1986-1992 project list RAY index	2 Itako Water Gate Namco Wonder Eggs Banquet Hall, Hotel Seashore A Prefabricated House for Senior Citizens Eau de Ciel
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Itako Water Gate Architect : GK Sekkei Architectural & Environmental Design Construction completed: 1991		.
		1991 IIDA / Award of Merit
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The concept was citizens' observatory, a monument in a seaside town, and a landmark that tells fishers where their home is. The most challenging point was balance of light and dark. A landmark should be brightly contrasted, but too strong light could disturb beautiful scenery in the night sea. In addition, it was also difficult task to harmonize a massive concrete foundation and slender iron structure of truss towers. In the lower foundation part made of massive concrete, warm-colored small incandescent lamps are installed at the top so they can be maintained from the upper part. The lamps emphasize the concrete structure to distant viewers while people on the observatory can see the light pouring out through mesh structure of the floor. In the upper part, towers are sharply illuminated with white light of mercury lamps, which, at the same time, safely lighten the steps. Concrete and iron, light and dark are balanced in two colors and two levels of brightness. Different textures are contrasted and harmonized as one night scene of the water gate.
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Namco Wonder Eggs Architect: Atelier I Construction completed: 1992
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Banquet Hall, Hotel Seashore Architect : Ryosuke Yamamoto Architectural Planning Office Construction completed: 1990		.
		1991 IIDA / Award of Merit
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An ideal banquet hall should capable of hosting pleasant parties and formal meetings, but under the limited power supply of in-house generator, the designer was asked to save energy consumption as much as possible. Besides, there were three specific conditions that made lighting plan difficult: one, the hall's ceiling height was only 3.2 meters; two, the hall's plan had an irregular shape of a quarter circle; and three, there were two pillars in the middle of hall. The concept was a lily flower. The chandelier at the center is the pistil. The petals are drawn on the ceiling and walls . The small chandelier as the pistil and the indirect lighting by fluorescent lamps as the petals were the crucial point of the lighting plan. Pinhole downlights with low-consumption 12V 50W halogen lamps are scattered in the flower's outline, twinkling like stars. This harmonized the lighting with the hall's irregular shape. In the front wall, above the main table of the hall, a horizontal lighting fixture with color transition system was installed. The flower transforms in its shape and color by the hall's lighting control. With restricted power supply, gorgeousness for a party and calmness for a meeting were at the same time realized in a banquet hall.
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A Prefabri- cated House for Senior Citizens Architect : Sekisui House Ltd. Construction completed: 1988		.
		1990 IIDA / Award of Merit
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Senior people spend most part of a day in their houses. Even by day, they need an ever brighter environment than younger people do. The designer answered the need by use of metal-halide lamps and daylight-color fluorescent lamps, which achieve high performance in luminosity and durability. The designer's plan comprises three points: (1) Supplementary lighting in daytime. Senior citizens need more time to adjust their vision to darker circumstances when returned from outdoors. 150W metal-halide lamps and 100W compact krypton lamps are installed in the entrance; the metal-halides cast bracing light by day, while the kryptons lay soft incandescent light by night. In bedside, fluorescent wall washers provide sufficient luminance for reading books. The fixtures are carefully designed so they would not shine directly in the eyes. Shoji, papered sliding doors, is illuminated to make rooms visually bright. (2) Concentrated lighting for high illuminance. Senior people need three times as much illuminance as the younger. Downlights and table lamps achieve 1000lx at maximum. (3) "At home" lighting. It is often said that metal-halide lamps and fluorescent lamps are not very suitable for a residence's lighting source. The designer used natural, warm-colored materials for interior furnishing and avoided making the atmosphere feel chilly.
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Eau de Ciel: Daikin Tateshina Mountain Resort Architect : Artec Architects & Associates Construction completed: 1991		.
		1992 IIDA / Award of Merit
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Facilities including a tea ceremony house and several lodges are constructed widely over the hilly site. The "Center House" and the "Amusement House" are the center of this mountain resort. A small stream goes between the two buildings, while visitors enjoy good command through glass walls. The designer's conceptual goal was to introduce beautiful exterior scenery smoothly into the modern indoor spaces. From everywhere on the hill, one can see the interior space of the Center House through its glass walls. Extraordinary fixtures for the lobby and the restaurant tell people where the center is. Uplights on the ceiling indirectly brightens indoors, while the light partly comes outdoors through the roof made of fabric materials. The interior lighting serves as exterior illumination, showing the building as if it were a huge lantern. The Amusement House was partially dug out of a rock cliff. The ceiling is kept dark and spotlights dash beams against the rocks and structures like sunbeams dancing through leaves. Light spills out from one building and shines on the other. In the dark natural scenery, the lights from the two buildings highlight natural beauty and together melt into one continuous landscape.
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