Projection type image display apparatus
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United States of America Patent
Stats
-
Jan 17, 2006
Grant Date -
Sep 11, 2003
app pub date -
Nov 13, 2002
filing date -
Mar 7, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image display technique which projects R, G, and B light rays on a display device to form an image with an increased utilization ratio of light and an increased screen brightness. R, G, and B light rays as a result of color separation are reflected by plural reflective surfaces on the inner side, etc. of a rotary polyhedral reflector, so that, as the reflector rotates around a central axis and its reflection plane sequentially changes from one reflective surface to a next one, the reflected light rays are projected on a display device surface in different positions and scroll in a prescribed direction.
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