发明名称 Projection type display apparatus for displaying an image
摘要 The present invention provides a projection type display apparatus for displaying an image by which reduction of contrast is suppressed, including: a light source; a first lens array and a second lens array having a plurality of lens cell areas; a collecting lens; a display element; a projection lens; and a light shielding unit which light-shields the light fluxes from the first lens array to the second lens array, wherein the light shielding unit light-shields at least parts of all the lens cell areas except for the lens cell area in contact with an optical axis among a plurality of rectangular lens cell areas of the second lens array, and a light shielding area in the lens cell area in contact with the optical axis is smaller than that in any of the lens cell areas except for the lens cell area in contact with the optical axis.
申请公布号 US8192031(B2) 申请公布日期 2012.06.05
申请号 US20090421733 申请日期 2009.04.10
申请人 KIMURA NOBUYUKI;HITACHI, LTD. 发明人 KIMURA NOBUYUKI
分类号 G03B21/28 主分类号 G03B21/28
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