Momente der Tangent

"Interactivity" in product design

Yujing Du

Februar / February - 2023

Hochschule Düsseldorf

Master of Arts


With the first sunshine that touches the earth, the beginning of a new daily cycle is determined. The sun's rays, symbolised here by a straight line, are always tangential to the earth's sphere as it rotates. Adopting this phenomenon, the concept of the luminaire was born. The cylinder and the luminescent rod symbolise the earth and the rays of light. The luminaire only shines when the cylinder rolls towards the light stick and forms a unit through the tangent.