Times Square in New York City is now home
to some of the world's most spectacular signs incorporating innovative,
cutting-edge technology. Going beyond steam representing hot coffee or a
lit cigarette, today's signage incorporates everything from fiber optics
to strobe lights in a quest for attention. The use of billboard-sized
video screens has increased in the past few years, and recently LEDs
have been adapted into the mix of lighting sources found. The massive
advertisements that dotted the cityscape in the movie Blade Runner are
now a reality. NASDAQ, with its seven-story LED sign, and the E-Walk
movie/ entertainment center on 42nd Street, with its five-story Loews
sign, are two of the more illuminating examples attracting millions of
tourists.
Early users of new technology are often
challenged by unforeseen snafus, such as manufacturing problems,
construction delays, and the weather, not to mention skepticism by many.
The project team associated with the Loews E-Walk theatre complex in
Times Square certainly had these problems, and more, to be concerned
with and ultimately to be successfully resolved. "This sign can be
seen from Second Avenue [near the easternmost edge of Manhattan], and
while driving on the West Side Highway. The usage of [Color Kinetics]
LED technology fulfills the intention of a Times Square-type sign to be
big, bright, and attract attention," says Teddy Asero, project
manager for the Rockwell Group, the architectural/ design team for the
entire theatre, including the conception of the sign.
Asero continues, "Actually, the
usage of new technology was originally suggested by our lighting
designer, Paul Gregory of Focus Lighting. We knew we wanted something
different, something to get noticed, and it had to be more dynamic than
light bulbs dancing around." The results of the collaboration
between the Rockwell Group and Focus Lighting is a 60'-tall by 8'-wide
(18x2.4m) blade-type sign utilizing a quarter-million red, blue, and
green LEDs spelling out LOEWS. It is attached to the building above a
traditional marquee. Carmen Aguilar, Rockwell senior associate, designed
the building facade above the marquee to be reminiscent of a proscenium
arch (five stories high) and the vertical sign plays an important role
in being a link to the "grand movie palaces of the past," adds
Asero. "This sign is an icon indicative of the large theatres of
yesteryear." The picture gallery located inside the complex shows a
multitude of theatres of the 1930s and 40s, many in an Art Deco style,
all adorned with the trademark blade sign. Clearly, the challenge was to
give the familiar a new look.
"What separates us from all of the
other LED signs in Times Square is we started from scratch, not wanting
to create video images. We wanted to create bright, high-contrast,
colorful geometric shapes and sequences, and because of that we could
approach the whole problem differently, not having to worry about adding
display processors and such. That allows us to use traditional control
and to develop interfaces that a lighting designer is more comfortable
with," says Fritz Morgan, director of engineering for Color
Kinetics.
Gregory notes, "The LED is very
specific in the way it emits light." Morgan clarifies, "It
also meant we could explore the viewing area of the sign, since without
displaying video, the sign did not need to be viewable over a wide range
and have a consistent image displayed across it. For example, the NASDAQ
sign is by far one of the best ones out there, but the problem for an
engineer is that the image needs to be viewed from all the way around
Times Square. If instead all you were trying to convey was large pixels
of color, you can focus the LEDs differently and use narrower ones to
create a much brighter, much more impactful sign, and that's what we
went for. We chose very narrow-beam LEDs, 20 degrees as opposed to the
ones for the Sony Jumbotron which are 100 degrees or 120 degrees. We
focused the LEDs up and down 42nd Street so that we can attract
attention. We could approach the problem differently from both an
engineering and a control standpoint." Agilent Technologies,
formerly a division of Hewlett Packard, provides the red LEDs, and
Nichia provides the blue and green LEDs for Color Kinetics. Nichia also
provides LEDs for the NASDAQ sign.
Focus Lighting chose the Color Kinetics
digital color-changing LED system which allows for the intelligent
control of colors and sequences via DMX. Project designer Brett
Andersen, also of Focus, offers additional background: "We had
proposed just about everything one could think of for Times Square
signage: incandescent lights, PAR lamps, neon. We even explored light
pipe, and fiber optics, but nothing was really spectacular--the owner
wasn't thrilled about anything. I was aware of a company called Color
Kinetics that had won a product of the year award at LDI." [The
C-Series self-contained color-changing LED fixture was LDI97
Architectural Lighting Product of the Year.] The kinetic nature of the
source, to borrow from the company name, just tends to grab more
attention and we were naturally drawn to that. Based on other
experiences, I was able to see the power of doing those kinds of changes
and patterns. Maybe there were three people in the company [Color
Kinetics] at that point, but we knew the source was right, it had long
lamp life and the ability to change colors, and there was just the
problem of figuring out how to do it from there."
"There" meant designing a
circuit board that could be cut on a bandsaw to fit the shapes of the
letters. Morgan explains, "Each board is divided into three pixels,
or three controllable squares, and each square has 120 LEDs on it. The
same board is replicated for the different letters. You set a DMX
address for it, store it in EPROM; you have nine channels of DMX control
for that board: three for each pixel, one for red, one for green, one
for blue, for each of the three pixels." This arrangement
simplifies control and "you don't need as many LEDs in the sign,
which makes fabrication easier, simpler, and less expensive. In
addition, a traditional sign fabricator can be used. In this case,
Universal Unlimited of Long Island did the fabrication, with Empire
Erectors providing the rigging and attachments."
LEDs require heat management, and that
means ventilation. Andersen explains how: "It required ingenuity to
create spaces for the fans and then to keep water from getting into the
sign. That was a whole new thing to consider." A system of sensors
automatically triggers fans within the sign. If the temperature
continues to climb, LEDs are gradually switched off to lessen the heat
load. As the temperature decreases, the sign returns to normal
operation.
"The whole sign consists of six DMX
universes, and that runs back to a Strand 510i show controller.
Essentially, it's their top-of-the-line 500 series console squished down
into a box. The DMX is distributed through a Pathfinder from Gray
Interfaces, and Belden cable was specified for the DMX," Andersen
adds.
"One of the reasons to specify the
Strand 510i show controller was the ability to interface with the Panja
control system (formerly AMX), and so what we've done is use a 10"
touch panel display which gives the theatre management an easy-to-use,
straightforward interface to the 510i. The manager would probably not
know how to program the Strand to make the sign red, so we've canned the
programming into multiple cues, and loops of effects, and he simply
accesses the Panja panel, places the sign into manual mode, and selects
red, for example, and the LEDs turn red, until the system is returned to
normal mode, a randomly running sequence of patterns and colors. Among
the manual cues are about 15 colors: red, blue, green, magenta, cyan,
yellow, purple, lime, lemon--a good mix. Originally being theatre
lighting designers, we used standard gel-type color names, so the colors
are labeled as bastard amber, steel blue, or congo, names like
that," says Andersen. The programming was done by Jaie Bosse and
Will O'Halloran of Focus Lighting, with Sepp Spenlinhauer as the control
system designer. Visibility, especially during the day, was a key issue
and many people were skeptical. Morgan says, "A letter was placed
in a mock-up, and Sol Sachs, the senior vice president of design for
Universal Unlimited, exclaimed, 'It's brighter than the sun.' "
Along with the LEDs, neon, a Times Square favorite, is still featured.
Andersen notes, "There is an outline in white on each letter, and
blue neon behind the letter to give it a halo effect, plus yellow, which
runs the outline of the entire sign in a double band for accenting and
definition. If you didn't ring the letters with neon, they would be
lost. Now it reads as LOEWS no matter what color pattern is running
across it--it defines it much more."