Method for manufacturing an ophthalmic lens comprising a marking step for producing permanent technical marks on said ophthalmic lens

• Main Authors: Anatole, Vincent, Pietri, Cecile
• Format: Patent
• Language: English
• Published: 23.11.2017
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to a method for manufacturing an ophthalmic lens (12), comprising a marking step for producing permanent technical marks (24) on said lens, which comprises a body (29), a first surface (20) and a second surface (28) opposite said first surface (20); the step of additive manufacturing (110-112) of said body and said first and second surfaces, by depositing a plurality of first predetermined volume elements of a first material having a first complex index of refraction (35), in order to obtain first and second optical surfaces, respectively, of the first and second surfaces; and the step of additive manufacturing (113) of said marks by depositing, during said deposition of a plurality of said first volume elements of said first material, at least one second predetermined volume element of a second material having a second complex index of refraction (30) other than said first complex index of refraction of said first material.