Optical article with gradient photochromism

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United States of America Patent

PATENT NO 9678363
SERIAL NO

15023086

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Abstract

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The present invention is drawn to an optical article comprising: (a) a photochromic substrate comprising at least one photochromic dye, and (b) an interference coating having a specific gradient thickness providing for a gradient reflectance. It also pertains to a process for making such an optical article.

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Patent Owner(s)

  • ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ang, Ker Chin Dave Singapore, SG 1 7
De, Ayguavives Francisco Charenton-le-Pont, FR 22 120
Pelayo, Andrew Singapore, SG 2 7

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