Image display apparatus, and transmissive screen and...

Optical: systems and elements – Projection screen – Rear projection screen

Reexamination Certificate

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Details

C359S457000, C359S454000, C359S742000

Reexamination Certificate

active

07460301

ABSTRACT:
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).

REFERENCES:
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patent: 5274406 (1993-12-01), Tejima et al.
patent: 6407860 (2002-06-01), Funazaki et al.
patent: 6624934 (2003-09-01), Moshrefzadeh et al.
patent: 6989929 (2006-01-01), Watanabe
patent: 06-027535 (1994-02-01), None
patent: 2000-131510 (2000-05-01), None
patent: 2003-005294 (2003-01-01), None

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