These examples represent spatially multiplexed stereo-display implementations. In addition, temporally multiplexed implementations exist,3,4 but here we discuss measurement systems verified for the former. In any case, the method by which the content is shown introduces characteristics specific to that method as well as imperfections which affect the visual quality of the rendered content and the visual experience of the user. These imperfections should be studied so that an acceptable user experience can be ensured and so that the artifacts caused by these imperfections do not cause discomfort to the user. Conventionally, the visual experience with 3-D displays has been studied by using subjective testing.5-10 However, objective optical characterization methods are needed to validate display design and to provide for reliable manufacturing control.