The PH 4½ family is designed on the principle of a reflecting multi-shade system. It provides a harmonious and glare-free light.
The shade design is based on a logarithmic spiral - with the centre of the light source placed in the spiral’s focal point. The 1.25m tall lamp has a chrome-plated brass frame and a white opal glass shade, and comes with a 3.3m length cable.
Poul Henningsen is an integral figure in lighting design and architecture, whose revolutionary views on the utilisation of light in the home led to a number of ground-breaking designs.
Collaborating with Louis Poulsen in 1924/25, Henningsen produced the first version of the seminal PH multi-shade lamp, a classic piece of modern lighting design, featuring separate elements which are shaped and assembled in such a way that the bulb is covered and light is directed downward, creating a soft, diffused effect.
Henningsen was aware of the importance of light in urban life, but sought a way to subdue the harshness of electric light while harnessing its mood-altering properties, believing that the aesthetic of an interior is highly dependent on how light is used.
