Nikon Corporation

Essilor International

Centre National De La Recherche Scientifique

Universite De Haute-alsace (uha)

Manuel Theodet

Olivier Soppera

A method of producing an optical device from a volume of a curable composition, includes the following steps: &#x2014;polymerizing a first portion of the volume by irradiating an external surface of the volume with a light irradiation, thereby increasing a transmittance of the first portion for the light irradiation; &#x2014;polymerizing a second portion of the volume by irradiating the second portion with the light irradiation through the external surface and the polymerized first portion, wherein the light irradiation has a light intensity varying over the external surface between a first light intensity and a second light intensity distinct from the second light intensity. A corresponding system is also described.

Method of producing an optical device and a corresponding system

Disclosed is a method for manufacturing an article made of a polymerized material including the steps of: &#x2014;providing a vat of polymerizable material, transparent at least in the 400-800 nanometers wavelengths range, &#x2014;irradiating the polymerizable material with a laser beam according to a predetermined pattern so as to polymerize the polymerizable material in order to form the article, the predetermined pattern being determined based on a three-dimension representation of the article with the positions in three dimensions of a plurality of volume units adapted to form together the article, the laser beam scanning the vat in three dimensions in order to be focused at each position of the volume units present in the predetermined pattern so as to initiate locally the polymerization of the polymerizable material at each of these positions.

Growing community of inventors

Tokyo, Japan

Manuel Theodet