Patent ID: 8142017
Filing Date: 2012-03-27
Classification: G02C

Abstract:
1. Method of producing an ophthalmic eyeglass for a pair of spectacles intended for an identified wearer, said eyeglass having an anterior face (S ANT ) and a posterior face (S POST ) each capable to have an addition, said method comprising the following steps: /1/ obtaining an optical power addition value for the eyeglass, between a far vision point (VL) and a near vision point (VP) of said eyeglass, prescribed for the wearer; and /2/ characterising relative amplitudes of respective eye and head movements of the wearer, performed during a change in sight direction of said wearer; and being characterized in that it also comprises the following steps: /3/ determining a characteristic that varies according to a distribution of the addition of the eyeglass between the anterior (S /4/ depending to the relative amplitudes of the respective eye and head movements of the wearer characterised at step /2/, selecting addition values that are intended respectively for the anterior face (S /5/ manufacturing the eyeglass with the anterior (S