Edo Kriegsmann is a German designer with a taste for interactive furniture, furnishings, and fixtures, including but not limited to light-up tables and this illuminated series of steps.
The sensor at the bottom, once tripped, starts the sequence of lights leading up to the top of the steps – while not demonstrated, one has to hope there is a corresponding sensor at the top that performs the same function in reverse.
Read more: http://dornob.com/diy-led-steps-motion-sensing-staircase-illuminates-itself/#ixzz3TzNH7qSS