A dodecahedron is nestled within an icosahedron to form this pendant lamp designed by artist Olafur Eliasson for Danish lighting brand Louis Poulsen.
Debuted at the Salone del Mobile in Milan last month, the OE Quasi Light is designed to combine complex mathematical geometries, with atmospheric lighting conditions.
It comprises two three-dimensional shapes that slot together, even though they are complete opposites.

The outer layer, made from aluminium, is an icosahedron ? a 20-sided form with 12 vertices. But the inner layer, made from reflective white polycarbonate, is a dodecahedron ? a 12-sided form with 20 vertices.
LEDs sit in between the two layers, directing light into the centre so that it can be reflected back out.
According to Louis Poulsen, the inner layer "seemingly floats inside, reflecting the light in a spherical light distribution". The overall effect is a light that takes on different geometries, depending on the angle from which you look at it.

Eliasson often plays with the laws of geometry in his work, with examples including the Cirkelbroen bridge in Copenhagen and the colourful sets he created for Wayne McGregor's Tree of Codes ballet.
Even the latest version of his solar-powered Little Sun lamp, designed for developing countries, mimics the faceted geometries of diamonds.

"I'm very excited to bring my longtime interest in geometry and light into this collaboration with Louis Poulsen," said Eliasson.
"What distinguishes it...