In 1989 Ply-Light Corporation was founded by Walter A. Johanson.
Between 1990 and 1999 WAJ was awarded numerous US and International
patents for methods to form light pipes using 3M Optical Lighting Film.
In 2000 WAJ was awarded
a US patent for methods to form Light Distribution Tubes
(not using 3M Optical Lighting Film).
In 2005 WAJ was awarded
a US patent for a method to form a solar hybrid
light distribution system.
In 2009 Ply-Light Corporation became db Ply-Light Systems, L.L.C.
In 2009 patent applications were filed for light distribution systems
using new methods to form Light Distribution Tubes and Light Distribution Rods for use in unique locations and environments.
WHY PLYLIGHT?
Unique patented 3M
Optical Light Film (OLF) and non OLF Light Distribution Tube designs.
Unique design of
illuminators to work with short arc metal halide bulbs, plasma lamps, LEDs,
and fiber optic injected light.
Multiple
polycarbonate films allow for controlled diffusion of light and the
possibility of opaque surfaces, color, and graphics to be included within
the tube walls.
Ability to form
finished tubes from multiple polycarbonate films allowing the tubes to be
made “in-the-flat”, to be shipped flat, and to be rolled into tubes at or near
a job site – shipping product not air.