Poul Henningesen, ceiling light model PH 5-4.5, Charlottenberg , Louis Poulsen, 1980sCharlottenborg ceiling lamp, model 5 4. 5, designed by Ebbe Christensen & Sophus Frandsen, based on ideas and sketches originally made by Poul Henningsen and produced by his his life long collaborator Louis Poulsen in the 1980s. The lamp builds on Henningsens old and proven concept with several screens stacked on top of each other. His concept of the stacking screens is very efficient of spreading the light evenly and his designs always give you a