean refractive power and a non nil prescribed addition, ADDp, the lens having a far vision reference point, a mean refractive power, PPO(α, β), a module of resulting astigmatism, ASR(α, β), a meridian line, ML(α, β), the (α, β) functions being determined in as-worn conditions of the lens by the wearer for gaze directions (α, β) joining the center of rotation of the eye, CRE, and the lens, wherein α is a lowering angle in degree and β is an azimuth angle in degree, and wherein a lens criterion, A1/A2, fulfils: A1/A2≥0.50, wherein: A1=α100%−α85%; A2=α100%−α60%.