May 2011 - Illuminating Engineering Society
May 2011 - Illuminating Engineering Society
May 2011 - Illuminating Engineering Society
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MEYDAN RACECOURSE<br />
Photos courtesy of CD+M Lighting<br />
The hotel abuts the racecourse, but the owner prohibited sports lights from being affixed directly<br />
onto the façade.<br />
The top of the grandstand was one of three<br />
LEDs are integrated into the underside of the grandstand seats.<br />
The challenge was that high-wattage<br />
(1,500 to 2,000-W) metal halide lamps<br />
are not fully dimmable or designed to<br />
be switched on and off (lumen output<br />
and lamp life are severely deteriorated).<br />
“Blocking the light or going to blackout<br />
was the only viable solution,” he says.<br />
Two technologies were explored by<br />
the design team to create this controlled<br />
lighting criteria: a scrolling type mechanical<br />
device which rolled a fabric in<br />
front of the luminaire, and then the shutter<br />
system, in which a mechanical visor<br />
rotates down in front of each lamp. The<br />
Musco product was eventually specified,<br />
a technology used in NBA arenas across<br />
the U.S. “Such a rig of these fixtures had<br />
70 <strong>May</strong> <strong>2011</strong> | LD+A www.ies.org
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