Kingsway Luminaires
2009/2010
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Kingsway Luminaires is a public and collaborative lighting project by Vancouver artist David MacWilliam, built for the 2010 Cultural Olympiad. The Luminaires are located in two locations along the Kingsway with three lights atop 18ft poles at each location. Each light contains an RGB LED cluster that is controlled by an Arduino system and LED driver, having the effect of the lights chaning colour gradually over the duration of the night, and in a random order each time. |
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I was involved in this project to design and develop the illumination system. One of the complexities of this project was to design a system of dynamic relationships for the switching between colors, to achieve an equal time to target when going from one color to the next. We achieved this by programming a 3D vector space on the Arduino, with each RGB color addressed as a XYZ point. It was simply a matter then of scaling the transition speed to the distance between points.
The LED cluster is designed to give an even spread of light to the inside of the globe, with an emitter an angle of 360 degrees. This is made by mounting LED's emitting 120 deg of RGB light on the faces tetrahedron, and placing this somewhat in the center of the globe. |
David MacWilliam: Kingsway Luminaires from sarah keenlyside on Vimeo. |