发明名称 Laser projection source with polarization diversity element for speckle reduction
摘要 An imaging system (200), such as a scanned laser projection system, includes one or more laser sources (201) configured to produce one or more light beams (204), and a light modulator (203) configured to produce images (206) from the light beams (204). A polarization diversity element (221), which can be manufactured from a birefringent material or from a polymerized liquid crystal layer, is disposed within the imaging system (200). The polarization diversity element (221) is configured to alter the polarization of an incident beam to create a transmitted beam comprising diverse polarization patterns, thereby reducing speckle in projected images.
申请公布号 US8287128(B2) 申请公布日期 2012.10.16
申请号 US20090573563 申请日期 2009.10.05
申请人 LESCURE ALBAN N.;DUELLI MARKUS;FREEMAN MARK O.;TELLER WITOLD R.;MICROVISION, INC. 发明人 LESCURE ALBAN N.;DUELLI MARKUS;FREEMAN MARK O.;TELLER WITOLD R.
分类号 G03B21/14 主分类号 G03B21/14
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