The entrance on the first floor of Dentsu Inc. headquarters building in Shiodome, Tokyo, is 'autumn-colored.'

As part of its "Good Entrance, Good Innovation." project, which transforms the headquarters entrance using employee creativity, Dentsu Inc. is displaying decorations themed "FOOTSTEPS OF AUTUMN," featuring autumn leaves expressed through paper cutouts (until November 28).
Natural light filters through curtains of paper cut into the shapes of leaves and leaf veins, recreating autumn's dappled sunlight. This effect was achieved through intricate laser-cut processing.
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Laser cutter processing in progress
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Reference article:
Good Entrance, Good Innovation. Dentsu Inc.'s Innovation Starting at the Entrance[2014.11.12]