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The night time view of Seoul, from the peak of Namhansanseong, immediately southeast of the Korean capital
To some, light is a source of beauty. To others, it irritates.
To the former, the permanently-on lights of Seoul represent the city’s
vibrancy and the country’s world-leading technology standards. To the
latter, it is sheer pollution and an eyesore that needs to be blocked
with thicker drapes.
Therefore, when the Ministry of Environment and the Seoul City
government asked Ko Ki-young, one of Korea’s few lighting design
experts, and her partners at Bitzro to assess the famous Dongdaemun
garment district’s lighting, they presented two contradictory
objectives.
“We were asked to remodel 21 buildings in the Dongdaemun area for the
project,” she told The Korea Times on Tuesday. “They told us first that
the lights should be brighter to foster the area’s commercial
activities, wanting to emulate Times Square (of New York). They also
said that the lights as they are now are ugly. (The officials) wanted
them to be minimized to reduce light pollution.”
Buyongji, a pond in the garden of Changdeok Palace, downtown Seoul, lit up
With a rather sudden change of mayor, the project is stalled at the
moment, but light continues to be on politicians and civil servants’
minds.
Last month, the Seoul City announced that all the public lighting
devices would be entirely switched to LED lamps by 2018, citing energy
efficiency and better luminosity. But Ko urged caution against making
big promises too soon.
Though LEDs, or light-emitting diodes, are the next step in lighting
technology that can mimic natural light better than earlier technology,
there are pitfalls, according to Ko.
“LEDs really took off two years ago receiving all the attention, leading
people to mistake it as the ultimate best. But it’s still evolving.
Switching to them 100 percent doesn’t seem right.”
The lighting for the Open Plaza (“Yeolin Madang”) of the National
Museum of Korea, Yongsan, central Seoul, was completed in consultation
with Bitzro & Partners.
Courtesy of Bitzro & Partners
The most common misunderstanding about LEDs is that they automatically
save energy, she said. Unlike traditional incandescent or florescent
bulbs, LED light is emitted directly below ― without spreading around
the source. This means that more lamps are needed to cover the same
space. Without the right amount of reflectors, the promises of less
power consumption do not hold up.
Similarly, the biggest mistake is just changing the lamps to newer technology without adjusting the structure’s layout.
“It may not be readily visible… but the light condition becomes
inconsistent, with the space right below sources A and B very bright but
between those points it is darker than before, comparable to a sine
curve. That way, if you install LED lights in an area with a high crime
rate, it only creates an air of anxiety.”
Seoul’s citizens, young and old, enjoy the color fountains at the Gwanghamun Plaza on Sejongno, downtown Seoul.
/ Korea Times file
So what is so-called good lighting design?
“There is no such thing as a design that pleases everyone. If we can get
60 to 70 out of a hundred, we call it a success. Even if we think it is
wonderful, clients can say it is too dark.
If I were forced to distinguish between the good and bad lighting, I
would have to see if it as a blunt expression or one that fits in with
the rest… a soft, harmonious light.”
The kitsch Banpo Bridge Rainbow Fountain came to mind, as she said those
words. Hyped as the world’s longest bridge fountain, 200 bulbs
illuminate its moving flows of water in colors that have nothing to do
with a rainbow.
“It feels quite different from the one in the sky, doesn’t it?”
As a positive example, she cited Times Square, arguably the world’s most
famous attraction of electric lights. Though the logos _ and colors _
change with the times, the outdoor space is governed by strict
regulations. It was revealed in a recent project by American artist
Christine Hill that all the electric billboards must be turned on at all
times to keep the glow of the square constant. Ko added that the
luminosity of the signs are regulated to achieve the right balance as
well, unlike around Dongdaemun.
“It’s not fawning over what’s in the West and belittling our own
efforts. Rather than the collection of the best-looking eyes, nose and
mouth, we see a natural whole face as the most attractive because it has
harmony. No one light should stick out,” said Ko.
Ancient Seoul’s main east gate area has no order, she observed. “Every light wants to be the brightest of them all.”
But her consolation is that the lights can be modified much more easily than the concrete structures themselves.
A view of Seoul from Naksan Park, Dongsungdong, downtown Seoul, through a hole on the ancient city wall
“At least we don’t have to totally destroy them and rebuild them.”
She also suggested that the water under Banpo Bridge have a fuller body and its reflected lights be more subtle and natural.
When someone says lighting design, people think of just lamps and light
bulbs, i.e. artificial light. But the origin of all light begins with
the natural, said Ko. For her, there lies the answer to many of the
Korean capital’s problems.
“We are used to the on-off mode of artificial light… but to have this
essential element of the environment be so constant while we do so many
different things is dangerous.”
For Ko, who also worked for the recent Yeosu Expo’s general lighting
scheme, the ideal lighting ― inside and outside ― needs to adjust
continuously and interact with natural light to achieve the most
comfortable 24-hour cycle for human beings.
“The best light is the one that mimics natural light… and the darkness, too.”
As with any architect or public space designer, she faces the challenges
of inflexible civil servants, who often need a lot of cajoling and
convincing. “Koreans are at this point are so used to blunt, direct
light sources. They now feel uncomfortable in comfortable lighting
conditions.
“But after a month or two, they get used to it.”