Experimental Field Studies on Tempered Flat Glass

Optical anisotropy effects in tempered glass are described as partially disturbing since they only become visible to the human observer under specific environmental influences and viewing conditions, c.f. section 3.4. To correlate the subjectively perceived optical effects with the results of the photoelastic measurements and thus objectify the problem, a test facility in the form of a facade is being designed based on the state of knowledge, see Fig 6.1. A series of observational studies on the visibility of anisotropy effects in tempered glass are performed at the outdoor test rig.