Antiprisms – geometry of light
An antiprism is a convex polyhedron; a form consisting of two parallel copies of a regular polygon, connected by an alternating band of triangles.
Design 2013 / Exhibitions Stockholm Furniture Fair Greenhouse 2013 and Ventura Lambrate Warehouse 2013
Sizes Ø 375-425mm, h 65mm / 5-7 CITIZEN COB-LEDs, 1325-1855lm, 15-18W, dimmable / Titanium-ceramic (TiN) mirror finish coated or powder coated stainless steel / Textile dual-conduit cable, adjustable single 1mm steel wire suspension / Light customisable by diameter, height and edge count
The lights are folded from a single perforated titanium-ceramic (TiN) coated sheet of stainless steel. The folds provide stability and, by their perforations, trace the form with light into space. The angular geometry of antiprisms allows high-performance LEDs to be mounted invisibly and glare-free, directing their light upwards to be reflected by the matte white inner top face. The luminous flux is optimised and shadow casting is much reduced. The LED’s heat is dissipated by one triangle each and no extra heat sinks are required.
The astronomer and optician Johannes Kepler described antiprisms for the first time. Like the Renaissance artists Luca Pacioli or Albrecht Dürer, Kepler studied polyhedral geometry, dedicating the first volume of his opus magnum Harmonices Mundi to them. The seven-sided (heptagonal) antiprism is exceptional: it cannot be constructed with compass and ruler, proven by Carl Friedrich Gauß in Disquisitiones Arithmeticae.
Astrahedra – quantum physics for the living room
Astrahedra are an infinite sequence of lights that visualise the interstellar void, home of Dark Matter and Energy. An astrahedron is a fractional splinter of the universe.
Designed 2012 / Exhibitions Create Berlin Nightshift 2012, DMY Asia Tour Taiwan/Hong Kong 2012, Stockholm Furniture Fair Greenhouse 2013 and Ventura Lambrate Warehouse 2013. Featured in Casa da Abitare 04/2013
Sizes variable / 1 CFL, 2500-4000K, 1600-1940lm, 23-30W, dimmable / Titanium-ceramic (TiN) mirror-finish coated or powder coated stainless steel / Textile dual-conduit cable, adjustable single 1mm steel wire suspension / Lights customisable by selection of astronomic objects and/or constellation
Tabbed stainless steel elements are folded and joined invisibly along their inner edges with Japanese spring-steel clips and adhesive. The perforated folds, illuminated from within, trace the true distance between astronomic objects – the lights’ corners. Depending on the desired illumination, certain elements are made from translucent plastics.
The interstellar void is not empty; it is filled with radiation, dust, gas and the unseen that provides structure to the Universe: Dark Matter and Energy. Their existence is derived from the unexpected orbital velocities of stars at galaxies’ outer rims. After the first light in the universe was captured by ESA’s Planck satellite 2013, we know that the universe contains 95,1% Dark Matter and Energy and only 4,9% atoms. The stuff that also we are made from is 13,82 billion years old.