Combining P and S rays for bright stereoscopic projection
DCFirst Claim
1. Apparatus for projecting stereoscopic images, comprising:
- a first polarizing splitting element configured to receive first image light energy and split the first image light energy received along a first primary path and along a first secondary path;
a first reflector configured to receive one of first primary path of light energy and first secondary path of light energy and to reflect the one of first primary path of light energy and first secondary path of light energy toward a surface;
a first rotator configured to receive one of first primary path of light energy and first secondary path of light energy and to rotate the one of first primary path of light energy and first secondary path of light energy;
a second polarizing splitting element configured to receive second image light energy and split the second image light energy received along a second primary path and along a second secondary path;
a second reflector configured to receive one of second primary path of light energy and second secondary path of light energy and to reflect the one of second primary path of light energy and second secondary path of light energy toward a surface; and
a second rotator configured to receive one of second primary path of light energy and second secondary path of light energy and to rotate the one of second primary path of light energy and second secondary path of light energy.
9 Assignments
Litigations
1 Petition
Accused Products
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.
52 Citations
20 Claims
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1. Apparatus for projecting stereoscopic images, comprising:
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a first polarizing splitting element configured to receive first image light energy and split the first image light energy received along a first primary path and along a first secondary path; a first reflector configured to receive one of first primary path of light energy and first secondary path of light energy and to reflect the one of first primary path of light energy and first secondary path of light energy toward a surface; a first rotator configured to receive one of first primary path of light energy and first secondary path of light energy and to rotate the one of first primary path of light energy and first secondary path of light energy; a second polarizing splitting element configured to receive second image light energy and split the second image light energy received along a second primary path and along a second secondary path; a second reflector configured to receive one of second primary path of light energy and second secondary path of light energy and to reflect the one of second primary path of light energy and second secondary path of light energy toward a surface; and a second rotator configured to receive one of second primary path of light energy and second secondary path of light energy and to rotate the one of second primary path of light energy and second secondary path of light energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of projecting stereoscopic images, comprising:
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receiving first image light energy; splitting the first image light energy received along a first primary path and along a first secondary path; receiving the first secondary path of light energy and directing the first secondary path of light energy toward a surface; receiving one of the first primary path of light energy and first secondary path of light energy and rotating the one of first primary path of light energy and first secondary path of light energy; receiving second image light energy; splitting the second image light energy received along a second primary path and along a second secondary path; receiving second secondary path light energy and directing second secondary path light energy toward a surface; and receiving one of the second primary path of light energy and second secondary path of light energy and rotating the one of second primary path of light energy and second secondary path of light energy. - View Dependent Claims (19, 20)
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Specification