Patent ID: 9210737
Filing Date: 2015-12-08
Classification: A42B,A61F,B63C,G02C,H05B

Abstract:
1. An eye shield adapted for use with a powered circuit having a given voltage, for preventing fogging of the eye shield and for preventing hot spots on the eye shield, comprising: an optically-transparent substrate adapted for protecting at least one of a user's eyes and adapted for defining at least a partially-enclosed space between at least one of the user's eyes and said substrate; a plurality of electrically-conductive regions of optically-transparent electrically-resistive thin-film conductive heating material on said substrate, wherein the number of conductive regions and the size of each conductive region is determined in accordance with predetermined power densities, and wherein the power density of at least one conductive region is different than the power density of another conductive region.