Lamp Venicem - Optical Suspension 1. Optical Suspension 1 is characterized by a burnished natural brass structure that supports the glass trihedron, available in amber, smoke grey or crystal colors, which floats lightly in the environment. The light source passes through the Murano glass diffuser, radiating a soft and linear light. The Optical collection is available also in wall, floor, table and suspension versions, with one or three elements.