Spectacle lens provided with a permanent marking

A spectacle lens includes a substrate and an anti-reflection or mirror interference coating covering the substrate on the side of the front face, the interference coating forming a one-dimensional or two-dimensional bar code pattern, the marking being formed by a plurality of point holes on a portio...

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Bibliographic Details
Main Authors Hubert, Christophe, Maurice, Sébastien, Auffray, Stéphane, Ferreira, Daniel
Format Patent
LanguageEnglish
Published 07.09.2021
Subjects
CALCULATING
COMPUTING
CONTACT LENSES
COUNTING
HANDLING RECORD CARRIERS
OPTICS
PERFORMING OPERATIONS
PHYSICS
PRESENTATION OF DATA
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
RECOGNITION OF DATA
RECORD CARRIERS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:A spectacle lens includes a substrate and an anti-reflection or mirror interference coating covering the substrate on the side of the front face, the interference coating forming a one-dimensional or two-dimensional bar code pattern, the marking being formed by a plurality of point holes on a portion of a thickness of the interference coating, the front face having, away from the point holes, a coefficient of reflection of light having a predetermined nominal value and, in each the point hole, a coefficient of reflection of light having a particular predetermined value that is different from the nominal value.
Bibliography:Application Number: US201716330955