发明授权
- 专利标题： Eyeglass rating with respect to protection against UV hazard
- 专利标题（中）： 相对于防紫外线危害的眼镜等级
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申请号： US14023864申请日： 2013-09-11
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公开(公告)号： US09000390B2公开(公告)日： 2015-04-07
- 发明人: Karl Citek , Gilles Baillet , Francisco De Ayguavives , Gabriel Keita
- 申请人： Essilor International (Compagnie Generale D'Optique)
- 申请人地址： FR Charenton le Pont
- 专利权人： Essilor International
- 当前专利权人： Essilor International
- 当前专利权人地址： FR Charenton le Pont
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： EP11306764 20111223
- 主分类号： G01N21/55
- IPC分类号： G01N21/55 ; B07C5/342 ; G01N21/59 ; G01M11/02 ; G01N21/33 ; G02C7/10 ; G01J1/42 ; G02C7/02 ; A61F9/02
摘要：
An index value is calculated for rating an eyeglass with respect to protection against UV hazard. The index value is based on an integrated UV transmission value through the eyeglass and an integrated UV reflection value related to a back face of the eyeglass. Thus, the index value takes into account actual wearing conditions where UV eye exposure is due either to transmission through the eyeglass or reflection on the eyeglass back face. Respective index values obtained for a set of eyeglasses allow easy sorting of the eyeglasses with respect to UV protection efficiency.
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