Verfahren zur Charakterisierung von mindestens einem Teil eines Einsatzes

Details

Veröffentlichungs-Nr.

EP4826350

Anmeldetag

17. April 2025

Veröffentlichung

21. Oktober 2026

Rechtsraum

EP

Abstract

Method for characterizing at least part of an insert of an optical mold at least partially reflecting visible light, for example having a mean transmission T below 50% over the visible spectrum, the insert comprising an inner surface comprising a plurality of insert elements and being adapted to obtain a face of a lens element comprising a plurality of optical elements corresponding to the plurality of insert elements, each optical element of the plurality of optical elements having a mean sphere;wherein the method comprises:- obtaining a two-dimensional representation of the local mean sphere of at least part of the insert inner surface using a fringes projection profilometry method,- determining the mean sphere distribution over at least part of the two-dimensional representation of the insert inner surface, and- characterizing at least the part of the insert inner surface within said at least part of the two-dimensional representation of the insert inner surface by analyzing the determined mean sphere distribution.

Anmelder

Firma

Essilor International

Land

🇫🇷 Frankreich