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公开(公告)号:US11079617B2
公开(公告)日:2021-08-03
申请号:US16522420
申请日:2019-07-25
申请人: Solutia Canada Inc.
发明人: Neil Robin Branda , Zachary Bryce Erno , Jeremy Graham Finden , Duhane Lam , Charles Joseph Gongming Loo , Jonathan Ross Sargent , Matthew Paul Smit , Peter Alexander Von Hahn , Douglas Malcolm Wiggin
IPC分类号: G02F1/01 , B32B37/12 , B32B17/10 , B60J3/04 , G02F1/157 , E06B9/24 , G02B5/20 , G02B5/23 , G02C7/10
摘要: An optical filter comprising a variable transmittance layer having a first spectrum in a dark state, and a second spectrum in a faded state; and a color balancing layer having a third spectrum; each of the first, second and third spectra comprising a visible portion; the first and third spectra combining to provide a dark state spectrum approximating a dark state target color, and the second and third spectra combining to provide a faded state spectrum approximating a faded state target color. The optical filter may further comprise a light attenuating layer. The optical filter may further comprise part of a laminated glass.