Measurement of bi-directional photometric properties of advanced glazing based on digital imaging techniques
Many daylighting applications require a precise knowledge of the transmission properties of fenestration materials, called bi-directional transmission distribution functions (BTDF), which necessitate systematic and accurate measurements. A new type of bi-directional photogoniometer, based on advanced imaging techniques, has been developed to this end; its mechanical concept, the calibration procedures and the first results are presented here.
Measurement of Bi-directional Photometric properties of advanced glazing.pdf
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