Patent ID: 8411137

Claim:
A projection system, comprising: a first projector configured to alternately project a first channel image of a 3D image and then a second channel image of the 3D image; and a second projector configured to alternately project the second channel image of the 3D image and then the first channel image of the 3D image; wherein: the first projector and the second projector are inversely synchronized such that when one projector is projecting a first channel image the other projector is projecting a second channel image and visa versa: the first projector projects the first channel image in a first set of red, green, and blue wavelengths separate and distinct from a second set of wavelengths used to project the second channel image; and the wavelengths used to project the first and second wavelength sets comprise narrowband light sources having a full width at half maximum of less than 25 nm.