Astronomer Carl Pulfrich, the namesake for the optical illusion created by 3-D glasses featuring a dark lens and a clear lens, was blind in one eye and never got to see the effect named after him. However, the German optical scholar knew the illusion would exist under the right circumstances. The basis for the Pulfrich 3D viewing technique is that images seen through the clear lens reaches the brain slightly faster than images seen through the dark lens. With properly sequenced movement recorded on film or video, objects moving across the horizontal field of vision create the illusion of 3D. Traditional dark and clear Pulfrich 3D glasses work with television broadcasts and video presentations.

Over a three-month period, American Paper Optics manufactured over 20 million (17 truckloads) Pulfrich 3D glasses with a custom lens combination for Televisa in Mexico. The glasses were distributed for a phenomenally successful month-long television broadcast. In the summer of 2000, LensCrafters distributed 6.4 million Pulfrich glasses produced by America Paper Optics with a special patented 3D viewing system for an in-depth broadcast of Discovery Channel's Shark Week in 3D. American Paper Optics offers flexible lens color combinations for special 3-D production systems. No order is too small or too large! Call on us for Pulfrich glasses for everything from corporate training videos to full-scale television broadcasts.

LensCrafters distributed more than 6.4 million custom-shaped Pulfrich glasses for "deep" impact viewing of Discovery Channel's Shark Week in 3D.

MCI developed a corporate video and utilized 7,000 Pulfrich glasses in a nationwide training campaign.

In 1994, Fox distributed 6 million custom printed Pulfrich glasses in a television sweeps promotion involving the broadcast of "Married With Children" and "Revenge of the Nerds IV." A custom lens color combination was developed for use with their special 3-D system.

In October 1997, APO teamed up with a German teleproduction company, Telcast International, to produce 20 million glasses, the largest order of Pulfrich glasses ever manufactured. The patented 3-D system required a custom lens color combination for a television broadcast by Televisa in Mexico.

A video production company used 25,000 dark and clear Pulfrich glasses in a business banking training video promotion.

Give us a call. We'll project your next video production or television broadcast into the third dimension!

( Anaglyphic, 3-D Fireworks, HoloSpex, ChromaDepth, Decoders, Polarized, Day Shades, Pulfrich, Custom Shapes, Hand-held/Bind-In Viewers, Retail, True-Vue, Eclipsers)