From Hara Museum ARC, Gunma
Sunspace for Shibukawa, 2009 installation process Part 3
Scaffolding around the work, lenses to be installed on the roof.
Each of the lenses is carefully laid out, using a surveying instrument.
Approximately every second week, a perfectly round rainbow will be projected onto the convex surface directly opposite the prism through which the light is emitted. The timing of the rainbow occurrences has determined the positions of the occuli across the roof of the observatory. In winter, the rainbow will be visible in early morning, with autumn and spring affording views later in the day. On the summer solstice, the round rainbow will appear at the latest hour in the day. The gradual temporal shifts in the occurrence of the rainbows subtly merge celestial movement with the experience of space and light. (excerpted from the artist’s statement)