Stereoscopic projector with rotating segmented disk

Details Stereoscopic projector with rotating segmented disk Stereoscopic projector with rotating segmented disk

2009-07-14

2011-11-29

Dowling, William C (Department: 2878)

Optics: image projectors

Polarizer or interference filter

C353S008000, C353S098000, C349S009000

Reexamination Certificate

active

08066382

ABSTRACT:
A stereoscopic digital image projecting system has a light source system providing polarized illumination having a first polarization state and a beam splitting system with a rotating segmented disk in the illumination, alternately generating first and second light beams, the rotating segmented disk having outer segments alternately transmissive and non-transmissive and inner segments radially aligned with the outer segments and alternately reflective and transmissive. A polarization rotator in a path of either the first or second light beam rotates the first polarization state to a second state orthogonal to the first. A combining system combines the first and second light beams into a combined light beam. A spatial light modulator modulates the combined light beam in a manner consistent with stereoscopic image data to form first and second modulated images having substantially orthogonal polarization states. Projection optics project the modulated images onto a display surface.

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