发明名称 ILLUMINATION DEVICE AND PROJECTION VIDEO DISPLAY DEVICE
摘要 An illumination device includes a first light source unit having a plurality of first light sources, and a first reflection unit for guiding light beams emitted respectively from the first light sources in an identical direction. The illumination device further includes a second light source unit having at least one second light source. A center of an optical axis of the second light source is defined in an area where a light amount distribution of light beams to be emitted from the first light source unit and reflected on the first reflection unit is relatively small.
申请公布号 US2008259284(A1) 申请公布日期 2008.10.23
申请号 US20080102156 申请日期 2008.04.14
申请人 SANYO ELECTRIC CO., LTD. 发明人 MAEDA MAKOTO;MASHITANI KEN;ARAI KAZUHIRO;KANAYAMA HIDEYUKI;IKEDA TAKASHI;ABE TAKAAKI
分类号 G03B21/28;F21V7/04 主分类号 G03B21/28
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