Combining P and S rays for bright stereoscopic projection

Details Combining P and S rays for bright stereoscopic projection Combining P and S rays for bright stereoscopic projection

2011-06-14

2011-06-14

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Polarizer or interference filter

C353S007000, C353S008000, C353S030000, C353S031000, C353S098000, C353S099000, C353S122000, C349S005000, C349S007000, C349S018000, C349S067000, C349S096000, C349S089000, C349S097000, C349S106000, C349S115000, C348S042000, C348S057000, C348S058000, C348S059000, C348S060000, C359S462000, C359S464000, C359S465000

Reexamination Certificate

active

07959296

ABSTRACT:
A multiple path stereoscopic projection system is disclosed. The system comprises a polarizing splitting element configured to receive image light energy and split the image light energy received into a primary path and a secondary path, a reflector in the secondary path, and a polarization modulator or polarization modulator arrangement positioned in the primary path and configured to modulate the primary path of light energy. A polarization modulator may be included within the secondary path, a retarder may be used, and optional devices that may be successfully employed in the system include elements to substantially optically superimpose light energy transmission between paths and cleanup polarizers. The projection system can enhance the brightness of stereoscopic images perceived by a viewer. Static polarizer dual projection implementations free of polarization modulators are also provided.

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