AtDisneyWorld,UniversalStudiosandother3-Dvenues, thepreferredmethodusespolarizedlensesbecausetheyallowcolorviewing. Twosynchronizedprojectorsprojecttworespectiveviewsontothescreen, eachwithadifferentpolarization.Theglassesallowonlyoneoftheimagesintoeacheye becausetheycontainlenseswithdifferentpolarization.