Combining P and S rays for bright stereoscopic projection
First Claim
1. An apparatus for projecting stereoscopic images, comprising:
- a polarizing splitting element configured to receive image light energy and split the image light energy received into a primary path of light energy transmitted along a primary path and a secondary path of light energy transmitted along a secondary path;
a reflector configured to receive path light energy from one of primary path energy and secondary path light energy and said path light energy toward a surface; and
a first polarization modulator positioned in the primary path and configured to receive the primary path of light energy, modulate the primary path of light energy into primary path modulated light energy, and transmit primary path modulated light energy toward the surface.
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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.
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Citations
23 Claims
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1. An apparatus for projecting stereoscopic images, comprising:
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a polarizing splitting element configured to receive image light energy and split the image light energy received into a primary path of light energy transmitted along a primary path and a secondary path of light energy transmitted along a secondary path; a reflector configured to receive path light energy from one of primary path energy and secondary path light energy and said path light energy toward a surface; and a first polarization modulator positioned in the primary path and configured to receive the primary path of light energy, modulate the primary path of light energy into primary path modulated light energy, and transmit primary path modulated light energy toward the surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of projecting stereoscopic images, comprising:
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receiving image light energy; splitting the image light energy received into a primary path of light energy transmitted along a primary path and a secondary path of light energy transmitted along a secondary path; receiving secondary path light energy and directing reflected secondary path light energy toward a surface; and modulating the primary path of light energy into primary path modulated light energy, and transmitting primary path modulated light energy toward the surface.
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17. An apparatus for projecting stereoscopic images, comprising:
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a splitter configured to split the image received into a primary path and a secondary path; a reflector positioned in the secondary path configured to reflect secondary path light energy; and a polarization modulator arrangement comprising at least one polarization modulator positioned in the primary path and configured to modulate the primary path of light energy; wherein the polarization modulator arrangement additionally modulates secondary path light energy. - View Dependent Claims (18, 19, 20, 21)
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22. An apparatus for projecting stereoscopic images, comprising:
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a polarizing splitting element configured to receive image light energy and split the image light energy received into a primary path of light energy transmitted along a primary path and a secondary path of light energy transmitted along a secondary path; a reflector configured to receive path light energy from one of primary path energy and secondary path light energy and said path light energy toward a surface; and a static polarizer element configured to rotate one of said primary path light energy and said secondary path light energy. - View Dependent Claims (23)
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Specification