Lighting Products and Fixtures Design Cubeoled Luminaire by Markus Fuerderer Depth, Transparency and Contrast - Cubeoled interprets these fundamentals of visible light in a pure, monolithic design. 12 transparent organic light emitting diode (OLED) panels are arranged in an orthogonal coordinate system and laminated in between 8 optical/clear crystal glass cubes. Via transparent circuit paths applied on the inner glass surfaces, the assembled OLED panels inside the monolith are supplied with electricity. When activated, the integral array transforms this transparent cube into an omni-directional light source.