ELECTROMECHANICAL INFRAPHOSPHOR

See photos below

• Proposal, PDSTWE 911 Media Arts center

ARTIST NAME:
  William J. Beaty 

TYPE:
  Kinetic sculpture; glowing green surface with moving scanner

DIMENSIONS:
  Wall-mounted, somewhat flat, attaches to a wall at the top, 
  approx 5ft vertical, 5 ft wide, 8in thick, power supplies inside.

MATERIALS:
   Wood structure, Acrylic sheets, violet LEDs, IR phototransistors,
   Zinc Sulfide paint, guide rails, horizontal scan mechanism.

INTERACTION:
   A vertical strip of close-packed IR sensors and LEDs moves horizontally
   back and forth over a flat phosphorescent surface.  As long as
   infrared light strikes the sensors, the LEDs remain off and the
   phosphor surface remains dark.  If a gallery visitor stands in
   front of the device, they cast a shadow upon the device, which
   lights up the LEDs as it sweeps along, which paints their shadow
   in brilliant green light upon the phosphorescent surface.  If
   the visitor moves along, waves their arms, etc., sequential copies
   of their shadow will be painted temporarily onto the surface.

GALLERY REQUIREMENTS:   
  As with a painting, it's wall mounted at approximately waist height.  
  It requires a 120Vac outlet of only a couple of amps. The phosphorescent
  coating isn't extremely bright, so the images may not be visible in
  a brightly lit gallery.   An IR light source shines upon the surface
  at chest height.  This light could be mounted many feet away upon
  an adjacent wall.



STATEMENT:



CONTACT:
  William Beaty
  PO Box 351700
  Seattle, WA 98195-1700

  206-762-3818
  
  http://amasci.com/art/dork07/phos_IR.html