Polarization conversion systems for stereoscopic p

专利名称：Polarization conversion systems for

stereoscopic projection

发明人：Miller H. Schuck,Michael G. Robinson,Gary D.

Sharp

申请号：US13047763申请日：20110314

公开号：US201102096A1公开日：20110825

专利附图：

摘要：A polarization conversion system (PCS) is located in the output light path of aprojector. The PCS may include a polarizing beam splitter, a polarization rotating

element, a reflecting element, and a polarization switch. Typically, a projector outputsrandomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light isdirected toward the polarization switch on a first path. The s-polarized light is passed ona second path through the polarization rotating element (e.g., a half-wave plate), therebytransforming it to p-polarized light. A reflecting element directs the transformedpolarized light (now p-polarized) along the second path toward the polarization switch.The first and second light paths are ultimately directed toward a projection screen tocollectively form a brighter screen image in cinematic applications utilizing polarized lightfor three-dimensional viewing.

申请人：Miller H. Schuck,Michael G. Robinson,Gary D. Sharp

地址：Erie CO US,Boulder CO US,Boulder CO US

国籍：US,US,US

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