发明名称 Image display apparatus, and transmissive screen and reflecting mirror used for same
摘要 The present invention provides a technique suitable for making a set more compact by realizing reduction in height and reduction in depth. An image display apparatus of the present invention includes a reflecting mirror (4) for reflecting the image sent from a projection lens (2), and guiding the image to a transmissive screen (3). The reflecting-mirror (4) includes a planar mirror section (4a) for reflecting, of the entire image exiting the projection lens (2), only image portions projected onto the upper section of the transmissive screen (3), and a Fresnel mirror section (4b) with multiple reflective prisms for reflecting only image portions projected onto the lower section of the screen (3).
申请公布号 US7460301(B2) 申请公布日期 2008.12.02
申请号 US20050062742 申请日期 2005.02.23
申请人 HITACHI, LTD. 发明人 IMAFUKU DAISUKE;YOSHIKAWA HIROKI;OHISHI TETSU
分类号 G03B21/56;G02B3/08;G03B21/60 主分类号 G03B21/56
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