Designer lamp made of hand-blown glass

The " PH 4½-3½ " floor lamp by Louis Poulsen is an elegant lamp featuring Scandinavian design. The three-part shade is made of hand-blown opal glass and casts a beautiful glow in any room—whether in the living room, bedroom, or home office. Designer Poul Henningsen drew inspiration from the logarithmic spiral to create a particularly beautiful light based on scientific principles. Today, this lamp—designed in the 1920s—is a versatile classic and a staple of interiors around the world.

Highest-quality materials for first-class design

The lamp was designed based on the principle of a reflective three-shade system that directs most of the light downward. The shades are made of hand-blown, opalized, three-layered glass—glossy on the outside and matte sandblasted on the inside—which results in a soft and diffuse light distribution. The base and stem are made of high-gloss chrome-plated brass and steel.

Architecture and Lighting: Poul Henningsen

Poul Henningsen was born in Copenhagen, the son of the famous Danish actress Agnes Henningsen. He did not earn a degree in architecture, but studied at the Frederiksberg Technical School from 1911 to 1914 and then at the Technical College in Copenhagen from 1914 to 1917. He also began to apply traditional functionalist architecture. However, his professional interest soon focused primarily on lighting design—and that is what he is famous for.

Exquisitely Designed Lighting— Louis Poulsen

The Danish lighting manufacturer Louis Poulsen , founded in 1874, creates products that embody the duality of design and light. Every detail of a design serves a specific purpose. Every design begins and ends with light. Louis Poulsen offers a wide selection of lighting solutions for indoor and outdoor use, covering both professional applications and residential settings. In close collaboration with designers and architects such as Poul Henningsen, Arne Jacobsen, Verner Panton, Øivind Slaatto, Alfred Homann, Clara von Zweigbergk, nendo – Oki Sato, and GamFratesi, Louis Poulsen has established itself as one of the world’s leading providers of architectural and decorative lighting.