公开(公告)号：BRPI0704653A

公开(公告)日：2008-04-22

申请号：BRPI0704653

申请日：2007-02-28

Applicant: ESSILOR INT

Inventor： GUILLOUX CYRIL ,  GAUDEMARIS DIANE DE ,  BERTHEZENE MARIE-ANNE ,  CARIMALO CELINE

IPC: G02C7/06

Abstract: A method for the determination by optical optimization of a personalized progressive ophthalmic lens intended to be inserted into a frame chosen by a given wearer for whom a power addition has been prescribed in near vision, the method comprising the stages of: - measuring parameters representing the frame chosen by the wearer; - choosing an initial distribution of power and resulting astigmatism defect targets for each direction of viewing under wearing conditions in an ordinary frame; - calculating transformation coefficients using the measured parameters representing the chosen frame and standard parameters; - calculating a personalized distribution of the power and resulting astigmatism defect targets on the lens by applying the calculated transformation coefficients to the initial distribution. The method makes it possible to retain the proportion of the distribution between the far-vision, near-vision and intermediate-vision zones whatever the size and the shape of the frame chosen.

公开(公告)号：BRPI0704621A

公开(公告)日：2008-05-06

申请号：BRPI0704621

申请日：2007-02-28

Applicant: ESSILOR INT

Inventor： GUILLOUX CYRIL ,  GAUDEMARIS DIANE DE ,  CARIMALO CELINE

IPC: G02C7/06