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Lightdrops / umbrella


Lightdrops will light the darken world with rain falls, and the light will protect the pedestrian safely from darkness and accident. As water pours over the surface of the umbrella, potential energy from raindrops slamming onto the conductive membrane called PVDF(Poly vinyl difluoride) transforms into electrical energy powering embedded LEDs sending your umbrella ablaze with light. The heavier the rain, the brighter the light to help you see your way.
The proper use of small scale dissipating energy will not result in any harm to the environment unlike the conventional battery being disposed of.


Hongik University

Hongik University
Product Design
Jochiwon, South Korea

Young-wan, Yang
Sang-hoon, Lee


Sang-kyun, Park

Sang-kyun, Park
Seoul, South Korea

Sang-kyun, Park