Branda Neil Robin,Erno Zachary Bryce,Finden Jeremy Graham,Lam Duhane,Loo Charles Joseph Gongming,Sargent Jonathan Ross,Smit Matthew Paul,Von Hahn Peter Alexander,Wiggin Douglas Malcolm
申请号：
US201715409196
公开号：
US2017192257(A1)
申请日:
2017.01.18
申请国别(地区):
美国
年份:
2017
代理人:
摘要：
A 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 fades state spectrum approximating a faded state target colour. The optical filter may further comprise a light attenuating layer. The optical filter may further comprise part of a laminated glass.
