... 3DTV, PC, cinemas, games, medicine, education, military, exhibitions and so on Technology parametersMaterial of glasses frameEnvironmental protection mixture material ... SGS, EN71Glasses thickness0.7mm±3%Glasses materialImport the thicken and harden special Polaroid glassesLight penetration rateMore than 45%Overall quality ... temperature0°C~50°C Cheap 3d glasses for TV, PC, cinemas, games and so on