发明授权
- 专利标题： Clear to circular polarizing photochromic devices
- 专利标题（中）： 透明至圆偏振光致变色器件
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申请号： US12873491申请日： 2010-09-01
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公开(公告)号： US08077373B2公开(公告)日： 2011-12-13
- 发明人: Anil Kumar , Peter C. Foller , Elizabeth Furar , Forrest R. Blackburn
- 申请人： Anil Kumar , Peter C. Foller , Elizabeth Furar , Forrest R. Blackburn
- 申请人地址： US FL Pinellas Park
- 专利权人： Transitions Optical, Inc.
- 当前专利权人： Transitions Optical, Inc.
- 当前专利权人地址： US FL Pinellas Park
- 代理商 Deborah M. Altman; Frank P. Mallak
- 主分类号： G02F1/03
- IPC分类号： G02F1/03
摘要：
The present invention provides composite optical elements including a photochromic linear polarizing element and a birefringent layer such that composite optical element circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing element is formed from (i) an at least partially ordered polymeric sheet; and (ii) a reversible photochromic-dichroic material that is at least partially aligned with the polymeric sheet and has an average absorption ratio of at least 1.5 in the activated state. The birefringent layer includes a polymeric coating or a polymeric sheet connected to the photochromic linear polarizing element.
公开/授权文献
- US20110080628A1 CLEAR TO CIRCULAR POLARIZING PHOTOCHROMIC DEVICES 公开/授权日：2011-04-07
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