发明名称 |
Optical article with gradient photochromism |
摘要 |
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. |
申请公布号 |
EP2851713(A1) |
申请公布日期 |
2015.03.25 |
申请号 |
EP20130306288 |
申请日期 |
2013.09.20 |
申请人 |
ESSILOR INTERNATIONAL (COMPAGNIE GÉNÉRALE D'OPTIQUE) |
发明人 |
ANG, KER CHIN DAVE;PELAYO, ANDREW;DE AYGUAVIVES, FRANCISCO |
分类号 |
G02B1/11;G02B5/28;G02C7/02 |
主分类号 |
G02B1/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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