Beschreibung:
<jats:p>The construction and functioning of a portable alt-azimuth solar simulator and demonstration model is described. The instrument was designed to be used with a slide projector as its light source, as this is readily available in most labs. An arrangement of movable mirrors and a pivoting window allow the user to simulate a wide range of altitude and azimuth combinations of the sun. Upon insertion of a daylighting device in the window, the intensity, position, and coloration of the redistributed simulated sunlight on the ceiling and walls, as well as the presence and intensity of glare, can be visually inspected. Instrumentation consisting of a photovoltaic cell and a 20 segment bar graph display allow direct read out (in lux) of the illumination levels in the model. The scaling up from the simulator model to a full size room is simple and straightforward.</jats:p>