公开(公告)号：EP1211901A2

公开(公告)日：2002-06-05

申请号：EP01309053.5

申请日：2001-10-25

申请人： NEC Viewtechnology, Ltd.

发明人： Makita, Kazuya, c/o NEC Vieuwtechnology, Ltd.

IPC分类号： H04N9/31

CPC分类号： H04N9/3141 ,  H04N9/3105 ,  H04N9/315

摘要： A reflecting portion is formed on a periphery of an opening portion 20 of an aperture element for a video projector. The reflecting portion 21 reflects a portion of the illumination light illuminating a reflecting type display element, which is other than a necessary portion, for expanding and projecting an image information by a projecting lens to an area outside an incident area of the projecting lens, such that the light portion is not incident on the projecting lens.