How to maximize daylight?
Historically, only clear glass was used to maximize the amount of light entering through a window. Especially in cooling-dominated climate, this desirable daylight also came with undesirable solar heat gain. With the advancement of high-performance glazing systems, it is possible for low-Ecoatings to reject the solar heat gain while allowing the visible light to pass through the glass. The type of low-E coating that is appropriate for your specific house depends on location, orientation, window area, and shading strategies. (courtesy Efficient Windows Collaboration)
Light Tutorial: Transmission, Reflection, Absorbtion, Diffraction.