Roxanne’s dark chamber encloses a laser pointer, a sensor, and two motorized chunks of mirrored glass. The mirrors rotate, searching for the instant in which they reflect the laser directly onto the tiny electronic “eye,” triggering a momentary pause before search begins again.

“Roxanne, you don’t have to put on your red light.” Roxanne, sung by The Police.

Roxanne has been shown at:
       phaeno, Wolfsburg, Gemany.
       Parque de las Ciencias, 
Granada, Spain,