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：US11864198申请日：20070928
公开号：US20080225236A1公开日：20080918
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
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容