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1. (WO2017192421) A CURVED EYE PROTECTION SHIELD FOR WELDING PROTECTION

Pub. No.:    WO/2017/192421    International Application No.:    PCT/US2017/030344
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Tue May 02 01:59:59 CEST 2017
IPC: A61F 9/06
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: MAGNUSSON, Kristina M.
JAREFORS, Kenneth
FROISSARD, Laurent
BILLINGSLEY, Britton G.
Title: A CURVED EYE PROTECTION SHIELD FOR WELDING PROTECTION
Abstract:
A curved eye protection shield for welding protection. The eye protection shield has an electrically switchable darkening filter and a protective cover. The darkening filter has eye facing major inner and outer surfaces, and the protective cover has major inner and outer surfaces. The protective cover is provided for arrangement on the inner surface of the darkening filter. The inner and outer surface of the darkening filter are equidistant, whereas the inner and outer surface of the protective cover are non-equidistant. The invention is advantageous in that it provides an eye protection shield having a minimized refractive power.