three goals are safety, simplicity and effectiveness.
mirror is approximately 3-4 feet on a side. The mirrors
are mounted on reliable, commercially
available solar cell tracking actuators. The mirrors are
curved slightly, so each mirror projects a 100x100 foot
illuminated square on the ground. They are also coated to
prevent reflecting UV light. In this way, sunlight is diluted
by each mirror, ensuring eye safety- yet their combined
power can illuminate the footprint as brightly as a beach
on a summer day.
concept was tested manually on a 30 story building, and
works as described. There are typically 200 sunny or partially
sunny days in NYC each year- but even with cloudy skies
the footprints will glow subtly, yet powerfully.
200 mirrors are required, covering 2000 ft2 windows in the
tower. Preferably, the mirrors are the windows, so the actuators
reside within the body of the towers for easy installation