Louis Poulsen | PH 3½-2½ Floor Lamp
Available here in high-lustre chrome-plated.
Poul Henningsen designed the three-shade system during 1925/1926.
Throughout his life, PH sought to create glare-free lighting; aiming to direct light where it was most needed, and creating soft shadows while using incandescent bulbs as a light source. The 3½-2½ Floor light is a member of the three-shade family and is one of 19 versions available today.
PH was the first person to pursue a scientific approach to light and use the logarithmic spiral as a basis. By using a design based on the logarithmic spiral he achieved even distribution of light over the entire curve of the shade. This even light distribution, together with the diffuse reflection through the glass, made it possible to control glare and shadow. Each shade reduces the amount of light equally, due to their distance from the light source. The PH light model numbers refer to the shade size. Each top shade had a corresponding set of middle and lower shades. In the pure models, such as the 2/2, the top shade has a size of about 20 cm, with corresponding lower shades. PH 3½-2½ Floor consists of an approximately 35 cm top shade with lower shades. These hybrid models were introduced due to the desire to hang pendants at lower heights.
The system was also used for floor, table and wall lamps. PH 3½-2½ Floor in its current form was introduced in 2002.
Available here in high-lustre chrome-plated.
Poul Henningsen designed the three-shade system during 1925/1926.
Throughout his life, PH sought to create glare-free lighting; aiming to direct light where it was most needed, and creating soft shadows while using incandescent bulbs as a light source. The 3½-2½ Floor light is a member of the three-shade family and is one of 19 versions available today.
PH was the first person to pursue a scientific approach to light and use the logarithmic spiral as a basis. By using a design based on the logarithmic spiral he achieved even distribution of light over the entire curve of the shade. This even light distribution, together with the diffuse reflection through the glass, made it possible to control glare and shadow. Each shade reduces the amount of light equally, due to their distance from the light source. The PH light model numbers refer to the shade size. Each top shade had a corresponding set of middle and lower shades. In the pure models, such as the 2/2, the top shade has a size of about 20 cm, with corresponding lower shades. PH 3½-2½ Floor consists of an approximately 35 cm top shade with lower shades. These hybrid models were introduced due to the desire to hang pendants at lower heights.
The system was also used for floor, table and wall lamps. PH 3½-2½ Floor in its current form was introduced in 2002.
Available here in high-lustre chrome-plated.
Poul Henningsen designed the three-shade system during 1925/1926.
Throughout his life, PH sought to create glare-free lighting; aiming to direct light where it was most needed, and creating soft shadows while using incandescent bulbs as a light source. The 3½-2½ Floor light is a member of the three-shade family and is one of 19 versions available today.
PH was the first person to pursue a scientific approach to light and use the logarithmic spiral as a basis. By using a design based on the logarithmic spiral he achieved even distribution of light over the entire curve of the shade. This even light distribution, together with the diffuse reflection through the glass, made it possible to control glare and shadow. Each shade reduces the amount of light equally, due to their distance from the light source. The PH light model numbers refer to the shade size. Each top shade had a corresponding set of middle and lower shades. In the pure models, such as the 2/2, the top shade has a size of about 20 cm, with corresponding lower shades. PH 3½-2½ Floor consists of an approximately 35 cm top shade with lower shades. These hybrid models were introduced due to the desire to hang pendants at lower heights.
The system was also used for floor, table and wall lamps. PH 3½-2½ Floor in its current form was introduced in 2002.