Method of producing an optical device and a corresponding system
AssigneesNikon Corporation, Essilor International, Centre National De La Recherche Scientifique, Universite de Haute Alsace (UHA)
InventorsOlivier Soppera, Manuel Theodet
Life of this patent
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Abstract
A method of producing an optical device from a volume of a curable composition, includes the following steps: —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; —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.
Claims18
A method of producing an optical device from a volume of a curable composition, comprising the following steps:
- polymerizing a first portion of said volume by irradiating an external surface of said volume with a light irradiation, thereby increasing a transmittance of said first portion for said light irradiation;
- polymerizing a second portion of said volume by irradiating said second portion with said light irradiation through said external surface and the polymerized first portion,
- wherein said light irradiation has a light intensity varying over said external surface between a first light intensity and a second light intensity distinct from said first light intensity, and
- wherein the step of polymerizing the first portion and the step of polymerizing the second portion are performed continuously from portion to portion of the curable composition to obtain a homogeneous transparent polymerized material.
Dependencies are inferred from the claim text.