发明名称 PROJECTION DISPLAY
摘要 A projection type image display apparatus is provided which includes a housing to hold an optical system including multi-lenses, a polarized-light conversion element and the color separation portion The housing operates to provide an optical path between a light source, located outside the housing, and penetration-type image display elements and an optical synthesizing portion also located outside of the housing.
申请公布号 US2009207381(A1) 申请公布日期 2009.08.20
申请号 US20090419423 申请日期 2009.04.07
申请人 HIRATA KOJI;YATSU MASAHIKO 发明人 HIRATA KOJI;YATSU MASAHIKO
分类号 G03B21/28;G03B21/14 主分类号 G03B21/28
代理机构 代理人
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