Center for Integrated Building Design Research Jan 2009 | Page 50

ARTIFICIAL SKY

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Photo Sensors
The graphs to the right represent data collected from grid arrays of calibrated photo sensors. The sensors
were placed within a physical model representing one 32’ structural bay of the project’s eastern most
phase. This information is a comparative analysis of varied conditions created from changes to the south
fenestration and the roof condition above the central atrium. Figures 1-3 show the changes made to the
PV integrated screen that shades the exterior from southern exposure. These changes also increase
interior illuminance by reflecting northern light into the space. The screen controls the luminance into
both floors through a 5’ ceiling aperture.