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US 12,365,155 B2Granted
Process for manufacturing an optical article with an added value film
AssigneeEssilor International
InventorsFrédéric Arrouy, Gabriel Keita
Life of this patent
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Abstract
The disclosure relates to a process for manufacturing an optical article, including: providing an optical article manufactured by additive manufacturing, the optical article having a first main surface and a second main surface; providing at least one added value film including at least one added value layer; and attaching the at least one added value layer onto at least one of the two main surfaces of the optical article by laminating the at least one added value film onto the at least one main surface.
Claims9
Process for manufacturing a finished optical lens designed to fit a spectacles frame, comprising:
- forming an optical article by additive manufacturing, the optical article being an optical lens designed to fit a spectacles frame and being made of an additive manufacturing material, wherein the optical article has a curved first main surface and a curved second main surface;
- applying an outermost layer of material on the curved first main surface, wherein the outermost layer of material is made of the additive manufacturing material or a variation thereof;
- partially curing the outermost layer of material;
- providing an added value film comprising at least one added value layer;
- attaching the at least one added value layer onto the curved first main surface of the optical article by laminating said added value film onto the partially cured outermost layer of material;
- during or following the step of attaching the at least one added value layer, further curing the partially cured outermost layer of material, thereby forming a finished optical lens designed to fit a spectacles frame and having the at least one added value layer on the curved first main surface;
- applying a second outermost layer of material on the curved second main surface of the optical article, wherein the second outermost layer of material is made of the additive manufacturing material or a variation thereof;
- partially curing the second outermost layer of material;
- providing a second added value film comprising at least one second added value layer;
- attaching the at least one second added value layer onto the curved second main surface of the optical 1 article by laminating said second added value film onto the partially cured second outermost layer of material;
- and
- during or following the step of attaching the at least one second added value layer, further curing the second partially cured outermost layer of material, thereby forming said finished optical lens further having the at least one second added value layer on the curved second main surface.
9 more elements
Dependencies are inferred from the claim text.