Kristina M. Magnusson,Britton G. Billingsley,Kenneth Jarefors,Larissa Zuravskaja,Joy L. Manske
申请号：
US15162242
公开号：
US10114242B2
申请日:
2016.05.23
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An automatic-darkening filter 10, 10′ that comprises a first polarizer 14, a second polarizer 18, a first liquid-crystal cell 16, and a sensor 64. The first polarizer 14 has a first polarization direction, and the second polarizer 18 has a second polarization direction. The liquid crystal cell 16 is disposed between the first and second polarizers 14, 18 and contains first and second optically-transparent, flexible, glass layers 40 and 42 with the liquid crystal layer 48 being located between these layers. The sensor 64 detects incident light and causes a signal to be sent, which causes molecular rotation within the liquid crystal layer. The inventive automatic-darkening filter is beneficial in that overall product weight can be reduced and the view field can be increased.
