Kristina M. Magnusson,Kenneth O.R. Jarefors,Larissa Zuravskaja,Sébastien L.M. Jacquier
申请号：
US16346267
公开号：
US20190258111A1
申请日:
2017.07.11
申请国别(地区):
US
年份:
2019
代理人:
摘要：
An automatic darkening filter for welding protection. The automatic darkening filter has a first liquid crystal cell having two flat ultrathin glass substrates. Further, a welding protector is provided that includes the automatic darkening filter. The automatic darkening filter is lightweight and nevertheless mechanically stable and durable.
