The design and internal milling profile of the individual acrylic letters E, X, I, and T were rigorously tested to produce an even distribution of the LED lights.
In addition to numerous material and manufacturing specifications, our prototype exit-light fixtures with free-floating letters were required to undergo a “Non-energized Contrast Visibility” test in which certified inspectors cut or clip the letter forms of one fixture to alter its legibility. The altered and original fixtures are then hung side-by-side in a 100-foot-long corridor. Both of the exit-light fixtures are then turned off and illuminated with an external thirty-foot candle light source. A test subject standing at the opposite end of the long corridor is then given ten seconds to identify which fixture is the complete, unaltered fixture containing all four letters, E, X, I, and T.
LELU received one of ARCHITECT'S 2016 R+D Architecture award. The awards program "proudly celebrates the research, materials, and technologies that have advanced the AEC industry at every scale—from design strategies and building systems to revolutionary products, software, and fabrication methods."
LELU Exit Sign establishes a new set of priorities for safety-related building components. Namely, an exit sign should exceed its important life-safety function by incorporating aesthetic and technical ambitions into the design. It combines a minimal, graphic appearance with equally refined mounting options to accommodate a range of design conditions. Luminosity is driven by compact LEDs arrayed within the EXIT legend to maximize uniformity, color, brightness and most importantly, legibility. The enclosure is substantial, milled from solid acrylic and aluminum stock, and is available with either red or green lenses. A concise range of metal finishes insures that every aspect of the sign performs at the same exceptional level.
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