062 AUDITORIUM LIGHTING / BYU-IDAHO CENTER, IDAHO, USA
Glowing semi-recessed pendant fixtures are set in random patterns in the low volume spaces and recessed glowing downlights are set in a zig-zag pattern in the ceiling of the curved corridor adding a sense of play. The large pyramid stair leading to multiple balcony levels glows along its length and the wall behind it is deliberately highlighted.
south axis to accommodate the size of the audience during assembly and intermissions. Surface brightness was carefully designed to keep these long volumes from becoming dark areas. Decorative glowing sconces and a reverse cove were utilised to light the long curving walls. Artwork along the walls is illuminated with small aperture recessed accent lights. Glowing semi-recessed pen- dant fixtures are set in random patterns in the low volume spaces and recessed glowing downlights are set in a zig-zag pattern in the ceiling of the curved corridor adding a sense of play. The large pyramid stair lead- ing to multiple balcony levels glows along its length and the wall behind it is delib- erately highlighted. The choice of sources and attention to surfaces create a luminous lobby that is inviting and comfortable. All light sources in the lobby, with the exception of the art accent lighting, use either highly energy-efficient, long-last- ing metal halide or fluorescent sources.
Although halogen incandescent, the MR16IR accent lights are the most efficient of their kind. The entire lobby is controlled by a central switching system and changes light- ing looks and levels based upon time of day and time of year through astronomical time clock based controls.
In the auditorium, the firm designed light- ing for the fan-shaped audience chamber that can be customised for performance, devotional, or lectures. Careful attention was paid to the finishes on the side walls and other details to create intimacy and warmth. Recessed ceiling fixtures and deco- rative sconces provide a soft glow, creating an intimate feel in the expansive space. At 15,000 seats, the auditorium is one of the largest production theatres in North America built for the primary purpose of supporting weekly student devotional services. “It may seem ironic but we want to try and make the large space appear more inti-
mate, as is the case with BYU, and a smaller space appear to have more grandeur,” states French. “There are practical issues that must be considered when designing the architectural lighting for a large space such as accessibility to the lighting fixtures. Obviously, filling a large volume of space will require more light and more power and demand a larger more complex lighting system.
“In the case of the BYU-Idaho Center, the large surfaces of the side walls were an architectural element we wanted to break up with wall washing and custom vertical sconces. In addition we used glowing deco- rative sconces for the balcony fronts.” The chamber features two balcony levels in addition to the main floor. The general lighting for the 73,300 square foot hall features a dual system that can be used in several different configurations. For perfor- mance and devotional use, a fully dimmable incandescent quartz halogen downlight
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